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 Post subject: camshaft advance
PostPosted: Tue Aug 12, 2008 3:18 pm 
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2 BBL ''SuperSix''

Joined: Sun May 13, 2007 9:58 am
Posts: 15
Car Model:
I just recently installed a comp 264S camshaft in my 75 Valiant. The engine runs great, but I was thinking about advancing the cam a little to help with low end torque ( I don't rev the engine much). How many teeth should I advance the camshaft sprocket?


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 Post subject:
PostPosted: Tue Aug 12, 2008 4:08 pm 
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Supercharged
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Joined: Thu Jan 27, 2005 8:32 pm
Posts: 7834
Location: Portland-ish
Car Model: Fiat 500e
You need offset bushings for the cam sprocket. Advancing a whole tooth is too much. Divide 360 by the number of teeth on the cam sprocket and you'll see how much each tooth is worth in degrees.

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Joshua


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 Post subject:
PostPosted: Fri Aug 15, 2008 9:59 pm 
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Supercharged
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Joined: Mon Jan 15, 2007 5:05 pm
Posts: 3767
Location: Black Diamond, WA
Car Model:
I went 4 degrees on mine, wished I went 6...

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Aggressive Ted

http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger


74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG


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 Post subject: How did they grind it?
PostPosted: Fri Aug 15, 2008 10:20 pm 
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Board Sponsor
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Joined: Tue Oct 29, 2002 8:27 pm
Posts: 9714
Location: Salem, OR
Car Model:
You'll have to check and see if they ground the cam with some advance in it already... most places know you're gonna go 4, so they do it automatically...comp is notorious for that... the cam in the beater valiant I had them grind it 3 degrees since the profile dictated that any more might be the 'downside' of the gains with advancing the cam...

the 252 and 264 both like about 4 and that's about it for them...

-D.Idiot


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