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  1. Upgrade Your Supra with the Powertex Group 94R Lithium Car Battery!

    So you have to remove the bracket to press the button?
  2. Toyota - Supra Sales for 2023-24

    Interest rates are high, end of story thats why people arent buying a lot of cars. People are still buying other things they don't need a big loan for. The economy is fine, the data doesn't support your feelings. Not sure where your data for "layoffs everywhere" are coming from, especially with...
  3. Power Off When?

    Why not just tap into the power wire in the mirror. I tapped into the mirror and my radar detector shuts off after 7min or so.
  4. MCS 2wayNR spring rates for autox/track days

    I am new to the supra platform. I am looking into buying some MCS 2WNR and from what I have seen on here is that people tend to run slightly stiffer fronts than rears(non divorced). i.e. 650/550 or 550/500 F/R. So I contacted a vendor and they are suggesting a 650/800 (non divorced rear). I...
  5. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Should I interpolate 1500-4k, so for example, + 1, +1, +2, +2, +3, +3 or should they all be the same number increase?
  6. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Here is the log with catted downpipe and E22. Feels really good. Virtual Dyno shows increase in power over stock downpipe, had a passenger in the car too for these 2 full pulls. https://datazap.me/u/sterrace/log-1727047232?log=0&data=1-4-11
  7. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    So I just installed a high flow catted downpipe. Which duty numbers would be good to start with? Should FF be changed as well?
  8. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Awesome, I will update the boost. At what point do I have to worry about the trims? if they stay in the 40s for how long?
  9. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    It seems to be happy now. Not sure what was up with that crazyness earlier. So along with FF at 40 I mixed in some E85.. Prob a mix of E22 or so now. The timing is much happier for sure. The trims though are hitting low 40s 3200-4500 rpm or so. AFRs seem OK...
  10. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    So this seems weird. I had to disconnect the JB4 as I had to bring the car into the dealer for them to finally activate the map navigation. So I reinstalled the JB4 and went to do drive it around and do some pulls with the latest map6. Doesn't this look to be boosting high? Is there weirdness...
  11. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Here is the latest log with the latest settings you listed. https://datazap.me/u/sterrace/map6-rev2?log=0&data=1-3-4-6-20 So I noticed that the boost level fluctuates between pulls, 1-4 psi at the same RPM, is that the JB4 doing that or is that just inherent with the supra platform?
  12. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Cool, I will update those and log again. So are the duty #s global for when I switch to another map they all use the same? Or does each map keep it's own duty #s? I noticed that the boost on this map6 is similar to map1, is that correct? I am planning on putting in some E to get to E25, would...
  13. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Adam, Here is the log after updating to MAP6 with the below numbers (also using V24 now). https://datazap.me/u/sterrace/log-1726533495?log=0&data=1-3-4-9-11-14&mark=226.
  14. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    Ok will do. I don't have to change any settings in the other areas do I?
  15. JB+

    I mean its seems to be close to MAP 1 and 2 depending on how you set it ( and feels like it to be honest). I switched to the JB4 so I can datalog and run some higher % E85 if I wanted to.
  16. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    New to the supra world. @razorlab persuaded me away from the Evo world after almost 2 decades lol. Adam, If you could take a look at these logs I would appreciate it. I did a bunch, there is a map 0, 1, 2 and 4 in this, all on same road. The first map 0 was with barely any 93 left in the tank...
  17. Sold: JB+

    Selling my JB+ . I switched to a JB4. $115 shipped within the Continental U.S.





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