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Post by torinoman on Nov 4, 2024 8:30:15 GMT -5
One of the main reasons I went with the TT was to keep the RPMs down. In doing so, I kinda limited my top speed I think. Everything is a compromise! Different scoot and build than mine, but still helpful info.  |
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Post by torinoman on Nov 4, 2024 9:20:03 GMT -5
I see on the two stroke exhaust database for the page (https://49ccscoot.proboards.com/thread/1391/stroke-exhaust-database) the TT is is showing 9k rpms. I'm sure it depends on the cylinder being used.
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Post by aeroxbud on Nov 4, 2024 11:28:26 GMT -5
Yes platform to platform will vary slightly. But it's a good comparison still.
It's always interesting to note that with the air cooled cylinders. Polini makes more power than the Malossi generally. But when it changes to liquid cooled motors. The Malossi comes out on top.
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Post by torinoman on Nov 12, 2024 10:48:27 GMT -5
So here's the setup I settled on for now with the Malossi MHR over range kit -7 gram rollers -Yellow Malossi contra spring -Slower shifting grooves (the longer ones) in torque driver -5700 to 6k rpm clutch engagement Changing the grooves in the torque driver yields about 3-400 RPM on my particular build. Red to Yellow contra is about 500 rpm. This all is giving me 8500 rpm while climbing and shifting out. Tach is rock solid. No change in rpm. No spike anywhere. Getting around 55 mph. After that, there's just too much wind to push and it runs out of power. Basically same as before the over range install, but 1000 less rpm at 55. A little better take off and wheelies are effortless. Feels pretty good overall. Probably not $300 good, but it's done now. I did hit 64 mph on a big hill and stayed under 10k rpms! Thanks again everyone for the advice and comments on this stage of the build. I've attached a pic of my beautiful case grinding to clearance the belt.  |
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Post by torinoman on Nov 12, 2024 12:11:29 GMT -5
the machining will be similar the oversize pulleys will rub the case in a few spots a Dremel or sand paper can help you just get enough room to handle the larger circumference . They usually have spacers /shims with the kits so you can have them spin freely on the drive shafts . yes you can put the electric start back on if you ditch the overrange . I have done that myself so I could get one closer to stock when I sold it Hey Zino. I Haven't pulled my starter off yet, but probably will soon. Is there anything I need to do with the wiring? Ground wire or anything that will cause an issue? |
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Post by Zino on Nov 12, 2024 18:45:07 GMT -5
I left the wires on they are on the outside of the transmission case
I just removed the stuff inside the transmission case .
In my build thread you can see what I removed
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Post by torinoman on Nov 12, 2024 19:37:34 GMT -5
I left the wires on they are on the outside of the transmission case I just removed the stuff inside the transmission case . In my build thread you can see what I removed You had a bugeye though, right? I know that starter is in a different spot. |
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Post by Zino on Nov 12, 2024 22:17:19 GMT -5
yes I had a bug eye
I will have to look around to see if I have the overrange instructions .
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Post by torinoman on Nov 13, 2024 8:31:23 GMT -5
yes I had a bug eye I will have to look around to see if I have the overrange instructions . I'm sure I can figure it out once I start messing with it. May not be anything more than just pulling the starter motor itself off and terminating the wires. It seems like I heard somewhere that you had to run a chassis ground once the starter is removed. That may have been on a different scoot though. I'm not really finding any info on needing to do that to a Zuma. |
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