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RAM
Street Dual Disc clutch systems |
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Key
features: |
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| RAM
Poly-coil hub assembly
boasts the strength needed for high torque applications. The
urethane encapsulated damper springs provide up to four times the
shock load of conventional clutch springs. |
RAM
billet flywheels are
manufactured in house to our exacting standards for design,
machining, and balance. Friction surfaces are precision ground for
flatness, zero runout, and surface finish for friction material
compatibility. And you get the right fit for your performance car! |
Strap
Driven Force 9.5 and 10.5 clutches eliminate the floater plate
rattle that is prevalent in stand-driven multi disc clutches.
For vehicles that see mostly street use these clutches are the
predominant choice. |
Stand
driven RTrack dual disc units feature
a heavier duty drive mechanism for the floater plate that stands up
to more abuse in vehicles that see the race track more often than
street. Some floater plate rattle will occur with these units. |
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RAM Street Dual disc systems
are specifically engineered for today’s late model performance cars and
engine swaps into earlier vehicles. The purpose of these clutches is to
provide smooth driveability for high power levels that was previously not
available using aggressive friction material single disc clutches.
Friction material is not the only consideration for good driveability. We
also need to maintain enough overall weight in the clutch assembly so that
the clutch can be driven at lower RPM and maintain vehicle inertia without
‘bucking’. If the clutch assembly is built too light, driveability on
the low-end suffers. Applications with large camshaft profiles are prone
to this and need the inertia of a heavier unit if the owner wants to
maintain this low speed driveability. On the other hand, drivers of
road-race inspired vehicles will benefit from the lighter weight of a
smaller diameter clutch as it allows the vehicle to drive deeper into the
turns before letting off the throttle, and accelerate back to torque range
quicker coming out of the turns. Most RAM Street Dual systems are
engineered for proper fit with late model hydraulic release systems. The
setup height of the clutch is critical to proper operation; this
eliminates the need for spacers or other modifications to the release
mechanism. Dual disc clutches that bolt to a stock flywheel can be a
release problem! Most every RAM dual disc works with the factory release
system; the few that do not will function correctly by adding a RAM
internal hydraulic bearing. So keep in mind, the smallest and lightest
clutch assembly may not be right for your particular application. Depend
on a clutch company that properly engineers their clutch systems to fit
your particular vehicle.
If you are unsure which unit
is best for your application, contact
the professionals at RAM to help you determine the best choice .
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| The RAM Force 9.5
is the ideal entry level dual disc clutch for street use. With torque
capacity to roughly 800-foot pounds and a moderate clamp pressure, it will
handle small blower or turbo installations and provide a light pedal
effort similar to the stock clutch. In fact, drivers of our 2010 Camaro
test vehicle were not able to tell that the stock clutch was changed at
all! The floater plate is driven from three sets of straps that eliminate
any floater plate rattle at idle. The top clutch disc features a sprung
hub assembly that absorbs the initial engagement of the clutch and reduces
the chance of chatter on takeoff. This clutch is compatible with factory
hydraulic release mechanisms except as noted in the application guide. It
is compatible with all factory master cylinder systems when used in
conjunction with a RAM hydraulic release bearing. |
For
higher horsepower applications, the Force 10.5 dual disc is the natural
choice. Based on the design of the original RAM Street Dual, Force 10.5 is
more street friendly by using a three strap system to locate the floater
plate. This eliminates floater plate ‘rattle’ that is common on stand
driven dual disc clutches. A high clamp load pressure plate assures plenty
of holding power without excessive pedal pressure. Steel backed 300 series
facing mean smooth engagement on takeoff and insure long service life. For
higher torque capacities, the Force 10.5N features the proven RAM 900
series metallic facings. Force 10.5 dual disc systems handle bigger torque
loads and are a bit heavier than their smaller cousins. This higher
inertia translates into better low speed driveability in heavier vehicles,
or in large camshaft profile applications. If you are bolting on a larger
blower or turbo system, Force 10.5 may be the best choice for you. |
The RAM RTrack
Dual is modeled after our highly successful drag racing clutches used in
high horsepower Pro Stock and Pro Modified applications. The major
difference between these clutches and the Force 10.5 is the floater drive
system. RTrack Dual uses a stand driven floater plate, which provides
higher torque capacity and negative load capacity for vehicles that see
more use at the track. It uses a 2400 pound clamp load pressure plate for
good holding power without excessive pedal effort, and features 300 series
sprung hub top disc and solid hub bottom disc for smooth engagement. A 900
series disc version is available for higher torque load applications up to
about 1300 foot pounds. Expect some floater plate noise at idle with this
unit’s drive system. If you need the ultimate in holding power and
durability for street or strip, the RTrack Dual is for you! |
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Application
chart
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