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Gas EZGO Gas EZGO Marathon, Medalist, TXT and RXV. |
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02-08-2022, 04:01 PM | #11 |
Not Yet Wild
Join Date: Oct 2021
Location: England
Posts: 46
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Re: Diff Durability and gear ratio question
Nice project, I farm in the uk.
I am converting a G1 to electric, the diff is 8:1 I have geared it down to 10.5:1 My electric motor should do 6000rpm so that’s 30mph with loads of torque. Build has been a bit slow but battery gets here early April from China, should have it ready to go by then. Looking forward to your final pics. It’s amazing how we farmers make things work! |
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02-17-2022, 11:44 AM | #12 | |
Gone Wild
Join Date: Jan 2013
Location: Saint Petersburg, FL
Posts: 2,089
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Re: Diff Durability and gear ratio question
Quote:
If you leave the engine where it is you'll have to come up with a sturdy spring tensioner system. It has to be flexible enough to handle full compression of your springs but strong enough to instantly respond to the chain slack. When I went through the process for me it was easier to move the gas engine to a different location. But every build is different. Truthfully though I've never had good luck with chain tensioners on any home built project but on the other hand every multi-speed bicycle in the world uses chain tensioners successfully... When I did my cart conversion I didn't have an electric motor either. I went to the golf cart repair guy up the street and there he had several old motors. I was able to pick up one that had been collecting dust for a long time for $20. You'll need to know your make and year of cart, or just bring the serial number. --- Side Note --- You may find more information in the https://www.buggiesgonewild.com/forumdisplay.php?f=91 subforum. It has a lot of stuff about people putting aftermarket gas engines in carts. |
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04-03-2022, 04:44 AM | #13 |
Not Yet Wild
Join Date: Jun 2021
Posts: 14
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Re: Diff Durability and gear ratio question
I have finally found the time to get some of this sorted. It’s moving under its own power with the stock diff: unfortunately my calculations were off by for the quad engine gear ratios. It’s currently a crawler. The quad gearbox has a primary reduction of 3.33 which I didn’t multiply into my math. Top speed is round 15mphr in 4th at 6500rpm.
Here are some photos of the extended axle shaft and I have sorted a chain tensioner which isn’t pictured: Now I need to work out the brakes: I removed the pedal assembly early on in the build and I must have threw it out. ****. Ran into another fence because of it stalling on a hill. Thanks and I hope this helps someone else down the track. |
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axle, dana differential, gears, power rear |
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