timing chain straight-up

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Feb 14, 2010 | 08:29 PM

mustang81

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Laughing Gas

Joined: Jan 2006

Posts: 883

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From: New-brunswick,Canada

timing chain straight-up

I just bought a timing chain with zero degree, 4 ret, 4 adv. I set the crank sprocket at zero deg. I was told the cam(xe-256h) was retard 4 degrees from the manufacturer ? Now i'm confuse where to set the crank sprocket ? 4 advance ?

Feb 14, 2010 | 10:05 PM

zaaac

Senior User

Joined: Dec 2008

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Comp Cams are ground with 4* advance.

http://www.compcams.com/v002/Instructions/Files/145.pdf

Feb 15, 2010 | 09:08 AM

hollenjoe

Posting Guru

Joined: Jul 2007

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Yep they have a 4 degree advance built on them for better torque and response, anyways set it at 0....

Feb 16, 2010 | 09:10 PM

fordeverpower

Postmaster

Joined: Jul 2003

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From: iowa

yeah, the comps come with 4 degrees advance so install it straight up. The stock cams/timing chains were retarded.

Feb 20, 2010 | 12:06 AM

mustang81

Thread Starter

Laughing Gas

Joined: Jan 2006

Posts: 883

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From: New-brunswick,Canada

Thanks, i really apreciate it. Don't need to change anything.

Feb 20, 2010 | 12:22 AM

dwrestle

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Joined: Sep 2005

Posts: 647

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From: Brumley, MO

What does it mean to set the timing straight up?

Feb 20, 2010 | 01:13 AM

mustang81

Thread Starter

Laughing Gas

Joined: Jan 2006

Posts: 883

Likes: 7

From: New-brunswick,Canada

Set the crankshaft sprocket at 0 degree. Factory crankshaft sprocket is only one place you can set and is 4 deg retard for emission thing. Aftermarket timing chain set can be adjust 4 ret, 0(straight up) or 4 adv.

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Feb 22, 2010 | 02:45 AM

mustang81

Thread Starter

Laughing Gas

Joined: Jan 2006

Posts: 883

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From: New-brunswick,Canada

Ok, i understand your point grclarck351. Look,in my first post, why i want to set up 4 adv. Where is best to set it on crank to have max hp and torque ? thanks

Feb 22, 2010 | 01:17 PM

#10

grclark351

Posting Guru

Joined: Dec 2002

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From: chicago burbs

i'd install the timing set at 0 and check the cam position with a degree wheel to verify that it's where Comp says. short of that, just install it at 0