BigBadWhitey

iTrader: (3)

Hey guys, looking for a hand again!
Im running an Lt1 with no mods other than full exhaust through pace setter long tubes, 42# injectors and supporting fuel mods. I recently acquired a D1 (not D1SC) kit for my car, with what appears to be a 8.5" crank pulley (measured diamater from top of grooves. Since the D1 has a 4.44:1 step up which is higher than the D1SC, what pulley should I be using to get 5-6psi? Im at 1100ft elevation, if that makes a huge difference?

I know the internals on the car wont last, and i do fully expect them to blow up in short time even at low boost. I will have a motor being built this summer, so please avoid that being a main concern in your post. Just need a blower pulley!

Thanks guys.

hatcher1986

iTrader: (4)

U need to call Bob at Brute Speed, he can tell u what u need and sale it to u for a great price.

BigBadWhitey

iTrader: (3)

I did PM him, and he made me a suggestion, just wondering if anyone else had any input!
I will be buying it from him though once i get the size figured out!

LS1RedZ

iTrader: (19)

I'd say a 4.25 pulley. I think thats the biggest you can go.

BigBadWhitey

iTrader: (3)

Biggest i can go for what reasons?
Side note: Its running a 12 rib setup, if that matters.

LS1RedZ

iTrader: (19)

To get achieve your 5-6 psi unless the 12 rib pullies come in different sizes.

BigBadWhitey

iTrader: (3)

They come up to a 5 inch according to the brute speed website.

BigBadWhitey

iTrader: (3)

Final bump for more info before i go ahead and order, anyone else have any suggestions?