Vortech or Saleen Supercharger??
03-24-2006, 12:12 AM
#21
5th Gear Member
Join Date: Aug 2005
Location: Whitehall, Michigan
Posts: 2,638
RE: Vortech or Saleen Supercharger??
ORIGINAL: ZAMMiT
good info to know, thanks..im trying to take in all the knowledge i can about chargers as fast i can, cuz i dont know much. but is there any benefits to the top mount charger rather than the ones mounted in front of the engine? the top mount charger usually makes a whining new too, correct?
good info to know, thanks..im trying to take in all the knowledge i can about chargers as fast i can, cuz i dont know much. but is there any benefits to the top mount charger rather than the ones mounted in front of the engine? the top mount charger usually makes a whining new too, correct?
"Front mounted" blowers are commonly centrifugal, and turbos. Same goes with the above, though. These tend to make a whistle.
03-24-2006, 12:23 AM
#22
6th Gear Member
Join Date: Jan 2004
Location: United States
Posts: 12,575
RE: Vortech or Saleen Supercharger??
ORIGINAL: ShadowDrake
This is just a little too off.
The 03/04 Cobras come with an Eaton blower. Eaton is simply a brand. It is a roots-style blower. A Kenne bell (or Whipple) blower is a twin-screw style blower. They are both very similar, the key difference is the design of the two rotors which make boost. In a twin screw, they come very close to touching (but don't). Kenne bell has some information on the differences between the two in their tech articles. http://www.kennebell.net
Twin screw, and roots style blowers produce compression in the intake manifold area, after the throttle body. Centrifugal blowers produce boost in the air intake, before the throttle body.
The twin screw blowers cost more, but are superior in the way that they make a considerable amount of boost with VERY low RPMs, compared to a centrifugal which has to spin very high... While making boost down low is good for overall power, it's bad for the track because you are more likely to spin off the line with the added power down low. It's a mixed blessing.
ORIGINAL: 2000GT4.6
The 03s don't come with a whipple. Whipple is a aftermarket blower (a twin screw). The 03 come with a eaton style blower
A eaton and a twin screw are just two different designs for a top mount blower. I beileve that all of the eatons compression takes place after the blower, while the twin screws make the boost interneally. Twin screws are more efficent and make more power.
The KB is more costly, and they will also run SLOWER in a 1/4 mile race. They develop alot of power down low though, so alot of people get extremely excited about them. Pretty much no matter what RPM you are at if you punch it they develop boost and power, while a centrifugal needs to spin higher RPM to make power.
The 03s don't come with a whipple. Whipple is a aftermarket blower (a twin screw). The 03 come with a eaton style blower
A eaton and a twin screw are just two different designs for a top mount blower. I beileve that all of the eatons compression takes place after the blower, while the twin screws make the boost interneally. Twin screws are more efficent and make more power.
The KB is more costly, and they will also run SLOWER in a 1/4 mile race. They develop alot of power down low though, so alot of people get extremely excited about them. Pretty much no matter what RPM you are at if you punch it they develop boost and power, while a centrifugal needs to spin higher RPM to make power.
The 03/04 Cobras come with an Eaton blower. Eaton is simply a brand. It is a roots-style blower. A Kenne bell (or Whipple) blower is a twin-screw style blower. They are both very similar, the key difference is the design of the two rotors which make boost. In a twin screw, they come very close to touching (but don't). Kenne bell has some information on the differences between the two in their tech articles. http://www.kennebell.net
Twin screw, and roots style blowers produce compression in the intake manifold area, after the throttle body. Centrifugal blowers produce boost in the air intake, before the throttle body.
The twin screw blowers cost more, but are superior in the way that they make a considerable amount of boost with VERY low RPMs, compared to a centrifugal which has to spin very high... While making boost down low is good for overall power, it's bad for the track because you are more likely to spin off the line with the added power down low. It's a mixed blessing.
I could swear I saw MM&FF talking about the eaton/roots blowers making boost not in the blower case but in the intake or some ****. Dunno why it would make a difference though..
Centrifugal for the win!
03-24-2006, 12:27 AM
#23
5th Gear Member
Join Date: Aug 2005
Location: Whitehall, Michigan
Posts: 2,638
RE: Vortech or Saleen Supercharger??
ORIGINAL: 2000GT4.6
Centrifugals don't have to spin "very high" to make more power, just above about 3K to see real boost. I saw a massive difference even down around 2800 RPM.
I could swear I saw MM&FF talking about the eaton/roots blowers making boost not in the blower case but in the intake or some ****. Dunno why it would make a difference though..
Centrifugal for the win!
Centrifugals don't have to spin "very high" to make more power, just above about 3K to see real boost. I saw a massive difference even down around 2800 RPM.
I could swear I saw MM&FF talking about the eaton/roots blowers making boost not in the blower case but in the intake or some ****. Dunno why it would make a difference though..
Centrifugal for the win!
03-24-2006, 12:30 AM
#24
6th Gear Member
Join Date: Jan 2004
Location: United States
Posts: 12,575
RE: Vortech or Saleen Supercharger??
ORIGINAL: ShadowDrake
Well, you're making what, 3 lbs of boost that low? It's enough to feel, but at 2800 rpm with a twin screw/roots you're almost at full boost, if not there already. Where you get into boost is the biggest difference between a twin screw and centrifugal
ORIGINAL: 2000GT4.6
Centrifugals don't have to spin "very high" to make more power, just above about 3K to see real boost. I saw a massive difference even down around 2800 RPM.
I could swear I saw MM&FF talking about the eaton/roots blowers making boost not in the blower case but in the intake or some ****. Dunno why it would make a difference though..
Centrifugal for the win!
Centrifugals don't have to spin "very high" to make more power, just above about 3K to see real boost. I saw a massive difference even down around 2800 RPM.
I could swear I saw MM&FF talking about the eaton/roots blowers making boost not in the blower case but in the intake or some ****. Dunno why it would make a difference though..
Centrifugal for the win!
I make boost pretty quick after 3k. It of course does'nt peak until almost redline, but the boost is pretty fat alrady at around 3.5K.
The whole point of my other post with the videos in it is to dispel the thought that the centirfugals are doggy like a oversized turbo. It seems to have invaded alot of peoples thoughts on this forum somehow.
03-24-2006, 09:53 AM
#25
4th Gear Member
Join Date: Apr 2005
Location: California
Posts: 1,093
RE: Vortech or Saleen Supercharger??
hmm...thats a little weird...cause i was starting to think that the centrifugals work like a turbo and the reason i was thinking that was cause i was driving in 5th gear and at about 2400rpm and i smashed the gas pedal and by the time i went up to about 2700 rpm it was already at 5 lbs of boost... so i dunno.
03-24-2006, 11:51 AM
#27
5th Gear Member
Join Date: Jan 2006
Location: Orange County, California
Posts: 2,375
RE: Vortech or Saleen Supercharger??
ORIGINAL: so1o2k3
So...for 1/4 mile centris are better than twin screw huh? hmm...
So...for 1/4 mile centris are better than twin screw huh? hmm...
03-24-2006, 01:54 PM
#29
3rd Gear Member
Join Date: Feb 2006
Location:
Posts: 823
RE: Vortech or Saleen Supercharger??
this is my view on them
if you like to drive around town and have fun. just punching from stop sign to stop sign or stop light to stop light. go with the KB
if you really into racing, either at the strip or on the street, go with the centrifugal.
if you like to drive around town and have fun. just punching from stop sign to stop sign or stop light to stop light. go with the KB
if you really into racing, either at the strip or on the street, go with the centrifugal.