06-17-2011, 03:13 PM
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#11 (permalink)
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A True Z Fanatic
Join Date: Jun 2009
Location: californee way
Posts: 5,380
Drives: 370, Leaf
Rep Power: 31
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ummm..the rev limiter on the m5 is to protect the engine due to the lack of lubrication from thick oil when it is cold and oil breaking down when it is too hot. thats not a good example of how a car running 240f will make less hp than a car running 200f under the same exact condition. ecu doesnt pull timing or trim fuel directly based on the oil temperature, you can say how it might change the cvtc's function or how it can increase water temp and consequently it might lead to timing being pulled due to higher water temp or different afm reading. i have my own set of data from my car, i still dont see any power drop from the first lap to the last lap. plug a datalogger in your car and see, you will be amazed the difference is not big.
Quote:
Originally Posted by phunk
Look guys, I've been in the peformance industry ten years. I know that oil temp does not directly effect horsepower measureably. The horsepower loss from oil temp in the 370 is a function of the ecu. Over the years there are plenty of cars that use oil temp readings to limit power outside of set limits. One example is my business partners m5 that lowers the revlimiter until the oil temp is warm enough or when too hot.
I don't really need you to believe me... But for you to argue it, you are using your own assumptions to debate proven facts that have been tested. I called uprev again yesterday about some stuff with my car and again verified with Rich there. Aside from him, I personally speak to most reputable VQ tuners on a regular basis for work, and have touched on the topic several times.
If you don't want to believe me, simply pick up your phone and call one of a dozen guys that know better.
If the 10-15 HP you're losing isnt worth a phone call to verify and small investment in better cooling, that's fine... If you don't want help from people who know, suit yourself.
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