810 HP/745 FT/LB KENNE BELL BIG BORE 2.8H SHELBY GT 500 KIT
On November 9th Kenne Bell made history. Our new 2.8H("H" for 2.0 high pressure ratio) Big Bore Twin Screw kit recorded an incredible 810 hp and 745 ft/lbs(SAE corrected). Our Earl's Automotive test car was 100% stock except for cooler plugs, a Kenne Bell boost-a-pump and optional throttle body and inlet system. That's with a stock fuel system (lines, rails, pumps and injectors) through stock cats and exhaust. No headers, cams, nitrous etc., only the 2.8H kit. All with an ultra efficient, compact and lightweight 2L series Twin Screw. The supercharger itself is so efficient that bolting on the big discplacement 2.8H with the same size stock 3" pulley increased power by 125hp(606 vs 481) over the Eaton 122 (2.0L). Same pulley size - same tune. Only a kit change with 100% stock car. The kits HP range is 568 - 810. Preliminary tests indicate it can make 725 hp on pump gas at 16 psi. The new supercharger is so efficient that 1 psi of boost is 25 hp. Remember the "H" series requires less engine HP to drive, By upgrading pulleys(12-20 psi) and optional inlet components(throttle body and cool air kit) there's plenty of room to grow.
Preliminary testing indicates the Shelby makes 725HP on pump gas at only 16 psi and 810 hp at 19 psi. The unusually high HP output is possible because of the 2.8 H's radical 2.0 internal pressure ratio. Other 2.2, 2.3 and 2.4 Twin Screws use a 1.4 built in internal pressure ratio. The new design Kenne Bell 2.8H consumes up to 40 less engine HP to drive, that means 40 more rear wheel HP at the SAME boost. Discharge air temps is also 30 degrees cooler at high boost levels. These two 2.8H features(less parasitic HP loss and lower air temps) are responsible for it's unusually high HP levels.
Equally important to the overall high effeciency of the kit is the cavernous high flow 1000 hp + inlet and a huge new Kenne Bell dual 75mm throttle body.Both were developed on our new 1000 hp flow bench.
Our goal was to engineer a flexible kit with a compact lightweight, highly efficient - low parasitic loss billet twin screw that would make all the HP 99% of our customers would ever need. 810 hp and 670 ft/lbs at only 2500 rpm is more than enough to exceed the design limits of the stock engine and drive train.
Literature and Tech Tips will be posted on our website on Dec. 15th. or sooner. Next we'll gut the cats and test headers, exhaust and cams on the dyno and drag strip. Earl will be doing all the driving. The "Shelby Tech Tips" will include everything we've learned about the car's fuel system, ignition, clutch, inlet system, calibration etc. along with 50 dyno tests from the stock 444hp / 428 ft/lbs to 810 hp / 745 ft/lbs.
We have 2 months of development time and over 500 dyno runs on the Shelby. It is the most exciting, efficient and insanely powerful production engine we've ever done a kit for. By comparison, our GT Supercar made 710hp with a 2.3 Lysholm and Kenne Bell HCD Drive Conversion with 2 1/2 pulley. The KB 2.8 H Shelby made 810 with the same 2 1/2 pulley, throttle body, tune etc.The heads, cams and CR are also the same for both engines, the Supercar even having a perceived power edge with it's exhaust and dry sump. Yet the KB 2.8H equipped Shelby developed another 100 hp (810 vs. 710). The 2.8H is definitely capable of pumping 800 + HP into these engine. Kits should be available Jan. 15, 2007 or hopefully sooner. Again, our kits are designed so yu can customize the desired HP by selecting the pulley, cool air kit and dual 75mm throttle body. Tuner kits are also available and no problems with the pulley to hood clearance at the lower boost/HP levels. 25 HP increments from 568 - 810 with a direct bolt on on upgrade kit and all stock engine components.
The first dyno graph is the KB 2.8H Shelby kit vs. Ford GT Lysholm 2.3 kit with same 2 1/2 pulleys, same timing, and same A/F ratio.
The second dyno graph is the same KB 2.8 Shelby kit vs. stock Shelby Eaton 122 with same 2 1/2 pulley, same timing, same A/F ratio.
My only question is why haven't you done this on the 03-04 cobra's yet? Everyone is dying to know what the results are with totally stock motor/heads, and with ported heads/cams. You are losing sales, and will have a hard time getting the whipple crowd if you don't do this soon. Whipple have their own big blower for the Cobra soon. Don't miss your opportunity.
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KB 2.8~Ford GT pumps~Modded FPDM~CPR rails~
60lb injectors~Accufab throttle body~6lb lower~
3.5" uppper~MAFIA~8an fuel lines~Custom IC reservoir~Johnson Controls IC pump~Mac LT~
Flowmasters~Level 5's~Steeda IRS brace~
Maximum front & rear solid busings~
Maximum polyurethane IRS Cradle bushings~
M/T 315 DR~
SCT Tune
Used to be 452 RWHP/479 RWTQ
Now 703 RWHP/645 RWTQ
My only question is why haven't you done this on the 03-04 cobra's yet? Everyone is dying to know what the results are with totally stock motor/heads, and with ported heads/cams. You are losing sales, and will have a hard time getting the whipple crowd if you don't do this soon. Whipple have their own big blower for the Cobra soon. Don't miss your opportunity.
Because as good as the 281s are, the 331s do much better with the same blower.
____________________________________ 2002 Porsche 996TT
Upgraded Turbos - 600HP... few other things
2003 Sonic Blue Cobra
To date, the quickest/fastest non-ported non-sprayed pullied Eaton 03/04 Cobra on the planet. 10.69 @ 128.59
Last edited by Almo; 11-16-2006 at 12:38 AM.
Vehicle: 2003 Sonic Blue Cobra
HP: 498
TQ: 578
1/4 Mile: 10.69@ 128.59
DAMN, if it will put down numbers like that then there are going to be a bunch of New Z06 owners with alot of hurt feelings!
+ 1 on that!
WOW Makes me want to sell me Cobra and get a GT500.
GREAT Numbers! Cant wait to see more info.
Naw I'm happy with my Cobra.....
Oh yeah any pics of the 2.8L on teh GT500?
____________________________________ 2006 SRT-8 JEEP Tune byhttp://www.modernhorsepower.com/
02 GT full bolt-on 4.10s (sold)
03 DSG Cobra (The Ex has it)
My only question is why haven't you done this on the 03-04 cobra's yet? Everyone is dying to know what the results are with totally stock motor/heads, and with ported heads/cams. You are losing sales, and will have a hard time getting the whipple crowd if you don't do this soon. Whipple have their own big blower for the Cobra soon. Don't miss your opportunity.
This statement sums up alot. Well it can be argued that yes the bigger displacement of the GT 500 will work better with the big blower the gt500 doesn't have a couple things. 1 the following the terminator has. 2 the short block capabilities the terminator has and most importantly 3 the number of owners willing to put that blower on a car that is not 60k brand new (with dealer mark ups at this time. This is a great article and congrats on the numbers but alot of people are going to feel that the attention should have been given to a cobra where there is more owners that would be more willing to spend the money immediately based on these numbers.
____________________________________ 1998 Z28 Nitrous Works wet 100shot BFG DR's
12.88 @ 112 2.0 60ft...needs more power
My only question is why haven't you done this on the 03-04 cobra's yet? Everyone is dying to know what the results are with totally stock motor/heads, and with ported heads/cams. You are losing sales, and will have a hard time getting the whipple crowd if you don't do this soon. Whipple have their own big blower for the Cobra soon. Don't miss your opportunity.
Uh, what do you think they've been doing for the last 3 years? The sales and learning curve from the Term was what led them to this. Info is readily available about stock vs ported h/c on the Term. There are numerous people who have done it.
The Shelby is the new kid on the block and will outperform the Term if everything is equal. Why keep beating a dead horse trying to squeeze every last HP out of the Term when you can increase your market share by going after the Shelby.
)
Would be cool to drop a built/ stroked 5.4 with the 2.8H into my Cobra! Great numbers! Cant wait till all the bolts on are added!
Linear Mode
