just wondering what rpm i should be at full boost? also i have a stupid kpa boost guage so what "kpa" should i be reaching? is it possible to switch the guage for a standard american one? im in so i was just wondering.
thanks

 

What kind of tune do you have? Stock? GMS1? Trifecta/HPT? 103 kPa = 15 psi (usual stock boost), 137 kPa = 20 psi (usual GMS1 boost).

 

im stock, i seem to only be hitting between 40 and 50 kpa... whether i floor it or not.

 

There could be a multitude of problems causing that.

1.Boost leak
2. Open/bad Bypass Valve
3. PCM limiting it, i had that problem boosting to only 7 psi and the only fix was to unplug my battery and then let it sit for 10 mins, then plugging it back in.

 

well i bought the car a week ago so im just going to head to the dealer and have them look at it. its 10 degrees Celsius, i hear that the car will only boost to what it needs to make 260hp, could this be why its only getting to 50kpa?

 

These are plug and play so find an LNF boost guage (30psi) and just unplug your factory and plug in your replacement factory

 

alright thanks, do i have to pull the pillar off to get it out or do they just pop in and out?

 

you have to pull the pillar.

 

nope... maybe if it was -40... then yes....

 

ha, thats why i thought, thanks for the info guys.

 

Hmmm.... Langley wait a second. Did you buy your car from Duek? Is it bluee 2009 ss?

46k kms?

 

i bought from dueck blue but it has 22000k

 

I would say thats not right for what you should be boosting. No CELs?

 

it got up to 80 today, but its raining hard and my car gets litte to not traction when its wet out, so maybe it worked itself out.

 

are you boosting with a cold block? my car when cold wont boost past 7psi. but once warm its 15psi. but now i got GMS1.

 

Im having the same problem, its because im over boosting without a tune and its going to 20 psi and if it stays there for about 10 seconds, the ecu cuts the boost down to 4-7 and wont go past that. its an over boosting code. wont set a CEL but turning your car off and back on might fix it, if you have a code reader check it

 

i never drive hard while my engine is cold. ill look into the code. thanks.