Im thinking I am going to run out of gear in the 1/4 mile.
building the turbo banshee motor. what are some of you big dogs running in the 1/4 et and mph? What gears are you running etc...primary....front/rear and tire size.??
Thanks!

19,38... with a 1-5 over ride with a 10 mm cub. stock primary ratio. not sure on tire size...
what kind of power u seein out of ur turbo banshee?

Rick, no disrepect meant here, but we run a 19-39 with the 4mil for the 1/8th, and it's completely done at the 1/8th mile. IMO you need a 1-4 shifting 5th and 6th, or a 1-6 to run a good 1/4 mile time and speed.

Sorry, I thought I remember hopper tellin me thats what he runs on asphault. I thought he ran quarter mile but he must run the 1/8th mile.

Small Motor = 10 mil cub no adders 19 38 1-6 over ride 1320' 20" rear Tires 10.61 at 115 MPH This wasn't set up for it or dialed in for it..........

so, 115mph with 19/38 with a 6 speed.... you red lining in 6th at the line? 20 inch tire...my rear wheel is like 24"tall


I think I can get a 19/34 setup with the 24 in wheel.. guess ill try that adnd see where I end up at.

I have a bad feeling about this... does anyone make a less than 2.36 primary?

Not running yet, still working on the chassis...

We run 1/4 mile with our quad and go deep into the 120s mph wise. Most of the time we use a 17/36 with a 2.86 primary ratio and 20" tire. The biggest problem with the quad is aerodynamics. It should be a little easier in a bike frame.

Basic number crunches.

10,000 rpm
19/36 sprockets
2.86 primary
24" tire

150.03 mph!

exactly...thats what I came up with for my calculation...about 160mph.... with 2.36 gears though... Ill try it out and see how it works.... based on a guess, im sure it will trap at 150 plus MPH... probably much higher... if it stays together for a run LOL

No still pulling at the Traps.
I wasn't planning on running the 1/4 mile it just worked out that way. I went to run the 1/8th on a 1/4 mile Track. They were giving Times for the 1/4 mile so I went for it.

We have run 115mph at the 1000ft with the 19-39 gear and 20" tires in 5th. It was DEFINITELY in overrev though.

I cant wait to hear how it turns out!! I have thought about trying to get ahold of an old RZ or maybe even a Ninja 250 roller to setup my cub in. The 600 and 750cc bike class wont let us wheelers run with them (because we outrun them lol). I figure if I had a 421cc motor then they would be up a creek ha ha.