What map are you using? (JB4)

[Evolution]

To those running MAP 2, what kind of AFRs are you seeing under full throttle?

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[jdbadb]

Thought I’d add something to this thread.
Map3 with 3.5gal E85 in the tank = ~E30. Throttle response table set to 70. Car does not like map3 without some ethanol (weirdness/pulling power). Feels like a beast with a mix and good DA.

2021 Supra:
-4in Turboback
-JB4 Map3 with E27 in the tank
-Stock otherwise

 

[jdbadb]

Also consistently trapping almost 125mph on the street. Of course the ETs are trash since I am on stock tires and backroads in 40deg weather

 

[zrk]

Throttle response table set to 70

The what now? Are you talking about DWP, if you are talking about DWP, this isn't going to affect your times at all, it's more of a parameter to adjust the daily driving 'feel.'

Also - keep a close eye on your logs if you're running Map 3. Map 3 is an additive map that pushes 6psi over whatever the DME is requesting. It's incredibly easy, especially with a DA like that, for your DME to be requesting 16-17psi. Toss 6psi on that, and you'll go lean and max out trims. Especially if you're running E.

 

[AHP]

To those running MAP 2, what kind of AFRs are you seeing under full throttle?

14.3 - 14.5 in the lower gears (which is a mindfuk for those of us accustomed to PI tuning) and then it tends to fatten up to mid/high 12's up top once IAT's exceed 110°.

 

[jdbadb]

The what now? Are you talking about DWP, if you are talking about DWP, this isn't going to affect your times at all, it's more of a parameter to adjust the daily driving 'feel.'

Also - keep a close eye on your logs if you're running Map 3. Map 3 is an additive map that pushes 6psi over whatever the DME is requesting. It's incredibly easy, especially with a DA like that, for your DME to be requesting 16-17psi. Toss 6psi on that, and you'll go lean and max out trims. Especially if you're running E.

Not really sure why I included that number, I was tired lol I think i was going a different route with my post and changed my mind.
Thanks for the heads up. Been on E25-E30 Map3 for like 8-10k miles, no issues. Hundreds of pulls!

 

[AHP]

Also consistently trapping almost 125mph on the street. Of course the ETs are trash since I am on stock tires and backroads in 40deg weather

125 is ?? but that DA!

Any results with the same mods in positive DA?

 

[zrk]

Hundreds of pulls!

It only takes the one where you go lean.

 

[Evolution]

14.3 - 14.5 in the lower gears (which is a mindfuk for those of us accustomed to PI tuning) and then it tends to fatten up to mid/high 12's up top once IAT's exceed 110°.

Thanks for the info. Just making sure what I was seeing was right. I know I have no option to change what the ecu commands afr to be, so that sucks. Hurry up people and get these things tunable!

I tune a lot of DI turbo cars and I typically shoot for around 12.5 in boost, in any gear. But ya PI car where you are shooting for a 10.8-11.8, big difference.

 

[jdbadb]

125 is ?? but that DA!

Any results with the same mods in positive DA?

This was from last night ?? A tiny bit slower but there is some variability off the hit. The 100-130 times are essentially identical so it’s not losing any power between the DAs you see here

 

[kaj]

Bumping an old thread because I know things change and I don't want to clutter the site with redundant threads:
** 2021 with a HFC DP running 25-30% e-85. Looks like MAP4 may be the best one to use?
** when running 100% 91 oct = MAP2?

 

[romanLegion9574]

Bumping an old thread because I know things change and I don't want to clutter the site with redundant threads:
** 2021 with a HFC DP running 25-30% e-85. Looks like MAP4 may be the best one to use?
** when running 100% 91 oct = MAP2?

I really recommend talking to @Jesse DaBears for a custom map 6. It's a night and day difference compared to the presets.

 

[kaj]

I was just using presets to putt around town. I won't be using it at the track, so not too worried about extracting the most out of it. From what I gather reading here: the data logs look pretty decent right now, though I'm getting used to the AFRs these cars fun LOL.

 

[GoldenEye]

JB4 is super choppy, throttle hesitation etc…get a custom tune by @Jesse DaBears , night/day difference…

 

[AHP]

On E30-40 I ran Map 5 with good track results. Eventually got with Jesse and it drove significantly better on a custom map.

91 octane stick to stock boost, IMO. Map 2 can sometimes be a bit much for 93.

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