what should be done to support a 3.0" supercharger pulley???

oh yeah, and also, approximately how much psi does a 3.0 push out?

Lots of work... lots and lots of work.

http://www.clubgp.com/newforum/tm.asp?m=2867792&p=1&tmode=1&smode=1

that is very conservative, i dont have heads/pems/intercooler/largerTB. and im running a 3.0 with 0*kr

yea hahaha I dont think you really need all that to run a 3.0 they have you almost build your entire motor.... I think for a 3.0 3inch dp, pems, u-bend delete, intake, pcm, cams, maybe throttle body, plugs, injectors missed that wires, and some type of cooler, tranny kit... should do fine just need a good tune and know how... I think I am going to save my money and when I get enough I am taking my car to intence and possibly going to do a twin charge and I garuntee it will be more tunning then a fully built motor

"Take into account this write up will be on the more conservative side and I think everyone will agree that this aplies to 95% of GTP's."

"Can you get away with less? Possibly. Have people gotten away with less? Yes. Do you want to take the chance? Enough said."

Just a general reference tool...

By the way stock injectors are plenty for a 3".

The most important mod to run a 3" pulley is some kind of scanner to keep an eye on KR. Yes a very small percentage can get away with out some kind of intercooling wether it is a pure intercooler or water/alky injection. But a much larger percentage will need it.

What are your goals? How much can you spend? How dependable do you want your car?

These questions need to be answered prior to doing any performance mods.