Page 2 of 2 FirstFirst 12
Results 11 to 20 of 20

Thread: Looking for TPI(L98) to LS1B stock conversion TUNE

  1. #11
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    If you're having problems with scantool, post pics...

    ( Hosting-an-Image )

  2. #12
    New Member
    Join Date
    Oct 2016
    Posts
    8

    Default

    It does have vacuum hose to FPR.Stock IFR is 21.6 lbs/hr @43.5 PSI.So I just put 21.6 in all B4001 cells?Do I enter FRP any where or how do I scale IFR to FRP and where do I enter it.

  3. #13
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    Does your rail pressure measure 43.5 psi...? If yes, then yes, 21.6 lb/hr is correct in B4001, same value in all cells (no scaling needed in this case)


    There is nowhere to enter FPR pressure.


    ( you would have to do IFR scaling if say you were running those 21.6 lb/hr injectors at 58 psi, in this case you would multiply 21.6 lb/hr by sqrt(58.0/43.5) to get IFR at 58 psi )

  4. #14
    Junior Member
    Join Date
    Sep 2016
    Posts
    28

    Default

    You wrote in your first post that you got your car running..
    but how's the engine running? Smooth? Misfiring?.....? Is your only problem not being able to connect to the scantool?
    Do you want to tune it to make it run like normal, or tune it to increase performance and whatever else...?
    In case it helps and in case you didn't know; the '85 350 has a different firing order to the LS1.

  5. #15
    New Member
    Join Date
    Oct 2016
    Posts
    8

    Default

    Just looking for stock tune for the 85 TPI motor with 02 Camaro pcm if someone has already got one figured out.

  6. #16
    Lifetime Member Tinbender59's Avatar
    Join Date
    Jun 2010
    Posts
    289

    Default

    Quote Originally Posted by camaro69racer View Post
    Just looking for stock tune for the 85 TPI motor with 02 Camaro pcm if someone has already got one figured out.
    I am running an LT1 with a TPI on top, using a Vortec distributor, '96 LT1 front cover with 4X reluctor. and using a LS1B (411) ECU. although this one does need tuned. it is a 4X4 tune also. we started with a Savana tune and did some segment work. I could possibly figure out a 2wd version for you. PM me if you wish, I'm in Wichita Kansas area, if you are close

    post your current tune I'll give it a look

    this was before the TPI conversion
    http://www.gmtruckcentral.com/articles/lt1swap.html

    and a direct Vortec to TPI conversion, although he has not let me tune it yet??
    http://forum.gmtruckcentral.com/show...T-ON-THE-CHEAP
    Attached Files Attached Files
    Last edited by Tinbender59; November 14th, 2016 at 01:44 PM.

  7. #17
    New Member
    Join Date
    Oct 2016
    Posts
    8

    Default

    I'm in the middle of painting car.It seems to be running pretty good but I can't drive it till I finish paint job.I will probably need help when it hit the road.Thanks for download

  8. #18
    Member
    Join Date
    Jan 2009
    Posts
    70

    Default

    I am running a modified accel DS distributor w/ a 411 and LS1 MAF on a stock 91 Vette TPI motor. The ECM uses a Express Van OS 12212156 with a low resolution crank signal. But, the VE table and ignition tables should be close for you (do you have aluminum heads?). Depending on you intake tract, the MAF curve should be OK also. My fuel trims run about -0.8% @ idle and about -3.5% at cruise. WOT AFR runs in the high 13s. The Vette has a ZF transmission and made 263 RWHP; not bad considering GM rated the engine at 245 at the crank.
    Attached Files Attached Files

  9. #19
    Member
    Join Date
    Jan 2009
    Posts
    70

    Default

    Oops, I forgot to note I'm running 24# injectors..so pay attention!

  10. #20
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    I would feel more comfortable with WOT AFR in the low 13's.

Page 2 of 2 FirstFirst 12

Similar Threads

  1. Gen IV LY5 to LS1B, DBC conversion
    By bubba68ss in forum Gen III V8 Specific
    Replies: 4
    Last Post: February 16th, 2016, 07:47 PM
  2. Need Stock Tune for MY9.5 VE SSV UTE L98 Manual (12633016)
    By CV8IIM6 in forum E37, E38 & E67 PFI ECM's
    Replies: 4
    Last Post: August 21st, 2009, 08:15 PM
  3. Modern TPI Engine
    By S10Wildside in forum Conversions / Aftermarket Parts
    Replies: 0
    Last Post: May 26th, 2009, 02:06 PM
  4. vz ls1 to l98 conversion
    By shane in forum Gen III V8 Specific
    Replies: 1
    Last Post: November 30th, 2008, 11:41 PM
  5. L98 into LS1 Holden conversion
    By rally1 in forum Gen IV V8 Specific
    Replies: 1
    Last Post: September 10th, 2008, 01:58 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •