cam with advance ground in????
puts the powerband at an exceptible level, most cams with 0* would peak to high. and most off the shelf cams have a 112lsa/108ICL or 114lsa/110ICL so they have the advance already ground in and you just install straight up.
Staging Lane
Joined: Jun 2003
Posts: 56
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In general, the more advnace ground in the lower it shifts the power band down, but this is all general statements. Lower ICL's generally lead to less piston to valve clearance as well, so don't go too crazy with advance, especially on larger cams.
It's up to the person who spec's out the cam.
Alot do it to compensate for timing chain deflection.
Others have the same came specs ground off at 0, 2 or 4 degrees off.
It is the same thing as if you where to degree the cam in to the specs on the cam card.Then you can dail it in as so desired.
If you want more low end you advance, if you want top end you retard the cam.
But each degree will usually only give you roughly a 50 rpm shift at the extreme of the power band.To many factors there for a general rule of thumb though.
Any cam installed it would be smart to degree it in to insure it is installed as intended.
Here is some decent basic info;
www.wighat.com/fcr3/confusion.htm
Alot do it to compensate for timing chain deflection.
Others have the same came specs ground off at 0, 2 or 4 degrees off.
It is the same thing as if you where to degree the cam in to the specs on the cam card.Then you can dail it in as so desired.
If you want more low end you advance, if you want top end you retard the cam.
But each degree will usually only give you roughly a 50 rpm shift at the extreme of the power band.To many factors there for a general rule of thumb though.
Any cam installed it would be smart to degree it in to insure it is installed as intended.
Here is some decent basic info;
www.wighat.com/fcr3/confusion.htm
Last edited by wrencher; Feb 15, 2004 at 08:36 PM.
