How much PSI for my car?

[gr33n]

I am going to buy a MBC and I was thinking how much PSI it would be best for my car.
this is a 1G eclipse
I have a Hacked MAS
Open Airbox
K&N filter
"2.5 exhaust system from downpipe to catback

Stock Turbine
Stock IC
Stock BOV

 

[niterydr]

Do a rewire for your fuel pump and run 14-16PSI. 18psi, maby, it's kinda on the edge of a stock fuel system, but the 14b starts to make a massive amount of heat after that. So in other words, anything below 18 PSI and keep it below 16psi untill you rewire the fuel pump.

 

[Enigma_Man]

I've heard a lot of people say that 15 psi is the max for a stock fuel system (not even a rewire). I ran 15 psi for a while, without problem, but I also drive my car like a granny usually (I drive like a wuss right after I fix it, which is always). I wouldn't go above that, but as always, it may be different on your car.

-Jesse

 

[Kevin Jewer]

I found that the 450 injectors were all out of fuel at 16 psi on a cool day (50-60) and thats with a walbro 190. I would go higher. But then again my car flows a lot of air at low boost for some reason. Some people can run a little more boost. You really do have to log it and see what the limits are. Until stay at 15 to be safe, assuming you have checked and have no boost leaks. (see vfaq)