How much does it take to make a difference?
I'm coming up with 111 on the wheel vs. 113 on my cam card.
Will this much advancing the cam only 2 degrees make a difference or would I need more to increase bottom end torque on a heavy car?
Thanks Mike

IMO

I would use offset keys to bring it to the cams recommended setting.

Not me. I haven’t put a cam straight up in years. If it was mine it would be in around 109 but I’m strictly a drag racer and if you can get it to 60 foot that sucker will run a good number. Heavy cars need all the help they can get.

I thought all the new cams were ground with that accounted for in the grind.

Make sure and verify exactly where the intake lobes are installed, always Once you have the ILC where you want it take the time to verify where the exhaust lobes are exactly at, if the cam is ground on a 113 LSA then when you advance the intake lobes the exhaust lobes you be advance exactly the same amount, if your intake lobe center is installed at 110 ATDC then the exhaust should be in at 116 degrees before TDC
Good luck, let us know your results

Do you know what ASSUME(ASS U ME) means
Never assume any mass made after market automotive parts, especially race parts, are ever made dead nuts accurate
The timing set can be mismarked, I've seen that a lot with Cloyes timing sets for both BB and early Hemi and L.A. motors
The first custom ground solid roller cam I bought(Chrysler 392 hemi boat motors) was ground 8 degrees retarded
I installed it and use a degree wheel to check the cam timing at .020, it was off around 3 degrees so I assumed that was good enough, which of course wasn't
That bad cam did end up teaching me how to check the LSA the quick way and that helped me under stand a lot more about how camshafts work with hands on experiences

I've purchased a custom roller from Herbert that was ground 8 degrees retarded, and I had a Mopar Performance timing gear with the timing dot on the wrong side.

What is the LSA?

Lobe separation angle (in degree's)

He stated that it was 113 on the cam card and he is getting 111 when checking it with a degree wheel, hopefully he is checking it on the intake lobe and not the exhaust lobe

Actually he just said the cam card says to install the cam at 113 which I am guessing is the cam manufactors recommended installed centerine and not the LSA. On my flat tappet cam the LSA is 110 but the recommended installed centerline is 106. Ron

As the timing chain starts to wear/stretch, it will retard the cam a bit anyway.

Yes I am using the #1 INTAKE lobe to check. Intake center line recommendation is 113. Lobe separation is 115.
Last year when I installed this NEW cam I had to install it straight up to get 113. That was with a used timing chain from my previous cam.
I now have a NEW Roll master timing chain and installing it straight up I am now getting 111. I am thinking this may actually work a little better advancing it since my car is heavy(3550). Cam is a Comp 800 intake 766 exhaust roller in a 572 Indy motor.
Mike

It may or may not make any difference. Very application specific.

I don't think there is anything wrong with trying it 4 degrees advanced and seeing how it compares to the 2 degree advanced that you have been running. Are you sure you have enough valve to piston clearance to move the centerline? That is the only thing I'd worry about. If you have enough clearance to play with the centerline then go ahead and try it at a few different spots and see how the engine responds.

This^^^. If you advance it too much the intake valve will crash.

LOL "This^^^. If you advance it too much the intake valve will crash."

Have already verified plenty of clearance at max valve lift.

Not expecting much just leaving it at 2 advanced. Will not know for awhile though. Snowing here right now in Penna.
This is a good example of always checking cam timing though.
Mike

The intake valve is usually closest to the piston at around 10ATDC during the intake opening.

With the intake valve at full lift, the crank is at around 113ATDC(in your case ...... which has the piston about 3" away).

On a different train of thought...... What are the lobe numbers for that cam?

I'm trying to think of a combo like yours where I'd feel a 115lsa would be the preferred choice.......

Only thing I can think of is that they spread the lobes out because the cam has so much duration. 115 seems like a lot of spread but it is a 572 so if the 050 duration is in the 290 or 300 range that could explain it.

Gross valve lift intake 800 exhaust 766
duration@ 050 283 294
lobe separation 115.0
lobe lift .4710 intake .4510 exhaust
Mike