RobbinsSr Posted November 18, 2009 Report Share Posted November 18, 2009 Whats the best final drive gear for THR in a thunderstock? Link to comment Share on other sites More sharing options...
RockStan Posted November 18, 2009 Report Share Posted November 18, 2009 you can get away with anything from a 620 to a 650 probably wouldnt go lower or higher than those Link to comment Share on other sites More sharing options...
RobbinsSr Posted November 18, 2009 Author Report Share Posted November 18, 2009 thanks Stan. I'm running a 609 now and cant get the pull off the corner so that will help Link to comment Share on other sites More sharing options...
abrungot Posted November 18, 2009 Report Share Posted November 18, 2009 Depends on the Cam... but Stan's got the range covered. i have run 6.20 & 6.50.. Big gamble is the HP/T Curve on your cam & how you handle in the corners Also do you want to turn 6200 or 6800 RPM.. Link to comment Share on other sites More sharing options...
RockStan Posted November 22, 2009 Report Share Posted November 22, 2009 yeah i seen you was runnin the 243's if you can go to a 256 or a 411 and run 2nd gear that will give you a 624 i might have a set of 411's ill look around in the shop when i get it re organized Link to comment Share on other sites More sharing options...
RobbinsSr Posted November 22, 2009 Author Report Share Posted November 22, 2009 thanks stan. but the only proble with that is my trany wont run in 2nd. it slips very badly, shift it back down to 1st and no problem. any sugestions there? Link to comment Share on other sites More sharing options...
abrungot Posted November 22, 2009 Report Share Posted November 22, 2009 thats stan. but the only proble with that is my trany wont run in 2nd. it slips very badly, shift it back down to 1st and no problem. any sugestions there? time to get it freshen'd up.. I believe that is the one that I used to own.. its had a long racing life & used to be raced full time in 2nd.. & don't think its been gone thru since i pulled it from my car back 4 years ago.. Link to comment Share on other sites More sharing options...
sandersracing Posted December 21, 2009 Report Share Posted December 21, 2009 time to get it freshen'd up.. I believe that is the one that I used to own.. its had a long racing life & used to be raced full time in 2nd.. & don't think its been gone thru since i pulled it from my car back 4 years ago.. It was rebuild. to be ran in first. dont know about the second gear slipping. i would call the builder. Link to comment Share on other sites More sharing options...
matt5858 Posted December 21, 2009 Report Share Posted December 21, 2009 I used to run 4.10 gears in the rear and in 2nd with the trans. I ran a turbo 350 and the final drive was a 6.23. It seemed to work pretty good. I used a crower cam , part # 00350. Link to comment Share on other sites More sharing options...
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