All poking aside for now. Let's just get some facts from the man who made the blowers (Bell himself). Quotes taken directly from KB's website.
*"Evan Smith, Tech Editor of Muscle Mustangs and Fast Fords drove Richard Juliano's Kenne Bell Supercharged 665HP Cobra with 18 psi and 94 octane pump gas to a 10.71/133 on street drag radials and stock
suspension." (That mph sounds more like it)
*"Dyno tests with a 2.2L and 3" pulley vs. a 2.4L and 3-1/2" pulley, both at 24 psi, indicated no advantage in power for the 2.4L." (I do believe ASD's car is less than 24psi)
*"That car was completely stock except for a Kenne Bell
supercharger at 20 psi, Cool Air Kit, Boost-A-Pump, Boost-A-Spark, and Switch Chip. It made all that power through
the stock exhaust, cats and manifolds (no headers),
stock MAF, throttle body, pumps, injectors and fuel rails. We
decided to stop at 617 rwhp because the stock 40lb (rating at 39 delta psi) injectors were maxed out at 85 psi fuel
pressure and 600 rwhp.
Earl’s car ran in the 10's (
10.47/133 corrected for altitude at LACR) the first time out with headers, cat back exhaust,
X-pipe, big oval throttle body, chip, Boost-A-Pump, Siemens “55#” injectors and 12" filter at
650hp. After the new
tune at Kenne Bell, it made
700 rwhp at 25 psi." (
Again we see 130mph trap speeds. Also, we see 700rwhp with returnless fuel system.)
*"The stock Cobra and Lightning fuel lines and rails are adequate to 700HP, but there's a 7 psi pressure loss in the fuel line between
the tank and fuel rail so we'd recommend upgrading to a larger 3/8" or ½"line. This change reduces the loss to virtually 0 psi."
*"The stock lines will unquestionably support 700HP. The stock fuel rails are also OK. Only a 3 psi loss from front to rear.....Retain the stock Cobra pumps with the Kenne Bell BOOST-A-PUMP™. It's plenty of fuel for 750HP and 60lb
injectors. "
If it ain't broke, don't fix it."......At around 700HP, plan on installing another
FPDM in parallel to handle the additional amp load of the pumps."
Articles:
http://www.kennebell.net/techinfo/ford-techinfo/Cobra_03_2400techtips.pdf
http://www.kennebell.net/techinfo/ford-techinfo/Cobra_LightningTechTips.pdf
Here's another article that is an interesting read.
http://www.musclemustangfastfords.com/tech/mmfp_0605_hellion_turbo_install/
They use a new fuel feed line, but the system remains returnless. I am not saying that returnless is better, but I figure if everyone else is getting away with it there shouldn't be a problem. As I've found talking with tuners across the country the returnless style fuel system takes some playing with to get working perfect, but isn't that what staying on the cutting edge is all about?
Here concludes my book for tonight.