ok. Now that the 6.2 is in the car, and made some VERY good runs with my 6.2 cam, which was designed around my 9.8-1 compression 6.0, would I benefit from having a cam spec'd for my 6.2 with 11.5 comp? Would it be worth anything or just a waste of time and money? At this point I don't expect a 3 tenth gain, cause I know that's getting hard to come by at this ET, but If it can improve a tenth or so, it might be worth doing over the winter. Speedtigger, I know you are a smart cam guy and value your input.....entertain me please.

 

Mr Curtis did your 1st cam which appears to work very well
He would know more than anyone what would be a step forward or back

 

You were 231/243 on 111+3 right?

 

Man, you got a memory. lol yes it is and the lift is 622-600.
ivo 7.5 btdc closes 43.5 abdc
evo 55.5bbdc closes 7.5.

 

I have access to this cam, not sure if it would improve or not. Opinions?

 

That is not the direction I would go in. What upper RPM limit are you imposing? You have an 8" 5500 RPM stall right?

 

236-248-112 l/s in at 109* Imo would be close
Others may say add more exh duration but im not sold it needs it
Shift it a 7400-7500 rpm I would think- with same trap rpm

 

I think that IVC is on the late side for a 11.5:1 naturally aspirated rectangle port 6.2 liter shifting at or before 7500 RPM.

 

Only 3 degrees IVC longer than his current cam I believe??
whopping 2 degrees more overlap

 

If he has a 5000+ converter and he is looking to shift at 7300-7500 RPM, I would rather see him in something like: 236/248 109+3. With lift at .629"/.604" if he is using stock rockers.

 

So I am officially conservative in my old age lol

 

I shift early I guess. I'm shifting at 68-6900. I do turn it up occasionally, but only if I'm behind.AND I do have stock rockers.

 

yes. 5500 8 inch. Only limits I set is what this thing sets for me. There really are none. I guess i feel ok with 7500. Never shifted there.

 

Then I would grind you a 236/250 109.5+3.5. With lift at .629"/.604". It would be grind# XA236/370-XA250/355-109.5+3.5.