trademark Posted July 21, 2009 Report Share Posted July 21, 2009 question guys looking to know what some good times are on the 421 cub motors and someone maybe around 250 pound rider. took mine out this weekend running a 18/38 gear +12 swinger ...it was hooking great but i wasn't impressed with the times best was a 7.0.. a little info would be great Quote Link to comment Share on other sites More sharing options...
Sammy Posted July 21, 2009 Report Share Posted July 21, 2009 question guys looking to know what some good times are on the 421 cub motors and someone maybe around 250 pound rider. took mine out this weekend running a 18/38 gear +12 swinger ...it was hooking great but i wasn't impressed with the times best was a 7.0.. a little info would be great 60 foot times, mph!?!? Quote Link to comment Share on other sites More sharing options...
FASTOYS Posted July 21, 2009 Report Share Posted July 21, 2009 Kubitza took one of our stock cyl. 4mms out and ran 6.7s at 100mph FIRST TIME on the track. Another customer ran, (first and only full pass) a 6.6 i believe at over 101 mph pedaling it in a wheelie and letting off couple of times during the run to hold it down with a F.A.S.T. 4mm cub. His second pass on the bike he stripped the teeth off of 2nd gear. : ( Hard telling what it would of run but it would of been good!! 7s isnt terrible, it takes time and lots of tinkering! Quote Link to comment Share on other sites More sharing options...
quadgod211 Posted July 21, 2009 Report Share Posted July 21, 2009 i would be disappointed if my 421 didnt run a low 6 high 5 with the right set up....but i weigh 175lbs and a aftermarket frame.... it ran 3.96 on motor in 300ft dirt .....there was a 421 klotz bike on the atv dragracer video that ran a 6.1 and it was on a stock frame..... matt Quote Link to comment Share on other sites More sharing options...
trademark Posted July 22, 2009 Author Report Share Posted July 22, 2009 Kubitza took one of our stock cyl. 4mms out and ran 6.7s at 100mph FIRST TIME on the track. Another customer ran, (first and only full pass) a 6.6 i believe at over 101 mph pedaling it in a wheelie and letting off couple of times during the run to hold it down with a F.A.S.T. 4mm cub. His second pass on the bike he stripped the teeth off of 2nd gear. : ( Hard telling what it would of run but it would of been good!! 7s isnt terrible, it takes time and lots of tinkering! yea i know mark i got the pipes and swinger set-up from him on my 4 mil and i have talked to him on the phone..he told me his times ....thats were i what it to be but.. Quote Link to comment Share on other sites More sharing options...
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