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10-01-2015
I bought my grand prix off a lot the previous owner did some mods from what I can tell it has a 3.4 pully headers cold air intake bigger wires and I'm Assuming a cooler stat wondering what else I half to do to run a 3.2 pully
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10-01-2015
cam and full size intercooler
10-01-2015
I hope you didn't pay too much for that thing. Looks nice but a 3.4 on a gen v even with headers is knock city.
10-01-2015
No knocking it runs good
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10-01-2015
IF (very big if ) it has no knock now, leave it as it is with the 3.4.
Unless you plan on going valvetrain or intercooler as sgt said, there is no more opportunity for a drop with just headers.
You are scanning for knock with either an aeroforce or torque right?
10-01-2015
What's that
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10-01-2015
you need to scan for knock. just because you can't hear it doesn't mean there isn't any predetonation. a 3.4 really is too small with just headersOriginally Posted by scott198283
10-01-2015
How do u do that
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10-01-2015
10-01-2015
here is a little lesson, just to get you started. Boost is the presence of restriction to airflow and results in increased manifold pressure. so by putting a smaller pulley on the supercharger, there will be more boost and more manifold pressure. if you engine does not have the ability to expel the increased amount of exhaust produced, your computer will cut the timing advance and you will have less power than if you had the correct size pulley on. if you go smaller than you should, the pressure will destroy your engine.
10-01-2015
Ok
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10-01-2015
its knocking on heavens door..... scan that thing. read up too.
10-01-2015
I'll be the first to say when that motor blows from running a 3.4 with limited mods I'll take that good of your hands
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10-03-2015
I just fell in love its a beautiful car but I agree check for knock
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10-04-2015
Ignorance is bliss... : )
Right up to the point your hear that really big CLUNK CLUNK CLUNK... Engine is dead...
Read the safely modding your GP thread here and lots will be revealed!
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