jr dragster T
New member
Also known as duct tape....
Looks good, i like the engine. That chaincase looks like it came off an old polaris from around 1977. Me and a friend almost took the engine out of the same sled for a go kart, but it needed a rebuild and it was a only 295, but the secondary/gearbox look the exact same.
FUNNY you should mention that!..... Do you have any more info on that sled, like what model is it, etc.? Ed's motor has precious little info on it, and I have for my own use, one of those 295 motors (which looks like a 440 "Mini-Me"). We thought it was a TXL, but from what I understand the "L" in TXL means that it's liquid cooled (?) Then, almost EVERY TX 295 motor I've seen is a "Free Air" motor (no fan, just bigger fins). Thankfully I got the one with the fan.
The fact that it's a 295 won't deter me from using it; my Sachs SA 290 actually does/did pretty good (gotta somehow fix the points on it).
Either way- for such a popular brand and model line of engines, these Polaris/Fuji motors are pretty tough to get specs on. All I know is that the clutch says, "Do not exceed 7500 rpm"
Exactly (Heh-heh.) what we're after. We plan on replacing the front shocks with the rears (a bit stiffer), and relying on the spongy-wheels (like a stinking waterbed) in back for a slight amount of cushion/travel.) Most of the stuff out here is pretty flat, and after Ed's 1st few attempts at jumping this thing (earlier in thread) we've learned this thing flies okay- doesn't do so well on landing!Good work. But honestly, with that much power and no rear suspension, it's going to be a **** ride.
Looks good, Howcome you decided to use the sleds chain case and not just mount the primary on a homemade jackshaft? the way you did it seems more complicated. The motor mounts should be fairly easy. How did you calculate the gear ratios for the CVT? do you have any idea what the max/min ratios are for the average sled CVT?
Those chinese karts have a lot of extra tubing.