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12-13-2004 #1New to Pro-Touring
- Join Date
- Dec 2004
- Posts
- 19
Do heads need to flow for a supercharger?
I'm planning on building a 383 with aluminum heads (phase 1). For phase 2 I'd like to add a supercharger. I'm wondering if I need to be concerned that the heads flow the absolute best when at some point I'll be adding a blower.
My manifold is a TPIS mini-ram. I also wondering if I need the larger throttle body if I'm going to add a blower. Thanks!
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12-13-2004 #2New to Pro-Touring- Join Date
- Aug 2004
- Location
- Albany, NY
- Posts
- 44
Turbo and supercharged motors are not as sensitive to porting and camshafts as a N/A motor. There is so much positive pressure on the intake side that a head will flow much more then when flowed. This doesn't mean that working the head some more won't give you some more power!! The first thing you need to do is establish a power goal. Once that is determined you can calculate if the parts you have will get it done. Go from there!
One area to look at if you do port the heads are the mid lift #'s. Also don't stuff a cam with too much duration as it will blow to much of the boost pressure out the exhaust. Lastly keep the lift reasonable. It will provide longer life to the valvetrain!62' Chevy 2; AME 2" x 4" chassis with C5 front end, Triangulated 4 bar rear, Ford 9" Rear, 427 cu Twin Turbo LS1, Custom T56 Tranny OUT! 4L80E now going in!, BIG STUFF 3 DFI, Sheet metal intake
www.lateral-g.net/tanner
99' C5 w/ 420 cu motor, 538 RWHP/515 RWFT
02' Denali P/U with Quad Steer
12-13-2004 #3