Thread: 04 Grand Prix GTP MODS any ideas?????

You have to let the car flow.

IE: Headers.

how can we assume he won't be able to run stock timing on a 3.4? the difference between the 3.6 and 3.4 isnt that much, really.

Originally Posted by Bio248

how can we assume he won't be able to run stock timing on a 3.4? the difference between the 3.6 and 3.4 isnt that much, really.

It is on a GenV.

If he was a GenIII I'd agree 110%...but most GenV cars need valvetrain mods, or E85, or some form of cooling to get away with a 3.4"...short stack, full size IC, Meth injection...you know...or I mean, it could be like Brandon's car...and have like 12* of timing with a 10.8:1 AFR on a 3.5"...right?

won't know until he tries and scans, though.

True.

But I doubt it.

Originally Posted by Bio248

how can we assume he won't be able to run stock timing on a 3.4? the difference between the 3.6 and 3.4 isnt that much, really.

It would be like running a 3.2 pulley on an l67 with headers and an intake, knock city.

Originally Posted by afallucco

It would be like running a 3.2 pulley on an l67 with headers and an intake, knock city.

you're really trying to convince the wrong guy.

Originally Posted by Bio248

won't know until he tries and scans, though.

I can't believe this is happening......but I totally agree with Bio here. The difference is small between the two pulleys. I say try at least.

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Originally Posted by afallucco

It would be like running a 3.2 pulley on an l67 with headers and an intake, knock city.

You obviously don't know much about those platform other than what you have read on this forum.


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I still get a little KR once in a while. Unless you're talking about a really good hand tune I don't see a 3.3 or even a 3.5 with those mods. I don't see a 3.6 and a 3.4 as close to one another but I'm just a rookie here.

the only steps worth taking are 2 tenths at a time or more. i only had 3.4, 3.2, and 3.0 pulleys.

and the reason why genV cars 'are more prone to knock' is because the timing table are more aggressive. get a real tune, which will handle the timing changes, and you should be good to go with dropping pulleys so long as you have some form of pre-cat exhaust work.