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  1. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    There is a helpful image in the first post for it

  2. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Looks good to go!

  3. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    use the recommended downpipe duty bias settings in the first post at FF 35 (catless) or FF 40 (catted)

  4. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    try to log from 2500-6500 in 3rd flat out

  5. Exhaust time

    I mean I do charge people for full custom maps since they take me hours of work. But I review for free on here. Of course I am biased, but everything is in my thread already shows how to tune for a downpipe, and he can DIY.

  6. Exhaust time

    If you change your downpipe, i would recommend the JB4 since it can tune for it.

  7. Ryan’s ‘23 A91MT Burnout - Slow Build

    You can get this same power with just JB4/downpipe +e85. Under 1k USD if you buy used. 70whp gains give or take. ~$14 usd per whp

  8. Ryan’s ‘23 A91MT Burnout - Slow Build

    Thank you. Hopefully next dyno sesh is running meth and hits 500 :cool:

  9. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    great example of how an AT car should look on E30 (91). ecu_psi about 1-1.5psi below dme_bt. flat trims, perfect timing. etc. Stock dp. https://datazap.me/u/coloneladama/log-1752262783?log=1&data=1-2-3-4-9-11-14-15-25-26-27-28-29&solo=9&zoom=0-30

  10. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    yep, actually the newer firmware updates that change how ign1-6 are read is helpful in this regard. easier to tell the difference between low timing from IATs and actual corrections.

  11. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    looks good, just little duty adjustments at this point duty_15 duty_20 duty_25 duty_30 duty_35 duty_40 duty_45 duty_50 duty_55 duty_60 duty_65 duty_70 35 35 35 35 40 38 40 45 52 52 59 59

  12. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Looks pretty good actually. Turn down duty5000 and duty6000 by 2 each, and get the E content up to E25

  13. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    timing looks great to me, map is fine

  14. MHD+ for Supra and Gen 2 B58

    AFR looks pretty on target to me. What about that fuel rail pressure dips? Anyone know if that's normal? That would normally be concerning to me but I can't say for sure with this setup

  15. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Correct

  16. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    we do but its more relevant for absolute maps

  17. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    bit 1 on prevents FF from adapting (usually only on absolute maps) duty bias are always active on all maps (except map 0)

  18. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    new app goes with the new bt adapter only. if you already have a jb4 with bluetooth, no need for the new one.

  19. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    yes ecu_boost is ecu_psi and ecu_target is dme_bt. I'll update the main post when I'm more familiar with the new app. Ign1 is just timing now, ign2-6 are corrections. so where as before we just looked at a drop from the linear timing advance, now you just want ign2-6 to be close to 0 for the...

  20. 60-130 Manual

    Start with the PS2-E85 Gen 2 BEF, IAT spoof somewhere 60-100 to keep boost targets steady while you dial it in.





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