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bobnjessc
Joined: 20 Aug 2010
Posts: 2
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 Posted: Fri Aug 20, 2010 8:03 pm Post subject: sbc spark plugs |
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| 13:1 cr small block 377 wanted advice on spark plugs. autolite 3924? |
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Drag Chevette
Joined: 18 Sep 2007
Posts: 458
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| Posted: Fri Aug 20, 2010 10:54 pm Post subject: |
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I prefer my carb customers to use a hotter plug....but go with the plug your builder recommends....
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http://www.marksullense85carburetors.com |
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bobnjessc
Joined: 20 Aug 2010
Posts: 2
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| Posted: Sat Aug 21, 2010 12:41 am Post subject: sbc plugs |
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| was built as a gas motor. The builder in town thinks I was stupid for converting to e85. Ran Race gas for 3 years with ngk fr5 on a 250shot. I think this is good but do not want a gernade to go off. |
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hotrod
Joined: 19 Apr 2005
Posts: 872
Location: Colorado
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| Posted: Sun Aug 22, 2010 1:53 am Post subject: |
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Use a stock replacement plug or one step hotter if the plugs show no heat on the electrodes.
I personally use a champion racing plug C59YC in my WRX but the plug is often used by Chevy engine builders. It is a J gap plug and most engines like J gap plugs in high performance applications. IN fact the shop I first bought them for ran a circle track stock car, and used these plugs in their race car.
This thread has a discussion on plugs you might find useful.
http://www.e85forum.com/about918.html
Larry |
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Eric68
Joined: 01 Nov 2007
Posts: 331
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| Posted: Mon Aug 23, 2010 6:48 am Post subject: Re: sbc spark plugs |
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| bobnjessc wrote: | | 13:1 cr small block 377 wanted advice on spark plugs. autolite 3924? |
I'd use the Autolite 3934 (race version in that heat range) or if you want an extended tip street plug use the 3923 (one heat range cooler)
_________________
E85 racer and E85 carb builder
www.horsepowerinnovations.com
E85 powered 68 Camaro street car
Best ET on motor 9.96 @ 133 MPH, 5.92 on N2O in the 1/8th |
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