unclebens

iTrader: (2)

I know 200kpa / 14.7psi is the rated max boost but does this cobalt 2 bar map sensor usually go a bit higher ?

Like I've heard the stock ls1 map sensor can read like +8psi even though its only suppose to go up to atmospheric pressure

95cam86roc

iTrader: (5)

You might have better luck finding your answer on cobaltss.net

LS1NOVA

iTrader: (12)

You can go higher than 14.7 but the tune will be maxed at that level meaning no more fueling at higher boost. I your ok with it being fat at lower levels and just right at say 16-17 then it will work.

--I ran 17 on the Cobalt sensor.

unclebens

iTrader: (2)

whats the next best option for map sensors that fit in the same hole in the rear of the ls1/ls6 intake mani?

I heard the ls9 3 bar map sensor is a different connector. Does it fit in the hole and is a pig tail available for the ls9?

black06g85

iTrader: (6)

its a 2.5 bar map, and 22.5 psi is the highest it will see.

ls1_chevelle

iTrader: (9)

it is a 2 bar map sensor. not 2.5. it says right on the sensor itself.

unclebens

iTrader: (2)

the cobalt has a 2 bar and a 2.5 bar sensor. the 2.5 is actually a baro sensor i think. I don't think the 2.5 is a direct fit.

anyway i'm using the 2.0 bar.

LS1NOVA

iTrader: (12)

What GM calls the map sensor on the Cobalt is the old brick style looking sensor, that is the 2.5 bar one and it has a built in intake air temp. Ive never seen anyone try one and Ive been told its not possible. Not sure why.

The Cobalt "baro" sensor is the 2 bar plug and play map sensor.

unclebens

iTrader: (2)

this guy converts the 2.5 cobalt sensor to be plug and play http://www.dpecorvettes.com/gpage4.html $125 though

LS1NOVA

iTrader: (12)

The Cobalt 2.5 map is the big rectangle sensor. DPE does not use that one. They may use the 2 bar one? Or maybe just a standard 1 bar. You can do it yourself if you search the net long enough. DPE's sensor is the only option I know of for higher boost E38/E40 ecm Vettes and GTO's. Prob why its expensive, Corvette tax.

MaxxMitchell

iTrader: (15)

I have ran ~30lbs on a cobalt sensor. I would have rather had the 3 bar in it but I made it work. The tune was good for up to 14.5lbs, then from there to 30lbs it was the same commanded fuel. The transition in boost from 14-30lbs is fast enough that you wont notice the dip in richness. This was done on E85, gas may have different results.

I now use a 3 bar map is most boost applications.