SCS: More powerful alternator?

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Feb 18, 2008 | 11:47 AM

NavyC4S

Thread Starter

Safety Car

Joined: Sep 2007

Posts: 3,902

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From: RIP Lotus

St. Jude Donor '09

SCS: More powerful alternator?

I've been having the service charging system error code for quite some time now and it may be due to the underdrive pulley underdriving the alternator. This is one of many conclusions, but seems possible because the battery charges just fine when I give the engine a 200 RPM rev and I don't get the error message when driving.

There is an overdrive pully availible for the alternator, but it seems to be half the size and I'm concerned about overdriving the alternator to the point that it fails.

Is there an aftermarket generator availible that will charge at lower RPMs?

Feb 18, 2008 | 12:18 PM

Miaugi

Le Mans Master

Joined: Dec 2002

Posts: 7,588

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From: Montreal Qc

Look in the yellow pages for a shop that rebuilds altenators, I'm sure they can do something custom for you....at a cost of course.

Feb 18, 2008 | 03:40 PM

NavyC4S

Thread Starter

Safety Car

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From: RIP Lotus

St. Jude Donor '09

there is always a cost...ugh.

Feb 19, 2008 | 11:58 AM

andreas g.

Drifting

Joined: Nov 2002

Posts: 1,651

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From: laguna niguel ca

No rebuilds, factory part only. About $550 unless you get a jobber discount, then about $285. Not cheap.

Feb 19, 2008 | 05:34 PM

NavyC4S

Thread Starter

Safety Car

Joined: Sep 2007

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From: RIP Lotus

St. Jude Donor '09

Quote:

Originally Posted by andreas g.

No rebuilds, factory part only. About $550 unless you get a jobber discount, then about $285. Not cheap.

I'm pretty sure mine works fine, it just doesnt spin fast enough at idle. I'll just go for the pulley.

Feb 19, 2008 | 06:36 PM

sea six

Burning Brakes

Joined: Oct 2006

Posts: 752

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From: Lebanon CT.

Which pulley did you use? I am thinking about changing mine! Did you install it your self?
Thanks

Feb 19, 2008 | 08:01 PM

Ragtop 99

Safety Car

Joined: Nov 2007

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From: Bethesda MD

Quote:

Originally Posted by NavyC4S

I'm pretty sure mine works fine, it just doesnt spin fast enough at idle. I'll just go for the pulley.

Why not raise your idle 50 - 100 rpm?

Feb 19, 2008 | 08:05 PM

dennis50nj

Race Director

Joined: Mar 2005

Posts: 11,549

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From: Southampton NJ

Quote:

Originally Posted by Ragtop 99

Why not raise your idle 50 - 100 rpm?

i would try that first

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Feb 20, 2008 | 04:14 PM

NavyC4S

Thread Starter

Safety Car

Joined: Sep 2007

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From: RIP Lotus

St. Jude Donor '09

I suppose I could do that to see if it actually works.

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