01 RAPPY 660

300MPH!! LOL no ive had my slightly modded rappy 74MPH which is the factory restricted speed.

6 hours ago, quadmaniac said:

LOL...that's funny. 

Don't laugh it's the TRUTH lol.

I ride on paved roads, up and down hills, anywhere my wheels FORCE me to go What it does for me pisses off my neighbor's and police and FORCES me to buy more gas. 

i finally broke down and got new 31x15.5x15 tractor stye tires for the rear on my Rail $617 LATER LOL! I think ill stick with tractor style tread tires they might be rough as f**k on the road but they take me anywhere i want to go off road...

Go with itp mudlites. I just put on a complete set on my grizzly 550. didn't break thee bank at all, 500$ done. and theyre 26x10x12

just my suggestion,

i run tractor style tires on my Rail Buggy and dude they hook the fu** up!

Not sure. How would I find out?

read your owners manual or call a local dealer

is there a oil censer on your quad?

if money is no issue, and your mechanicy inclined, get you a crotch rocket engine and modify the chassis

No it was more like :partyc::cheers2c::cheers2c::cheers2c::cheers2c::partyc::cheers2c::cheers2c::cheers2c::pukec:

have fun my CRAZY friend!

congrats wylde1 i bet your

Talking about speed my daughter was riding my prairie 650 and her sometimes friend wanted to race with her Honda 250 rincon. My daughter was smart enough not to race. I think God she listen when I said be careful and don't do anything stupid. If the friend wants to know how bad an old 650 is me and her dad can drag'em and she can watch from the sidelines.

yes i agree hi speeds, heavy quads and younger kids do NOT mix!

119mph is COOKIN !!! Mine get alittle squirelly over 70 !!

lol yea i was more scared of my front tires blowing off the rims they got TALL and skinny!:shock2:

i have 5 years worth of dirt wheels mag in my room.

No. A 421 with Cheetah cylinders wont touch 14k let alone 18k... Either way, it's not possible.

i meant to sey 10,00 not 18,000

since you do not seem to understand, iLL TAKE YOU TO SCHOOL...

i ran a 16 tooth front sprocket

i ran a 30 tooth rear sprocket

this gives you a 1.875 ratio with 20'' rear tires

the banshee's Primary Gear is 2.869 this is at 10,000 r.p.m's for a built banshee.

Yamaha banshee Gear ratios are as follows

1.st gear ratio is 2.461

2ed.gear ratio is 1.812

3erd. gear ratios is 1.500

4th. gear ratios is 1.250

5th. gear ratio is 1.045

6th. gear ratio is 0.875

so technically speaking it would run 126 mph, this minus the tire friction and wind speeds produced there for i ran 119 mph and not the full 126.

i know i ran 119 mph on my old banshee, I SAW THE RADAR GUN WITH MY OWN EYES... rather or not your agree i can care less. I KNOW WHAT I SAW...

as far as the 421 Cheetah cylinders, i have only been told this and have not looked it up for my self.

my bad on the 1800 i meant 10,000 rpms. yea 1800 is NOT gonna happen on a banshee LOL

No. A 421 with Cheetah cylinders wont touch 14k let alone 18k... Either way, it's not possible.

i know i ran 119 mph on my old banshee, I SAW THE RADAR GUN WITH MY OWN EYES... rather or not your agree i can care less. I KNOW WHAT I SAW...

as far as the 421 Cheetah cylinders, i have only been told this and have not looked it up for my self.

yes IF i ran those ratios of course, i went down like 8 teeth on the rear and up 2 on the front. It's not like 2 strokes are hard to get more revs out of anyway...

the max rpm's for a bone stock banshee is 9000. But it all depends on your modofcations. Banshee's with the power valves like the 421 cheetah's will rev up to 18000 RPM"s

I do hope you understand your motor would have to rev up to 13,100rpm to reach that high of speeds with that gearing ratio.................

yes IF i ran those ratios of course, i went down like 8 teeth on the rear and up 2 on the front. It's not like 2 strokes are hard to get more revs out of anyway...

Calling you out on this... What tires, gearing, and RPM were you pulling to make this happen?

20inch box tires, geared down on the rear sprocket and up on the front sprocket. a good friend of mine is a sheriff and clocked me on several runs, 119 was as fast as i could get it.

Going down or up 1 tooth on the front sprocket would be equivalent to going up or down 3 teeth on the rear.

i had a heavily built banshee topped out at 119 mph

no problem

so your getting good spark and gas correct? do you have good compression? reed valves stuck? flywheel key sheared? engine case gaskets leaking?

WOW sounds like Greenfield Motor sports where i live, their not to smart for being certified people!

if u can put a heat shield of some sort between the engine and your tank to keep the gas cool.