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Hey guys, I have a 36cc rovan baja, last run i put on the e-clip wrong and spur gear parts went missing, just wanted to know if alternative gearing would be better, right now it is 17/57.
Thanks
Thanks
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I'd do 18/56 if anything, it will give you a bit more top end . Anything higher then that is probably too much and will lack bottom end.Hey guys, I have a 36cc rovan baja, last run i put on the e-clip wrong and spur gear parts went missing, just wanted to know if alternative gearing would be better, right now it is 17/57.
Thanks
oh ok, i wont bother changing, was just wondering cuz i saw a guy at my lhs runnung crazy tall gearing on his 36.
Thx anyways tho
Hey guys, I have a 36cc rovan baja, last run i put on the e-clip wrong and spur gear parts went missing, just wanted to know if alternative gearing would be better, right now it is 17/57.
Thanks
That weird clutch bell, I assume your talking about a hex style . In which case you will have to buy those from vertigo, they have 17t, 18t 19t, and 20 I believe. As that clutch bell is a rip off vertigo part. I will have to say, you are very wrong about the "you won't see any speed gains" from a gear change. I changed from 19/55 to 18/56 and it was a big difference.I have the same Rovan as you and i'm realizing that in loose conditions the stock gearing is a bit low (meaning a lot of excessive tire spin and tricky to drive). The 36cc engine in top tune is a real screamer and the crappy handling can be difficult to keep the truck tracking straight. Come next season, i'm going to experiment with slightly higher gearing as Z.hb71 suggested. Higher gearing will "in theory" add some top speed (but realistically you won't see any speed gains). What should happen is the slight loss in bottom end torque will lessen the unwanted excessive wheelspin. Gearing is a compromise of either quick off the line acceleration or higher top speeds based upon your preference, (but you can't have both). Keep in mind that Rovan uses a oddball clutchbell pinion drive gear, and HPI Baja pinion gears will NOT interchange. Don't ask me how I found this out.
+1 ?other thing you can do to stop the wheels losing total traction is a lower rate clutch spring?? like a 6k the clutch would be less spooled up on pull off??= less spinning
+1??19/55 to 18/56 and it was a big difference.
I will have to say, you are very wrong about the "you won't see any speed gains" from a gear change. I changed from 19/55 to 18/56 and it was a big difference.
+1 ?
I don't believe it was over geared. Bottom end didn't feel lacking at all, and it reached top speed pretty quickly. 18/56 feels slightly short but livable. As I don't have such a big spot to open It up anymore.So if you saw an increase in top speed with a gear change going from 19/55 to 18/56 this tells me your truck was "over geared" and you did not have enough engine hp to pull the 19/55 gearing. You lowered your gear ratio and gained speed (which was obviously a good call). Gearing 101 theory: Larger tooth drive pinion = higher top speed but less acceleration. Smaller drive pinion = quicker acceleration less top speed. Everything previously stated is reversed when swapping spur driven gears. To come up with a final drive ratio you divide the spur gear by the pinion gear so 19/55 = 2.89 final drive ratio and 18/56 = 3.11 ratio. The higher the final drive ratio the better the acceleration , the lower the ratio the more potential top speed, but again only achieving said top speeds if you have enough hp to pull the higher speed gears. If you already know all this sorry for the long winded reply.
18/56 feels slightly short but livable. As I don't have such a big spot to open It up anymore.
Have got 7.5hp after all ?
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