Who has Dynoed a stock corbra 03/04?

[rdefino]

I've been looking (maybe not in the right spot) for the dyno results of a stock 03. What's it got for HP and RWHP...for real. Not the ford specs. I know they say 390, but I hear people saying that Ford underrated them for insurance reasons. Anyone got them?

 

[Beau]

I've seen stock 03/04's dyno between 355 rwhp and 370 rwhp. And I mean BONE stock, down to the paper filter.

 

[Narcosynthesis]

I've seen stock 03/04's dyno between 355 rwhp and 370 rwhp. And I mean BONE stock, down to the paper filter.

Why do I always see Cobra spelled as Corbra? Anyway, 370-380 is about right. I dynoed 400 with a steeda air filter and borla stinger exhaust. Not stock, but close enough.

 

[Beau]

People get so excited when they type COBRA that they just forget how to spell. I'm sure some even wet themselves.

 

[super302]

one of the mustang magazines dynoed one at 380rwhp bone stock.

 

[jordanvraptor]

Mine dynoed bone stock at 800 miles and got 371 rwhp and 350 rwtq on a Superflow dyno.

 

[Uncle Meat]

I've been looking (maybe not in the right spot) for the dyno results of a stock 03. What's it got for HP and RWHP...for real. Not the ford specs. I know they say 390, but I hear people saying that Ford underrated them for insurance reasons. Anyone got them?

That 390/390 figure quoted from Ford is Flywheel horsepower. You have to figure in about 12-15% drive train loss based on our T56/IRS.

U.M.

 

[03SilverSnake]

my stock 03 dynoed 377/369. Thats bone stock on a dynojet. dont look at the sig. I put the snorkle back in since taking it out made throttle response a little sluggidh

 

[Pumped03Snake]

Divide the Dynojet peak by .85 to get the crank HP. A 360 rwhp SAE car makes 360/.85=423 at the crank. There are a lot of bone stock 03/04 Cobras making 430-440 at the crank. I'd say Ford under rated it. This is the main reason why it's hard to believe some of the kill stories when a 280-300 rwhp F-Body walks a bone stock 03/04 Cobra excluding driver errors.

 

[brownbrosperf]

All of the 03 Cobra's I have baselined have been 637rwhp on a loaded dyno, the 04's have been 363rwhp.

 

[r6bullet]

"All of the 03 Cobra's I have baselined have been 637rwhp on a loaded dyno, the 04's have been 363rwhp."

Do you mean 367rwhp? I started laughing when I saw that, I know ford underrated them but 637 at the wheels. lol

 

[vipergts281]

Stock Cobra's will dyno anywhere between 355 and 390 rwhp. Mostly in the 370 range.

 

[tschlientz]

several stock 03 runs available at DynoPerformance.com, many more with various mods.

http://dynoperformance.com/index.php

http://dynoperformance.com/search_details.php?ID=600
http://dynoperformance.com/search_details.php?ID=561
http://dynoperformance.com/search_details.php?ID=520
http://dynoperformance.com/search_details.php?ID=377

or use the search function:

http://dynoperformance.com/search.php

 

[PDubs]

Click on sig.

 

[98yellowstang]

360/350 bone stock on a superflow dyno

Chipped was 380/380