GSXR 750

Posts: 4 · Joined: 17 Aug 2007 Posts: 4 Pictures: 0

I have a Joyner 1100 and it does OK in the dunes. I was thinking of putting a GSXR 750 engine in it, any thoughts? Anyone ever put a different engine in the Joyner? Now I know that the hp is about double, but do you think the GSXR engine would perform better with a smaller cc engine? I am very much a beginner when it comes to engine's so any help would be great.

Thanx in advance

Hawg

Posts: 62

Horse Power is great, but torque is what gets you off the line. You need to compare the Joyner 1100 and the gsxr 750 torque curves. The Joyner 1100 engine was designed to move a much heavier vehicle than the gsxr 750 was designed to move. You have to get moving before the additional horse power can do you any good. I am not an engine expert but I would be very careful exchanging a smaller bike engine into a Joyner (known to be strong, but heavy). Do some research and good luck!
Clint

Posts: 341

You also need to figure out how your going to transfer power to the wheels ie: transmission or reverser.. That's a real head scratcher for most street bike swaps.
Team Moto makes a real cool direct drive reverser for the conversion, they also have one with hi-lo gear for desert or dunes.

If your a true beginer you might want to find a friend with lots of tooling and mechanical experience .

Good Luck

Later W.C.

Posts: 102

Before you do anything, make sure you have the time and money to deticate to it. or youl be left with a usless buggy...

Posts: 40

I would go with a GSXR 1000 for the dunes. The 750 would move you but the 1000 has a bit more torque that you need. I have a 1000 in my buggy. It is a Chinese frame and it moves it really well. I preran the race course out in Plaster City before the New Years race and it pulled though the washes without even sweating. The only thing that is different about driving it and a regular buggy is the gas pedal is very touchy. The motor rev's so quick you will be going though the gears pretty easily. As far as transfering power you have to options FNR also known as a gearbox or bearing carrier. FNR stands for forward neutral and reverse. So you get reverse out of it or the bearing carrier you get the most power to the wheels but you dont have reverse. As for the FNR's I would stick with the RPM or Jeffco. They are proven reliable. But they do have a steep price tag of $2,500.

Posts: 341

Hey SeufererMotorsports got any pic of you 1000cc in that buggy?
I 'am doing a 07' 1300 Hayabusa with a team moto direct drive reverser in a GK-32 and Im always looking for good ideas.

Thanks W.C.

Posts: 40

Here is a link to where I have some pictures of it. You have to have a lot of room to mount your engine sideways and have the direct drive after it. I know my engine bay doesn't have that much room. Let me know how the Team Moto box works. I was wondering how they work. There was one guy I know of that ran a simular(sp?) box that kept having problems with it and finally switched to a Jeffco. I run the RPM and it has worked out really nicely. I know those boxes are under a lot of stress and you need a pretty well machined box to handle that much power.

http://www.minibuggy.net/modules.php?name=Forums&file=viewtopic&t=2696&star t=60

Posts: 206

It may be cheaper and easier in the long run just to put a turbo on it. You'd be getting about 100hp out of it, not to mention the added torque. It seems like all of the bike-powered buggies I've seen have to be wrapped out all the time to go anywhere. I guess that's fine hauling across the dunes, but not much fun anywhere else.