MAP Sensors
Screwy question for anyone... my car was tuned with stock map. I ran 15 lbs boost without issue...and am wondering what was happening by me doing that??? More importantly, if i swap to the TTA 3 bar and make no changes otherwise...what will happen??? Sorry for the rather novice question.
Originally Posted by KissMySSo1
You could buy a FAST 3 bar map sensor from speed inc with and adaptor harness for $120
= $90 for the sensor
= $20 for the harness
= $10 for shipping
= $90 for the sensor
= $20 for the harness
= $10 for shipping
Originally Posted by Jammer
Screwy question for anyone... my car was tuned with stock map. I ran 15 lbs boost without issue...and am wondering what was happening by me doing that??? More importantly, if i swap to the TTA 3 bar and make no changes otherwise...what will happen??? Sorry for the rather novice question.
If you switch to the TTA 3 bar, and do nothing else, the computer will be recieving false readings.
I believe all MAPs (1,2 and 3 bar) output a voltage from 0.1-5 volts.
for the 1 bar 15kpa (-12.5psig) = 0.1volts and 5 volts for 105kpa (.5psig)
the 2 bar outputs 15kpa (-12.5psig) = 0.1volts and 5 volts for 210kpa (15.8psi)
so your just outputing different volts for the given pressure
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Originally Posted by Mike 01WS6
If tuning with just the stock MAP, you can run nothing but naturally aspirated.
There are thousands of boosted cars and trucks running with the stock MAP sensor. The LS1/LS6 uses the MAF sensor to detect the increase in airflow/boost. The MAP sesnor is used in helping to determine engine load. The PCM treats 0 psi of boost or 15 psi of boost the same.
Keith