cobravenom39 said:
Thinking about next mod---Cams or a KB 2.4? I don't know. Let me know what you guys think about it. Hank and Dan, I will expect your opinions first.
Andy,
I'm going to have to disagree with Hank and say the blower. I think by far the bigger bang for the buck is the blower. I figure if I'm going to have the motor torn apart enough to change the cams, then I'm going to also have better pistons installed and possibly get it stroked as well.
I've been kicking around a Whipple for some time and will probably go that route over the KB. I spoke to Whipple on the phone two weeks ago at length. No oil issues, 2.3 in size which should accomadate any boost levels you could consider running, especially with the stock block. I believe the only advantage of the 2.4 KB over the 2.2 KB is to run extremely high boost levels. Not required for your needs, but if its only a few more bucks what the hell, you'll be ready for anything in the future. And Hank is right that the 2.4 KB is on the back burner right now.
A conservatively tuned KB or Whipple blower at 15psi (which is basically where we're at now with a 2.76 pulley) is an easy 525 rwhp car. 600+ rwhp is a pulley and a more aggressive tune away. you'll never get anywhere close to that with cams, especially since you don't even have a ported blower (I don't think
). I agree with Hank on maximizing efficiency as the route to go, but that's what I believe I'd be doing with a Whipple. Cooler, more efficient design and more consistent boost levels are what get you the HP. I'd be running about 1 more psi (15) than I'm seeing now with the 2.76. People have picked up 75+ hp over an Eaton at the same psi, now that's efficiency.
I suppose (knowing you), there'd be an immediate temptation to throw on a 17 or 19 pound pulley,
which might lead to reliability issues.
That's my $0.02.
P.S. - If you ever decide to go the Whipple route, let me know. Perhaps they'll give us a deal on two (or more if there's anybody else on the fence about a Whipple).