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Thread: VIN1049 - LS4 swap

  1. #51
    Junior Member
    Join Date:  Oct 2015

    Location:  Dallas, Texas

    Posts:    1

    My VIN:    01055

    HP and Torque

    Quote Originally Posted by opethmike View Post
    Installed the uprated input shaft coupler tonight.

    Attachment 54590

    Attachment 54591

    How much HP and torque should you be able to have with this?

  2. #52
    Senior Member Josh's Avatar
    Join Date:  Mar 2013

    Location:  SK, Canada

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    My VIN:    11408

    Club(s):   (TXDMC)

    Quote Originally Posted by shoeatic View Post
    How much HP and torque should you be able to have with this?
    Torque is what breaks things. The highest powered car to have this transmission setup (coupler with otherwise stock transaxle) installed in is 375 ft-lbs (at the wheels)
    http://570sx.blogspot.ca/2010/11/2jz...-delorean.html

    Nick also had just the coupler installed in his transmission for a short time at 418 ft-lbs but later upgraded to a one piece input shaft, which does away with the coupler entirely.
    http://www.ls1delorean.com/2015/02/d...inly-been.html

    There are some considerations when using the stock transmission in any capacity, I have found:
    -with the coupler, I would not push more than 300-350 ft-lbs confidently
    -The transmission will be short lived if you do burnouts and drag-racing starts
    -The 4-5 shift is critical to nail consistently. If you do a poor shift between these gears under power it can easily end catastrophically. This applies to all shifts, but especially the 4-5 shift due to how the transmission is designed.
    -Applying full power in overdriven gears (5th gear) can end poorly.
    -The torque curve of a v8 is much different than a turbocharged v6. Forced induction on a v6 is generally more kind to the transmission as it builds as rpms increase. With a pushrod v8 around 80% of the torque is present at 2000-3000rpm.

    With this being said I put on at least 20,000 trouble free miles on my v8 delorean with 348 ft-lbs (at the wheels). This included long road trips, autocross events, and driving like an angry teenager.

    Hopefully this is useful information!

    With this being said, I

  3. #53
    Not a DeLorean Guru
    Join Date:  May 2011

    Location:  Rochester, NY

    Posts:    2,135

    My VIN:    01049

    Quote Originally Posted by Josh View Post
    T

    With this being said, I
    ...wut
    -Mike
    1981 DeLorean, Carb LS4 swap completed
    1999 Corvette, cam/headers/intake manifold, 400 rwhp
    2005 Elise, stock
    2016 Chevy Cruze

  4. #54
    Senior Member Josh's Avatar
    Join Date:  Mar 2013

    Location:  SK, Canada

    Posts:    1,775

    My VIN:    11408

    Club(s):   (TXDMC)

    looks like i forgot to backspace a previous thought.

  5. #55
    Not a DeLorean Guru
    Join Date:  May 2011

    Location:  Rochester, NY

    Posts:    2,135

    My VIN:    01049

    Quote Originally Posted by Josh View Post
    looks like i forgot to backspace a previous thought.
    Have you considered LS swapping your thoughts?
    -Mike
    1981 DeLorean, Carb LS4 swap completed
    1999 Corvette, cam/headers/intake manifold, 400 rwhp
    2005 Elise, stock
    2016 Chevy Cruze

  6. #56
    Not a DeLorean Guru
    Join Date:  May 2011

    Location:  Rochester, NY

    Posts:    2,135

    My VIN:    01049

    Today I rebuilt the axles with Empi boots and some spacers. No pictures because I didn't feel like taking any.
    -Mike
    1981 DeLorean, Carb LS4 swap completed
    1999 Corvette, cam/headers/intake manifold, 400 rwhp
    2005 Elise, stock
    2016 Chevy Cruze

  7. #57
    Not a DeLorean Guru
    Join Date:  May 2011

    Location:  Rochester, NY

    Posts:    2,135

    My VIN:    01049

    Finally installed the axles today. This took a bit more doing than I expected. I ran into the following issues:

    1. The flange plates necessitated by the larger throat Empi boots have holes sized for English bolts, not metric, so they are a hair too small for the M10 bolts needed by the car. I had to drill out these holes with a 10 mm drill bit.

    2. The stock bolts have hex heads, which are too large to fit as they hit the flanges. I had to order cap head bolts.

    3. I have to use very thin stainless steel clamps to hold the boots on, as even the cap head bolt heads come VERY close to the flange throat.

    I also slipped some nice lava fiber socks over the plug wires.

    axle.jpg
    plug boot socks.jpg
    -Mike
    1981 DeLorean, Carb LS4 swap completed
    1999 Corvette, cam/headers/intake manifold, 400 rwhp
    2005 Elise, stock
    2016 Chevy Cruze

  8. #58
    Not a DeLorean Guru
    Join Date:  May 2011

    Location:  Rochester, NY

    Posts:    2,135

    My VIN:    01049

    Plumbed the water pump today

    SDC11049.jpg
    -Mike
    1981 DeLorean, Carb LS4 swap completed
    1999 Corvette, cam/headers/intake manifold, 400 rwhp
    2005 Elise, stock
    2016 Chevy Cruze

  9. #59
    One of those purists you keep hearing about. sdg3205's Avatar
    Join Date:  May 2011

    Location:  Vancouver, BC

    Posts:    3,362

    My VIN:    thirty two 'o five

    Club(s):   (PNDC)

    swanky!
    Dave

    Here, somewhere.


  10. #60
    Not a DeLorean Guru
    Join Date:  May 2011

    Location:  Rochester, NY

    Posts:    2,135

    My VIN:    01049

    Plumbed the fuel system today

    SDC11057.jpgSDC11058.jpgSDC11059.jpgSDC11060.jpg
    -Mike
    1981 DeLorean, Carb LS4 swap completed
    1999 Corvette, cam/headers/intake manifold, 400 rwhp
    2005 Elise, stock
    2016 Chevy Cruze

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