Drag Racing Discussions > Front Engine Dragsters

First passes with a clutch

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Paul New:
Finally made it out to the track first pass with a clutch was quite a bit smoother. First pass ran a 6.95 @ 202 with a .058 light second pass was a 6.98 @ 201 with a .066 light. Had only .004 wear on the clutch pack each pass zeroed it out but made zero changes. Now I need to lean it out some as it was way to fat!

Thanks to Andi and Larry McFarland for the pic

masracingtd1167:
Great job !

H.G. Wells:
Very cool, tell us more about the set up.  What clutch are you using?

Paul New:
My combo is 387ci 4.125x3.625 with Brodix canted valve heads. I ran this engine in the car for years with a powerglide and a 8-71HH Littlefield and a powerglide, the best pass to date was a 6.64 @ 206 W/4.11 gears 4%OD we swapped out the 4.10's and put in 3.70's to drop the RPM's across the finish line it slowed the car down a little but less maintenance spun the blower a little harder 12%od to run consistent 6.70's.

Now we decided to switch to a clutch to have some adjustability for slick tracks. I bought a 9" 3-disk titanium pedal clutch from East West. The transmission is a B&J 3-speed w/1.94 low gear. We also changed blowers this season to a 10-71HH SSI that needs to be re-stripped, I put a very fat fuel set up in the car just to be safe in case the blower made more boost than I assumed. I only made two passes this weekend we had a rain out. Our next race is in three weeks I am going back to a fuel tune up I know works with the boost I built this last weekend to see if I can bring some ET back.

H.G. Wells:
Thanks for the info, why a 3 speed?

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