BlackBeast Posted August 15, 2006 Report Share Posted August 15, 2006 Well, here's the deal... I'm building a quad and I will be completely honest - I don't have a freaking clue what it's going to be capable of. I'm hoping some of you guys have either heard of or seen something similar in action and can fill me in on how quickly I'm going to die on this thing. My old motor was around 400cc and had quite a few mods, so it was defnitely quick. I'm guessing I was in the 60hp range, but no dyno numbers to back it up. The new motor is a 670cc Rotax with variable exhaust and 40mm carbs. The only reason I went with this motor is because I got a smokin' deal on it. I've been told these things put out anywhere from 130 to 170hp, depending on the porting. I'll be running a 10 inch extended swingarm, 2 inch lowering kit, and probably Hoosier 69/10/10's on the rear. I'm not sure what gearing I'll be running yet, so I'm open to suggestions. I know there are a ton of variables to consider, so let's assume everything on the low side. Closer to 120-130hp, no wheelie bar, and probably geared for more top-end speed. Any ideas on what 1/4 mile, 1/8 mile, top speed, or 0-60 times? Anyone? Bueller? Quote Link to comment Share on other sites More sharing options...
race-a-holic Posted August 16, 2006 Report Share Posted August 16, 2006 I don't know anything about these motors but if they are like the crotch rocket motors(probably not),Those hp #'s are probably a little high. Make sure to try and get use to it before it's wide open launches with no clue what it will do.I tried this on my banshee though and still got hurt.Be careful. Quote Link to comment Share on other sites More sharing options...
BlackBeast Posted August 16, 2006 Author Report Share Posted August 16, 2006 Thanks. I'm actually hoping the actual hp numbers will be a little bit lower. As for being careful, I do know my own limits. I can be a knucklehead sometimes, but I don't get too crazy with that sort of thing. -Tim Quote Link to comment Share on other sites More sharing options...
reded Posted August 16, 2006 Report Share Posted August 16, 2006 I'm thinkin you're gonna be in for a fairly thrilling ride. No wheelie bar and stock frame with that much power prolly wont be real consistent. Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted August 16, 2006 Report Share Posted August 16, 2006 is this motor an automatic or are you mating those cylinders to a banshee bottom end?? Quote Link to comment Share on other sites More sharing options...
BlackBeast Posted August 17, 2006 Author Report Share Posted August 17, 2006 This one is mated up to the Banshee tranny, so I'll have 6 speeds of fiery death at my disposal. :shoothead: It was a little squirrely at 95+ with bone stock suspension and street tires. I'm hoping a steering stabilizer, wider A-arms, and the +10 swingarm will help tame it down. It'll be mainly road/track use, but I want to be able to keep up with the mid-sized sportbikes if possible. Quote Link to comment Share on other sites More sharing options...
trex banshee Posted August 17, 2006 Report Share Posted August 17, 2006 holy shit, thats badass post some pics of that thing. If it runs anything like the ones at my local dirt track it should really scream. They run really low 4's to high 3's in 300 ft. Quote Link to comment Share on other sites More sharing options...
BlackBeast Posted August 17, 2006 Author Report Share Posted August 17, 2006 Sure thing. Right now I need to get caught up on some bills, but I'll start a build thread once I start working on it some more. Quote Link to comment Share on other sites More sharing options...
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