2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

EATON-twin screw video

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Old Nov 2, 2006 | 01:19 AM
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From: santa ana
EATON-twin screw video

cant wait, this is going to open the doors wide open for us....EATON reliability with high efficiency

http://www.eatonperformance.com/supe...ideo-clip.html


im so glad eaton did this, guess all the eaton h8rs will have to find another form of forced induction to loathe
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Old Nov 2, 2006 | 01:21 AM
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Keep in mind we have had the same video on the site for quite some time now.

http://www.cobaltss.org/media/2.0-Ecotec.wmv
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Old Nov 2, 2006 | 01:25 AM
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From: santa ana
Originally Posted by Pyros777
Keep in mind we have had the same video on the site for quite some time now.

http://www.cobaltss.org/media/2.0-Ecotec.wmv

check again (note the rotating group)
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Old Nov 2, 2006 | 01:31 AM
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The new TVS superchargers EATON is producing aren't twin-screw superchargers. They simply feature four-lobe rotors (vs. three on previous models) and high-flow inlet/outlet ports to enhance it's thermal efficiency and volumetric output at a higher-RPM than previous roots-style superchargers.

Still, it's excellent news for the LSJ folks!
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Old Nov 2, 2006 | 01:35 AM
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From: santa ana
Originally Posted by Tofu
The new TVS superchargers EATON is producing aren't twin-screw superchargers. They simply feature four-lobe rotors (vs. three on previous models) and high-flow inlet/outlet ports to enhance it's thermal efficiency and volumetric output at a higher-RPM than previous roots-style superchargers.

Still, it's excellent news for the LSJ folks!
its a high helix supercharger, twin screw superchargers are commonly reffered to as high helix superchargers
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Old Nov 2, 2006 | 01:53 AM
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From: Houston
Originally Posted by Serpico
its a high helix supercharger, twin screw superchargers are commonly reffered to as high helix superchargers
Actually sir, a high-helix supercharger is still considered a roots-style blower. Their purpose is to imitate the internal compression that a true lysholm twin-screw supercharger produces. Also, the twin-screw does not have identical rotors, but have a male and female rotor that spin away from eachother:



I'm not trying to being a jerk and argue, but I would hate to see this community start purchasing the TVS supercharger(s) and telling every one they have a twin-screwed Cobalt.
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Old Nov 2, 2006 | 01:54 AM
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From: santa ana
poe-tato pah-tato /shrug
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Old Nov 2, 2006 | 01:56 AM
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The new TVS sc is still concidered a roots style, it uses 2 hi-helix 4 blade 160 degree helix rotors. However it is NOT a twin screw, twin screw sc have 2 different rotors, a male (usually 3 blade) and a female (usually 5 blade) the twin screw uses internal compression meaning it compresses the air INSIDE the casing of the SC rather than stacking the air in the intake manifold like a roots style. However this new roots style design may give twin screw sc a run for their money. One of the down falls of a twin screw is that yes it does create less heat under high boost, but under normal driving conditions because it uses internal compression its ALWAYS generating heat unlike the roots which ONLY generates heat while under boost.
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Old Nov 2, 2006 | 02:00 AM
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From: santa ana
Originally Posted by Blown 4-banger
The new TVS sc is still concidered a roots style, it uses 2 hi-helix 4 blade 160 degree helix rotors. However it is NOT a twin screw, twin screw sc have 2 different rotors, a male (usually 3 blade) and a female (usually 5 blade) the twin screw uses internal compression meaning it compresses the air INSIDE the casing of the SC rather than stacking the air in the intake manifold like a roots style. However this new roots style design may give twin screw sc a run for their money. One of the down falls of a twin screw is that yes it does create less heat under high boost, however under normal driving conditions because it uses internal compression its ALWAYS generating heat unlike the roots which ONLY generates heat while under boost.
hmm this new charger may be in fact be better then the lysholm units, getting the best of both worlds high efficiency and no compression generation under low load
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Old Nov 2, 2006 | 02:02 AM
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Here is a site that explains the differances between the two and more.

http://www.coloradocobras.com/whippl...rchargers.html
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Old Nov 2, 2006 | 02:02 AM
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Originally Posted by Serpico
hmm this new charger may be in fact be better then the lysholm units, getting the best of both worlds high efficiency and no compression generation under low load
Well we have yet to see what kind of boost this new unit is capable of, a lysholm 1200 ax with reworked bearings can make as much as 35 psi!!!!!111!!11!11oneone!!
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Old Nov 2, 2006 | 03:32 AM
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Originally Posted by Serpico
check again (note the rotating group)
Oh man how could I not catch that. Looked the same to me because of the identical animation. Didnt think to look for differences in the actual rotors lol. Good eye.
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Old Nov 2, 2006 | 09:17 AM
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Hmm this looks interesting, would this supercharger be a direct replacement for the M62 we've got on the SS/SC? (sorry if thats a n00b question, but thats what I be...)
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Old Nov 2, 2006 | 09:52 AM
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Who cares what its called, where can i get one, is it a direct replacement to the M62, how much cost, boost and when
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Old Nov 2, 2006 | 10:00 AM
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the tvs R1320 is aparently a 1320 cc per rev unit wich works out to about 80.5 cubic inches in other words it falls just between a m62 and a m90 if i can get my hands on one thats the unit ill try to get.
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Old Nov 3, 2006 | 12:16 AM
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I cant wait for it to come out. For sure it's gonna shut up some big ego around us.
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Old Nov 3, 2006 | 02:31 AM
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Originally Posted by Serpico
the tvs R1320 is aparently a 1320 cc per rev unit wich works out to about 80.5 cubic inches in other words it falls just between a m62 and a m90 if i can get my hands on one thats the unit ill try to get.
Actually because it is more efficient than the current m62, I would go with the r1050, that is almost the same size as the m62 but would generate less heat and more boost
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Old Nov 3, 2006 | 09:58 AM
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So are the units themselves available through eaton as of yet? Or whats the word on all this hub-bub?
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Old Nov 3, 2006 | 10:59 AM
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They are not available yet
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Old Nov 3, 2006 | 05:50 PM
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I wonder if these rotors will fit in my ported M62...
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Old Nov 3, 2006 | 06:33 PM
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when is the release date? after SEMA?
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Old Nov 3, 2006 | 06:44 PM
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^^what's up with the link in your sig??
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Old Nov 3, 2006 | 06:45 PM
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I think he is trying to say that the mods here are *****.
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Old Nov 3, 2006 | 08:21 PM
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Definately doing a swap when the new gen of sc from eaton comes out. I have the plans in teh making
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Old Nov 3, 2006 | 10:48 PM
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how about making that rotor and slap it in our sc's.
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