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cjcrete

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Posts posted by cjcrete

  1. Yea the main purpose of a cool head is to change the compression ratio, and the ease of machining domes on a lathe vs machining / rechambering a stock head. Cool Heads dont really do much for cooling. Most of the coolant is just circulated and makes its way across the head.

     

    I dont see how it would bennifit a banshee to have the coolant flow from the front of the head to the back of the head.

     

    Here is a little more info, There is another hose routing on lf side into the rear or the cylinder. He must make another cooling port.

  2. Personally I dont get what the problem is here. The banshee motor makes a dam strong motor for flat track. My motor has enough lowend. Im not sure what kinda track you run but you shouldnt be in the low end very much anyhow. Get a 4 mill, Dune port, lighten the flywheel, raise compression, gear and jet it right and your done. Widen, lower it, and install an over ride if you can afford it.

     

    There is no problem here, But there is a reason why thumpers are prefered on a short track - more torq less wheel spin and so on. Its not easy setting a banshee motor up to run short track against a 60 -65hp 450. Don't get me wrong, My non ported shee still kicks a$$ against most of the pro class with my chassis set-up We race short tracks hence the name, top speed around 40-50mph very tight corners short straights! bike is set up great just need some power, and try to control that violent wheel spin!

  3. Hello up 4 sale is a complete motor assy this motor is ready to run and very clean! no carbs or intake everything else is ready to go! I think this motor is around 2001. This motor was just bored .010 with new piston & rings about 8-10 hrs on it! I bought this motor as a spare but never used it. Located in sturbridge mass pm me if interested! thanks 650.00

  4. if you want a tt, short track motor call jim at passion racing. thats where he started his work was building short track motors.

     

    pro quad was at one time ranked with one in all that series of racing.

    9182323950

     

    Thanks for the input guys, Jim is one of the builders i had talked 2 seems 2 know his s&!$

  5. All of the sleeves protrude out the bottom even stock, and if your talking about it protruding out the top putting a spacer plate isnt goint to make the sleeve flush because it will not move in the cylinder? A 4mm can be done with cut domes which in my mind is the best and let the piston pop out the top it doesnt pop out past the rings anyway so it makes zero difference. Another way is using a spacer which is just another place for a leak but will work just fine either way the motor needs to be ported to gain the benefit from the added stroke length.

     

    Ok so whats the positive of stroking a short track motor over a stock stoke motor, its like 1000.00 dollars more to build will you notice a difference in power? More torq? pull harder?

  6. Im a little lost here. He wanted to know how to build a torque motor that pulls hard, so people are recommending Dune ports, 16/38 gearing, and trinity pipes? Im fucking dumbfounded!

     

    I agree on the dune port, not so sure thats what i need! I would like to get this project rolling just need button down my combo and builder

  7. for a very small short track it is very difficult to get a banshee to pull off of the corners like a 4-stroke. You can do it but if there is a budget in mind it generally can't be done. The crank (7MM or 10MM) is a grand by itself. Then you have to trench the cases and then find someone to port and build the stock cylinders to match. I would not use the cheetah or the cub cylinders for this type of motor, I have had both the cheetah and the cub and neither one could compare to the bottom pull of my stock cylinders. I know you can get more top end out of the ceetah cylinders but Iam making solid top end power but the smoothness and torque make up fo it.

     

    another thing to consider is the gearing. Gearing is very critical to getting the banshee to run with the 4 strokes in a small, tight flat track environment. Then no matter what you do to a motor if you can't ride it then you are still going to get your ass kicked by whatever is on the track. If you are racing a pro caliber rider on a 4 stroke good luck but a Banshee in the right hands is lethal on a flat track.

     

     

    Thanks lobo, I agree on the rider & gearing, my set up now always does very well against the competition i'm always running top 3-4 with a piped banshee and a good chassis setup!! Now i'm not running with farr, ogden and little 4 sure but there is some 450's with 500cc's that can run! Does it mean the higher you stroke your bike the more low end you will produce or the other way around? I see alot of 4mils around. and a few 7mils I think with a healthy powerplant under my seat this bike could be danger

  8. I admire what you are trying to do. It may be costly though. A banshee is not happy with anything "short". I'm not saying it can't be done, it just is asking it to do something it don't know how.

     

     

    Maybe there's a reason 2 strokes are no longer a player in the mainstream tt short track wars. Or are they? Lots of r&d into these 4 pokes now Is there any tricks left for the banshee? I just can't seem to let go of these bikes!

  9. Hey guys looking for some imput here, I'm in the market to build a mean reliable short track/play motor. We race on smaller flattracks and need the hard pull coming out of the corners to keep up with those big torq 4 pokers. Some say 4mill some say 7mm, Powervalve motors may be out of the buget. What advantage will a stroker give you over a stock bore? Also wondering about what motor builder? 12 port design? maybe another port design? Short track motors are all together different I need smooth usable power from low on up. I race with a couple of high hp banshee's now (80-90)and they dont impress me much! by the time we hit the corner there power is just starting! no good!! and there power is like a switch! very hard to control. Thanks

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