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Well, I am no where experienced as Nick or some of you guys (No pun intended) but my own perverted logic :eek: tell me this;

If you build a stock HA motor, and plan on stock boost levels on straight 93, you want the stock HG.
If you change the VE, through better flowing heads, intake, TB, Turbo etc, you can get away with a bigger cam, to get the same or higher BMEP
If you have a stock set-up, you can get higher BMEP through boost or compression, provided, you can get away with it through octane.

In my mind, if you raise the CR at a given boost level, on straight 93 only;
- On a IC'd car, you can add a bigger intercooler to reduce KR tendency, and that "may" work. (Or reduce timing, etc)
- On a HA, (Which we all know is much more sensitive to KR), there is not much you can do, if you run straight 93.
I am making some very gross ass-u-m-ptions here . . . . . .

One other thing we need to remember is the dynamic CR.
In general terms, the folks that run the larger cams have high CR's combined with sufficient octane to gain the BMEP's at the lower range.

Bottom line is:
Many of these decision come down to the purpose, the philosophy of the builder, and the calcs.
Don't focus on static CR only. :wink:
 
Wouldn't it be considered "underkill". Why not just buy the correct thickness gasket for your hot air car? Why would you want to lower your compression ratio with the thicker gasket that Jason sells? As I posted above, you can still get the thinner ones from Nick Micale at ArizonaGN.

your missing the point.

we understand that Nick has the gaskets, but there in limited supply. What do we do when there gone? do you have any suggestions?

A.j.
 
I just got my heads back from John at advanced engine rebuilders in wheeling IL he did a great job. I had him take .030 off to compensate for the felpro 1000 thickness.
 
your missing the point.

we understand that Nick has the gaskets, but there in limited supply. What do we do when there gone? do you have any suggestions?

A.j.

Like I posted in this other thread http://www.turbobuick.com/forums/general-turbo-buick-tech/297000-cometics-head-gasket-question.html, I don't see why two Cometic end shims couldn't be stacked to make a 0.020" thick gasket. Of course when I called the Cometic tech line they told me they don't recommend that, but didn't have a good reason why not to. Since I hope to never have to change my head gaskets again;), I may never get a chance to try it. Maybe one of the heavy hitters who change gaskets fairly often will be willing to step up to the plate and try.
 
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