New supercharger kit
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Joined: Nov 2006
Posts: 748
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From: PDX west
Cool, so the race is on: Axial Flow, FastForward coldside w/MP62, or JR w/Rotrex. The next 3-6 months are critical for these guys to win some business. It will be interesting to compare their engine management solutions, since the AEM is so expensive (although I'm sure its good). Hopefully all this will drive turbo prices down also.
Rotrex is using turbo compression impellers because the viscous coupling on the drive side allows much higer RPM than a gear driven coupling, so they can achieve performance/efficiency like a turbo, less the parasitic load required on the drive side.
The ultimate - an exhaust driven axial flow - super high RPM, lowest rotary inertia, lowest parasitic load!
Rotrex is using turbo compression impellers because the viscous coupling on the drive side allows much higer RPM than a gear driven coupling, so they can achieve performance/efficiency like a turbo, less the parasitic load required on the drive side.
The ultimate - an exhaust driven axial flow - super high RPM, lowest rotary inertia, lowest parasitic load!
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Joined: Sep 2006
Posts: 202
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From: Thousand Oaks, CA.
Originally Posted by WLAURENT,Nov 8 2006, 07:24 PM
Had a discussion with one of the Jardine guys working on the JR Rotrex projects. Looks like the Jardine and Doug Thorley companies are in the same building as Jackson Racing - not sure who owns them or what the relationship is with JR.
The 5PSI kit will be available beginning of January. They have a prototype running but would not provide much info about setup, fuel, etc..
The 5PSI kit target price is $3700. The 10PSI kit will be intercooled and will go for $5100 (again - target price).
The rotrex SC does not work like a centrifugal SC. The traction drive is essentially a planetary gear set that allows it to spool the turbo impeller to full boost with as little as 2000 RPM at the drive pully. From there it will hold the boost through the RPM range all the way to redline. Was told that in practice they have been seeing full boost at as low as 1500 RPM. I do not know how it works, only know that is what I was told.
The 5PSI kit will be available beginning of January. They have a prototype running but would not provide much info about setup, fuel, etc..
The 5PSI kit target price is $3700. The 10PSI kit will be intercooled and will go for $5100 (again - target price).
The rotrex SC does not work like a centrifugal SC. The traction drive is essentially a planetary gear set that allows it to spool the turbo impeller to full boost with as little as 2000 RPM at the drive pully. From there it will hold the boost through the RPM range all the way to redline. Was told that in practice they have been seeing full boost at as low as 1500 RPM. I do not know how it works, only know that is what I was told.
Mike
Joined: Aug 2006
Posts: 3,214
Likes: 32
From: Huntsville, AL
Originally Posted by slimjim8201,Nov 9 2006, 10:44 AM
Is there any other method of blower speed control other than the viscous changes in the oil?
Hydraulic pump on the crank
Hydraulic motor on the input to your step up gearing.
Pump to motor fluid transfer say at 1Krpm
Joined: Aug 2006
Posts: 3,214
Likes: 32
From: Huntsville, AL
The AFSC is very small (approx the size of a WD40 can)
Very thermodynamically efficient (heat of compression) with usually greater then 90% efficiency.
Very low polar mass moment of inertia.
Compressor speed (boost pressure) is ultimately controlled by controlling the hydraulic fluid flow through the motor.
Low compressor drag during off boost condition if TB is on the inlet side;
Despite the
Very thermodynamically efficient (heat of compression) with usually greater then 90% efficiency.
Very low polar mass moment of inertia.
Compressor speed (boost pressure) is ultimately controlled by controlling the hydraulic fluid flow through the motor.
Low compressor drag during off boost condition if TB is on the inlet side;
Despite the
Joined: Mar 2002
Posts: 116
Likes: 2
From: Ogden
I noticed under research and developement on the rotrex site, that there is another company working on an electric CVT transmission for the rotrex. That would give any flow that you want (within the limits of the compressor map) at virtually any rpm!
I'm a softmore in an EE program, and looking at the current market and I was wondering if it was possible to do something like a CVT electric, then I found out about that company doing it with rotrex. I want to see how their product turns out.
I'm a softmore in an EE program, and looking at the current market and I was wondering if it was possible to do something like a CVT electric, then I found out about that company doing it with rotrex. I want to see how their product turns out.
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Joined: Dec 2005
Posts: 524
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From: New York, NY
Originally Posted by copec,Nov 9 2006, 03:46 PM
I noticed under research and developement on the rotrex site, that there is another company working on an electric CVT transmission for the rotrex. That would give any flow that you want (within the limits of the compressor map) at virtually any rpm!
I'm a softmore in an EE program, and looking at the current market and I was wondering if it was possible to do something like a CVT electric, then I found out about that company doing it with rotrex. I want to see how their product turns out.
I'm a softmore in an EE program, and looking at the current market and I was wondering if it was possible to do something like a CVT electric, then I found out about that company doing it with rotrex. I want to see how their product turns out.
Are you sure you're in the right major?
hehe j/k bro
In all seriousness though, I think we just all need to wait and see what they come out with
Joined: Mar 2002
Posts: 116
Likes: 2
From: Ogden
Originally Posted by ignition25,Nov 9 2006, 05:09 PM
I believe it's spelled sophomore
Are you sure you're in the right major?
hehe j/k bro
In all seriousness though, I think we just all need to wait and see what they come out with
Are you sure you're in the right major?
hehe j/k bro
In all seriousness though, I think we just all need to wait and see what they come out with