03 Cobra rwhp...

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Nov 29, 2008 | 01:39 PM

#21

xxkazp3rxx

6th Gear Member

Joined: Dec 2005

Posts: 5,893

From: Florida

oh ok.. if you and your buddy are doin it together, then that makes it a bit easier.. I could probably do headers myself; but don't want the hassle to be honest...

Ported blower/Nitrous was my original plan with my Cobra, but obviously it didn't get that far, haha.. however, I do have some friends in my ear about a certain mach 1 with a certain 100-125 shot ugh! lol

Nov 29, 2008 | 02:04 PM

#22

grnsleeper

1st Gear Member

Joined: Dec 2007

Posts: 56

save your money on the headers i have read on several places that the stock 03 cobra headers are good for almost 500rwhp

Nov 29, 2008 | 03:05 PM

#23

Timspony

Thread Starter

SVT Section Moderator

Joined: Jul 2008

Posts: 15,600

From: Burnt Hills, NY

Quote:

Originally Posted by xxkazp3rxx

lol you'll see... remember this thread

I say 450 or so... especially with the bigger pulley.

OK...enough said!

...PS: I also have a 2.76 BF pulley if I need a little extra!

Nov 30, 2008 | 12:42 AM

#24

RuffCat

3rd Gear Member

Joined: Jan 2008

Posts: 609

Quote:

Originally Posted by 5 point 1

Don't bother with the headers. Headers are pretty much useless on our cars, until you get ported heads. Have you seen how small the exahust ports are on our heads? Compared to an LS car, they are TINY. You will see extremely minimal gains, with headers.

What are you talking about? LongTube headers are worth almost 30rwhp on these cars.
Also, a modded cobra producing 15psi(2.66" i believe) will make no more than 480rwhp without LT's. That is on a realistic Mustang Dyno. Real numbers not over inflated DynoJet numbers.
There were 2 simliar 03 cobras on the dyno when I went and one ran 466rwhp and the other 476rwhp. Your only making roughly 440-50rwhp is my guess