Perfomance Pipe Options

KidDynomite · Post by **KidDynomite** » Wed Mar 28, 2007 8:35 pm

I've misplaced my favorites tag. I thought this might be a good place to share information. If you know of a compatible pipe for the Buddy please attach a link in this thread. We can compare and contrast. I'm being selfish. I'll be looking to add one on my scoot soon.

I'm aware of the prima, but aren't there other options for the PGO models out there?

Thanks in advance.

rajron · Post by **rajron** » Wed Mar 28, 2007 9:39 pm

I e-mailed PGO about a new exhaust, who forwarded it to Genuine, and Genuine said buy the Prima.

sparty · Post by **sparty** » Wed Mar 28, 2007 11:00 pm

There are a few threads about it. I am interested on getting one, but I couldn't figure what the real improvement is. Would it allow a sustained speed of 75 mph?

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Corsair · Post by **Corsair** » Wed Mar 28, 2007 11:22 pm

Here are some PGO pipes

x-mojito50mod · Post by **x-mojito50mod** » Thu Mar 29, 2007 12:12 am

Or, if you want to do a little metal work, there are any number of slip-on/clamp-on aftermarket pipes made for 4-stroke dirt bikes that are usually tuneable in a range (say, 100cc-250cc). Supertrapp, FMF, DG, etc. all make them, you just have to find one with the same core diameter as the Buddy's head-pipe (which I think is 1.125", but I haven't used a real measuring method, so don't quote me on that). I've been researching this too after seeing that little Supertrapp Keys has on his. Plus, I like the idea of these "offroad" silencers being small and light... and I like 'em loud. The Prima looks pretty, just too big, IMO.
-M@

Post by **ericalm** » Thu Mar 29, 2007 12:35 am

Keys put a Supertrapp on his but reported no increase in top end. Brappy, though.

Keys · Post by **Keys** » Thu Mar 29, 2007 6:59 pm

Brappy AND improved bottom and mid-range power.

To fully realize an increase in top speed, you'd need to not only increase the power output, but also change the gears in the final drive to a taller ratio. The fact is, that no matter how much power your engine is putting out, it can only spin so fast. More than that and stuff starts breaking. The answer is build the power, then use the taller gears to adequately use the new-found power. What I DON'T know is if taller gears are available for the Buddy/My Bubu/Ligero. The downside of taller gears would be decreased acceleration.

And no, sustained 75 mph is not going to be attained with a 125 automatic scooter without serious money being involved.

--Keys

x-mojito50mod · Post by **x-mojito50mod** » Thu Mar 29, 2007 11:05 pm

Keys, that's all I was hoping for. I know the whole gear trick from my 50cc. I just want more power off the line/midrange, not top end...I barely get to use the top end I have, since I don't take it on the freeway. BTW, am I right with the core diameter?
-M@

Keys · Post by **Keys** » Fri Mar 30, 2007 8:45 pm

Y'know...I never measured the core diameter. I had the 'Trapp...I slipped it on and it fit. I just lucked out. Sorry, man...I shoulda measured while I had the chance.

--Keys

Post by **ericalm** » Sat Mar 31, 2007 3:19 pm

Keys wrote:To fully realize an increase in top speed, you'd need to not only increase the power output, but also change the gears in the final drive to a taller ratio. The fact is, that no matter how much power your engine is putting out, it can only spin so fast. More than that and stuff starts breaking. The answer is build the power, then use the taller gears to adequately use the new-found power. What I DON'T know is if taller gears are available for the Buddy/My Bubu/Ligero. The downside of taller gears would be decreased acceleration.

With the CVT, I don't think you need taller gears; heavier or mixed roller weights and maybe a variator upgrade will do the trick. Generally, heavier weights = higher top end, lighter weights = better acceleration, mixed weights = better mid/more power on hills, etc. And, from what I've been reading on MV, lighter or mixed weights may not significantly cut your off the line speed. Once riders get to the point when they need to start replacing rollers, I'm hoping some will experiment with this so we can hear if there are any benefits.

I've read a few online explanations of how all this works, but still only have a rudimentary understanding, esp. because I have yet to take one apart. But I can post the links for anyone who wants 'em (just gotta search for them).

Still, for those looking to attain ultimate Buddy high speed nirvana, I don't think this would add more than 3-5 MPH. There's always that forthcoming cylinder kit.

Keys · Post by **Keys** » Sat Mar 31, 2007 4:03 pm

Yes, changing the weights can help and make moderate changes, but nevertheless, the engine is still able to spin only so fast, therefore making the CVT able to spin only so fast. The weights only allow the CVT to make the most use of the engine's maximum RPM. The final solution is still the final gearbox. IF you have the power to pull the taller gears when coming off a dead stop.

--Keys