Keene Bell or Roush

4142 Views 11 Replies 9 Participants Last post by thump_rrr, Feb 6, 2006

Born To Run

Discussion Starter · Feb 3, 2006

I want a supercharger for my 05 GT.I would like about 425 brake HP.Roush only boost 5 psi adding 100 HP = 400 HP,with that what else can i do to get 25-30 more HP.I think running over 425 HP the engine will not take the stress as long as i would like.Roush pick up the balance of the factory warranty on drivetrain.Keene Bell offer 6-9 psi pushing the HP 100-150 more.No balance of factory warranty on driveline.Twin screw is a nice design though.Please help me make the correct decision.I live in Toronto Ontario, i don't know any installers of Keene Bell products do you? One last ?? will the superchargers change my emissions output? We have to test our cars every 2 years & they must be within the specific car design limits of emissions.Will my CO/NOX go up or stay the same?

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tw0scoops123

· #2 · Feb 3, 2006

Born To Run said:
I want a supercharger for my 05 GT.I would like about 425 brake HP.Roush only boost 5 psi adding 100 HP = 400 HP,with that what else can i do to get 25-30 more HP.I think running over 425 HP the engine will not take the stress as long as i would like.Roush pick up the balance of the factory warranty on drivetrain.Keene Bell offer 6-9 psi pushing the HP 100-150 more.No balance of factory warranty on driveline.Twin screw is a nice design though.Please help me make the correct decision.I live in Toronto Ontario, i don't know any installers of Keene Bell products do you? One last ?? will the superchargers change my emissions output? We have to test our cars every 2 years & they must be within the specific car design limits of emissions.Will my CO/NOX go up or stay the same?

It's Kenne Bell by the way:winks I wasthinking about getting a SC but turned away. But if I was gunna get one, I would go with the Kenne Bell TS(intercooled). They're pretty sweet. Plus they have this valet mode where you can turn the boost off, if you need to drive it in the winter which, judging from your location, that'd be good for you.

I think I'm going to end up just throwing on a CAI, exhaust, a tune, and maybe some UD pulleys. Anyway,good luck.

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MN. SCOOTER

· #3 · Feb 3, 2006

Roush Vs. Kenne Bell

When you said Roush will "pick up" the balance of the factory warranty, I beleive you have to have that installed by an authorized Roush dealer. Which would probably add quite a bit to the cost. I believe both are excellent superchargers and you would be happy with both. If this is something you were going to do yourself then I would go with the Kenne Bell. If you were going to have someone install it then the Roush has a better arguement.IMO.
As far as emissions, I believe the "tune" would be the solution for that. I'm sure you'll here from both sides on this one. But above all else, have fun and drive the car!

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toolttime

· #4 · Feb 3, 2006

Iwent with roush cause of their track record in racing and engineering and the look of oem to it. The keenebell I find looks like it was thrown together with not much thought to it.

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Tastyone

· #5 · Feb 4, 2006

The Bell S/C with a proper tune makes gobs of power, somewhere close to 500 rwhp if memory serves but who knows how long till it grenades:happyhapp . I suppose the Rousch system could crank out more hp with a smaller pulley for more boost but then they would lose bucks on warranty claims. I'm no mech. dude by any stretch but it would appear that having 400-425 hp is about the max. to drive frequently without blowing stuff up. Maybe even less power with sticky Micky's, I dunno, if I'm wrong someone will set me :dunce: straight.

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nonsensez9

· #6 · Feb 4, 2006

ford racing will have the whipple soon. I think it's definitely worth checking into. http://www.fordracingparts.com/superchargers/superchargers.asp
odds are they'll provide a nice safe tune for ya.

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thump_rrr

· #7 · Feb 4, 2006

Why did you not consider the Saleen? It makes ok power with low boost and if you ever wanted to up the power JDM Engineering has a proven setup. From what I hear they're one of the cheapest places to get the Saleen.

I also like the Kenne Bell seems to be a complete package but I'm not too keen with the look of the plastic inlet pipe. It looks a lot cleaner in a Cobra engine bay.

The only thing going against the Roush in my book is that it's a Roots type.

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toolttime

· #8 · Feb 5, 2006

The only thing going against the Roush in my book is that it's a Roots type.[/QUOTE]
And what's wrong with the roots type?? Top fuel, alchohol cars, pro modified all use roots. The rotors on the 05 roushcharger look just like a twin screw. The big thing with the roush is the enginnering that went into the design of the intake and the s/c. I know cause I have one and it runs perfect right out of the box and was complete.

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thump_rrr

· #9 · Feb 5, 2006

toolttime said:
And what's wrong with the roots type?? Top fuel, alchohol cars, pro modified all use roots. The rotors on the 05 roushcharger look just like a twin screw. The big thing with the roush is the enginnering that went into the design of the intake and the s/c. I know cause I have one and it runs perfect right out of the box and was complete.

Roots type blowers don't make as much power as twin screws. It's not relavent in this case since he's only looking for 400rwhp.
The stock 03-04 cobras have roots type and people take them out to install twin screws quite regularly.

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MadFlava

· #10 · Feb 6, 2006

While I cant vouch for the longevity of the 05-06 engines with the Kenne Bell unit, I had a 90 LX convertible with a KB unit on it that lasted for over 70K miles and the blower was still going strong (With the factory engine and transmission, I might add) when I sold it. The Whipple is a quality piece.

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05HOTROD

· #11 · Feb 6, 2006

I have a roush, but I'm going with the kenne bell instead of the roush.
I drove a 05 with a roushcharger and it did'nt seem to put out that much horsepower vs a kennebell. someone on one of this forum did a dyno test with the roush blower and it put out 356 to the rear wheels. the kenne bell with their mild tune put out 420 to the rear wheels.
besides, the dealer where I live wants 7200.00 for the blower and labor.

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thump_rrr

· #12 · Feb 6, 2006

I'm a track [email protected] with over 550 runs this past season. A friend of mine who is a local Roush authorized dealer offered to install a blower on my car for his cost.
When we discussed this issue in depth we realized that there wouldn't be a great enough performance improvement to impress anyone since I'm already running [email protected]
The factory airbox and maf must be used along with a canned Roush tune.

Roush doesn't have a tune for the auto trans or he would have made the offer to enitalp who is also a customer of his.

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