Beat a 05-07 GT!!!
07-30-2007, 04:42 PM
#11
I ♥ Acer
Join Date: Aug 2006
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Posts: 1,527
RE: Beat a 05-07 GT!!!
ORIGINAL: AmericanMuscle4.6GT
GM's 2 valves happen to use pushrods. pushrods ftw. otherwise, for OHC, its more advantagous to have more than 2 valves.
GM's 2 valves happen to use pushrods. pushrods ftw. otherwise, for OHC, its more advantagous to have more than 2 valves.
07-30-2007, 04:56 PM
#13
5th Gear Member
Join Date: Jan 2006
Location: Louisiana
Posts: 4,197
RE: Beat a 05-07 GT!!!
ORIGINAL: 98LS1
I know this is a hijack, but honestly, I have no idea why? I'm not sure on the specifics for why the 3v/4v heads work better.
GM's 2V heads respond great to N/A applications and F/I applications. Where, it seems that, the Ford 3v/4v heads only respond well to F/I applications and really suffer in the N/A stream of power. And really only make good power when they're coupled with a LARGE form of F/I. A typical small Vortech, or KB only makes in the neighborhood of 400-430rwhp, or eventhe stock Eaton is only making 360rwhp, granted it jumps leaps and bounds with a couple boltons, but still stretches just to see the 500rwhp mark.
Why is that?
ORIGINAL: AmericanMuscle4.6GT
GM's 2 valves happen to use pushrods. pushrods ftw. otherwise, for OHC, its more advantagous to have more than 2 valves.
GM's 2 valves happen to use pushrods. pushrods ftw. otherwise, for OHC, its more advantagous to have more than 2 valves.
GM's 2V heads respond great to N/A applications and F/I applications. Where, it seems that, the Ford 3v/4v heads only respond well to F/I applications and really suffer in the N/A stream of power. And really only make good power when they're coupled with a LARGE form of F/I. A typical small Vortech, or KB only makes in the neighborhood of 400-430rwhp, or eventhe stock Eaton is only making 360rwhp, granted it jumps leaps and bounds with a couple boltons, but still stretches just to see the 500rwhp mark.
Why is that?
And I don't know why you feel that the 3V/4V cars don't run well in NA applications. I've recently seen a bolt-on, stalled, DR, exhaust, geared 3V make an 11.97 pass........that's on stock cams. I'm not sure if thats the going average for an auto S197 with those mods.......but it sure surprised me.
07-30-2007, 05:06 PM
#14
5th Gear Member
Join Date: Mar 2006
Location: arizona
Posts: 3,893
RE: Beat a 05-07 GT!!!
ORIGINAL: 98LS1
I know this is a hijack, but honestly, I have no idea why? I'm not sure on the specifics for why the 3v/4v heads work better.
GM's 2V heads respond great to N/A applications and F/I applications. Where, it seems that, the Ford 3v/4v heads only respond well to F/I applications and really suffer in the N/A stream of power. And really only make good power when they're coupled with a LARGE form of F/I. A typical small Vortech, or KB only makes in the neighborhood of 400-430rwhp, or eventhe stock Eaton is only making 360rwhp, granted it jumps leaps and bounds with a couple boltons, but still stretches just to see the 500rwhp mark.
Why is that?
ORIGINAL: AmericanMuscle4.6GT
GM's 2 valves happen to use pushrods. pushrods ftw. otherwise, for OHC, its more advantagous to have more than 2 valves.
GM's 2 valves happen to use pushrods. pushrods ftw. otherwise, for OHC, its more advantagous to have more than 2 valves.
GM's 2V heads respond great to N/A applications and F/I applications. Where, it seems that, the Ford 3v/4v heads only respond well to F/I applications and really suffer in the N/A stream of power. And really only make good power when they're coupled with a LARGE form of F/I. A typical small Vortech, or KB only makes in the neighborhood of 400-430rwhp, or eventhe stock Eaton is only making 360rwhp, granted it jumps leaps and bounds with a couple boltons, but still stretches just to see the 500rwhp mark.
Why is that?
but at the same time ive seen just a bolt on 4v only puttin down about 290ish.
if i had to choose between a 7 liter pushrod 2v or a 4.6 dohc 4v as a starting point? id obviously choose the 7 liter.
if OHC was such a better design, top fuel cars would be using it.
07-30-2007, 05:08 PM
#15
5th Gear Member
Join Date: Mar 2006
Location: arizona
Posts: 3,893
RE: Beat a 05-07 GT!!!
ORIGINAL: cammed99gt
Dont make me bring back the bottle lol and u will have your hands full my friend
ORIGINAL: Stkjock
My 3V will take your action any time my friend!!!
My 3V will take your action any time my friend!!!
lol
07-30-2007, 06:30 PM
#16
5th Gear Member
Join Date: Mar 2006
Location:
Posts: 3,758
RE: Beat a 05-07 GT!!!
ORIGINAL: fazm
ill bring all 6 cylinders lol
ORIGINAL: cammed99gt
Dont make me bring back the bottle lol and u will have your hands full my friend
ORIGINAL: Stkjock
My 3V will take your action any time my friend!!!
My 3V will take your action any time my friend!!!
lol
07-30-2007, 07:22 PM
#17
6th Gear Member
Join Date: Oct 2003
Location: North Cackilacky
Posts: 8,635
RE: Beat a 05-07 GT!!!
ORIGINAL: ThisBlood147
And I don't know why you feel that the 3V/4V cars don't run well in NA applications. I've recently seen a bolt-on, stalled, DR, exhaust, geared 3V make an 11.97 pass........that's on stock cams. I'm not sure if thats the going average for an auto S197 with those mods.......but it sure surprised me.
And I don't know why you feel that the 3V/4V cars don't run well in NA applications. I've recently seen a bolt-on, stalled, DR, exhaust, geared 3V make an 11.97 pass........that's on stock cams. I'm not sure if thats the going average for an auto S197 with those mods.......but it sure surprised me.
I've never seen of a s197 run that, it's very impressive. But I'd imagine the car is like the bolton LS1's that go 10's with a stock motor, a gutted race car in other words.
07-30-2007, 08:19 PM
#20
5th Gear Member
Join Date: Jul 2006
Location: carlisle PA
Posts: 3,007
RE: Beat a 05-07 GT!!!
ORIGINAL: 98LS1
I know this is a hijack, but honestly, I have no idea why? I'm not sure on the specifics for why the 3v/4v heads work better.
GM's 2V heads respond great to N/A applications and F/I applications. Where, it seems that, the Ford 3v/4v heads only respond well to F/I applications and really suffer in the N/A stream of power. And really only make good power when they're coupled with a LARGE form of F/I. A typical small Vortech, or KB only makes in the neighborhood of 400-430rwhp, or eventhe stock Eaton is only making 360rwhp, granted it jumps leaps and bounds with a couple boltons, but still stretches just to see the 500rwhp mark.
Why is that?
ORIGINAL: AmericanMuscle4.6GT
GM's 2 valves happen to use pushrods. pushrods ftw. otherwise, for OHC, its more advantagous to have more than 2 valves.
GM's 2 valves happen to use pushrods. pushrods ftw. otherwise, for OHC, its more advantagous to have more than 2 valves.
GM's 2V heads respond great to N/A applications and F/I applications. Where, it seems that, the Ford 3v/4v heads only respond well to F/I applications and really suffer in the N/A stream of power. And really only make good power when they're coupled with a LARGE form of F/I. A typical small Vortech, or KB only makes in the neighborhood of 400-430rwhp, or eventhe stock Eaton is only making 360rwhp, granted it jumps leaps and bounds with a couple boltons, but still stretches just to see the 500rwhp mark.
Why is that?