SOLO NATIONALS PREP GUIDE
SPEC Clutches and Flywheels manufactures high performance clutch kits and
billet flywheels in-house in Birmingham, Ala., specializing in precision-tolerance
production with the highest material quality. SPEC has developed the industry’s
largest performance application listing, executing a strategy of endless performance
potential for the street and perfecting combinations for all types of racing.
www.specclutch.com | (205) 491-8581
SPEC manufactures single disc
versions of our small diameter
multidisc for the lowest possible
inertia in a non-carbon unit.
The pictured Honda S2000
unit includes a billet direct bolt-
in hydraulic release bearing
and weighs 12lbs complete.
These units are available
for most applications for
which we currently build
SMALL DIAMETER ROAD RACE
SPEC manufactures direct bolt-in road race multidisc clutchand flywheel assemblies for most engine-gearbox-chassiscombinations. They are configurable for clamp load,inertia, and disc count ( 2, 3, or 4 disc). Designedfor low inertia, these units providelightning fast shifts, long wearlife, maximum horsepower,and increased rate of revgains. Popular applicationsinclude GM gen III-V(pictured), Ford Coyote,BMW E36/46/9x,Honda B/F/K/H/J series,VW/Audi 1.8T/2.0T,and Subaru WRX/STi.
SPEC manufactures SFI-certified, stock-appearing lightweight pressure plates forroad race, autocross, and street usein many applications. Designedfor low inertia, they providelightning fast shifts, maximumhorsepower gains, increasedreliability for engine anddriveline components, andcan be rebuilt. Popularapplications include all GMV8, all Ford V8, BMW E30,Mazda MX- 5, Honda B-series,Mazda RX- 7 and RX- 8, Porsche 944.
ASSEMBLIES FOR MX- 5
SPEC manufactures all seven-clutchstages in lightweight packages for theMX- 5. These kit are stock-appearing anddirect bolt in. The pictured unit drops asubstantial 18.38lbs off of an OE 1.8LMiata assembly. Designed for streetand race environments, they areoffered in direct replacement singledisc, large diameter multi-disc,and small diameter multi-discconfigurations. The benefits ofreducing rotating mass includemore horsepower, quicker rate ofrev, and increased driveline reliability.
Available for all Miatas and MX-5s.
CLUTCH AND FLYWHEEL ASSEMBLY
FOR THE HONDA CIVIC TYPE R
SPEC introduces a non-ratcheting clutch and billetflywheel package for the Honda Civic Type RK20C1. These assemblies feature a lightweightbillet aluminum flywheel and choice ofclutch stage. The clutch kits hold
355lbs-ft of torque in Stage
1 organic trim, 482lbs-ft
in Stage 3 trim, and
553lbe-ft in Stage 3+trim. The infinitelyrebuildable billetflywheel offers avery noticeablerate of rev andhorsepower increase.
SPEC manufactures forged billet
aluminum and billet steel flywheels
for all performance applications.
SPEC flywheels feature a 0.001machine tolerance, replaceablehigh carbon diamond groundsteel inserts (aluminum bodiedversions), sprung hub pocketswhen possible, heat pressed andfastened ring gear, stepped dowelpins, and race bolt kit. Triggeredflywheels receive a billet CNCtiming gear (vs. rolled steel) anddoweled installation for perfect timingaccuracy and high rpm integrity.