Gear ratio chart - Bob's 4 Cycle Karting
2020年6月22日 · I understand no gear rule in new class, just giving you a heads up not to compare gearing now going to need based on your old gearing under a gear rule, there is no chart that will give you the info your looking for, there are ratio charts that give general info on ratio relations alone, as far as proper gearing some general info on helping figure out starting …
Mini gear and driver setups? - Bob's 4 Cycle Karting
2020年11月13日 · We successfully ran mini drivers on a jack shaft UAS racing. Did it for 3 reasons. 1. Reliability 2. Acceleration and to reduce r
Jackshaft gearing - Bob's 4 Cycle Karting
2019年6月28日 · With it you get to look through columns of different clutch and axle gears for a close ratio match or to go with a little more or less gear. We ran mini gears on the axle which is why the small axle gears in the first chart. The only change I made to get the second chart was to put 53 into the 'green' axle gear input and hit enter.
gearing? - Bob's 4 Cycle Karting
2018年2月3日 · Some people say there is a difference in how the kart reacts to different driver/rear sprocket combos even thou the overall gear ratio may only be less than a 10th different on the chart. Is there any easy explanation why this would be, seems if the track/motor needs a 4.00 ratio it shouldnt...
Mini gears - Bob's 4 Cycle Karting
2021年10月29日 · I bought it because a certain track had a 17 tooth driver rule (which is not a disadvantage to a mini gear set up). unless the mini gear is required due to a must have ratio or driver rule I would not spend the money on an entire new set of gears, hub, guards. the weight savings over a PMI 4 bolt hub is negligible as the gears and guards are ...
Choosing the Right Gearing - Bob's 4 Cycle Karting
2020年10月23日 · Comet Karts gear ratio chart is accurate and complete. The only problem I see is it so big, how are you going to take that to the track? With my Excel program "nine sheets", you can change the starting engine gear and/or the axle starting gear and the whole spreadsheet changes. The whole thing will print on a 5 x 8 piece of paper.
Predator Gearing - 1/8th Mile Prepared Track - Bob's 4 Cycle Karting
2019年4月11日 · Is that shaky advice? Should I chase the extra RPM with gearing? Also one last thing - You mentioned the 17 driver would work better for a newer kart driver, 18 for a more experienced smoother driver. What is the logic behind that? IS there a point where you would switch to an 18 with equivalent gear ratio (currently 3.88)
Gearing ? small small or BIG BiG - Bob's 4 Cycle Karting
2014年4月23日 · In 2-cycle sprint kart racing (Al's background; and mine), I've never seen a consistent measurably difference in keeping the same ratio, but going "bigger" or "smaller" with the choice of gears to get that ratio. In "our world", "a ratio is a ratio" is a fair statement to make.
Gear ratio for 1/8 mile oval? | Bob's 4 Cycle Karting
2015年5月19日 · Running a small 1/8 mile, closer to 1/7 mile dirt oval 10 degree banking. 38 inch circumference hoosier treaded tires on a winged kart. Running a stock appearing motor thats 26 hp appox. I want to be at least 7600-7800 rpm in the straights. Kart currently has 11-67 gears. What are your thoughts? Our first time ever running the kart and the track.
LO206 Gearing and RPM Impact - Bob's 4 Cycle Karting
2015年2月24日 · Yes a ratio is a ratio. But the effect a one tooth change has on ratio varies with the sprocket size. 1 tooth change on a 64t sprocket = 1/64th change in ratio (1.5%) 1 tooth change on an 92 = 1/92th change in ratio (1.1%) Extreme example (driver gear) 1 tooth change on a 13t = 1/13th (7.7%)