After speaking with a few fellow F-body buddys, I have a question about my engine. I had a 383 built for boost. I am running a D1SC and shooting for 15lbs of boost. My engine builder uses a well known shop for heads/cam set-up and they went with a 22X/23X on a 112. Most people are saying that this is to tight of a LSA. What do you guys think?

 

i have a 113 on my setup and works just fine.

 

Sounds too tight to me as well...me and dad just put together a 8:1 482 stroker BBC for our Checkmate boat to use w/ a Weind 177 blower and the cam we're using is on a 114.

LSA = valve overlap
overlap = blowing boost out the exhaust

If your engine builder trusts who he got the heads/cam from then it may be alright because running alot of boost like that having a little overlap will help keep the cylinders clear of exhaust gases.

If it doesnt have the power it should,you know a good place to start bitching at!

 

Keep the 112LSA it will work great with your setup. Lobe seperation correlates with duration as far as overlap goes. Some overlap is a good thing with a centri blower car. The specs on my cam is a 224/230 on a 112.

 

I like T/AKid's cam better, but I'd keep it. Not even worth the effort to swap out and probably wouldn't gain anything anyway.

 

My cam seems to be just fine, but I'm not running anywhere near that amount of boost.

-Pete-