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Intake Manifolds

G

GrandPrixGTP1

New member
So ive looked around and so are they any Ported Upper and Lower Intake Manifold sets with the metal gaskets and all?
I have a grand am 3400, and there are competition series upper and lower intake manifolds ported and polished with gaskets etc.
are there any for a 1997-2003 GTP?
all ive seen is LIM and they dont even say anything about including Gaskets..
Milzy Motorsports - American Muscle, Reborn

Sorry still a noob on here.:P not familar with all the sites for GP's.
 


for porting the blower, is there any specific size they port it to?
i have a 75mm northstar tb..
and where abouts would i get that done? machine shop?
 


Just wondering a bit off topic...why a Northstar?

What mods do you have to support a throttle body for a cammed or full size IC setup?

Nonetheless...a stock blower matted to a N* probably isn't great...open up the inlet to match the TB and open up the outlet a little...if you open up the outlet too much...it'll hurt ya...and you'll lose boost.
 
i plan on doin a cam and headers. possibly short stack intercooler down the road.

...so port it to 75mm?

and the tb came on the car when i bought it.
 


I'll put $5 on that or it being a canned ZZP pcm that needs to be canned..lol

Overall though, an LIM is very open. The size of the ports in the heads would become smaller than the LIM and be a flow restriction if the LIM was gasket matched without the heads being done.
 
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