SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

[Fuji808]

Oh nice! Which turbos were they? Do you know how much power over the stock turbo?

swrdply400mrelay,

check out Wazza and his build with the Ultra Flow X

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[swrdply400mrelay]

swrdply400mrelay,

check out Wazza and his build with the Ultra Flow X

He's tuned on BM3

 

[digimat2566]

Hello, I have two logs attached, those are with map1 on my 2024 A90 Supra.
No modification on headpipe or opf, fuel is RON98, gear3 from 2500 rpm to redline.
Please review it. Wondering if it's okay to run map2 or 3, or what should I test next, thank you.
https://datazap.me/u/digimat2566/2024-a90-supra-map1-test?log=0&data=1-4

 

[ColonelAdama]

Hello, I have two logs attached, those are with map1 on my 2024 A90 Supra.
No modification on headpipe or opf, fuel is RON98, gear3 from 2500 rpm to redline.
Please review it. Wondering if it's okay to run map2 or 3, or what should I test next, thank you.
https://datazap.me/u/digimat2566/2024-a90-supra-map1-test?log=0&data=1-4

Timing is starting to separate in the higher RPM, so it is best to stay on Map1 unless you get your octane up.

 

[digimat2566]

Timing is starting to separate in the higher RPM, so it is best to stay on Map1 unless you get your octane up.

Thanks for the info.
Where can I read more about this?

 

[ColonelAdama]

Thanks for the info.
Where can I read more about this?

This is called a timing correction - any step down from a cylinder ignition advance from the linear climb to redline. (ign1-6 parameters).

just means that the car detects conditions for pre-ignition. Not necessarily knock, but it is how you know you've reached the limit of the octane. some is fine, like in yours. i would imagine going to Map 2 will make it worse.

 

[digimat2566]

This is called a timing correction - any step down from a cylinder ignition advance from the linear climb to redline. (ign1-6 parameters)

Huge thanks.
I'll try other fuel sources then test again.

 

[Dven11]

Been working with @ColonelAdama with a map 6 tune for my MT. Feels pretty smooth on this last revision.

Share the log! I'd like to take a look, even if I'm still learning what I'm looking at lol

 

[ColonelAdama]

Share the log! I'd like to take a look, even if I'm still learning what I'm looking at lol

Here's @Eastwood 's latest log. Bumpy road so you can see TC kick in a little (timing dip). Or an MT quirk that needs to be worked out... We'll see on a smoother road lol.

https://datazap.me/u/coloneladama/log-1724878009?log=0&data=1-2-4-8-11-20-25-26-27-28&solo=2-4

Perfect timing otherwise at about 18-19psi on 91/E30. Notice how low WGDC has to be on MT cars. Way too high of boost and choppy throttle if any higher.

 

[Dven11]

That is interesting, 20s for WGDC. On a manual car, do you also set FF at 40? Also, since timing is looking good, would a higher octane be beneficial to get more boost or would the throttle still be too much of an issue?

 

[ColonelAdama]

That is interesting, 20s for WGDC. On a manual car, do you also set FF at 40? Also, since timing is looking good, would a higher octane be beneficial to get more boost or would the throttle still be too much of an issue?

Almost every MT I've done ended with FF between 15 and 25.

Throttle is irrelevant of boost levels and timing. Its just used to control boost targeting when your WGDC tuning isn't very good. If you tune your wastegate stuff well enough, throttle will barely close if at all under full load.

 

[Eastwood]

Here's @Eastwood 's latest log. Bumpy road so you can see TC kick in a little (timing dip). Or an MT quirk that needs to be worked out... We'll see on a smoother road lol.

https://datazap.me/u/coloneladama/log-1724878009?log=0&data=1-2-4-8-11-20-25-26-27-28&solo=2-4

Perfect timing otherwise at about 18-19psi on 91/E30. Notice how low WGDC has to be on MT cars. Way too high of boost and choppy throttle if any higher.

When I get a chance, I might go for a dyno and see what the numbers are.

 

[Cfdproductions]

anyone have any idea

Added some info for getting started tuning MT cars, and linked to the MT firmware in the original post.

is this new software that helps with the throttle closures or high trims?

 

[ColonelAdama]

anyone have any idea

is this new software that helps with the throttle closures or high trims?

Throttle closures and gets the boost down to appropriate levels.

 

[Cfdproductions]

Throttle closures and gets the boost down to appropriate levels.

Just making sure you are saying that it helps smooth out the boost to keep the throttle closures to a minimum or do you know what they changed to help with the throttle closures?

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