2706 goes megasquirt

[powerline84]

Well since I have officially bought a whole bunch of parts I guess it's time to make a thread. I have taken this leap of faith based off the help of Luke, Pat, and Josh. Seeing Luke's beautiful car at DCS 18 motivated me. Not to mention the only reliability issues I have had are with Kjet and I hate it and lack of tunability . I am new to megasquirt so I would appreciate any help, guidance etc.

This is not my first fuel injection and tuning project. I built a 2006 toyota Tacoma street strip truck once and built the turbo kit and did my own tuning . Piggy back ecu, Supra injecters, trubonetics t3/t4 turbo, inovate wideband etc. and me with a laptop in the passenger seat tuning while my buddy drove it. 14 psi to a stock block and had a lot of fun with that truck .

I am considering doing a turbo as well but first I need to do the conversion.


Attached are the parts I have ordered so far with their help. I need to do some more research and see what's left. I need to look at the distributor and also the crank sensor stuff.

Parts list so far :
DPI
-spec rails and Injectors
DIY Auto Tune
-GM IAT open Element and Pigtail
-GM CLT/IAT closed Element and Pigtail
-idle air control body
-associated pigtails
-megasquirt 3 EMS system
-8' harness
-tuning cable
-Innovate LC-2
-gauge
Aeromotive fuel pressure regulator

[powerline84]

Parts still needed to figure out ...
-pcv system
-crank and cam sensors
-tps?
-keep stock distributor/fix weights
Any help in these areas ?

[opethmike]

Wish I had known you were doing this project; I could have gotten you the majority of these parts much cheaper; just sitting around on my shelf.

[powerline84]

Wish I had known you were doing this project; I could have gotten you the majority of these parts much cheaper; just sitting around on my shelf.

"Insert frowny face lol I was keeping it on the low for a while, kept defending kjet. I am done " lol

[Rich_NYS]

"Insert frowny face lol I was keeping it on the low for a while, kept defending kjet. I am done " lol

Awesome! Now I can get my spare K-Jet parts ready to sell...lol. :rock_on:

[powerline84]

Picked up some more parts. Getting some stuff from Josh as well. Things are flowing in .

[Riley88]

Fun project for sure!

[Josh]

nice! Im excited to see this happening. If let me know if I can help with a crank trigger, I know Luke has a setup.
Not really sure what Josh has to offer, but likely something as well.

[powerline84]

Efi porn 61558615726157161570615696156861567615666156561564 615636156261561615606155961573

[powerline84]

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[powerline84]

Woke up today had an abnormal day off and decided to get started . 61584615936159261591615906158961588615876158661585

Kjet Carnage for the day.
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[powerline84]

Day 2

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Hardware Still left to install:
Iac
Pcv
Fuel lines
Fpr
Tps/throttle body

Megascuirt ecu
----
A f@#$ ton of wiring

[powerline84]

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3x expansion card.61681

[powerline84]

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Installed 3sx add on card into the megasquirt and received a work of art efi throttle body from Josh.

[powerline84]

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Fuel hose/fittings and vacuum block showed up. Have everything I need to get her running .

[opethmike]

My MS setup was very simple; fuel only. Are you also doing ignition? Also curious what you are using the expansion card for?

[powerline84]

After I get the car running fuel only I plan on doing ignition as well. Possibly even throw a snail own who knows .

[powerline84]

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Spent the week of vacation pulling the wife's mini engine. And installing a new powerunit I built with my brother. Then spent a couple hours tonight on my car. Not much done just mounted a fuel pressure regulator and removed the kjet wiring from the engine compartment. Mounted throttle body .

[powerline84]

EFI conversion coming along. Done for today. All kjet components and wiring removed. Pcv /vacuum/IAC system installed . Injection harness built/ installed. Throttle setup installed and new cable ran.6185861859618606186161862

[Mark Hershey]

I converted to Megasquirt awhile back myself. Same reasons as others i reckon. I put about 120k miles on Kjet and never really had too many issues, largely i think because the car was driven nearly every day so it never had time to gum up.
I love MS for a bunch of reasons and dislike it for only one. And that one could be addressed.
My setup is MS3,Renault Alpine intake manifold from Martin Gutkoski (UK), full sequential injection, distributorless, full spark control, coil-near-plug ignition ( six GM LS3 coils), no crank sensor, all triggered by an optical trigger wheel where the distributor should be.
Likes:
All-weather, all conditions starts. No hot start issues, no replacing the fuel distributor o rings, no unplugging cold startvalve or anything.
Elegant simplicity- eliminated idle ecu, kickdown switches, cold start valve, copper pipe of doom, all the mechanical and electric k jet bits, etc.
All the spark plugs are easy access now. And probably will never have to get to them again.

Other bits like kickdown switches (and their adjustments) go away— just add a relay and tell Megasquirt what throttle position you want it activated at. Mine controls automatic transmission kickdown and shuts off ac compressor.
Programmable load control. Mine Adds 30 RPM when the ac compressor comes on. No real need because Megasquirt will adjust for engine load to keep rpm even, but kicking it up a little at idle makes the compressor happier at Texas summer stop lights.
Kicks on the cooling fans at a programmed engine temperature, not the temperature at a coolant pipe (although the otterstat can still do it too as a backup)
Adjusts to any condition as long as you have the patience to tune it. Never too rich, never too lean. Kjet was absolutely amazing in its day at compensating for far more things than a typical carb does...but it still had compromises under some conditions, too.
Programmable ignition timing means no distributor, no vacuum advance, no centrifugal advance, nothing.
No thermo- time or any other under-hood, half- buried vacuum switches.
Operates a purge valve so you can keep the charcoal cannister and not smell up your garage with fuel tank vapors
Eliminates the RPM relay
Engine runs as smooth as a gravy sandwich ( well, as smooth as an odd- fire engine ever will)

Dislike: not using a crankshaft trigger means it can take MS awhile longer to sync up with a cam-driven trigger wheel when cranking. Won’t be using it as a getaway car in a bank job.

Designing, documenting, fabricating, installing, and tuning was a real...challenge. Loved about 70 percent of doing it, the other 30 percent completely sucked at the time, but like most painful things, the memory ( or at least its intensity) fades enough to fool you into thinking you loved the whole thing.

By the way, i used the original Bosch idle valve ( ms3 can directly drive it) for awhile but switched to a functionally identical but smaller Volvo ( Bosch) valve later purely for mechanical convenience. Think of it as a wideband air flow valve- means the throttle plates are completely closed at idle and all air at idle is delivered by the valve. Also means there is no mechanical idle adjustment at all, all programmable. Regular idle valves have less control over air flow, so you have to let some air past the plates and the iac only controls a narrow range. No big deal, those work fine too, but i like that TPS 0 really means fully closed.
I am using MAP for control, no mass air sensor. May add that someday but so far haven’t had a reason to.

So far, glad i did it all. I documented it with a full schematic and revised the technical service manual to reflect the changes so some dude in the future has some hope of keeping it running.

[FABombjoy]

Dislike: not using a crankshaft trigger means it can take MS awhile longer to sync up with a cam-driven trigger wheel when cranking. Won’t be using it as a getaway car in a bank job.
FWIW I'm running crank + cam sensors and ignition control. It still takes a few extra revs to get full sync.

On Patrick's car we set it for coil negative trigger and it will start almost instantly.

[Giamanut]

I did an ms years ago on a mustang 2.3L LIMA engine that I turbo'ed fun project,
But I do see people gutting the air mixture removing the sense plate and all that but couldn't a person just flip the Rams horn upside down, make an adapter plate for it, and install a Mustang or LS throttle body Maybe even one with an IAC and Throttle position sensor. Or am I way off base with this line of thought!

[FABombjoy]

You’d want something of comparable throttle size otherwise you’ll lose the ability to control output. But a drop-in adapter for a junkyard throttle body would definitely be nice.

[powerline84]

Can you guys post pics of your cam sensor pickups and your crank sensor setups. These are both hard parts I still need to figure out .

[DARCOM]

I just used my stock distributor and put msextra in the megasquirt to do the odd fire of the engine. Also later on you could always install some throttle bodys like i did on mine.

[Giamanut]

I just used my stock distributor and put msextra in the megasquirt to do the odd fire of the engine. Also later on you could always install some throttle bodys like i did on mine.

yeah that has got to move air much better.

[Giamanut]

Can you guys post pics of your cam sensor pickups and your crank sensor setups. These are both hard parts I still need to figure out .
Is it possible to use the existing Ignition trigger with the ms? I don't know but there is one on the flywheel right?

[Bitsyncmaster]

Is it possible to use the existing Ignition trigger with the ms? I don't know but there is one on the flywheel right?

I don't think the OEM trigger shows you TDC. I think it just relates to RPM.

[Giamanut]

I don't think the OEM trigger shows you TDC. I think it just relates to RPM.
+1
Yeah I don't know other than it show RPM.

[FABombjoy]

The OEM flywheel pickup doesn't actually work. Coil negative is the fastest way to get up and running. TBH I'm not sure that there is a big advantage to full spark control on a non-turbo, stock cam motor. Other than with MS3 you can implement idle advance control which can make the B28F idle more smoothly than you'd think possible.

Hypothetically if you want programmable spark retard (partial control including some idle advance)
EITHER
-Connect MS coil in put to stock coil negative
-Move coil negative wire to tach adapter / relay coil / some passive method of generating inductive spike
OR
-Connect VR output from distributor to MS (you may have to tweak the VR conditioner, including an in-line resistor addition for both high and low RPM)
THEN
-Connect MS output to ignition coil.
-Flatten spark map table to something like 10 degrees? Then re-phase distributor until TDC idle is 13 degrees. Now you can retard spark up to whatever flat value is in the table. You can also add advance under certain conditions and dial-back others to stock.

Full spark control from distributor signal:
-Remove vac advance, weld & lock out distributor
-Connect VR output to MS
-Connect MS to ignition coul
-Set spark table to stock map and phase distributor until 13deg idle

This works but after seeing the size of the pole piece in the VR circuit I don't think its high precision.

Crank / cam sensors:
There are a lot of ways but the 36-1 wheel is probably the most common. For cam signal you could pick it up in the distributor, or find an oil-rated gear sensor and pick up the mechanical fuel pump lobe on the passenger side head. Or make up some custom piece that sits behind one of the cam covers. I removed the circuit from my distributor and modded the pole piece into a half-moon wheel. The advantage here is changing the sensor is a 5 minute job. Fuel pump lobe would probably be just about as fast to change.

If you try to run ignition from a 36-1 source on an oddfire motor you absolutely need cam phase too or half of your engine will run with incorrect timing.

[powerline84]

Luke in the short term I plan on doing the -coil pickup like you did Pats car based off of your guys positive feedback.

[Mark Hershey]

Can you guys post pics of your cam sensor pickups and your crank sensor setups. These are both hard parts I still need to figure out .

Here aresome pics of my modified distributor optical pickup.
Started with a distributor shell ( gutless) from dmc
Machined a collar for the triggerwheel
Fabricated the triggerwheel from sheet aluminum
Made a mount for the Banner Electronics light source and optical sensor fiber optic leads
Laser cut aPlexiglas cover for the distributor ( not shown)

Dmc distributor shell Part#: 102751

[powerline84]

Wow pretty impressive . Nice work

[powerline84]

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Nothing to glamorous but progress continuous. Cut my fingers all to hell making fuel lines. Removed rear bulkhead. Pulled the ecus. Left the ignition ecu for now. Starting to mock up the wiring .

[powerline84]

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[powerline84]

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Fuel lines in

[powerline84]

61986

Throttle is hooked up . Fuel lines are tight. Mixture unit is fully converted. Just waiting on some orings and the hardware conversion is done. Downloaded tuner studio and logging software. Hoping to have her running in the next few weeks .

[powerline84]

Before
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After
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Hardware side is done. Time for wire,test,tune.

[powerline84]

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Oh the joys of wiring . Everything's mocked up but the wideband . Almost test and tune time.

[powerline84]

She's alive !!! First start.

https://youtu.be/KPl7vUENnVs

Mark Hershey helped me chase down a starter fault then Luke and Pat answered some setup questions and boom she's alive. I can't thank these guys enough !!!

[Mark Hershey]

She's alive !!! First start.

https://youtu.be/KPl7vUENnVs

Mark Hershey helped me chase down a starter fault then Luke and Pat answered some setup questions and boom she's alive. I can't thank these guys enough !!!

Congratulations! Another Megalorean is born!

[powerline84]

Something very frustrating I learned tonight thanks to Mark's help is that even though you have a 5-speed car and I have seen many people say you can ditch the red bulkhead harness. ...pin #18 must remain or be routed to a ground. It is the white/yellow wire that grounds the neutral safety switch/ starter inhibit solenoid and if it is not grounded your starter will not work !!!. So I added a new wire and grounded it to the intake for now. I will relocate as I finalize the wiring .
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[BABIS]

Something very frustrating I learned tonight thanks to Mark's help is that even though you have a 5-speed car and I have seen many people say you can ditch the red bulkhead harness. ...pin #18 must remain or be routed to a ground. It is the white/yellow wire that grounds the neutral safety switch/ starter inhibit solenoid and if it is not grounded your starter will not work !!!. So I added a new wire and grounded it to the intake for now. I will relocate as I finalize the wiring .
62088

you can simply add a new ground wire on the starter relay base and get rid of the original white/yellow wire..

[powerline84]

I know but I want to keep the Delorean wiring not related to fuel injection stock.

[powerline84]

625616256262563

Had some spare time to work on my car.
Now that the car runs I am finalizing the install and the wiring . The engine harness is almost done. Running a plug for the EFI harness in place of the old kjet connectors. It's a wx tight connector. I'll end up pro sealing a patch or riveting a patch over the small open hole. Then finalize the interior side of the harness. Slowly coming together.

[powerline84]

6256562566

[powerline84]

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Waterproof gm wx connector style harness complete. Tapped into rpm relay circuit and pulled wires from socket. Megasquirt controlls the fuel pump through origional wires via a gm 2 piece connector.

[powerline84]

https://youtu.be/FQHJO741SCk


https://youtu.be/FQHJO741SCk

[powerline84]

6305463053

Finalizing details of the fine details lol finishing build. Eventually I write a detailed guide for what I did and post in the thread.

[JBaker4981]

Looking good brother! Can't wait to see MCFRY wheeling around

[powerline84]

Thanks!

[powerline84]

6312363124

Done ! Time to drive and tune.

[powerline84]

6312863129

I touched on this earlier but wanted to clarify as I finished the wiring. Some people who went to EFI with a manual trans were able to simply eliminate the red plug. There seems to be some discrepancy in which harness your car came with. I converted to a later style engine harness when I first built the car because of its better routing on the engine i.e. cleaner and more compact. My car is a 5 speed . I had to retain 4 pins on the red plug.

Pin 14/18 starter switch ground circuit.
Pin 12 green/brown reverse light switch
Pin 15 light green/white power to reverse lights

I figured this out the hard way when my car wouldn't start and I had no reverse lights. Mark H. was a life saver in this and helped me isolate the problems.

[Josh]

6312863129

I touched on this earlier but wanted to clarify as I finished the wiring. Some people who went to EFI with a manual trans were able to simply eliminate the red plug. There seems to be some discrepancy in which harness your car came with. I converted to a later style engine harness when I first built the car because of its better routing on the engine i.e. cleaner and more compact. My car is a 5 speed . I had to retain 4 pins on the red plug.

Pin 14/18 starter switch ground circuit.
Pin 12 green/brown reverse light switch
Pin 15 light green/white power to reverse lights

I figured this out the hard way when my car wouldn't start and I had no reverse lights. Mark H. was a life saver in this and helped me isolate the problems.

Ha! It seems like anyone doing harness work has found this out the hard way. You think you are all done, but the car wont turn over.

[powerline84]

Fuel side conversion is complete. Car is tuned. Had some issues at the tuner shop . The DMC Houston pump failed and the accumulator. Car wasn't making consistent pressure to the aeromotive regulator. Pulled pump it was intermittent and making noise. Replaced pump. Accumulator had failed so bad it was sending most of the pressure back to the tank via the return. Both where bought new in 2017. Replaced with a Delphi fuel pump. (The Tahoe pump ) . Thanks to Rafael and Josh on this pro tip. DPI sells a qaulity kit with nice lines and fittings that includes this pump.

https://deloreanindustries.com/1-fuel-pump-updated-w-divorced-sender/

Or aftermarket
The part number for the pump is
Part #
FG0089-11B1

https://www.summitracing.com/parts/dfp-fg0089?seid=srese1&gclid=CjwKCAjw1v_0BRAkEiwALFkj5mSbPjQBooZlWtCZndud oUSzF8BKmvR8LSVePbnJYCVTpdA85wRy1RoCVnwQAvD_BwE

Bypassed the accumulator as it's no longer needed.

Now moving on to ignition control .

Fiber-optic distributor - thanks Mark

LS7 coil packs

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[powerline84]

Stick ignition system completely removed . Gone forever6352763528

[ramblinmike]

The DPI fuel pump setup is awesome. I went with it after my year-old fuel pump boot turned into goo and started leaking gas everywhere after a fill-up. I didn't realize how loud the OE-style pumps were! Your new dizzy/cam sensor setup looks great - please keep the updates coming (I'm taking notes from afar). How are you planning on mounting the LS coils?

[powerline84]

Thanks ! I am going to mount some coil packs in place of where the ignition resistor use to be. I Tore the top end off today. Cleaned the vod. Installed the distributor. Removed all stock kjet and if ignition wiring. Waiting on some coil pack mounts and spark plugs to finish the hard side. Then I started making a GM hei conversion Kit for a fellow owner and buddy of mine in the TNDMC club.


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[powerline84]

Engines back together. Fiber optic distributor installed. XP103 iridium plugs. 8.5mm MSD spark plugs wires. LS Coil pack harnesses built. Waiting on my coil mounts to come in (hopefully today). Then it's just mount the coils and wire up the ignition side of MS3x megasquirt.

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[powerline84]

Mounts came in. I am gonna modify them but you get the idea .

[powerline84]

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Coil packs mounted

[powerline84]

Wires made. Hardware side of ignition conversion done.63691

[Delorean Industries]

Yes!

[powerline84]

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Waiting on a damn reistor I need to come in . Then another day of work on wiring and clean up . Should be ready to test fire.

[ramblinmike]

Wires made. Hardware side of ignition conversion done.63691

That looks awesome!

[powerline84]

That looks awesome!

Thanks !

[powerline84]

She runs on sequential! Working a sync loss issue right now. I will post back once I have it sorted.

[powerline84]

Worked with Luke and Mark . Found that i am getting some random tooth spikes on my megasquirt tooth logs likely causing the sync loss. Making a new trigger wheel for my distributor now .

[vwdmc16]

Still an odd fire engine? I've been looking more info on 6 coil ignitions still odd fire. Such little aftermarket support for our rare odd firing order.

Good luck on your sync loss issues

[powerline84]

Yep she is still odd fire. We believe the issue is the trigger wheel in the optical distributor. Having a new wheel made now.

[powerline84]

Had another copy of Marks trigger wheel made. 63827
This one should fix the problem. Fingers crossed

[NorthEastJBD]

I am looking for a recommendation of where to purchase. Is DIY the best place to get?

I also saw that some of you sell parts? Is that true or you just have the parts?

Is there a full list of what you guys would recommend? While reading through I kept seeing where more parts were required.

Is this a proprietary trigger wheel design? (If not would I be able to either buy one or get detailed drawing?)

I am finally tired of working on the fuel system. I think I might have blown one of my turbo's because of it.

looking forward to seeing your engine finished. It looks REALLY nice!

[Delorean Industries]

We offer just about everything separate from our full system for owners looking to do a DIY build.

www.deloreanindustries.com

[FABombjoy]

I am finally tired of working on the fuel system. I think I might have blown one of my turbo's because of it.
I employed almost every cockamamie k-jet mod available and could never get the fueling satisfactory.

If you're willing to go EFI you will not regret it.

There's a handful of us regular users with EFI conversions, both in n/a and turbo form, ranging from fuel only to full ignition control.

[NorthEastJBD]

Thanks.

I am going to start making my full xls list. I really like the Delorean Industry Rails.

To bad I already went through all the airing and cleaned it up less than 2 years ago.

[powerline84]

Diy auto tune is the place to get all your basic EFI sensors and megasquirt components.

I am running Josh's Injectors, rails, and integrated TPS throttle body (nice unit).

My distributor and trigger wheel design was done by Mark H.

The trigger wheel you see above was machined by my family. I am currently on my 4th trigger wheel design.

Once my system is final and all the kinks are worked out I'll post results.

Once my system is final I will post a parts list for DIY guys.


As for the conversion ...it's a large undertaking but I can tell you it's with it . I drove my car fuel only batch fire or a short time before deciding to go sequential.

The drivability was substantially improved. Throttle response, starting, idle etc.


I think Luke said before "you just gotta take it one wire at a time". If you look at the whole conversion at once you will get overwhelmed. But if you focus on one thing at a time like installing fuel rails/injectors. Installing a CLT sensor etc it's not bad at all .

I'll tell you what else is cool. During my trials and tribulations when I am trouble shooting something it's really cool to be able to hook up your computer and click start log of many different types then be able to send that to the other EFI guys and figure things out . Then plugging a computer in to get instant data is amazing. Or you can try and make kjet run right by throwing pixi dust at it lol

Also thanks for the compliment!

[NorthEastJBD]

This is awesome, thanks!

My family also owned an OEM shop. Did that for 20 years.

Part of the reason I am doing this is I am in management now & don't get to do the hands on anymore.

My background is toolmaker, electrical, computer programming . . .

I also miss my CNC. I only have manual Bridgeport.

[powerline84]

Update . Sync loss issues resolved. Thanks to Marks help . Trigger wheel version 4.0 . Fixed it. Now I am gonna re do my coil harness . Finalize the ignition wiring,change plugs and oil and take her to the dyno then enjoy my seqential ignition and fuel converted ms3 oddfire prv.

[powerline84]

Coil pack harness

[SS Spoiler]

I think he's standing on the chair....

[powerline84]

63944

[powerline84]

MS3x Full sequential fuel and Ignition coil near plug odd fire prv conversion complete.

https://youtu.be/cU6SZq9KVsU

Strong assist points go to :
Luke , Pat, Mark, and Josh

[nkemp]

Nice work. I like how the engine sounds in the videos!

Any recommendations for a good how-to for converting to MS-EFI (DeLorean or other)? I've read some but it leaves me wanting more. I don't want to turn my B+ CIS into a C- MS-EFI.

[FABombjoy]

MS-EFI is a number of simple individual circuits that come together and form a complex interrelated system.

I think therein lies the challenge - there are so many ways to approach conversion that it can become a bit paralyzing in terms of figuring out where to start.

I’ve read and personally seen several converted cars and there are some great, some puzzling, and some downright dangerous systems driving around out there.

But once it’s working and you get the hang of the software, you’ll wish you’d done it sooner.

[CFI]

Nice work. I like how the engine sounds in the videos!

Any recommendations for a good how-to for converting to MS-EFI (DeLorean or other)? I've read some but it leaves me wanting more. I don't want to turn my B+ CIS into a C- MS-EFI.

I wish there was a solid “how-to” as well. The documents I’ve read are all over the place as far as helpfulness, with most of them being only slightly helpful.

[nkemp]

... I think therein lies the challenge ...

I'm not sure the DeLorean is where I should cut my teeth with that challenge:). It runs well (moreso in this cooler weather for whatever reason) and I don't want to disable it chasing something better. I have a couple 3.0L engines (doesn't everyone?) that I could play with. But that goes down the path, as so often happens, where the original objective is a minor effort relative to all the supporting requirements (like setting up a running engine test stand). I often ponder what other vehicle I could get and convert to MS-EFI as a learning experience.

Conceptually MS-EFI makes sense but the dirt is in the details.

[FABombjoy]

I'm not sure the DeLorean is where I should cut my teeth with that challenge:). It runs well (moreso in this cooler weather for whatever reason) and I don't want to disable it chasing something better.

It's where I started :)

TBH the DMC is a fairly generous platform to start with for EFI. Lots of room in the engine bay and lots of nooks & crannies to hide things like the ECU and wideband controller. High resale value of functioning K-jet parts means a fairly large portion of the conversion cost can be recouped at the end.

EV12 type Bosch injectors fit in the stock ports nicely and spray directly in to the intake. The fuel rails can be custom ordered. I think the most challenging thing to fabricate well is a throttle position sensor. DPI has DIY solutions for both - premade rails and an updated throttle body w/ integrated TPS. I cobbled my TPS together with some aluminum brackets. It's not the most elegant but it works well enough. You can tune without TPS but having one makes a lot of things easier.

Some great work has already been posted in the EFI regarding adapter fittings for the stock fuel lines which is a real timesaver.

The only thing that gets me going is cheap or inappropriate fuel hose & fitting selection. Things like "sort by cheapest first" hose, NPT fittings, plumbing aisle parts, rubber hose worm-clamped to barbed fittings. I've seen all of these things in DMC EFI conversions and none of that is safe or appropriate for fuel. Pick a quality brand & system for all fittings & hose, and read up on how to assemble them to manufacturers specification. On the pressure side I used all Eaton steel fittings and PTFE hose w/ steel braid. It's pricey but once installed it's not something to worry about. Anticipate engine movement and build-in slack & flex on the feed & return.

I was going to volunteer to present my experiences (and challenges) at DCS this year. I think we talked a little at '18.

[NorthEastJBD]

I have attached my drawing for my Megasquirt conversion. Please provide any pertinent information or critique.

Thanks.

[FABombjoy]

Now that's pretty darn organized! Is this an Island Twin Turbo conversion?

I would probably look to run a single boost control solenoid, to lower cost and reduce points of failure.

Make sure that your wastegate reference source is as close to the intake manifold as possible, too. Megasquirt is (annoyingly) hardcoded to activate boost control only within a certain range of 100kPa. Depending on your wastegate springs and system pressure drop, using the compressor output may give you a laggy feeling right around 100kPa if the wastegates float open a touch due to boost control not being engaged.

If you're wiring your own connector for the main (not MS3X) plug, you can tie a few more of those pins (beyond the 5 in a row) to ground too if you like.

[nkemp]

I have attached my drawing for my Megasquirt conversion.

Thanks! .... from us future converters.

[NorthEastJBD]

Thanks!

Yes, it is the twin turbo setup. I already bought the 2 valves. I am going to mount them in the bumper so I can just run short hoses. I was also looking at reducing the waste gate operating pressure since it would be running off the valves anyway.

If you are familiar with the island twin turbo setup, the turbos were setup completely separate. Never bothered me until this conversion. I will be making a cross pipe to assure the same pressure on both sides of the engine.

Only thing left to buy right now are:
1. feedthroughs (I am going to need a smaller separate one for wires to bumper so I can disconnect bumper to remove like I do now.)
2. distributor change over to wheel/pickup. I bought another one that I already sand blasted and cleaned up but need the wheel that would fit.
3. Mounting pod for LC2 gauge

Ideas for any off these would be helpful.

[FABombjoy]

If you are familiar with the island twin turbo setup, the turbos were setup completely separate. Never bothered me until this conversion. I will be making a cross pipe to assure the same pressure on both sides of the engine.
That's probably a good idea. They very slightly are connected at the common passages for the cold start/idle tube but not by very much :)

You might also consider a switch to blow-through and add a bypass valve, and ditch the stock PCV orifice for a real PCV valve. Then you could install just about any turbo you want down the road.


3. Mounting pod for LC2 gauge
In your diagram this looks like the Perfect Tuning gauge. Do you have a link to the gauge you're using? I only ask because the Perfect Tuning gauge does have a larger than normal diameter compared to a regular gauge. Patrick C (https://www.instagram.com/patricks_delorean/) has his gauge mounted on the center console. I had mine there too but moved it last year to the original stereo location after installing a touchscreen stereo.

[NorthEastJBD]

You are right. I bought the perfect gauge from DIYAutoTune readout. I liked where it was put on this build between door & drivers console.
It didn't take away from middle.

While you mentioned it. I replaced stereo with fold out touch screen. How did you add screen & gauge or is gauge on top?

[powerline84]

Northeast bad ass little diagram you made there. I sent you a pm . I went through about 4 different wheel iterations before found one that worked perfectly and several months off frustrations. But the wheel I finally settled on worked great! Luke designed his own version but we never tested it. It may find its way into a mutual friends car.

[FABombjoy]

How did you add screen & gauge or is gauge on top?
It’s a Pioneer remote display stereo. Old radio space is now the gauge and controls for heated / circulated seats. https://uploads.tapatalk-cdn.com/20201010/57db93b3260bd91c345789f1b2e23016.jpg

[powerline84]

northeast, I emailed you the parts for the danner module and cables. Your Wheel is being made now at Send Cut Send. Should get to you no later then a couple weeks. They are usually pretty Speedy. Glad I could help like those who have helped me.

Jimmy

[powerline84]

This efi kit has been sold and is on its way to it's new owner.

I am currently doing an ecooboost / G96 swap


Check https://www.facebook.com/timelesssteell/ for updates

[NorthEastJBD]

It’s a Pioneer remote display stereo. Old radio space is now the gauge and controls for heated / circulated seats. https://uploads.tapatalk-cdn.com/20201010/57db93b3260bd91c345789f1b2e23016.jpg

Could you tell me how you set up the "Perfect Tune" gauge for the multi quadrant setting?

[FABombjoy]

The last two views "on the right" before the input/output settings screen are the quadrants. If not you may need a firmware update.

[NorthEastJBD]

The last two views "on the right" before the input/output settings screen are the quadrants. If not you may need a firmware update.

The views in the setup section of the Perfect Tune gauge using the 2 front buttons?

[FABombjoy]

Yes
https://youtu.be/W1avaQ_wYm8?t=63

[NorthEastJBD]

Yes
https://youtu.be/W1avaQ_wYm8?t=63

Awesome. Thanks. I will be trying that tonight.

[NorthEastJBD]

Does anyone have the resister value to pull up value from Banner unit?

Almost current wiring is attached.

Thanks

[powerline84]

Here you go. Part number is in the picture.

[powerline84]

Disregard that last post here are the correct resistors . You only need one. 662786627766276

[powerline84]

I hate this forums picture process...maybe this one will be easier to see 66279

1/2 watt 1k ohm resistor

[powerline84]

6628166280

Also make sure eyou check in the manual and make sure your mega squirt box is set up for the right ignition. They are not setup from diy auto tune to run this ignition as default. So make sure you have the right pots moved to the right spots.

[NorthEastJBD]

I added the 1K resister to the signal(bk) to +(bn) connection on the Banner unit. Still not showing up on RPM on Perfect Tune gauge or computer.

I will be checking square wave on output and RPM output pulse from MS tomorrow with Oscope.

Any other checks or changes would be helpful. I did not see hardware changes to MS in manual.

Thanks Jimmy for all your help. I know I am super close.

[powerline84]

I suspect your ingition pots aren't right in the mega squirt box itself. Are you saying you verified them? Or that you couldn't find out how in the manual.

[NorthEastJBD]

I will be going through it again this morning but didn't see where I needed to change anything from when I first assembled. I probably missed it.

[NorthEastJBD]

I will be going through it again this morning but didn't see where I needed to change anything from when I first assembled. I probably missed it.

I will go through & adjust R52 & R56 again.

[D001264]

Great to hear about another MS conversion! powerline84 is right on with the pullup resistor, he was very helpful in getting mine running. One thing I found with my conversion that you may want to look at, the Banner unit is very sensitive to voltage sags. My original wiring providing power from the fuse panel had more of a voltage drop than it could handle while cranking. I needed to wire the banner power and ground directly to the battery. No more problems with the the Tack in on the MS, it has been rock solid since wiring direct to the battery.

[FABombjoy]

the Banner unit is very sensitive to voltage sags.
Looks like the unit has 10v as the minimum? Might be worth tossing a 15v boost regulator on in case cranking voltage dips low.

[D001264]

Great advice! A DC to DC converter 12-15V was on my list if the the direct connection did not work. With an O-Scope I would see the cranking voltage drop to about 9.5V from the fuse panel, this was enough to shut down the Banner sensor during crank and cause the no start condition.

[D001264]

P.S. The DC to DC converter might be a better solution for future starts in the event of a partially discharged battery.

[powerline84]

Glad to see the old thread revived and I am glad to help . Been Pretty busy the last few days. One thing I learned with EFI that can't be understated is the importance of clean power signals( i.e no noise interference), and good qaulity grounds. When ever possible don't share power or grounds if you don't have too.

[powerline84]

Tom,

Glad to see your up and running !

Jimmy

[powerline84]

Also for those who asked I believe the injectors I was running cross reference to1.8 turbo beetles. Bosch units.

https://www.ebay.com/itm/264422398511

[powerline84]

Bosch part #
#0280156061
Volkswagen Beetle 1.8L