3.5 pulley on stock manifolds

[nascartech]

Hi just wondering if anyone has run a 3.5 pulley on a gtp with stock manifolds and ubend delete cone filter and 104s stock tune with no knock my dad wants more piwer in his gp and i have 3.5 i dont use

[matt5112]

people have done it.

Just scan, then you'll know for sure.

[Matt Palm]

this will happen

[nascartech]

Thanks matt i have a ls1m somewhere. But its weird my gtp had knock and i had ssic and headers but that was because of an exhaust leak and vac leak

[nascartech]

Maybe ill just get a plog for his car

[coolone]

Plog is just half a header... Why not go all the way? Lol... SD's are cheap enough, just my $.02

[GTPpower]

SD's are a pain.

It will be fine with stock manifolds and a 3.5.

[blueguy]

Thanks matt i have a ls1m somewhere. But its weird my gtp had knock and i had ssic and headers but that was because of an exhaust leak and vac leak

Yeah, it knocked because it was broke.

SD's are a pain.

It will be fine with stock manifolds and a 3.5.

My car needed a 3" DP and other small crap to get away with a 3.5".

[GTPpower]

My car needed a 3" DP and other small crap to get away with a 3.5".

I can believe that. I used to run a 3.4 with 3"DP + supporting mods on my 97 back in the day. It usually didn't knock.

[blueguy]

Mine went knock free after doing springs/1.84's.

I had like 2* at the shift before that.

Also did PEM's and 180*/plugs/wires/filters/mounts at that time too.

So, could have just been crappy tune-up stuff too.

[nascartech]

Ya getting ssic to seal is a pain and my sd headers were leakibg so when my car goes back together with the new cam and complete rebuild from heads up i am gunna use some copper rtv hope that helps

[blueguy]

SSIC's suck because the cores warp easy.

Get a full size IC or nothing.

As for headers, I think I've done...six sets of SD's? Only one car had issues...and that was the blown out crappy Chinese flex.

Which, just delete that crap if you've got solid mounts.

[nascartech]

Ya im gunna run 3.2 no ic for now then 2.8 when i get ic

[blueguy]

You can't just guess on pulley size.

Just because you'll have valvetrain work, doesn't mean you can run a small pulley. The pulley size is dictated on how well the car flows and how good the tuner is.

You could run a 2.5" pulley on a stock car with no timing and a 10:1 AFR. Doesn't mean it'll be fast or reliable.

[Bio248]

if i were doing it again, i'd skip headers and just run a 3" downpipe.

[nascartech]

Cam ported heads headers double roller 130 springs ls7 lifters etc and u can,t run a 3.2

[nascartech]

And im getting it tuned by intense since my cam is a stage 3 intense cam so i figured they would know how to tune that cam well oh and 60lb injectors

[JaredR215]

Sounds just like my set up. I don't see much KR at the 1-2 shift. But occasionally 3-5* at the 2-3 shift. I just need an actual tune.

[blueguy]

That's what I'm saying...

Just because someone can run it...doesn't mean you can.

And just because you've got "X" mods doesn't mean you can run "Y" pulley...

It'd be faster on a 3.4" if you were knocking on a 3.2" anyways.

Pulley envy is the death of all these cars.

[Wotgtp]

I'm waiting for the E85 and NIC guys to come in here and rustle jimmies.