Power loss at track

[NitroYellowMKV]

The issue is Bm3, I had it with mine after going e30 and getting to redline, some sort of tranny protection and limp mode, go to ecutek.

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[pal]

The fuel starvation issue that OP experienced at half tank or below could be similar to what many BMW F series cars experience at low fuel levels. Its a pickup problem under heavy load aka track conditions and g-forces. Dinan makes a update for the stock in-tank fuel pump and even sell an updated pump if you didn't want to modify the stocker. Maybe the problem is similar with the Supra?

https://www.dinancars.com/products/engine-hardware/fueling/parts/R420-0001

 

[Rocksandblues]

The fuel starvation issue that OP experienced at half tank or below could be similar to what many BMW F series cars experience at low fuel levels. Its a pickup problem under heavy load aka track conditions and g-forces. Dinan makes a update for the stock in-tank fuel pump and even sell an updated pump if you didn't want to modify the stocker. Maybe the problem is similar with the Supra?

https://www.dinancars.com/products/engine-hardware/fueling/parts/R420-0001

It is an issue with high speed right hand sweepers under a 1/2 tank

 

[ApexMissingApe]

Same here, less than half a tank and would lose power in the high-g sections of the track. I thought I broke my car at first.

 

[pal]

Sounds like the Supra has a saddle tank and a similar pickup problem as all the BMW F cars. May be worth diving into the Dinan solution to see if it will work with the Supra in-tank pump.

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