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Locations Without E85 - How do you get your Octane?

i3igpete

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Thraxbert

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Probably a dumb question. I was under the impression that these cars are purely speed-density. But your bm3 log shows a MAF sensor that clips out right at around 1,000 kg per hour when you hit 4k rpm. Is this actual sensed quantity, or just a calculated output from bm3?
Supra only has MAP. There's one pre-throttle body, and one in the manifold.
 
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KBGT

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I certainly could be wrong, but I thought there is a MAF sensor right after the air filter box? The logged MAF reading has always clipped out at 1020 units with any BM3 tuning. I do not know if it reads higher and the program limits the reported value, no clue. I have been told that the DME only uses MAF for low load conditions but I don't know if that is factual.

Heck I thought the manifold MAF reading was accurate until @razorlab pointed out it maxes out at 22.x psi. I also thought the logged LPFP value was accurate, once again wrong.
 

razorlab

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I certainly could be wrong, but I thought there is a MAF sensor right after the air filter box? The logged MAF reading has always clipped out at 1020 units with any BM3 tuning. I do not know if it reads higher and the program limits the reported value, no clue. I have been told that the DME only uses MAF for low load conditions but I don't know if that is factual.

Heck I thought the manifold MAF reading was accurate until @razorlab pointed out it maxes out at 22.x psi. I also thought the logged LPFP value was accurate, once again wrong.
That’s a temp sensor pre turbo

Sensor on the manifold is MAP. Sensor on the charge pipe is MAP. Pre/post throttle body boost logging.
 

GoldenEye

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Pump gas 92 octane, plus #6 nozzle WM, 22.7 PSI, 14 deg timing up top, couple deg of timing retard on several cylinders, 102 deg F IAT, dynojet...

561 whp 6th gear
527 whp 5th gear

IMG_0795.jpg



Log from 527 hp run:

https://www.bootmod3.net/log?id=6525c39cd10b4371e4c8e1e0
Since you went to Turbo Technology I'm assuming you're in the Tacoma area. There is a 76 Gas station in Auburn with Trick 101 race gas from the pump. I'm on S Hill, hit me up
 
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KBGT

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Thanks @razorlab for always keeping us honest... That sensor did not look like a hot wire anemometer like the maf sensors normally do. Good to know it's just a (pre turbo) temp sensor.

@GoldenEye I am not much of a city slicker, so I reside down South of Olympia, Littlerock area. I rarely head North but made an exception for dyno purposes. There is another dyno in Auburn at Drift Office but I have not tried them out. Do you track your car at Ridge motorsport park in Shelton?
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