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Big Block Talk! Everything about swapping a big block engine into your cart! |
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02-24-2011, 03:40 PM | #1 |
Gone Wild
Join Date: Jan 2010
Location: Lakeview, Ohio
Posts: 261
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High Speed Gears G9
Anybody put the high speed gears in a Yamaha G9? I'm thinking about it. I know I won't have problems with torque because I'm using a Briggs 18Hp. Is it hard to do?
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02-25-2011, 11:28 AM | #2 |
Admin/Moderator
Join Date: Dec 2006
Location: Ohio
Posts: 18,047
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Re: High Speed Gears G9
I've never done it but don't think it would be too hard.
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Ron
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02-27-2011, 05:50 PM | #3 |
Vegas modded 420
Join Date: Jun 2009
Location: West MI
Posts: 15,443
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Re: High Speed Gears G9
I did a club car, the trans looks similar. It was not that hard in fact I put some new bearings in too that one had run out of oil. It ended up getting the same speed as a lifted cart with 22s, but it was all stock.
What I did was pull the entire rear out its not that hard. Then stood it on the passenger wheel and pulled the driver axle off, then the cover, remove the gears noting exactly how they go in, clean the box out if you need I had to flush mine, then put new parts in, inspect for fit, put cover back on and seal, put axle back on, install trans, fill with oil. I'd recommend you pressure wash it first, of course drain it first. I don't know if the yami can be done exactly the same, but the CC rear stood there on the wheel the whole time it was nice. If you don't run the governor you might want to remove it. I have the manual here, it says take the muffler/cables/clutch off then take each axle off, then remove the trans. To get into trans remove governor arm, c clip on input shaft, and a plug you loosen at bottom of case. Then split case. |
03-01-2011, 12:04 PM | #4 |
Gone Wild
Join Date: Jan 2010
Location: Lakeview, Ohio
Posts: 261
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Re: High Speed Gears G9
Thanks guys! I have to save up my nickels to get them. Once I do, I'll let you know and post pictures for all to see.
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03-01-2011, 10:30 PM | #5 |
Vegas modded 420
Join Date: Jun 2009
Location: West MI
Posts: 15,443
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Re: High Speed Gears G9
With that old CC it had good torque, with stock tires I was getting rubber all over the yard with it at around 15-20mph. It was funny, felt 200% faster I can tell you that. I expect a lifted cart to go faster this was a sleeper.
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03-02-2011, 09:23 AM | #6 |
Gone Wild
Join Date: Jan 2010
Location: Lakeview, Ohio
Posts: 261
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Re: High Speed Gears G9
I used the golf cart speed calculator and it said with the 8:1 gear ratio that I should get around 31mph at 3600 rpm. Thats fast enough for me especially in a lifted cart.
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03-02-2011, 09:40 AM | #7 |
Gone Wild
Join Date: Feb 2007
Location: Southwest Georgia
Posts: 1,469
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Re: High Speed Gears G9
We find it much easier to leave the rear end in cart, Usually takes about a hour to install in most carts.
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03-02-2011, 09:57 AM | #8 | |
Vegas modded 420
Join Date: Jun 2009
Location: West MI
Posts: 15,443
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Re: High Speed Gears G9
Quote:
The cart is lifted? What tires, I get 30mph with my G9 on pavement, gps, tires measure 23", stock gears, but it hits 4800rpm or so and takes a while to get there. The CC had a limiter it would not rev that high. |
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03-02-2011, 10:05 AM | #9 |
Gone Wild
Join Date: Jan 2010
Location: Lakeview, Ohio
Posts: 261
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Re: High Speed Gears G9
BGW has a golf cart speed calculator that you enter your rpms, tire height and gear ratio.
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03-02-2011, 10:46 AM | #10 |
Vegas modded 420
Join Date: Jun 2009
Location: West MI
Posts: 15,443
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Re: High Speed Gears G9
Are you the one with the opposed 18hp? If so gears might work well as that likely does not want to rev too high...or I would not run it that hard anyway. They have piles of midrange torque though. And if you run roads mostly lot of people put gears in to reduce rpm. I run wooded trails, climb hills more, so grunt is really important.
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