i wanna do this, understand that it's going to lose alot of integrety and most likely will fail, but has anyone else done this?
ideas, critizism, past experiences all welcome.
Have not done it. But I did find this guys blog when searching for build ideas for my magnum I have in the works. There is a pic like 3/4 down the page of exactly what your asking about. Maybe try and ask him for info.
Shit forgot the link! http://50cc60mph.blogspot.com/
whoa hoh ho it was Harold, ill expect him to chime in.
i already had 4 oz taken out of the clutch bell, if i do the primary drive does that mean my motor will be very un-balenced because im running a stock (5lb) flywheel/ignition?
will i have to upgrade to HPI?
You are removing weight from something directly attached to your rear wheel. Why not just removing 1/3 of the spokes from the rear wheel instead or add a some weight reduction holes in the rim. You could also find a really light weight chain to run and save weight there.
you gotta be able to see that the output shaft doesn't start spinniing until _after_ the clutch engages. The rotating mass that you want to lighten is the mass on the crank, thats whats spinning. The clutch and magneto would be better places to seek weight to lose.I could see it giving you that extra .01% at the top. but not really.
If you already lightened the clutch bell. Take some weight off the magneto as well as chopping the primary drive you might make some good gains. Have you checked out Treats new Puch cdi ??
Player Made! but I dunno if it is much lighter? About balance of your motor, thats a gamble.
I would be worried about that primary drive failing in one of the unsupported areas. But hey, WTF do I know (not much)
any method to lightening a flywheel?
Replacing it with an aluminum rotor would be the most effective choice.
You can really reduce the flywheel weight by getting an HPI. ha.
^ the mod was done BECAUSE he used a HPI, to balance the inner and outer weight.
yeah true true, HPI's are like 200 bucks tho, that's never gonna happen.
I could never figure WHY Puch beside keeping a gear manufacture in business used the antiquated gear setup whiles american builders already had changed to chains, later on to cog belts. Meanwhile we are stuck w/t noise, stress and inefficiency of the gear drive..
so true, i should make a pedal sprocket into a drive, i wonder how long that would last.
Just hacked mine last week, but haven't run it yet.
I was surprised to find that a plain ol dremel cutoff wheel got through it alright. Only broke one doing the three. I just didn't want to use a full size grinder, slip and take chunks outta where I didn't want chunks gone. I bet the cutoff wheels meant for metal would work lots better...or at least the reinforced ones. haha
glad i saw this thread, meant to get around to doing it while I have my case open, this just worked as a good reminder! yay
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