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View Full Version : Plastic manifold - how much does it holds?


Andrew_BR
05-07-2008, 06:55 AM
Hi guys!

I'm going to supercharge my 95 325i and I would like to know how much pressure the Intake Manifold can take.
I was thinking of using 0,8bar to be shure, but I would really like to use 1 bar:rofl:.

Does anybody KNOWS how much it can take?:rolleyes:

ffej
05-07-2008, 07:07 AM
Hi guys!

I'm going to supercharge my 95 325i and I would like to know how much pressure the Intake Manifold can take.
I was thinking of using 0,8bar to be shure, but I would really like to use 1 bar:rofl:.

Does anybody KNOWS how much it can take?:rolleyes:


I'm pretty sure the manifold itself can handle up to and beyond 1,0bar, but the headgasket will make a lovely popping with that much pressure.

Andrew_BR
05-13-2008, 11:58 AM
"the headgasket will make a lovely popping with that much pressure"

ahhaha lol!!!

Ok, I will use 0,8 as I was thinking then.

franka
08-19-2008, 11:32 AM
One bar is one atmosphere or atm or apprx 14.7 lbs per sq inch. Your manifold will handle it but its too much boost w/o other mods to your motor.

Half a bar or 0.5 bar = 7.2 psi which is about the limit.