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Old 04-29-2013, 07:09 AM
Raptorus1 Raptorus1 is offline
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Quote:
Originally Posted by techinspector1 View Post
Assuming a 9cc gasket and zero piston deck height, I get 10.22:1 SCR

When you guys do this stuff, try to show us all the tech data that's available, like the gasket displacement, piston deck height displacement and some info about the cam that we can use to make sense out of the whole mess.......please........I had to hunt up the timing card......
Isky Timing Chart

I like this cam better....
Isky Timing Chart
With 1.6 rockers, the valve lift is 0.565"/0.587"

The flow numbers I found for the heads used a 4.155" intake pipe and that pysses me off a little bit. All of us know that a larger pipe will result in higher numbers, but if you're bolting the heads onto a 4.030" bore block, then the numbers are bogus. I factored their numbers by 0.95 and here are the results.....
0.200...135...95
0.300...194...136
0.400...237...166
0.500...267...184
0.600...270...194
0.700...273...202

RPM.....HP.....TQ
2000...145....380
2500...184....387
3000...235....411
3500...299....449
4000...362....475
4500...420....490
5000...469....493
5500...491....469
6000...505....442
6500...483....390

Peak volumetric efficiency 99.7% @5000 rpm's
Peak BMEP 194.1 lbs @5000 rpm's

Give up 25 hp with the shorter cam.
That cam was actually my first choice but since I am using the factory roller lifter setup my concern with exceeding .354 lobe lift was pushing the lifter below the dogbone. Am I wrong in that line of thinking? If I can get away with the bigger cam I certainly would.
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