pulley question

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Nov 16, 2007 | 01:15 PM

worldtraveler

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Melting Slicks

Joined: Jan 2004

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From: Proud dad of 2 responsible adults and 1 fallen warrior txtx

pulley question

Does installing an undrive pulley affect the electrical system at all? Insufficient charging or anything like that?

Nov 16, 2007 | 02:48 PM

Sleazy Rider

Le Mans Master

Joined: Sep 2004

Posts: 6,019

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From: Conroe Texas

a corvette tech told me that i would have charging problems with an underdrive pully on a street car. i went with the standard size fluidamper. i'm sure that there will be members say they have no problems with an underdrive pully on the street, but i wanted to stay on the safe side.

Nov 16, 2007 | 02:57 PM

road dog

Burning Brakes

Joined: Aug 2005

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From: Notorious Miami sunny south florida

I got one on mine and the car run smoother than the stock one and no problems at all use an arp bolt once you change it your not going to want to do it again

Nov 19, 2007 | 11:21 AM

bucwheat

Race Director

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From: 4th on the list of top 100 in USA Ga.

Nov 19, 2007 | 12:03 PM

flatbush862

Instructor

Joined: Dec 2005

Posts: 142

Likes: 2

From: Centerport NY

Under drive pulleys and emissions

With a 3 peice st (ie. March) on a 1990 L98 -
- Will the air pump be turning slower and subsequently will the emissions be effected? I live in NY State

Also - on the the 3 peice set - will another serpentine belt be required - other than stock length?

Nov 19, 2007 | 02:10 PM

Last C5

Safety Car

Joined: Jul 2004

Posts: 3,904

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From: Vancouver Washington

Quote:

Originally Posted by flatbush862

Your air pump is electric and if NY is plugging into the OBD reader only then you can totally remove it, have it tuned out so you don't get codes, and you're good to go. My understanding is that the air pump only activates during startup/warmup.

Nov 19, 2007 | 05:36 PM

Y2Kvert4me

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From: Gone

CI 6-7-8-9-10 Veteran

St. Jude Donor '03

I've been running a 25% underdrive pulley for the past year, no charging problems at all.

Nov 19, 2007 | 06:29 PM

BitViper

Melting Slicks

Joined: Jan 2007

Posts: 3,107

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From: Sandy Ego Ca.

Quote:

Originally Posted by Y2Kvert4me

I've been running a 25% underdrive pulley for the past year, no charging problems at all.

ditto on my Camaro....and if your do have problems...you can generallly get an OVERDRIVE pully for you altenator.

People who do have problems are teh ones that have a HUGE amp or other electrical demend going on in the car...most people dont have this problem