Sure is - call the cam maker of your choice with ALL the other specs of your vehicle & it's intended useage!!!This stuff makes my head hurt - isn't there an easier way to figure out a good cam, the difference between dynamic and static compression ratios and "ultimate" flow rates ???
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'69 BigBadOrange AMX 390. Former NHRA 'Hot Rod", 9.80s @ mid 130s. Hurst/Airheart front discs brakes.
Nostalgia ProStock.
'71 AMX 401 w/5-speed Richmond RR trans. 4 wheel disc. 500++ HP. Nostalgia TransAm.
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mailto: dhoelcher@Comcast.net GPS: 41.78, -86.24
I was just comparing Fuzz's cam to ours. They are actually very similar.
Ours:
Intake opening 42* BTC
Intake closing 72* ABC
Intake centerline 105* ATC
Exhaust opening 82* BBC
Exhaust closing 32* ATC
Exhaust centerline 115* BTC
294* duration on both intake and exhaust
LSA 110*
Fuzz's:
Intake opening 42* BTC
Intake closing 70* ABC
Intake centerline 104* ATC
Exhaust opening 81* BBC
Exhaust closing 37* ATC
Exhaust centerline 112* BTC
292* duration on intake
298* duration on exhaust
LSA 108*
Looks like the biggest difference is in the ramps. Our .050 duration is 218/218, Fuzz's is 246/250. Also, our lift is .488/.488, Fuzz's is .500/.510.
my cam card
best ever 11.669 @ 112.33 mph in 1/4 mile on 33 x 10.50 slicks and 4" lift / 7.358 @ 93.03 mph in the 1/8 mile
Yeah, I just realized I screwed up in my comparison above. The valve events I showed for yours are at .050. I'm working on adjusting them so it's an apples to apples comparison. Stay tuned.
Previous post is corrected now.
Next chapter in the continuing saga...
We were at the machine shop that screwed up our engine last night to see what agreement we could come to. The owner was very apolgetic and most cooperative in helping us get our engine back in shape. We presented him with a list of parts we wanted replaced that came to over $1000, and he had no problem with that. We told him if he could get the parts at a better price than us, no problem, just give us the parts. If not, give us the money and we'd get them. We agreed that we would get the exact parts specified.
He was willing to do the machine work and assembly at no cost to us also, but wouldn't pay to have another shop do the work. We decided we wanted to have the machine work done elsewhere, and agreed we would eat that cost. (Now, I just hope the new machine shop bill doesn't get too big.)
Now we're gonna get the engine to the new shop ASAP and start making some progress finally.
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