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12-02-2014
Howdy! ,
I just had a few questions about this engine. Obviously specifically in the amazing pontiac gran prix.
Here it goes.. How must boost can a stock engine take? Also if I wanted to increase boost how would I do that and what else on the engine, exhaust etc would you recommend me to "update" so I wouldn't blow the engine.
Thank yall so much!
Cheers -Alex
12-02-2014
All good questions. Start here:
http://www.grandprixforums.net/threa...00-Powered-Car!!
That should get you going. Welcome to the forum! Lot's of knowledgeable guys here.
12-02-2014
20+ psi.
But seach function is your best friend for most of your answers.
12-04-2014
ive had intake manifold pressure at 45psi on a stock motor with a new LIM gasket
12-04-2014
boost dosen't always make the most power. ignition timing advance is always there unlike boost.
12-04-2014
Welcome.
Do you have any power goals in mind?
12-04-2014
I've pressure tested most anything 3800 related to 60psi. Runor is the weakest part would be a plastic intake manifold at 100psi.
12-04-2014
I remember when we ran 75 psi.
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