Best Cam For An LS1 Engine???

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11-04-2008, 06:39 AM

#31

AL SS590 M6

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Join Date: Jul 1998

Location: Charlotte,MI USA

Posts: 6,249

Quote:

Originally Posted by OLD 69

I was wondering with a healthy moderate to big cam for every 50 horsepower usually ignition timing needs to get turned down around 2 degree's for every 50 Horsepower added, unless this does not apply to the LS1's.If running a 150 shot that would be 6 degree's off of timing.I was wondering would this create a problem with the Idling?? I had a similar problem in 2 prior car's with backing off the timing 6 degree's. I'd probably pick something close to a F13 cam.

There's a box out there called a timing tuner that will pull timing only when the NO2 is engaged. The rest of the time the timing is normal.

11-04-2008, 01:07 PM

#32

Marc 85Z28

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Join Date: Dec 1999

Location: MD

Posts: 2,022

Quote:

Originally Posted by OLD 69

Can a nitrous system work safely with that 11.7:1 compression with 93 octane pump gas??

Yes, even with stock pistons. However it will require a small shot with a perfect tune and heavily retarded timing.

The timing issue you refer to is usually not for big cams, but for nitrous use. Maybe on some platforms you may want to pull back some timing for an aggressive cam, but thats because most of those platforms have horrible combustion chambers that need a TON of timing (low 40s in some cases) to make power. LS1s on the other hand make their power with only 26-28 degrees.

Last edited by Marc 85Z28; 11-04-2008 at 01:09 PM.