Here is some info, makes worthwhile reading:TWIN_VS_ROOTS
Here is some info, makes worthwhile reading:TWIN_VS_ROOTS
Smokie
12.79 @ 107 mph.
60' 1.851 Street tires & Stock wheels.
TIMESLIPS
Performance Mods: Base Trilogy Kit, Exhaust, PHP Airbox.
Visit my Garage
Florida "The Supercharged State"
I just took a peek at the Kenne Bell propaganda... Why were all the tests run at 12000 RPM?? How about a more realistic test of, say, 6000-7000 RPM?
Could it be that the results were not all that different at real-world speeds?
Makes you think, eh?
John
John that's 12,000 blower rpms. The usual ratio between crank and blower pulley is 3 to 1, so the engine is doing about 4k, we do that at WOT.Originally Posted by TooManyFords
Last edited by Smokie; 04-21-2006 at 07:13 AM.
Smokie
12.79 @ 107 mph.
60' 1.851 Street tires & Stock wheels.
TIMESLIPS
Performance Mods: Base Trilogy Kit, Exhaust, PHP Airbox.
Visit my Garage
Florida "The Supercharged State"
Ah... I see. That's why my GMC 6-71 runs so much cooler because it is run 10% underdriven from the crank. I wonder if KB tested against mine?
John
My random .02C...
Want to know why the engine bay look like *****? Look in the background of the pics. Colorado. Horse Ranch? Hell, look at the dust bowl next to the car.
If a twin screw isn't superior to a Roots, why are so many Cobra and Lightning owners upgrading to twin screw kits? How can there be an upgrad kit, without it being even slightly better? Isn't it like a 70-80 RWHP gain?
Go you one better...Anytime I can add chilled air to any application, supercharged, or, not, I'm in.Originally Posted by Breadfan
True! Cooler intake are = denser intake charge = good.Originally Posted by SergntMac
As for the twin-screw, from what I have read the twin screw IS a more efficient design. I've also heard Kenne Belle has a lock on the specific blower they use - I heard only they can sell it. Aside from that I think Whipple is the only other maker of a twin screw.
Is that true or just rumor mill?
Trilogy #112 (self installed)
- Trilogy S/C (Stock pulley/tune) - 4.10's - JLT - SS Inserts - 4" Megs -
12.99@106.2mph (for now)
Bolt a Kenne Bell to a Cobra with an exhaust system and you make 600 to the wheels. And you can do it with a mail order tune.
Guess Kenne Bells fit under the hood.
Lyshom makes twin screw blowers.Originally Posted by Breadfan
Lets say Jerry Barnes or MikesMerc were to bolt a Kenne Bell on their car in place of the Eaton.
They could throw their Nitrous in the trash and run 10's.
For about 3500 bucks, that is the route Id be going.
At what boost level?Originally Posted by Zack
11.98 @ 115 mph"Comfort, Class and Hair on Fire Performance."
They have forged motors, Id throw 20 pounds at it.Originally Posted by DEFYANT
There is an '03 Cobra at our local track that is running a KB with about 22 psi and his car ran a 9.002 on nitto drag radials. The car looked absolutely stock on the outside and that was just with the KB kit.
That car FLEW!
john
Good read, thanks for the link.Originally Posted by Smokie
I "remember" (probably from a dream) hearing Jerry say something about Trilogy working on a twin screw design. If that came out I would probably have to spend the money (assuming it was affordable). I am not out to set any records but it appears to be a very efficient way to provide 7 to 10 psi of boost to an otherwise stock engine.
jta
2003 Marauder 300A
--76 of 7838208 of 7839
--Born on 5/27/02
--4:10 gears
--SCT9100 Tuner (Lidio's Tune)
--BFG KDW2 Tires (235/50 front; 255/55 rear)
--12C spark plugs
--Granatelli Connectors
--Pro-Guard
1976 Eldorado Convertible For Sale
In line for a 2023 F-150 Lightning XLT
Jerry will be offering a twin screw later.Originally Posted by GarageMahal
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