View Poll Results: Durations on Centrifugal FI 800+/- RWHP
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Cam durations on your Centrifugal 800+/- RWHP car
11-29-2009, 09:24 PM
#4
You building a race car or a street car? Which is a whole nother argument
.I've heard, that with a good free flowing exhaust, a good blower cam looks alot like a good nitrous cam.
11-29-2009, 09:54 PM
#5
I picked my solid roller for the big centri motor (434/YSi) by picking my redline (7K), application (95% street, 5% race) and my need for a reasonable idle (supposed to be a sleeper). Ended up with net numbers 239/246 on a 115, .630"I/.674"E.
I also based my choice on experience with my 383/T-trim solid roller which ran out of steam around 6300 - it would spin to 7 grand but slowly fall off in power. Net numbers on it were ~225/230 on 112, .573"I/.584"E. Very smooth idle at 700rpm and still laid down ~660rwhp.
We'll see in a month or two.
Jim
I also based my choice on experience with my 383/T-trim solid roller which ran out of steam around 6300 - it would spin to 7 grand but slowly fall off in power. Net numbers on it were ~225/230 on 112, .573"I/.584"E. Very smooth idle at 700rpm and still laid down ~660rwhp.
We'll see in a month or two.
Jim
11-29-2009, 10:30 PM
#6
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It doesn't work like that. The cam is spec'd based on the heads, intake, exhaust, and intended use/power band.
You building a race car or a street car? Which is a whole nother argument.
I've heard, that with a good free flowing exhaust, a good blower cam looks alot like a good nitrous cam.
You building a race car or a street car? Which is a whole nother argument
.I've heard, that with a good free flowing exhaust, a good blower cam looks alot like a good nitrous cam.
11-29-2009, 10:58 PM
#7
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most good custom cam request forms are a full page of information
on every aspect of the car/engine it is going in.
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11-30-2009, 05:24 AM
#8
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I totally agree on the custom cams. I had PatG spec my last one, and am already halfway through the form for my next. Like I stated, there are several new posts on this daily and this post is just to help as a reference for those people. If everyone went custom, there would be no posts. Most people want the info for free from every combo and every vendor. My intention is just to give some AWESOME RWHP proven cams from the people who use them in the real world. Please post durations, even if its not an off the shelf cam. Although, it looks like if your not going to spec your own cam then its EPP all the way!
11-30-2009, 09:31 AM
#9
One of the main things on selection of cams is going to be displacement. Other factors will play like cobrakiller pointed out, but with FI alot of the stuff such as head flows and intake are minor details cause it will still make power when your forcing the air in there lol! On my 346 its 238/256 on a 112 makes great power and sounds stock! Ok well if a race car sounds stock lol! On the 408 it was 242/248 on a 114 it was also pretty nasty sounding and made good power as well the lift on both of these cams were in the .600 range.
11-30-2009, 04:18 PM
#13
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Yea that's what I was thinking too. If anything it'll help bleed off a little pressure on mine if I decide to throw the cam and blower on the stock LS1 and help it live a little longer until I get the big one built.
