New cobra 683 RWHP?

[Fourcam330]

:shrug:

ok was typing a little fast....quit getting your panties in a bunch....

Aside from the fact that you're late to the party: http://www.svtperformance.com/forums/showthread.php?t=248859&page=1
It's also my fault you're dyslexic? :shrug:

 

[Fourcam330]

That does make more sense, but there is still much that we will have to wait on. Like drivability at that level of power, and will the internals hold up to it. I hope they do. And exactly what all was envolved with it making that much power.

-Jeff

Drivability with a pos. displacement blower, stock cams, and a 5.4? Come on Jeff :beer:

 

[HISSMAN]

Drivability with a pos. displacement blower, stock cams, and a 5.4? Come on Jeff :beer:

Yeah, I didn't mean to type drivability, and after I posted it I thought about changing it. I meant to say the ability to be driven on the street with pump gas.

-Jeff

 

[Fourcam330]

Yeah, I didn't mean to type drivability, and after I posted it I thought about changing it. I meant to say the ability to be driven on the street with pump gas.

-Jeff

Gotcha, FWIW, any FI vehicle that I own/will own will have at least a few gallons of 100-104 unleaded mixed in with 93 if it makes 675rw or more. Definitely cheap insurance by comparison to a blown motor. Pump gas is salad oil.

 

[meaty mac]

Hmm, what do GT's normally dyno with those bolt-ons? The GT-500 will be less of course, (no twin screw :cryying: ). It should give you an idea however, I think GT's with a pulley/tune/catback dyno around that. There is no way a roots s/c could be just as efficent with inferior heads. :shrug:

the shelby has the same heads bud!

 

[SlowSVT]

The flow rate of the heads will not make a big difference on a blown motor. If your going to be pushing 20 lbs. of boost then count replacing the Eaton and running very expensive race gas and make sure you don't wander too far away from that pump.

 

[Fourcam330]

The flow rate of the heads will not make a big difference on a blown motor. If your going to be pushing 20 lbs. of boost then count replacing the Eaton and running very expensive race gas and make sure you don't wander too far away from that pump.

Where did that come from?

 

[kyStang1889]

has ford released any teste 1/4 mile times yet?

 

[4.6speed]

has ford released any teste 1/4 mile times yet?

This is what im waiting for, we can throw around HP numbers all day, I just want to see some bone stock and pullied 1/4 mile times.

 

[ITSTOCK]

it's upsetting to know that the GT500 still has an eaton. I retract my previous statement...

 

[SlowSVT]

Where did that come from?

Guys with fully ported Cobra heads reported only about 25 hp increase. You will get a greater benefit from a ported head on a NA engine where the engine needs all the flow it can get. On a blown engine all one need to do is turn the boost up a little to get the same benefit.

 

[kyStang1889]

will the gt500 have drive by wire like the GT's

 

[SlowSVT]

The GT500 has dual 62 mm TB and yes, it's computer controlled. I don't know what effect will be with swapping that out with a cable and bypassing the computer. I image the 05 GT Mustang guys know the answer to that.

 

[LT1KILLER]

1/4 numbers I have seen have been about 12.5 but I know they have more in them than that, we will see what happens.

 

[Fourcam330]

Guys with fully ported Cobra heads reported only about 25 hp increase. You will get a greater benefit from a ported head on a NA engine where the engine needs all the flow it can get. On a blown engine all one need to do is turn the boost up a little to get the same benefit.

I don't disagree with you, but I must've missed where someone said something to the contrary.

 

[TORQUERULES]

Hmm, what do GT's normally dyno with those bolt-ons? The GT-500 will be less of course, (no twin screw :cryying: ). It should give you an idea however, I think GT's with a pulley/tune/catback dyno around that. There is no way a roots s/c could be just as efficent with inferior heads. :shrug:

They are the SAME heads and cams as the GT.

A GT dynos the same with JUST a pulley change.

 

[crispy23c]

They are the SAME heads and cams as the GT.

A GT dynos the same with JUST a pulley change.

I thought they were the same exact heads, with a different grind on the cams..a little less aggressive. Am I wrong?

 

[GTSpartan]

I thought they were the same exact heads, with a different grind on the cams..a little less aggressive. Am I wrong?

That's what I read

 

[HISSMAN]

I thought they were the same exact heads, with a different grind on the cams..a little less aggressive. Am I wrong?

I have heard the same thing too, but never really thought that much about it because the cam in the Ford GT is not what I would call that aggressive either, so there is probably only a slight difference in the grind.

-Jeff

 

[TORQUERULES]

I have heard the same thing too, but never really thought that much about it because the cam in the Ford GT is not what I would call that aggressive either, so there is probably only a slight difference in the grind.

-Jeff

Actually, I have heard that the cams and heads are exact carry overs.