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Thread: #2203 is Back With EFI and Velocity Stacks!

  1. #1
    Ramblin' Wreck from Georgia Tech RamblinDMC's Avatar
    Join Date:  May 2015

    Location:  Farmington Hills MI

    Posts:    359

    My VIN:    2203

    Club(s):   (SEDOC) (DCUK)

    #2203 is Back With EFI and Velocity Stacks!

    Finally got #2203 back on the road after undergoing a extensive restomod this past year.

    It used to be powered by a stock K-Jet PRV and 3 speed auto. I decided to rebuild the stock engine with higher performance 3.0L heads, custom exhaust, Alpine valvetrain, EFI, distributorless sequential ignition, and Borla 3003 velocity stacks and UN-1 gearbox swap!

    I took lots of inspiration from the Alpine A310 race cars which employed triple throat Weber 3C carbs. The EFI velocity stacks are a modern take on the old school carbs.

    Still a lot more work to be done, but it's a great feeling to have it back on the road again! I forgot how much I missed driving this car. Now it performs better than ever!
    20200921_182653.jpg20200921_182700.jpg20200921_182719.jpg20200921_182726.jpg

    Here's a video too:
    https://photos.app.goo.gl/y9LiMDq4WRSYnWWb6

  2. #2
    Senior Member
    Join Date:  Feb 2019

    Posts:    115

    That looks fantastic!

    Aside from swapping to EFI, the ITBs likely have a significant bump in power throughout the powerband and I imagine throttle response is instantaneous.

  3. #3
    Motors about after dark Michael's Avatar
    Join Date:  May 2011

    Posts:    4,689

    My VIN:    Your VIN'S mom

    Very nice!

    I wonder if by fitting the engine cover(by cutting out the stack opening), you would reduce the intake charge temps?

  4. #4
    Ramblin' Wreck from Georgia Tech RamblinDMC's Avatar
    Join Date:  May 2015

    Location:  Farmington Hills MI

    Posts:    359

    My VIN:    2203

    Club(s):   (SEDOC) (DCUK)

    Yes the throttle response is wild. It is very eager to rev now.

    I do have plans on re-fitting the engine cover. The tops of the stacks just barely touch the inside surface of the engine cover. I plan on getting some slightly taller stacks such that they would stick through the engine cover once I get around to cutting holes in it. It should look really cool with just the stack opening showing through.

  5. #5
    LS Swapper Josh's Avatar
    Join Date:  Mar 2013

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    It looks like you are using microphone shields as air filters? What happens when it rains, or you drive somewhere dusty. I never understood velocity stacks on a car driven with any regularity.

    Supercharged 5.3L LS4 + Porsche 6spd
    [email protected]
    deloreanmidwest.com
    lsdelorean.com

  6. #6
    Ramblin' Wreck from Georgia Tech RamblinDMC's Avatar
    Join Date:  May 2015

    Location:  Farmington Hills MI

    Posts:    359

    My VIN:    2203

    Club(s):   (SEDOC) (DCUK)

    For now, they're temporary. Since these stacks are for a Porsche 911, I'm going to run with a 911 style filter later.

  7. #7
    '82 T3 FABombjoy's Avatar
    Join Date:  May 2011

    Location:  Lansing, MI

    Posts:    1,148

    My VIN:    10270

    Quote Originally Posted by Josh View Post
    What happens when it rains
    Free water injection, just add timing!

    Quote Originally Posted by Josh View Post
    you drive somewhere dusty
    Lost-cost cylinder hone touch-up, change oil when satisfied
    Luke S :: 10270 :: 82 Grey 5-Speed :: Single Watercooled T3 .60/.48 :: Borla Exhaust :: MSD Ignition :: MS3X Fully SFI Odd-fire EFI :: DevilsOwn Methanol Injection

  8. #8
    Senior Member
    Join Date:  Jan 2012

    Location:  Farmington Hills, MI

    Posts:    180

    My VIN:    16619

    Looks and sounds great!

    Also, I live like a quarter mile from where the video was recorded.

  9. #9
    DMC Timeless's Avatar
    Join Date:  Nov 2016

    Location:  SW FL

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    Club(s):   (DCF) (DCO) (DCUK)

    Saw your videos on YT this weekend. Nicely done and I like where you're going with the clean firewall.
    ~LXA~
    Dunmurry | Stuttgart | Leipzig | Tochigi | Fremont | Bratislava | Sindelfingen | Kansas City | Oakville | Coventry

  10. #10
    Ramblin' Wreck from Georgia Tech RamblinDMC's Avatar
    Join Date:  May 2015

    Location:  Farmington Hills MI

    Posts:    359

    My VIN:    2203

    Club(s):   (SEDOC) (DCUK)

    Thanks! Glad you liked the video. I'll be doing a more detailed one here shortly when I finish up some of the interior stuff and I redo some of my engine bay wiring and hoses. I may be on a guest on a popular YouTube channel here soon so I need to get 2203 in tip top shape!

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