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

    I know people have used boostane before. I have heard too much can foul plugs or o2 sensors, can't really remember. I'd stock up on a bit of ethanol instead if you can get your hands on it, or even consider water meth injection.
  2. World’s first 6/4/tweet?

    I'm an audio nut, more money than I'd have liked to spent in home audio, but agreed. with the supra, I'm just fine listening to the B58, but the stock audio system is ?
  3. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Not all 93 (or premium) fuel is created equally. Here's the strongest pump gas 93 (shell) JB4 car I've been finishing up at 20-21 psi. Easily a 440whp/500wtq car. https://datazap.me/u/coloneladama/log-1749237553?log=1&data=1-2-11-25-26-27-28-29-34&zoom=52-90 This is why logging is so...
  4. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    https://datazap.me/u/coloneladama/log-1749009425?log=1&data=1-2-3-4-11-13-15-25-26-27-28-29&zoom=19-73 Good example of proper tuning on MT - my car today. Here's a useful tip if you're struggling with throttle closures- Keep dropping duty/FF where you see calc_tq exceed 48. You can see mine is...
  5. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Sounds good! Try to use V24 firmware or newer.
  6. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    update to v28 firmware or newer and make sure the BEF bit isnt checked under options (bit 6). Map 1 again
  7. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    everything looks fine to me
  8. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    What fuel are you running? Send me a PM of map 1 (FF=30) if on 93 Yes almost everyone street tunes. 3rd gear pulls are fine to avoid "straight to jail" speeding lol. 2500-6500 rpm flat out You're overdue on getting that tune fixed! We can get you a mild map for the track, though even map 1 may...
  9. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Totally your choice, there's nothing unsafe about the JB4 if you've read this thread. If you want a set and forget, go unlock. If you want to go thru some revisions to get JB4 perfect on your car, then you WILL retain your warranty. Idk where this myth comes from because I know more than a few...
  10. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Its fine at ff25 but it is begging for ethanol lol. Otherwise you can try an IAT spoof at 120 or so to try and drop base timing a bit
  11. Deleted

    Idk I'd be careful about it tbh, you can really start maxing out the HPFP 3-5k rpm as you get up on E50, so just check the logs.
  12. Auto > Manual

    You know what's even faster than a ZF shifting gears? No gears at all. Lets all go trade in for Plaids since 1/4mi is the only metric that matters ;) or would you say shifting improves the driving experience..?
  13. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    try FF at 30 on Map 1 FF 15 on Map 1 I recommend always starting map 1 for logs, and need to know the mods/fuel on the car
  14. Fuel Economy

    Yes, I average 14-16 depending on 93 or E30. Drive it like it should be driven. ? It is MT, so that doesn't help.
  15. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Looks fine to me. I personally prefer an additive map like this on E20 map6_15 map6_20 map6_25 map6_30 map6_35 map6_40 map6_45 map6_50 map6_55 map6_60 map6_65 map6_70 1 1.5 2 2.5 3.5 4 4.5 5 5.5 5.5 5 4
  16. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Looks pretty good, keep an eye on trims. I'd probably IAT spoof around 100 to keep them more consistent
  17. Why any faster ?

    You'll get used to it, just wait. ;) Really though, I tuned mine because it wasn't any faster than my FBO GTI was while stock. Really wanted something to put me back in my seat for 6x the price. Your brain recalibrates speed for whatever you are used to. I don't care about dragy times or dyno...
  18. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    try with FF at 10 duty_15 duty_20 duty_25 duty_30 duty_35 duty_40 duty_45 duty_50 duty_55 duty_60 duty_65 duty_70 60 60 20 20 20 20 20 20 30 40 40 40
  19. Bimmercode help needed comfort mode

    Press sport button twice. It cycles thru Sport+, sport individual, and comfort.





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