according to the new car and driver in which they drive the thing, its going to have a roots type supercharger, not a twin screw. is this going to keep some of you from buying one? i dont see the big difference, 475 hp is 475 hp.
its NOT going to be a screw type blower
- Thread starter mustangsnoopy
- Start date
Roots=Twinscrew
Good chances it will have hte Eaton Twinscrew on on it. BTW the EATON on the FORD is a ROOTS Twinscrew.
Good chances it will have hte Eaton Twinscrew on on it. BTW the EATON on the FORD is a ROOTS Twinscrew.
mustangsnoopy said:
You will on a pulley change...
97topless snake said:
:dw: :dw: :dw: :dw: :dw: :dw: :dw: :dw:
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97topless snake said:
Roots is not the same as Twin Screw.....
Eaton = Roots
KB and Whipple = Twin Screw
this subject is adequately discussed in the huge car and driver thread, isn't it? 
oke:
oke: 
Looks like the "twin screw snobs" will be taking up arms with those "irs snobs"
I Sure Hope It Is Twin Screw
-cory
-cory
Jpjr said:this subject is adequately discussed in the huge car and driver thread, isn't it?
Yep...and a few others.
The Real Snake said:
But then Eaton can also be a twin screw because they are partners with Lysholm and anytime the Lysholm twin screw is used in a OEM application its furnished by Lysholm thru Eaton and will have the Eaton name on it. When its aftermarket the same Lysholm twin screw will come stamped with Whipple, they are the aftermarket distributors for Lysholm. Thats why when you seen the Shelby prototype it had Eaton marked on it but looked exactly like the Whipple save for the funny looking pulley. I say the C&D magazine don't know what the hell they're talking about!!!
The Real Snake said:
no, eaton makes a roots-type blower and a twin-screw (aka Lysholm) blower. :bash:
It seems as though people are confusing brand names with blower types.
A roots type blower slaps air and is not a true compressor.
A twin screw blower compresses air in a screw type motion.
No matter who's name is on the case, it has to be one or the other, not both.
A roots type blower slaps air and is not a true compressor.
A twin screw blower compresses air in a screw type motion.
No matter who's name is on the case, it has to be one or the other, not both.
serpentnoir said:
He got the almighty foot in the ass.....
If it does end up getting a roots blower, hopefully the internals can still handle a real blower.
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I never said Eaton ONLY makes a Roots type blower.
I was just explaining to whoever said Roots=Twin Screw they are not the same, and that the Eaton found on the 03-04 Cobra (and the Lightning's, Pontiac GTP's, and practically every other OEM application) is an Eaton Roots Style Blower. KB and Whipple, etc on the other hand, sell Twin Screw Blowers and it is NOT the same thing. I was just explaining it to him with example's using the = sign, so he might better understand.
I was just explaining to whoever said Roots=Twin Screw they are not the same, and that the Eaton found on the 03-04 Cobra (and the Lightning's, Pontiac GTP's, and practically every other OEM application) is an Eaton Roots Style Blower. KB and Whipple, etc on the other hand, sell Twin Screw Blowers and it is NOT the same thing. I was just explaining it to him with example's using the = sign, so he might better understand.
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This is who I was correcting.97topless snake said:
LOL. There always seems to be a lot of confusion about this topic of supercharger types. But I see that a couple people here have it correct. Eaton makes both a roots design as well as a TWIN-SCREW design, while Whipple and Kenne Belle ONLY make the Twin-screw design.
The difference is in the shape of the rotors inside the supercharger case. As indicated in a previous post in this thread, the twin-screw S/Cers have two rotors that are male and female, which are shaped like giant wood screws, and compress the air in the supercharger case itself. The roots design has two rotors also, but the rotors in them have lobes that aren't shaped like those in the twin-screw S/Cers. And the roots design compresses the incoming air in the intake manifold, rather than inside the S/Cer case like the twin-screw design does.
They're both excellent designs coming from the Eaton company, but the twin-screw designs (from any of the three copanies mentioned) are known for more power potential, and are particularly better for running over 13 PSI than the roots types are. However, I wonder how much difference in the two there would really be for applications under 10 PSI, because the GT500 will be running under 10 PSI from the factory.
The difference is in the shape of the rotors inside the supercharger case. As indicated in a previous post in this thread, the twin-screw S/Cers have two rotors that are male and female, which are shaped like giant wood screws, and compress the air in the supercharger case itself. The roots design has two rotors also, but the rotors in them have lobes that aren't shaped like those in the twin-screw S/Cers. And the roots design compresses the incoming air in the intake manifold, rather than inside the S/Cer case like the twin-screw design does.
They're both excellent designs coming from the Eaton company, but the twin-screw designs (from any of the three copanies mentioned) are known for more power potential, and are particularly better for running over 13 PSI than the roots types are. However, I wonder how much difference in the two there would really be for applications under 10 PSI, because the GT500 will be running under 10 PSI from the factory.
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I heard barely under 10 psi, like 9.5
I also heard 10 psi. I still like the twin screw better, because of the broader power band and the vast potential to unleash extra power after the warranty. :burnout:
I also heard 10 psi. I still like the twin screw better, because of the broader power band and the vast potential to unleash extra power after the warranty. :burnout:
The Real Snake said:
KB also does the roots. sorry to burst your bubble. :-D :loser:
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