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Thread: 8/71 blower build, cam help?
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09-13-2013 #1
8/71 blower build, cam help?
After years of dreaming, we are building a blower motor for our Pro Street 55 Bel Air. Starting with a GEN 6 454.
Looking for cam advice.
The car will be a cruiser, and we want it to have that nasty lpey / surging idle you see the nostalgia fuel cars have at the Hot Rod reunions.
I sent a request to Howards, and they came back witha pretty healty came with 243/255 duration @ .050" but with an LSA of 114.
I would think a tigher LSA would give me the idle we want more so then the wide. Am I right or wrong?
Thoughts?
I've never built a blower engine before, and have been trying to do some research, but not really finding anything discussing this.1971 Camaro 427 in waiting
1988 C1500 Daily Driver
1955 Bel Air, blown BBC street car
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09-13-2013 #2I might have found the answer.
I read that the surging idle is caused by the engine fighting boost at idle. So an overdrive set up as apposed to underdrive would give this idle, regardless of cam.
Does that sound correct?1971 Camaro 427 in waiting
1988 C1500 Daily Driver
1955 Bel Air, blown BBC street car
12-17-2013 #3Registered User- Join Date
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