Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

tuner cat( vol efficiency vs rpm vs map) w/ hotcam

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Old Nov 26, 2003 | 07:58 PM
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From: fl,jax
tuner cat( vol efficiency vs rpm vs map) w/ hotcam

did a comparison from my program in my car w/ hotcam , to a stock program, mine is mostly stock from like 85kpa at 2000 rpm to 2600 rpm 100 kpa , is this correct for a hot cam? both tables have a little bit done in the lower kpa's(like from 20 and the lower rpm's ) can anyone explain this to me ?
Old Nov 26, 2003 | 11:41 PM
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From: Pekin, IL, United States
The VE tables are only used if your MAF fails and the car goes into speed density mode. The hotcam most likely lowers the volumetric efficiency of the engine in those areas, hence the reason why it is lower. I wouldn't worry about it too much, very few people believe that the VE tables in any way effect a MAF car.
Old Nov 27, 2003 | 10:09 PM
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Originally posted by DOOM Master
The VE tables are only used if your MAF fails and the car goes into speed density mode. The hotcam most likely lowers the volumetric efficiency of the engine in those areas, hence the reason why it is lower. I wouldn't worry about it too much, very few people believe that the VE tables in any way effect a MAF car.
WHAT HE SAID

The VE Tables ARE NOT used on MAF cars UNLESS the MAF is unplugged... Then that would take you into Speed Density mode..
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