Joined: Wed Nov 28, 2007 1:21 am Posts: 4044 Location: Seattle, WA
doonrunr wrote:
...There was a sprocket change in the design of the Joyner 250 from the 37 tooth on 07 to the 43 tooth in the 08s. Bob(eggy) tried to change that spocket before he sold that machine. He was not successful. Others have made the conversion to the larger sprocket and it made a marked difference in the performance level of the Joyner 250. What could only be achieved in low range in the 07s could now be done in high range with the larger sprocket.
Glade
I'm definitely enjoying the lower gearing. What about even lower gearing and 25" tires on all four corners for the next version? There's definitely room for them. I'm seriously thinking of the Buggy Junkie 12t transmission sprocket to run some 25's.
Joined: Tue Mar 29, 2005 4:26 pm Posts: 1652 Location: Rexburg, ID
pghruby wrote:
doonrunr wrote:
...There was a sprocket change in the design of the Joyner 250 from the 37 tooth on 07 to the 43 tooth in the 08s. Bob(eggy) tried to change that spocket before he sold that machine. He was not successful. Others have made the conversion to the larger sprocket and it made a marked difference in the performance level of the Joyner 250. What could only be achieved in low range in the 07s could now be done in high range with the larger sprocket.
Glade
I'm definitely enjoying the lower gearing. What about even lower gearing and 25" tires on all four corners for the next version? There's definitely room for them. I'm seriously thinking of the Buggy Junkie 12t transmission sprocket to run some 25's.
Sure.....there is always room for experimentation. That is half the fun of owning one of these buggys. It never hurts anything to try it......and it just might work out for the better.
Joined: Wed Oct 26, 2005 6:05 pm Posts: 1420 Location: Northern AZ
Another thing to keep in mind is that the quailty control of these engines is not very good. I have personally owned 5 250s and have budies that have owned another 5 and one thing I can tell you for sure is that not all 250s (or 150s for that matter) are created equal. I have had both extreames over the years. I had a New Star that would smoke the tires and run more than 50mph bone stock and Ive had a sunl 250cc that wouldnt break 30 and felt like the emergency brake was on all the time. (it wasnt, we check that and other things and never could get any performance out of that engine). Maybe the 250 kidinme had was just a dud. There out there. Van
_________________ 2005 Joyner 650 Turbo, 8lbs boost 2006 Roketa 300 cc kit, clutch spring, uni and pipe 2006 sunl 1000 2005 Corvair powered 4 seater 2-1985 250sx trikes 2005 250 Joyner DD 6 Polaris Quads 90cc thru 400cc 1915 VW high jumper Lots more small and large toys!
Joined: Sun Feb 24, 2008 12:13 am Posts: 967 Location: Anaheim, Ca.
Well, we didn't do a side by side, but I wanna throw a couple notes out here. On Joyners being slow--Geek's was not. In fact, off the line he might have a little better torque than my 300. I clocked him at 42 mph top end. Of course, I had more to give, but I've never gone over 46 solo. Climbing, both machines climbed whatever we threw at them....except sand, but you knew that already. The Joyner's suspension is far superior on the front end. The rear suspension on the GTR is great. The front has the strut and not as much travel as the Joyner. I see exactly where I want to go with my most, tho. My top end is fine. I'm gonna focus on low end torque mods to get more oomph off the line.
_________________ Carter Brothers gtr 300 18g sliders red malossi main spring malossi delta clutch mrp exhaust mrp 30mm carb k&n filter
Joined: Sun Feb 24, 2008 12:13 am Posts: 967 Location: Anaheim, Ca.
vanet wrote:
Another thing to keep in mind is that the quailty control of these engines is not very good. I have personally owned 5 250s and have budies that have owned another 5 and one thing I can tell you for sure is that not all 250s (or 150s for that matter) are created equal. I have had both extreames over the years. I had a New Star that would smoke the tires and run more than 50mph bone stock and Ive had a sunl 250cc that wouldnt break 30 and felt like the emergency brake was on all the time. (it wasnt, we check that and other things and never could get any performance out of that engine). Maybe the 250 kidinme had was just a dud. There out there. Van
Yeah, well when you buy a new car the odometer doesn't show the testing done before the factory put it out the door. When you buy a new go-kart the odometer shows EXACTLY how much testing has been doneon that motor in that buggy----0.
Btw, to the OP. A stock GTR is geared for climbing. It doesn't have hi/low, but it has a smaller small sprocket and I believe they put 18 gram rollers in there. I'll have to weigh them to find out. With the 18 tooth sprocket they CLAIM an additional 10 mph on top, but it slows it significantly at takeoff and robs it of hill climbing ability.
_________________ Carter Brothers gtr 300 18g sliders red malossi main spring malossi delta clutch mrp exhaust mrp 30mm carb k&n filter
Joined: Thu Oct 04, 2007 4:55 pm Posts: 3115 Location: Murrieta CA.
here are some pics to go with firebird's lil thingy the carter is wider but its shorter then mine my rear suspention is much better now i think not much time on the rzr shocks yet but they seam good
_________________ 06 joyner 250 sand viper red main spring 20 gram rollers rzr front shocks on the rear super trapp pipe
I have ridden a lot of buggies over the last 6 years. Below are some thoughts on the below 300cc class.
The quickest stock buggy I drove was the Dazon 150.
The quickest non stock was a one seater that Baron owned. It was a 150 clocked at just over 52 mph with a 12 year old at the helm. Custom fuel and heavily modded. I believe it was a kasea.
The joyner 250, heavily modded, was only mildly quicker than my heavily modded kpx 150. Low end it was slower, top end more peppy. Mainly due to how heavy it is. The 250 has an awesome suspension.
The HH250. In my opinion, forget about it. That was the most disappointing ride I ever took. For the price I'd take a modded 150.
The only Carter I ever drove was the xtr. Great machine and didn't cost much back then either.
Awhile back I thought about getting a 250cc but after driving a bunch of them, I decided that they weren't significantly better than my cheap 150 modded. For real thrills, I use my honda xr 400. My buggy is mainly for the kids and are safer than quads and bikes.
The thing I like most about buggies that my xr400 does not provide is the ability to make a small ditch in my front yard exciting. I think you all know what I mean.
Heath
_________________ 2005 Xterro
Redneck Uni Intake, modified steering, gutted exhaust, 22 inch front tires with 10" custom rims, hot cam, shaved head.
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