badazz81z28

iTrader: (6)

Ok, I bought the comp cam kit, no instuctions BTW...I used : http://www.carcraft.com/techarticles...e/viewall.html

Following their instructions I tried to degree the cam 3 times,

For intake center line I got:

109 degrees
108.5 Degrees
109.5 degrees

My cam card says the ICL should be 110 deg.

Is that it? I thought I read somewhere else I need to check VE, No?

vettenuts

iTrader: (4)

I checked the intake centerline and then checked the cam position at 0.050" lift from the cam card to verify/double check. Also, make sure you lifter isn't hanging in the lifter tray or if not using the tray make sure the lifter doesn't turn, it will throw off the answer.

badazz81z28

iTrader: (6)

Yes, I did pull the tray. There are two magazine articles out there that helped me (Thank goodness!). When checking cam position, go from no lift to .050" turning clockwise? Than look at the cam card number?


Do you check more than one piston?

badazz81z28

iTrader: (6)

As confusing as this sounds, I tried the initial .050" lift seem to be way off....So I just turned the degree wheel to the applicable degree and on the wheel (Valve open) and checked the guage.

According to the cam card, Intake opens at 4 deg. I turned the engine over and upon initial valve opening at .050" I do get 4 deg. On the closing side its suppose to be 44 deg. I do get that .050" before closing. Is that correct?

badazz81z28

iTrader: (6)

What is confusing me is on the degree wheel at TDC the numbers are listed from 360 deg and backwards, but the valve is opening 4 deg @ .050" (because I can count 4 hash marks before TDC). As for the closing, thats where it gets muddy. According to the deg wheel, the intake valve is closing at 224 deg after TDC, but 44 deg in the 90deg markoff in the intake closing section. The numbers match, but my mind is confused.

vettenuts

iTrader: (4)

You should check the valve lift angle at 0.050" not at 0.004", which is very hard to measure accurately. You need to reset the wheel at the piston TDC per the first step of the process then re-check.

badazz81z28

iTrader: (6)

I got ya. The cam card states the degree wheel should be at 4 deg @ .050" which it was. I also checked the exhaust specs and they seem to be on spec aswell.

I do need to check ICL again, the numbers are bouncing around too much.

Today I got: 110.5 ICL

badazz81z28

iTrader: (6)

Dis-appointed to see so few have degree'd a cam...

I checked ICL again, I can't get consistent measurements. The crank adapter appears to have slight slop, thats probably my issue. I got 108.5 and 110.5....
Checking VEs though seem to be on the money. I also checked total lift on both lobes and again spot on.

vettenuts

iTrader: (4)

It took me a while to get a consistent ICL measurement. The lifter needs to stay in good contact with the cam and the roller straight. Also, while the degree wheel is set up, good time to check PTV using a dial indicator.