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Author Topic:   rpm
Dirt Full Roller

Total posts: 31
posted November 22, 2002 11:47 AM
How many RPM's are ya'll turning on 1/4 mile and what gear are you using to get it? My engine is cast crank, Hyd. cam and 4BBL.,stock intake and 9-1 comp.

Dirt Freak

Total posts: 310
posted November 22, 2002 12:20 PM
This is gonna be diff eveywhere I run a 688 and turn around 6800 but if the track is heavy I lose about a 100 Rpms and if it's dryslick you really have to pedal at times

Dirt Freak

Total posts: 273
posted November 22, 2002 01:34 PM
Flatlander? Are you running that much gear at Atomic? Or are you running Spring City's 1/4 mi?

Dirt Freak

Total posts: 430
posted November 22, 2002 03:55 PM
I turn 6400 with a 7.66 on a .3 mile track. 3550 lbs w/92" rollout.

Dirt Freak

Total posts: 310
posted November 23, 2002 03:37 AM
Thats the gear I use on any !/4 I ran a 640 at atomic Ist time I ran a 656 and its was too much I ran Spring city a couple of times you could run a little more there because you just race down the straits and park in the turns

jhon hollomon
Dirt Maniac

Total posts: 181
posted November 23, 2002 10:18 AM
I ran a basicly stock bottom end motor in my street stock last year. I turned aroud 6700 with a 6.50.

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