2008 Cobra Jets belong in Stock

[Jeff Lee]

Originally Posted by Evan Smith

Ed F.,

You can look at the engine specs on line and see the differences, but in a nutshell, the CJ has less compression by a full point (which is a big deal even with a blower), smaller valves, smaller cams and smaller throttle body.

Evan

Evan,
You need to have a staff meeting on this! Seems to be some ambiguity on the specs between the GT500 & the CJ500 engine specs. But for the real tech heads, it's all on-line at www.nhra.com .
(From Muscle Mustangs & Fast Fords online 02/11/2009, see complete article and source @ http://www.musclemustangfastfords.co...jet/index.html )

"...Ford delivers the Cobra Jet cars with a glaring 400 horsepower (nudge-nudge, wink-wink), a rating far under the combination's potential thanks to Ford Racing electronically controlling output so that it fits in the rules. Let's be realistic, the engine is a GT500 powerplant with a TVS blower, larger throttle body and MAF sensor, and long-tube headers amongst some other minor details. The 400 horse rating is far less than what that engine could produce with a little bit of a workout on the chassis dyno...."

Seeing that Ford Racing is "Ford Racing electronically controlling output", I'm still sticking to my prediction of 9.38 @ 142 that will ultimately be unleashed from these Shelby's, err, Mustangs!

And one last thing and then I quit, if these were labeled "Shelby's" with the "lite-weight drag-pack" option instead of Mustangs, I wouldn't have any beef.

Congratulations on Ford putting together one helluva package!

[Tom P]

Ford did that with the 428 Cobra Jet too but it's been worked out fairly. The engine relies on boost rather than RPM and if that is limited so is power. These things have tiny 3 1/2" bores and huge 4 1/4' strokes.

The Shelby GT500 could just as well have been called the Mustang Cobra but marketing it on the Shelby name and heritage seems to have worked well for sales. Check the window sticker on one and see where they are shipped from.

[Jeff Lee]

Originally Posted by Tim Kish

Jeff you have a misperception about the current Ford Shelby GT500 Mustang. This is a fully Ford produced car (8000+/yr are built) built on the standard Mustang assembly line this vehicle comes as you know with a 5.4L S/C engine built on a Ford assembly line. The Shelby name on this car is only badging.

The Shelby name is a car company name. You can buy a Shelby through your Shelby "authorized" Ford dealer but it is still a Shelby. The vehicles that Shelby produces start with Ford platforms and Ford drivetrain but in the end they are Shelby's. That's why 1967 GT500's can race with non-existant (at the time) single 4bbl's et al, because Shelby (not Ford) signed the required NHRA documentation.
Today and for the last several years, Ford Motor Company has only produced for public roadways a Mustang with either a 4.6L V-8 and a V-6.

[Tom P]

Originally Posted by Jeff Lee

The Shelby name is a car company name. You can buy a Shelby through your Shelby "authorized" Ford dealer but it is still a Shelby. The vehicles that Shelby produces start with Ford platforms and Ford drivetrain but in the end they are Shelby's. That's why 1967 GT500's can race with non-existant (at the time) single 4bbl's et al, because Shelby (not Ford) signed the required NHRA documentation.
Today and for the last several years, Ford Motor Company has only produced for public roadways a Mustang with either a 4.6L V-8 and a V-6.

Not so at all. There is a Shelby GT which is a regular Mustang sent to Shelby's facility across the street from the parking area at LVMS for cosmetic add-ons. The GT500 comes out of Detroit that way.

[ss3845]

No Chad I don't think those combos make that much HP. Yes, the car is underfactored, but you can't say put this combo on a dyno and adjust the HP but don't worry about all the other combos in the guide. I think you guys are blowing this out of proportion. I don't think there will be that many people running them. Who would want to work on one, much less tear it down at the track? There has been a supercharged Mustang in the guide for years and nobody has run one (that I have seen).

Does anyone know how many people are planning on running this combo?

[Tim Kish]

Originally Posted by Jeff Lee

The Shelby name is a car company name. You can buy a Shelby through your Shelby "authorized" Ford dealer but it is still a Shelby. The vehicles that Shelby produces start with Ford platforms and Ford drivetrain but in the end they are Shelby's. That's why 1967 GT500's can race with non-existant (at the time) single 4bbl's et al, because Shelby (not Ford) signed the required NHRA documentation.
Today and for the last several years, Ford Motor Company has only produced for public roadways a Mustang with either a 4.6L V-8 and a V-6.

Jeff there are two types of Shelby vehicles. Ones that were built as standard Fords (and previously Dodges) then delivered to Shelby Automobiles where they were modifed (ie: the original 67 GT500's, GLHS omni's and Chargers, etc), then there are the OEM built cars that carry only the Shelby name - Regular Shelby Chargers, Shelby Z Daytona's and the current GT500 Mustang. Shelby Automobiles does offer their own versions of the Mustang but they don't touch the GT500.

[K Stubbs]

That is a sweeeeeeeeet car!!!!!! Good for FORD.