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Old 07-08-2017, 04:21 PM   #1
tom
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R32 GTR super rich afrs with Tomei ecu

Put my R32 on the dyno yesterday, put down some good numbers @19psi. Though afrs are super rich in the 10s. Will there be any long term issues running that rich under full boost. Tomei ecu.



https://m.youtube.com/watch?v=2YY1Usz_X9I
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Old 07-08-2017, 04:26 PM   #2
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Nah. My car was dyno tuned, and ran like that for years.

If you have a wideband installed on your car, the sensor might fail prematurely because they don't like overly rich mixtures.
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Old 07-10-2017, 11:28 PM   #3
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i think with that much boost it'll help keep it safe from detonation. From what my local well experienced tuner told me, a lot of those jdm ROM chipped ecus run pretty aggressive ignition timing since they're tuned for the car they came off of, unlike mailed tunes like RS enthalpy. And another friend told me they dont have much e85 (or at all) in japan so the tuners compensate with dumping more fuel when reaching for more power which is why you see a lot of soot covered bumpers on JZ cars lol. i googled "e85 japan" and didnt find much so i think it all seems legit. My tuner also told me some of those ECUs are sealed up with some plastic/rubber/silicone so you cant pull the chip out and retune it, might have been mine's tuning but not exactly sure. Car sounds great tho and best of luck with it.
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Old 07-11-2017, 06:48 AM   #4
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Quote:
Originally Posted by derass View Post

If you have a wideband installed on your car, the sensor might fail prematurely because they don't like overly rich mixtures.
If the sensor is brand new, Shouldnt matter C9 burns way cleaner than alot of fuels so it wouldnt damage the sensor even with the low AFRs.. (hence the no cloud of smoke on his pull) but if it was used before then i would 100 percent say it might just be faulty from the previous setup.
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Its not like you're putting a safc in a fucking Tesla.
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