Stock Exhaust vs Stage 1 Exhaust, Dyno Tested Results!

[Jonathan]

Out With The Old

Nice write-up Wolff.

Question: is there something in place plugging the middle hole (of three) where we normally see the three brass screws (plugs)?

http://store.delorean.com/p-6400-plug.aspx

It's been mentioned recently on another thread when chasing a vacuum leak/idle problem and noticed in this photo that it looks like one of yours isn't there.

[DCUK Martin]

115bhp to 133bhp is almost 16% increase that's a 7th more power! I'd say that's not bad just for changing an exhaust.

But only a 5.6% increase in peak torque, which is more "real world" especially in terms of low gear accelleration...

If you want to be depressed, my diesel Mazda pushes 300ft-lbs

[jamesrguk]

But only a 5.6% increase in peak torque, which is more "real world" especially in terms of low gear accelleration...

If you want to be depressed, my diesel Mazda pushes 300ft-lbs

Martin, there I was, trying to make people feel better with careful reworking of the information to make it sound awesome and you came along and barfed all over it.

Well I hope you're happy

Even so I don't think you can expect a huge amount more from just an exhaust change.

Happy Birthday BTW.

J

[DrJeff]

... my diesel Mazda pushes 300ft-lbs

And again the question, when is someone going to engine swap a turbo diesel into a DeLorean?

[DCUK Martin]

When someone has a reason to...? I can't think of a good one, but it'd be a 3.0 Jaguar twin turbo V6 if I did...

[vwdmc16]

Nice write-up Wolff.

Question: is there something in place plugging the middle hole (of three) where we normally see the three brass screws (plugs)?

http://store.delorean.com/p-6400-plug.aspx

It's been mentioned recently on another thread when chasing a vacuum leak/idle problem and noticed in this photo that it looks like one of yours isn't there.

Well half of it is there, i was doing a regular nut and bolt check on the car and just barely got the wrench on that bolt and the head came off, the base still seems to seal however.

[vps3922]

MSD blaster2 coil and coil resistor deleted (this mod created a 12hp gain alone on the mustang dyno years ago)

<Raise eyebrow> What is that? Do you have details on it?

Great writeup! Thanks for sharing!

[DMCMW Dave]

MSD blaster2 coil and coil resistor deleted (this mod created a 12hp gain alone on the mustang dyno years ago)

The skeptic in me always has to ask - compared to a fresh stock system, or one with nasty old plugs and wires that the MSD could punch through better?

[DCUK Martin]

I agree with Dave. In my turbo engines, I've stuck with the original setup because it supports a spark even under 15+ psi boost. That's bougicord leads, standard even fire distributor, bp7efvx plugs.

[vwdmc16]

I hear what you are saying, the plugs were copper boschs, bougicords, and bosch capgcap/rotor were less than a year old.

To be honest im skeptical too and when i get time, plan on retesting that experiment on the dyno.