Gearing and LiPo combos....

boostjunkeee

Member
Messages
5
just got the new XS VGJR edition, run it on 2s and standard gearing and can hit 35mph (GPS) on grass.

I have the 60T and 24T that HPI recommend to run 3s off road, (would this be faster than standard gearing on 2s?) I still need to buy a 3s LiPo otherwise would test myself but have spent funds on a savox servo, HD cups and wheelie bar.

Question is anyone geared up to 32 or 34 on the pinion on 2s and tested speeds and temps?
 
Messages
5
Location
New Hampshire
Sorry for the late reply, but just this weekend I swapped out my 56T idler gear for the larger 60T. I left the 28T pinion in for now... I'd ordered a hardened set of pinions (24, 26, 28, 30) but after ordering I read a post about hardened gears shredding non-hardened gears so didn't want to risk it. Although it was a slight change to final gearing ratio, it seemed to make a big difference running on grass.

I tried to run it with 3S at this gearing. Even with ESC punch set a few notches lower than standard it still wants to backflip on 3S. After a few 3S speed runs the motor was getting hot, though the ESC fan runs 50% faster with a 3S battery so that seemed ok (albeit loud). Unfortunately, I just couldn't keep it straight enough to get a good trajectory for the speed gun. I've installed the recommended Traxxas servo but it didn't make a noticeable steering improvement. There is so much slop in the front, I'm going to install shims around pins to remove some of the play between the plastic parts.
 
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