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2009 Shelby GT500 w KB 2.8H Mammoth!!

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Old 04-16-2009, 12:28 PM
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Default 2009 Shelby GT500 w KB 2.8H Mammoth!!
We just finished this 2009 Shelby Cobra last night. Car made 430 RWHP stock.
4hrs later 750 RWHP!!! The car drives just like stock... REALLY!


2009 Shelby GT500 100% STOCK!
Stock Motor
Stock Exhaust including cats
Kenne Bell 2.8H Mammoth Supercharger


751 RWHP
681 RWTQ

Not bad for a few hours work!

Dyno Video

http://videos.streetfire.net/video/G...9-w_646948.htm



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Old 04-16-2009, 12:59 PM
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Nice gains! 23psi huh? Can you run that high of boost on 93 octane or does it require race gas? What was the power on 15psi? Very impressive for so few mods.
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Old 04-16-2009, 01:03 PM
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Wow impressive! Those cars are well designed just like the 03-04 cobras.
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Old 04-16-2009, 01:13 PM
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That's pretty sick.
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Old 04-16-2009, 01:14 PM
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Originally Posted by Patrick G
Nice gains! 23psi huh? Can you run that high of boost on 93 octane or does it require race gas? What was the power on 15psi? Very impressive for so few mods.
23psi is race gas only. 17-19 psi is max on pump for kb's (usually)

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Wow impressive! Those cars are well designed just like the 03-04 cobras.
Even better actually
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Old 04-16-2009, 01:16 PM
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Originally Posted by Patrick G
Nice gains! 23psi huh? Can you run that high of boost on 93 octane or does it require race gas? What was the power on 15psi? Very impressive for so few mods.
It needs and octane booster to make over 730 RWHP, it made 656 RWHP on 16 psi which is the 91 octane pulley they send with the kit you can run up to 720 RWHP on just 93 octane.
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Old 04-16-2009, 09:20 PM
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extremely impressive.
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Old 04-16-2009, 09:43 PM
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wow thats thing screams
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Old 04-16-2009, 10:07 PM
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Originally Posted by Robert@G-Force
It needs and octane booster to make over 730 RWHP, it made 656 RWHP on 16 psi which is the 91 octane pulley they send with the kit you can run up to 720 RWHP on just 93 octane.
Awesome numbers! I bet with a set of long tubes and full 3" exhaust it would break 700rwhp on pump gas.
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Old 04-16-2009, 10:08 PM
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what a beast. nice numbers!
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Old 04-17-2009, 04:09 PM
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Old 04-17-2009, 05:09 PM
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Wow, those KB cars are getting crazy! I remember when I thought that almost 600 was insane for those cars, lol.
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Old 04-17-2009, 06:48 PM
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600 lbs at 2800, gonna need 30" slicks lol
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Old 04-17-2009, 07:20 PM
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Originally Posted by stumprrp
600 lbs at 2800, gonna need 30" slicks lol
600 ft lbs from 2800 rpm till you let out
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Old 04-18-2009, 07:25 AM
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OK OK..... now lets see her hook and go That would suck to accidentally pick on that one, on the highway... well if he had some sticky tires to make it work that is. GETTER DUN!!!!!!!
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Old 04-18-2009, 11:28 AM
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Wow. crazy power and still streetable.
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Old 04-18-2009, 12:29 PM
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Originally Posted by mike c.
Wow. crazy power and still streetable.
Thats the thing with FI cars, They will make insane power and still be docile on the street. Especially those 4v mustangs.
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Old 04-18-2009, 01:20 PM
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Originally Posted by Robert@G-Force
We just finished this 2009 Shelby Cobra last night. Car made 430 RWHP stock.
4hrs later 750 RWHP!!! The car drives just like stock... REALLY!


2009 Shelby GT500 100% STOCK!
Stock Motor
Stock Exhaust including cats
Kenne Bell 2.8H Mammoth Supercharger


751 RWHP
681 RWTQ

Not bad for a few hours work!
great numbers. what are the specs of the stock engine? compression ratio? cams specs? is the rotating assembly forged steel, forged aluminum pistons?

thanks.
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Old 04-18-2009, 01:22 PM
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those cars need blowers to make torque at all. modular mustangs without a kenne bell or whipple are junk. stock gt500s run 12.4 thats slow with a blower and 500 horse. but congrats thats insane power.
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Old 04-18-2009, 02:14 PM
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wow sick power !
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