Kenne Bell says it is an Eaton

[crispy23c]

Yep, customer service is not great, nor bad. Very average, with a little arrogance thrown in there for good measure. In all fairness to KB, they sell a very complicated product that has a several potential failure modes. Plus people have a tendancy to push the product beyond it's limit. Combine that with a customer with average mechanical skills, who thinks he knows blowers and tuning and you have a recipe for unhappiness. I've had my run-ins with KB and in the end they were always willing to help. The only problem is that being 3000 miles away makes the help kind of complicated to obtain.

Yeah, but part of the problem is that blower mfrs (all of them) make it sound like you can slap in a blower in 2-3hrs, with average skills. You can bet alot of people don't read the .pdfs provided by the mfrs regarding installation before they buy.
That's the true evil of marketing...and the common mistake of the average shade-tree mechanic.

 

[hawkls1]

In what i've read on the 07 cobra was a screw type not twin screw :shrug:

 

[Z-06_Killa]

In what i've read on the 07 cobra was a screw type not twin screw :shrug:

there are three types of superchargers....centrifugal(vortech/procharger) roots style(eaton), and twin screw(Whipple, Kenne Bell) the only real difference between and eaton and a whipple and KB is the design of the rotors on the inside...

 

[tmhutch]

there are three types of superchargers....
centrifugal(vortech/procharger)
roots style(eaton),
twin screw(Whipple, Kenne Bell)

the only real difference between and eaton and a whipple and KB is the design of the rotors on the inside...

Sooo... the question really is: Will it be a "twin screw" or whatever the alternative is, roots style??

I'm confused :shrug:

Todd

 

[Black2003Cobra]

According to the latest issue of SVT Enthusiast (vol. 8, issue 2, 2005), it will be a screw-type blower. Quote from the article by Gary Witzenburg on p. 21.

“By the time the GT500 hits the streets next summer, it will pump out more than 450 hp – “a higher horsepower rating than any factory Mustang in history,” said chief vehicle engineer Jay O’Connell – and 450 lb-ft. of torque. Force-fed to 8.5 psi by its screw-type supercharger, it features aluminum heads, piston rings and bearings sourced from the Ford GT program, plus variable cam timing and upgraded cooling.”

 

[Fourcam330]

According to the latest issue of SVT Enthusiast (vol. 8, issue 2, 2005), it will be a screw-type blower. Quote from the article by Gary Witzenburg on p. 21.

“By the time the GT500 hits the streets next summer, it will pump out more than 450 hp – “a higher horsepower rating than any factory Mustang in history,” said chief vehicle engineer Jay O’Connell – and 450 lb-ft. of torque. Force-fed to 8.5 psi by its screw-type supercharger, it features aluminum heads, piston rings and bearings sourced from the Ford GT program, plus variable cam timing and upgraded cooling.”

Variable Cam Timing??? Are you sure about that one? I would have thought Ford would have made a much bigger deal about their first production application of DOHC/4v VCT, especially since even the GT motor doesn't have that.

 

[tmhutch]

According to the latest issue of SVT Enthusiast (vol. 8, issue 2, 2005), it will be a screw-type blower. Quote from the article by Gary Witzenburg on p. 21.

“By the time the GT500 hits the streets next summer, it will pump out more than 450 hp – “a higher horsepower rating than any factory Mustang in history,” said chief vehicle engineer Jay O’Connell – and 450 lb-ft. of torque. Force-fed to 8.5 psi by its screw-type supercharger, it features aluminum heads, piston rings and bearings sourced from the Ford GT program, plus variable cam timing and upgraded cooling.”

So, does "screw type" automatically mean it will be a "twin screw" or are their other possible definitions for "screw type"?

Todd

 

[Black2003Cobra]

Yeah, that's what it says Andy. I was surprised to read that, too.

tmhutch - there actually are single-screw compressors, but in this case I think it's safe to assume a twin-screw type.

 

[tmhutch]

tmhutch - there actually are single-screw compressors, but in this case I think it's safe to assume a twin-screw type.

OK, thanks. What came on the 03/04's? Will the GT500 blower be more efficient than the previous Eaton if it is a twin screw?

According to Z-06 Killa, the Eaton is a roots type and not a twin screw...

Todd

 

[BillyGman]

What most people do NOT realize is that Eaton has designed and supplied the TWIN-SCREW supercharger for the 2005 Ford GT supercar. It was NOT Whipple. The point being that while Eaton is known most for their roots superchargers, they also have a contract agreement with Whipple to supply all the OE TWIN-SCREW Lysholm superchargers, while Whipple owns the aftermarket sales for the twin-screw. So just because it might be an Eaton supercharger on the 07 Shelby GT500, doesn't maen that it will be a roots supercharger since Eaton also makes Twin-screw superchargers too.

 

[Black2003Cobra]

OK, thanks. What came on the 03/04's? Will the GT500 blower be more efficient than the previous Eaton if it is a twin screw?

Todd - the supercharger that came in the 03, 04's was an Eaton Roots-type blower. Although Eaton has perfected the Roots style, a twin-screw design does indeed have a higher volumetric and adiabatic efficiency. The higher adiabatic efficiency results in lower outlet temps and lower parasitic drive power. The higher volumetric efficiency tells you how much air it actually flows relative to it's geometrical displacement.

 

[tmhutch]

Thank You Both!!

Very informative and much appreciated.

Todd