81 initial timing

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Apr 9, 2009 | 05:16 PM

vette 81

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Heel & Toe

Joined: Feb 2009

Posts: 22

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81 initial timing

Hey there, I have an 81 with computerized timing. I want to set initial timing and forgot what and where i have to disconnect to correctly time it. As always thanks for any help. I can't believe i forgot this!!!!!!!

Apr 9, 2009 | 09:48 PM

SIXFOOTER

Le Mans Master

Joined: Jan 2006

Posts: 9,192

Likes: 27

From: Boca Raton Florida

Disconnect the computer cable on the distributor and set the timing at 12* before. The book says 8* but 12 will make it happier.

Apr 10, 2009 | 07:22 AM

FB007

Burning Brakes

Joined: Dec 2007

Posts: 952

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Quote:

Originally Posted by SIXFOOTER

Disconnect the computer cable on the distributor and set the timing at 12* before. The book says 8* but 12 will make it happier.

For the record, I believe the "book" says 6*.

Apr 10, 2009 | 10:49 AM

CA-Legal-Vette

Race Director

Joined: Jul 2004

Posts: 12,676

Likes: 329

From: Scottsdale Arizona

I agree with both. Check the emissions sticker above the brake booster for the stock setting if that's what you want to do. A little more advance will make it run better but will cost you some points in emissions (and a smog check fail if they look). If you add too much advance, you'll get detonation (pinging) on acceleration.

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