Meth and boost?
Former Vendor
Joined: Jul 2010
Posts: 4,504
Likes: 4
From: Waterloo Ontario
Former Vendor
Joined: Jul 2010
Posts: 4,504
Likes: 4
From: Waterloo Ontario
I'm getting a CR of 9.8-that's with .051 thou LS2 gasket. Why not just ditch the LS6 heads and get a CNC 317 head-you'll drop the compression and pick up power from the extra flow.
We picked up 50 rwhp by adding a CNC 317 head over a stock 241 head on a 346 without turning the boost up. It lowered the compression making it more pump gas friendly but picked up power by being more effecient.
We picked up 50 rwhp by adding a CNC 317 head over a stock 241 head on a 346 without turning the boost up. It lowered the compression making it more pump gas friendly but picked up power by being more effecient.
Thread Starter
Pro
Joined: Jun 2007
Posts: 706
Likes: 0
From: Pensacola Fl
ls9 gaskets, not sure if that makes a difference. I was thinking of putting 317s on there, but I just got it back together and don't feel like ripping the heads off again.
Last edited by PhilsZ51; Nov 27, 2010 at 01:02 PM.
Former Vendor
Joined: Jul 2010
Posts: 4,504
Likes: 4
From: Waterloo Ontario
Set up the knock tables on the sensitive side.
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jobberone
Joined: Aug 2003
Posts: 2,062
Likes: 8
From: Kailua Kona HI
I thought about doing that but I can't get it readily enough where I am. Also you have to have the injectors to do that. I'm at a 50% duty cycle with my injectors so I was ok but you need to flow a good deal more with E85. Will your injectors flow that much? It will boost your octane though. Again you don't need more octane than the 91 if you limit your boost.
