90GT Posted May 30, 2008 Report Share Posted May 30, 2008 Forced Air Performance Supercharger Kit KEY FEATURES Rotrex C38 Supercharger 7:1 drive ratio Unique charger design offers all the low-end benefits of a twin-screw/roots unit High efficiency compressor design has the best top-end characteristics on the market Self contained oiling system with steel braided lines Oil system installs simply with AN fitting and manufactured lines Supercharger oil should be changed every 50,000 miles or once per year Super Capacity Liquid to Air Intercooler One of the highest efficiency intercoolers that is compact and easy to install High quality electric coolant pump the same unit as used by several OEM's Push lock coolant hoses Bar & Plate Liquid-to-Air intercooler Large aluminium front mount Tube & Fin heat exchanger Industry leading weld quality for custom look Supercharger brackets and pulleys all machined from billet aluminium Billet 7075 dampener, FEAD pulley and blower drive pulley (replaces OEM dampener to eliminate broken crank bolts that plague competitors) 8 rib drive belt system with tensioner The separate supercharger drive belt eliminates slip and broken belts Main bracket comes pre-assembled High-Speed bearings used in all idlers for long lasting performance Oversize Air-By-Pass System for quieter operation without air pressure noise High Flow Air Filter Replacement performance fuel injectors Optional electronic tuning via OBDII electronic downloader Complete installation in about 4 hours Sounds promising, I'll have to keep tabs on this kit as it develops. This month's 5.0 Mustangs and Fast Fords is supposed to test the kit so I'll have to go get a copy. :happy feet: Link to comment Share on other sites More sharing options...
SGT2666 Posted May 31, 2008 Report Share Posted May 31, 2008 I was just reading about this unit in Motor Trend its a pretty interesting idea isn't it. Link to comment Share on other sites More sharing options...
Five Oh B Posted May 31, 2008 Report Share Posted May 31, 2008 OK, someone educated me. Sure looks like a centrifugal blower from the pictures provided. The head unit looks like any Paxton or Vortech out there, so how does it build instant boost like a twin screw? Link to comment Share on other sites More sharing options...
moabman Posted May 31, 2008 Report Share Posted May 31, 2008 Even the blade design looks the same. They may have the blower geared a little different so that it is spinning faster at lower engine RPMs but I think that technique may hurt the upper end a little (why wouldn't everyone do that?) Link to comment Share on other sites More sharing options...
SGT2666 Posted May 31, 2008 Report Share Posted May 31, 2008 The new 5.0 Mustangs and Super Fords has an article on it pg 94. It is different in how it drives the impeller and can achieve impeller speeds of 200k RPM sounds like its somewhat of a blend of turbo and supercharger technology. Link to comment Share on other sites More sharing options...
90GT Posted May 31, 2008 Author Report Share Posted May 31, 2008 OK, someone educated me. Sure looks like a centrifugal blower from the pictures provided. The head unit looks like any Paxton or Vortech out there, so how does it build instant boost like a twin screw? From the Rotrex web site: Key to the Rotrex supercharger's unique compactness, efficiency, low noise and reliability is its state of the art traction drive technology. Great speeds and low noise are just some of the advantages of traction drives over traditional gear transmissions. Traction drives transmit power through friction forces between its rolling elements. The Rotrex patented traction drive uses an elastic annulus with a small pre-span to secure contact between the roller planets and the sun shaft with a reasonable force. The patented "ramp effect" increases efficiency and reliability in the transmission by regulating the torque transfer capability on demand through self-adjusting planet geometry. To enhance performance, the Rotrex traction drive uses a special traction fluid. These fluids are a new family of synthetic hydrocarbon oils and greases offering a series of unique performance advantages. Developed specially for its use in Rotrex superchargers, the SX100 momentarily increases viscosity under high surface pressure, enhancing the traction drive performance by securing the optimum friction between rolling elements while cooling and protecting the system. This traction drive combined with the latest technology in centrifugal compression, characterized by high adiabatic efficiency and low noise, gives Rotrex superchargers an exceptional competitive edge over any other forced induction solution. Every Rotrex product, from concept to market, goes through an efficient and strict development process following the highest industrial quality standards. The entire process is led by our highly capable staff in collaboration with clients, suppliers and partners to ensure the highest customer satisfaction. Before final release to the market, every product passes through demanding approval tests, fully monitored and controlled. The traction technology inside every Rotrex supercharger demands extremely accurate components and assembly. The manufacturing of our superchargers is therefore highly developed, involving efficient quality control and supply chain management. The key advantages of the patented traction drive design are: Torque-on-demand Speed up to 250,000 rpm Efficiency up to 98 percent Compactness Reliability Low NVH Low cost Rotrex.com Link to comment Share on other sites More sharing options...
Five Oh B Posted May 31, 2008 Report Share Posted May 31, 2008 I think I saw their step up ratio as being much higher than a Paxton or Vortech, but as moabman pointed out, that likely hurts the top end. Also, the increased friction they mention (for their traction drive) implies more heat being generated. Heat is not a good thing in a unit that already produces a lot of heat. And, if you have to use a proprietary oil and change it every 5,000 miles, the maintenance cost/time may errode any performance advantage. As much as I didn't want to punch holes in my oil pan, the trade off is that my supercharger will get fresh oil every 3,000 miles during routine oil changes with no additional labor or expense. Link to comment Share on other sites More sharing options...
Five Oh B Posted May 31, 2008 Report Share Posted May 31, 2008 elastic annulus with a small pre-span Am I just being homophobic, or does this sound odd? Link to comment Share on other sites More sharing options...
RUFDRAFT Posted May 31, 2008 Report Share Posted May 31, 2008 You're being homophobic. Link to comment Share on other sites More sharing options...
90GT Posted June 1, 2008 Author Report Share Posted June 1, 2008 It's interesting technology to say the least. I'm looking at a Procharger for mine. Link to comment Share on other sites More sharing options...
RUFDRAFT Posted June 1, 2008 Report Share Posted June 1, 2008 Jim - check out where the Procharger intake sits in the engine compartment. It's facing the firewall. Link to comment Share on other sites More sharing options...
90GT Posted June 1, 2008 Author Report Share Posted June 1, 2008 Jim - check out where the Procharger intake sits in the engine compartment. It's facing the firewall. Yeah I saw that. Tons of people are running them without problems so I'm not too worried about that. Plus the Saleen hood puts the vent right over the air intake on the Procharger. :happy feet: My second choice would be the Paxton set up just like on the Shelby GT's. It's at least a year off before I do any thing so I have plenty of time to research. Link to comment Share on other sites More sharing options...
RUFDRAFT Posted June 1, 2008 Report Share Posted June 1, 2008 The Paxton set up is the same as my Vortech. Link to comment Share on other sites More sharing options...
Five Oh B Posted June 1, 2008 Report Share Posted June 1, 2008 The Paxton set up is the same as my Vortech. I have noticed that the Paxton & Vortech look identical. All the intake/discharge tubes look like they're made from the same company. Is it possible that both companies are outsourcing and they are really one in the same product? Link to comment Share on other sites More sharing options...
RUFDRAFT Posted June 1, 2008 Report Share Posted June 1, 2008 I've been told they're one and the same. Link to comment Share on other sites More sharing options...
Five Oh B Posted June 1, 2008 Report Share Posted June 1, 2008 I've been told they're one and the same. If I had to guess, I'd say Paxton (which used to be McCullough back in the day, and is the older of the two companies) is likely the maker, while Vortech may be buying their wares from them and remarketing them? Of course, I don't really know who owns who anymore. Link to comment Share on other sites More sharing options...
90GT Posted June 2, 2008 Author Report Share Posted June 2, 2008 I'm totally confused over this supercharger thing, need a little advice. I want to improve the performance of my car without killing my gas milage. I originally thought that by switching to a centri supercharger, I could granny shift the car keeping it out of boost and not hurt the gas milage. Now I'm starting to think the Saleen may be the better bet as the boost comes on early and I won't have to run the car as hard. I don't beat on my car every time I drive it, mostly I just drive it normally and then get on it when I feel like playing. I'm looking for about 400 rwhp, don't really care to push it any further than that. Changing gears is also out due gas consumption. Which supercharger would you guys get if you were in my position ??? Link to comment Share on other sites More sharing options...
RUFDRAFT Posted June 3, 2008 Report Share Posted June 3, 2008 I'm getting 20 around town and 29-30 at 60 mph. Link to comment Share on other sites More sharing options...
RUFDRAFT Posted June 3, 2008 Report Share Posted June 3, 2008 If I had to guess, I'd say Paxton (which used to be McCullough back in the day, and is the older of the two companies) is likely the maker, while Vortech may be buying their wares from them and remarketing them? Of course, I don't really know who owns who anymore. Shelby is installing Vortech's on his SGT's in Vegas. Link to comment Share on other sites More sharing options...
90GT Posted June 3, 2008 Author Report Share Posted June 3, 2008 I'm getting 20 around town and 29-30 at 60 mph. That's what makes the Vortech so appealing, I doubt I would get those numbers from the Saleen. Link to comment Share on other sites More sharing options...
Five Oh B Posted June 4, 2008 Report Share Posted June 4, 2008 I'm getting 20 around town and 29-30 at 60 mph. I get crud for mileage, but chalk it up to the big stall converter I had installed in my auto trans. Any slight throttle input flashes the rpm's waaaaay up, which generates instant boost, which in turn kills my mileage. I'm getting 12-13 mpg in town and 20 tops on the highway at any speed - slow or fast. Without the converter flash, I suspect #'s like Ruf's would be much easier for me to achieve, especially with a good dyno tune. Therefor, getting a centrifugal and staying light on the throttle at lower revs would likely equate to better fuel economy than a roots/TS blower that makes instant boost at low rpm's. Link to comment Share on other sites More sharing options...
RUFDRAFT Posted June 4, 2008 Report Share Posted June 4, 2008 I'm going to do a tank-to-tank full mileage check. Of course, it's going to give me a combined mpg figure. I'm skeptical of the computer readout. 30 mpg at 60 mph sounds hard to believe. I don't know how that system works or whether or not the new tune is affecting its accuracy. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.