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  Billet Drag Racing Clutches

RAM Professional billet clutches are engineered to provide the ultimate in clutch control. RAM billet clutches feature a unique lever design that allows for complete control of the centrifugal loading of the clutch.  Units are available in single, double, and triple disc versions utilizing either 5135 or 5191 compound iron discs. Ten inch units are used in Pro Modified, IHRA Pro Stock, Pro Street, and blown alcohol applications with engines over 1000 horsepower. Eight inch units can be used for NHRA, Competition, and class racing. Seven inch clutches are popular for smaller motor applications including Pro Import.   Every RAM Professional billet clutch is custom assembled for your application based on the specifications of your car. Please allow 2 weeks for standard ring gear configurations, 4 weeks for custom flywheels. Requires a bellhousing depth of 8 1/8 inches or more.

Why a computer will help you

If you are racing in Pro Stock, Pro Modified, Top Sportsman or Pro Street, you need a data logging computer. No other tool in your trailer will help you more in getting you clutch combination correct. By monitoring input shaft RPM, Engine RPM and output you will generate information on how much the clutch is slipping (or not slipping) on launch and through the gear changes. In addition, RAM technicians will be able to better help you analyze your runs for optimum performance. Help with making your clutch work is part of what you should get with a good clutch system, and that's how it works with RAM.
 

Engine displacement
Blower or nitrous?
Fuel
Vehicle weight
Rear end gearing
Transmission type, spline, and gearing
Tire size
Launch and shift RPM
Do you have a computer? 

This information will afford us the best ability to get you in the right clutch and give you accurate starting points to set up in the car.