I am considering the copper gasket, with Hylomar spray. Maybe I can make it work.
And I ran the numbers on dynamic compression (here is the calculator link if anybody is interested: https://www.pcengines.com.au/calculators/calculate-dynamic-compression-ratio/ )
With my setup, the stock cam (Duration 240° and 106.5° LSA, these are the measurements I got when I degreed the cam) installed with 4.5° advance, I would get a dynamic compression ratio of 8.47:1 with a 0.020" copper gasket and the head shaved to a chamber of 52cc.
It is interesting that with the stock cam the static compression ratio would only be 9.22:1, but the dynamic is quite high.
Also with that gasket the quench distance would be 0.039" and I would be under 8.5 dynamic compression ratio, like from classicinlines.com recommended (I put their chart in the picture attached below) :
I will order the gasket, since the machine shop hasn't machined the head yet, and the reduced quench is worth a try I guess!
And I ran the numbers on dynamic compression (here is the calculator link if anybody is interested: https://www.pcengines.com.au/calculators/calculate-dynamic-compression-ratio/ )
With my setup, the stock cam (Duration 240° and 106.5° LSA, these are the measurements I got when I degreed the cam) installed with 4.5° advance, I would get a dynamic compression ratio of 8.47:1 with a 0.020" copper gasket and the head shaved to a chamber of 52cc.
It is interesting that with the stock cam the static compression ratio would only be 9.22:1, but the dynamic is quite high.
Also with that gasket the quench distance would be 0.039" and I would be under 8.5 dynamic compression ratio, like from classicinlines.com recommended (I put their chart in the picture attached below) :
I will order the gasket, since the machine shop hasn't machined the head yet, and the reduced quench is worth a try I guess!
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