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I see what you are asking. It all depends on where BM3 put 100% at in the gradient tables. If they put it at say E50, then If you have E50 in the car, any map slot would give you the exact same results. In the same scenario, if you run the stock map slot and run e25, then it would give different...

If you aren't turning RE71RS's into mush on hot track days, you aren't driving fast enough. ;)

Not a weird one like this with links embedded in the copy that links to their online store. Bit thirsty.

From service manual:

It does. @suptj is confused. Multimap is ACN91, 91, 93 and stock. You can switch between all those from the steering wheel. All four of those map slots have flex fuel enabled. If you run flexfuel it flexes to whatever Ethanol you have in there, if you have a flex fuel sensor installed...

I mean, you said you wanted a GT car but you bought a ZL1 1LE track car. ? Normal ZL1 (Non 1LE) would have fit your wants wayyyy better.

All the modern lotuses have had Toyota engines for like the last twenty years. I also wouldn’t sleep on that V6 in the lotus, it’s a nice engine.

@kaj

130C!!! You have bigger issues if you are seeing 130C. Car would be in limp mode. Me thinks you aren't logging Manifold Air Temps.

You all should really be data logging when tracking if you have questions about "is the car dropping power because of high IAT's or not, and if so, when and how?"

Those aren't 2023 wheels. ;)

In my previous life when I tuned and operated a dyno I saw people chasing numbers all the time. I get the want, but you would not even feel 10whp at that level. You basically have 500whp.

I used a Harbor Freight torque wrench for 15 years, a jack for about 10 and now I am on jack #2. I obviously wouldn't use the torque wrench for engine building but my wheels never fell off.

I'm seeing two different. Baseline: 372whp/408wtq BM3 Flex with E47: 490whp/528wtq

no OTA.

Oh, for good timing and such, it will help. You mentioned cooling so I was talking about that. I had much cleaner timing with E20 on stock tune. However I am higher compression and the 2020's run like 14.3-14.6 AFR at WOT all the time. The 21+ has lower compression and the AFRs richen up much...

E85 won't do anything to make IAT's cooler as that is measured pre cylinder, and that is the big thing that reduces torque request. Airbox -> Turbo Inlet -> Charge pipe (pre-manifold temp sensor) -> Intake manifold intercooler -> post intake manifold intercooler (Post-manifold temp sensor, IAT...

I might sell my unused, still in the box set of four 19x10 rears. It can help fund my 18x11 setup

Incoming... ;)

yes stock these run close to Stoich at WOT. When you are off throttle, injectors shut off so it's full lean.