GRUBDIGGER
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« on: May 02, 2012, 02:37:48 pm » |
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CAN ANYBODY SHARE THE STARTING POINT OF GEARING ON ONE OF THESE? IT WOULD HELP OUT NEWBIES THAT DONT KNOW. I DONT RUN THIS CLASS SO I DONT KNOW.
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JOHN HERRING
ARMA TECH
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conductor_81
THINKING WAY OUT SIDE OF THE BOX/ GOING SIDEWAYS IS ALWAYS FUN
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« Reply #1 on: May 02, 2012, 08:24:13 pm » |
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Grubby I started out with 8" engine pulley and a 5" trans 9 tooth trans and 32 tooth axle is where i started it work with my set up on our track ive had to change for other tracks. I also run a 3speed peerless trans.
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Keith
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trbinrat
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« Reply #2 on: May 02, 2012, 09:27:17 pm » |
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Ah The old where do I start gearing question.
We were running on a 450' track with 120' straights. I started out with a 13 and a 44 but some had 15 and a 46 and I ended up with a 14 and 44. At the end of the year we all had different gearing and we all were running nose to tail.
The big factors are mower weight, driver weight and motor. Even with a governed engine in modxr the engine makes a difference we had to mostly identical machines but one with a Tecumseh and one with a briggs. Neither could run each others gear and be competitive
So my best guess would be 13 to 15 and 42 to 46
Mark
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« Last Edit: May 02, 2012, 09:29:48 pm by trbinrat »
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GRUBDIGGER
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« Reply #3 on: May 03, 2012, 03:36:10 pm » |
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WORKS FOR ME. I THINK THE NEWBIES WILL HAVE A STARTING POINT NOW. AFTER THAT ITS ALL UP TO WHAT THEY HAVE LEARNED. THANKS FOR THE INFO.
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JOHN HERRING
ARMA TECH
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conductor_81
THINKING WAY OUT SIDE OF THE BOX/ GOING SIDEWAYS IS ALWAYS FUN
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« Reply #4 on: May 03, 2012, 10:59:14 pm » |
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I hope the info helps people out. Gearing can be kind of tricky and mind racking.
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Keith
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Flipper
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« Reply #5 on: June 01, 2012, 08:42:07 pm » |
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Nothing is set in stone for Mod-X-R, seems to be defferent for everybody.......
here's Mine
Racer # 1
6" to 4" 15 tooth to 40tooth
700-023
Racer # 2 (this one is faster than snot on a big track)
5" to 3" 14tooth to 28tooth
700-026
Racer # 3
8" to 5" 14/15/16 tooth to 40tooth
700-039/700-050 hand made special hybrid tight ratio tranny
Racer # 4
6.5" to 4" 13/14tooth to 36tooth..........and this one cleans my clock weekly on a big track.
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GRUBDIGGER
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« Reply #6 on: June 03, 2012, 03:09:14 pm » |
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YOU ARE FULL OF INFO. SOME OF THAT GEARING IVE USED IN THE PAST WITH A HOT LICK ENGINE. WOW! THAT TAKES ME BACK! 
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JOHN HERRING
ARMA TECH
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russell jennings
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racing mower addict!!
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« Reply #7 on: June 04, 2012, 09:26:40 pm » |
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mine is 6.5 to 4, 700 trans, kohler cv15s (torq monster) 15t front,41t rear.
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829m
44mxr
928ss
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GRUBDIGGER
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« Reply #8 on: June 05, 2012, 06:19:23 pm » |
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THANKS GUYS, FOR ALL YOUR INPUT. I HOPE THIS WILL HELP ALL THE NEWBIES. 
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JOHN HERRING
ARMA TECH
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