3.5" Pulley

RedGrandPrix · 08-29-2008, 07:01 PM

Hey guys. I know there has certainly been a lot said about changing the size of the M90 Eaton pulley, but you guys have had much more experience than me so I would value any input on the matter. I currently have a 99 Pontiac GP GTP. The current upgrades so far are:

AC DELCO 41-985 (iridium 1 range colder 0.055" gap)
K&N FIPK CAI
180* T-STAT
U-Bend DELETE
BRAND NEW Port and Polished high performance M90 Supercharger

I live in CA and give it the highest octane we have here (91). Do you think it is reasonable to go to a 3.5" pulley? I understand I should scan for KR no matter what.

Thanks for any and all responses.

Street Wolf · 08-29-2008, 07:14 PM

Get a better CAI than that K&N junk, and drop to a 3.4.

RedGrandPrix · 08-29-2008, 09:22 PM

I'm pretty sure K&N is the only one with a CARB exemption sticker. The emissions people here will fail a modified car outright without one the minute they pop the hood.

offroadfury6 · 08-29-2008, 10:01 PM

Quote:

Originally Posted by RedGrandPrix

Hey guys. I know there has certainly been a lot said about changing the size of the M90 Eaton pulley, but you guys have had much more experience than me so I would value any input on the matter. I currently have a 99 Pontiac GP GTP. The current upgrades so far are:

AC DELCO 41-985 (iridium 1 range colder 0.055" gap)
K&N FIPK CAI
180* T-STAT
U-Bend DELETE
BRAND NEW Port and Polished high performance M90 Supercharger

I live in CA and give it the highest octane we have here (91). Do you think it is reasonable to go to a 3.5" pulley? I understand I should scan for KR no matter what.

Thanks for any and all responses.

ur kidding? u guys dont have 93 octane???

RedGrandPrix · 08-29-2008, 10:16 PM

Haha. That would be no. I even called around. California is real weird about emissions.

offroadfury6 · 08-29-2008, 10:21 PM

so is NC but every gas station (except the arabs) carry 87, 89, and 93... I think only shell stores carry the max of 92 octane

Street Wolf · 08-29-2008, 10:23 PM

Quote:

Originally Posted by RedGrandPrix

Haha. That would be no. I even called around. California is real weird about emissions.

Move.

IndeedSS · 08-29-2008, 10:29 PM

Quote:

Originally Posted by Street Wolf

Get a better CAI than that K&N junk, and drop to a 3.4.

Piss poor advice.

blowfishRus6 · 08-29-2008, 10:32 PM

get a downpipe and a powerlog to go with that. you need to get air out just as good as you get it in

Street Wolf · 08-29-2008, 10:36 PM

Quote:

Originally Posted by IndeedSS

Piss poor advice.

Uh huh, sure.

08-29-2008, 07:01 PM	#1
RedGrandPrix SE Level Member Join Date: Aug 2008 Location: California Posts: 7 Thanks: 0 Thanked 0 Times in 0 Posts iTrader: (0)	3.5" Pulley Hey guys. I know there has certainly been a lot said about changing the size of the M90 Eaton pulley, but you guys have had much more experience than me so I would value any input on the matter. I currently have a 99 Pontiac GP GTP. The current upgrades so far are: AC DELCO 41-985 (iridium 1 range colder 0.055" gap) K&N FIPK CAI 180* T-STAT U-Bend DELETE BRAND NEW Port and Polished high performance M90 Supercharger I live in CA and give it the highest octane we have here (91). Do you think it is reasonable to go to a 3.5" pulley? I understand I should scan for KR no matter what. Thanks for any and all responses.

08-29-2008, 07:14 PM	#2
Street Wolf GrandPrix Junkie Join Date: Dec 2007 Location: Wichita Falls, Texas Posts: 3,424 Thanks: 0 Thanked 28 Times in 26 Posts iTrader: (5)	Re: 3.5" Pulley Get a better CAI than that K&N junk, and drop to a 3.4. __________________ 2.8 Pulley, Intense IC, P&P Gen V, Machined Intake, Intense PCM, 65lb/hr Injectors, N* Throttle Body, 1 3/4" Headers, 3" Exhaust, Intense Shift Kit, 3.69:1 Gears, 4000 Stall, N20

08-29-2008, 09:22 PM	#3
RedGrandPrix SE Level Member Join Date: Aug 2008 Location: California Posts: 7 Thanks: 0 Thanked 0 Times in 0 Posts iTrader: (0)	Re: 3.5" Pulley I'm pretty sure K&N is the only one with a CARB exemption sticker. The emissions people here will fail a modified car outright without one the minute they pop the hood.

08-29-2008, 10:16 PM	#5
RedGrandPrix SE Level Member Join Date: Aug 2008 Location: California Posts: 7 Thanks: 0 Thanked 0 Times in 0 Posts iTrader: (0)	Re: 3.5" Pulley Haha. That would be no. I even called around. California is real weird about emissions.

08-29-2008, 10:21 PM	#6
offroadfury6 GTX Level Member Join Date: Aug 2008 Location: North Carolina Posts: 946 Thanks: 5 Thanked 3 Times in 3 Posts iTrader: (0)	Re: 3.5" Pulley so is NC but every gas station (except the arabs) carry 87, 89, and 93... I think only shell stores carry the max of 92 octane __________________ '06 GP GT S/C...20" chrome Alloy wheels, Kicker L7 Subs, 4-piece grille, white underbody lights, dvd/nav. , tint, custom chrome, custom FWI, 104 plugs... more coming...

08-29-2008, 10:32 PM	#9
blowfishRus6 GTP Level Member Join Date: Mar 2008 Location: g.a. Posts: 1,635 Thanks: 9 Thanked 15 Times in 15 Posts iTrader: (0)	Re: 3.5" Pulley get a downpipe and a powerlog to go with that. you need to get air out just as good as you get it in __________________ white 04 comg G gtp. wizair and pacesetters personal best 14.6 91mph 2.1 60" track day in a few weeks

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3.5" Pulley

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