Anyone know when HPT is coming out with the 3 bar setup?

 

Soonish.

GM 3bar map sensor part is not very pricey.

 

GM 20th Anniversary TTA 3-bar GM Map sensor part #12223861
Dealer Cost $55.04
Dealer List $110.00

 

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

 

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.

 

Yea but..... its the same sensor! Same EXACT sensor, right down to the A/C Delco # stamped on it!

 

so what's the cost of the 3 bar setup from hpt any projected price? How much is the 2 bar setup?

 

Well im assuming you dont have the HPT higher bar setups, so with your stock MAP sensor, when you hit boost, the map cant sense it, but your MAF will and make the fueling requirements.

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

 

That makes zero sense

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