It doesn't hurt to have a second set of eyes going over things. I have comp cams stage 3. I'll post pics of the cam cards below so you can see the specs on them. They recommend degreeing them with an intake center line of 114 degrees and exhaust center line of 118 which gives me a lobe separate angle of 116 degrees.
I've received so many varying opinions on where I should actually degree these cams vs what Comp says it gets a little over whelming and in the end I decided to just follow comps recommendations.
Relevant parts of the motor to this - flat top pistons with .050" intake reliefs and no exhaust reliefs. I should be around 10.5 ~ 10.7 compression ratio. Ported heads, 1 7/8 long tubes and still the same 2.9 whipple crusher that was formally at 27.5 PSI with a 3" upper and stock lower.
I have two goals with the setup. Wicked sounding idle and balls out WOT performance. I'm not overly concerned about low and mid range power as the car already produced so much torque there traction was an issue. So I'm concentrating on WOT upper RPM power (like 3500 ~ 4k plus).
I started on the passenger's side and had to advance the exhaust cam 2 degrees to get 117.5 degrees. Intake came in at 113.75 degrees. About as spot on as I can get to the cam cards specs. Piston to valve clearance at 5 degrees after TDC is 0.048" which I'm told by some is more than plenty and others seem skeptical and say I should have more.
So before I go further and degree the other side of the engine to match I'm looking for feedback and see if we can bounce some thoughts and ideas around. Now is the time to change stuff up if need be
Thanks guys
Malcolm
Intake card
Exhaust card
I've received so many varying opinions on where I should actually degree these cams vs what Comp says it gets a little over whelming and in the end I decided to just follow comps recommendations.
Relevant parts of the motor to this - flat top pistons with .050" intake reliefs and no exhaust reliefs. I should be around 10.5 ~ 10.7 compression ratio. Ported heads, 1 7/8 long tubes and still the same 2.9 whipple crusher that was formally at 27.5 PSI with a 3" upper and stock lower.
I have two goals with the setup. Wicked sounding idle and balls out WOT performance. I'm not overly concerned about low and mid range power as the car already produced so much torque there traction was an issue. So I'm concentrating on WOT upper RPM power (like 3500 ~ 4k plus).
I started on the passenger's side and had to advance the exhaust cam 2 degrees to get 117.5 degrees. Intake came in at 113.75 degrees. About as spot on as I can get to the cam cards specs. Piston to valve clearance at 5 degrees after TDC is 0.048" which I'm told by some is more than plenty and others seem skeptical and say I should have more.
So before I go further and degree the other side of the engine to match I'm looking for feedback and see if we can bounce some thoughts and ideas around. Now is the time to change stuff up if need be
Thanks guys
Malcolm
Intake card
Exhaust card