If you are going to do a roots/twin screw type, go with a kenny Bell, Whipple or a Saleen(not Roush)..And they are more than $4,500 for a full kit I believe..anyway.
There are so many things wrong with this statement, I really don't know where to begin?The first thing about centris is they are more efficient than screw-type blowers ie they take less power to run them and punch hard at the top end so you should use less gas.
Why not Roush? Their proven, reliable and priced accordingly?
The 427R put the Saleen S281 on the trailer in their last comparison, so it isn't for lack of power?
Do you honestly believe that? The Saleen made 30 more horsepower and 25lbs ft more torque and weighed 324lbs less than the Roush and still got beat. Not to mention on an open track event like the on the two were tested on, there was no standing start for traction or suspension to be an issue. The 427R just plain out pulled the Saleen in the strait aways.That was because of suspension.
It is widely known that the roushcharger is NOT upgradeable or expandable like the Saleen, whipple, and KB kits. Roushcharger probably couldn't hit more than 500rwhp with everything (maybe more but I doubt it) whereas the saleen, whipple, and kb can reach well over the 600rwhp mark with proper internals and tune.
Do you honestly believe that? The Saleen made 30 more horsepower and 25lbs ft more torque and weighed 324lbs less than the Roush and still got beat. Not to mention on an open track event like the on the two were tested on, there was no standing start for traction or suspension to be an issue. The 427R just plain out pulled the Saleen in the strait aways.
Perhaps it won't knock down the big number on the dyno that the twin screw based units will, but it's still quite a capable system none the less. Whether it'll top them or not in peak horsepower is really irrelevant to anyone who isn't planning on tearing into their engine and fortifying the bottom end, since it's perfectly capable of making enough power to break the rods and pistons as it sits.
Look at even the latest 427R MM&FF tested that knocked down 12.4's through an automatic transmission in bone stock trim and went 12.2's on drag radials. A slightly looser converter, some computer and some shift schedule tuning and you've to yourself a high-11 second performer without cracking the nut on the supercharger pulley. Not too bad IMO.
I'm not saying the Roushcharger is the best of the bunch, but It's certainly not to be discounted simply because it's not built with a Twin Screw as it's base motivation.
Watch the video again. If they were going from a dig and the Saleens suspension wasn't providing adequate squat or weight transfer to sustain traction, then I could see your point and that being the issue, but suspension had nothing to do with the Saleen being pulled by the Roush in the rolling runs of the strait away where traction wasn't a problem. My guess is (like pretty much all smaller blowers) the M90 on the Roush is much more responsive and makes more usable power under the curve than the Saleens twin screw does. Big blowers have big lungs, but that deep breathing capability comes at a price.Yeah, I believe it was mostly suspension. You can have ALL the power in the world but if you can't put it to the ground, a Miata will take you.
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