Safe boost for 10.9:1?
Thread Starter
TECH Resident
iTrader: (16)
Joined: Dec 2004
Posts: 855
Likes: 1
From: Kansas City Area
Safe boost for 10.9:1? Well,
I picked up a maggie GTO kit for just a hair over 2k. And I may put it on this 408. Problem is, I've got -2cc diamonds and 72cc AFR225 heads. So even with a .060 gasket I am looking at 10.9:1 compression.
What kind of boost levels could I safely run on pump 93? 5psi? I would most definately change cams and try to tailor the cam to get a low DCR and no overlap.... any ideas on one of those?
Could this net me 600whp?
I don't know, the price was right and it's something to try. I bet it'd be torquey.
I picked up a maggie GTO kit for just a hair over 2k. And I may put it on this 408. Problem is, I've got -2cc diamonds and 72cc AFR225 heads. So even with a .060 gasket I am looking at 10.9:1 compression.
What kind of boost levels could I safely run on pump 93? 5psi? I would most definately change cams and try to tailor the cam to get a low DCR and no overlap.... any ideas on one of those?
Could this net me 600whp?
I don't know, the price was right and it's something to try. I bet it'd be torquey.
Thread Starter
TECH Resident
iTrader: (16)
Joined: Dec 2004
Posts: 855
Likes: 1
From: Kansas City Area
Originally Posted by OldBlue
I sure as hell wouldn't run much boost at all with a cr that high. Maybe 4-6 pounds with a good fuel system and a safe tune.
I think finding or having a knowledgeable builder design me a custom cam that takes all this into factor will be the key.
Originally Posted by mr2guru
Yeah that's what I was thinking 4-6psi.... It'll probably be killin' the MP112 blower to make that much boost on a 408 w/ AFR225s and a decent sized cam anyway.
I think finding or having a knowledgeable builder design me a custom cam that takes all this into factor will be the key.
I think finding or having a knowledgeable builder design me a custom cam that takes all this into factor will be the key.
depends on the cam mainly. You could get away with 8-10 lbs if the maggie will make it, which it probably will only make 4-6, on a GOOD tune and the right cam. Youd prob only hit 575 rwhp max with meth inj.
Nate
Nate
Last edited by Nate_Taufer; Mar 10, 2006 at 09:06 PM.
