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Discussion Starter #1
Right now, I have a D&D clutch kit, VForce3 reeds, SW intake, stock gearing & standard track. I have the coupling blocks out, and the front shock almost all the way loose (about 1/4" threads). I get real good hole shots but am looking for a little more speed if it is even possible. Should I throw some 23/40's in or is 600 ft too short for them? What is everyone else running? How is the F7 matching up to zr8's, zr9's, RX1's, REV8's ect? I destroy all 700's and beat most 800's pretty good. Just wondering what setups everyone is running.
 

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I am interested also....have 440' drags coming up in 2 weeks and need a good setup.
 

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Snoerider069....

How did you find the 20/39 in 660', what was your speed and was it faster than the 21/41 in 660'?we used to do grass drags in 500' and we used 20/42 but that was with 9 tooth drivers.....any info would be helpfull......thanks
 

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CAUTION!!!!!!!!!!!!
I loosened up my front shock springs for drag racing so that only about 3/4" threads were showing (std F7). Well, when I went to go trail riding I realized the top aluminum "cup" that holds the spring had fallen out on both shocks and I could not ride. Dealer said those werent really supposed to be loosened that far. Live and learn, but pay close attention to that.
 

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all gearing figured at 7750 RPM 20/40=104 20/39=107 21/41=107 20/42 =99.54 23/40=120.20 stock gears are 22/41 =112 mph hope ths helps if u want a different ratio let me know & I,ll give you speeds
 

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Discussion Starter #12
I know they are top speeds but I wanted to know what distance it took to reach it...1000ft, 2 miles? Just an idea. Like I said before, I want more speed (if it is ieven possible) in 600ft. Will 23/40's do this for me or is it too short of a distance to see a change. With 23/40's, O know I will theortically lose some of the accleration but is it enough to notice? Thanks
 

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I think what your looking is elapse time not top speed. You want to get their firstest I THINK. Its not always top speed.
 

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I will be doing some testing sat,i will try stock gearing and 20/39 in 660' let you guys know what happens.
 

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Originally posted by CatMan9@Jan 21 2003, 08:17 PM
Right now, I have a D&D clutch kit, VForce3 reeds, SW intake, stock gearing & standard track. I have the coupling blocks out, and the front shock almost all the way loose (about 1/4" threads). I get real good hole shots but am looking for a little more speed if it is even possible. Should I throw some 23/40's in or is 600 ft too short for them? What is everyone else running? How is the F7 matching up to zr8's, zr9's, RX1's, REV8's ect? I destroy all 700's and beat most 800's pretty good. Just wondering what setups everyone is running.
600 ft is to short for 23/40's is your short answer.
 
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