rotax 399 in a hard tail

[bcredneck]

i got a motor belt and jack shaft from a 70 skidoo tnt the sled was crazy fast on grass but the track ripped in half and i got a trimoto 175 frame with the front cradle cut out
i was thinking about building a bad @$$ hard tail manly for ripping on flat gravle roads
has anyone tryed this id like to see pics of a similar set up before i even start if anyone has any

[bcredneck]

basicly this and this

[bcredneck]

except my stuff is crap

[dcreel]

except my stuff is crap

I find that hard to believe... I kid, I kid..

[bcredneck]

i had the spedo on the sled in the 90s before it broke dont know if it was accurate but if the trike has a 3rd of the weight it should go faster than you would want to go on a hard tail personally i think thats a good thing

[ezmoney1979]

i got a motor belt and jack shaft from a 70 skidoo tnt the sled was crazy fast on grass but the track ripped in half and i got a trimoto 175 frame with the front cradle cut out
i was thinking about building a bad @$$ hard tail manly for ripping on flat gravle roads
has anyone tryed this id like to see pics of a similar set up before i even start if anyone has any

Yeah 24hp, must have been a rocket

[bcredneck]

the tnt was 30 hp because the tnt had a diferent carb than a normal 399 it revs up to 10000 rpm many grassdrag sleds have used this motor with moded headers

[bcredneck]

on sleds one pully get bigger the other gets smaller as the rmps go up basicaly a fully auto tranny i love this setup its also tuneable so i can make it hit top speed right in the powerband

[bcredneck]

a rotax 399 is one of there rarest motors this would be good if i sold it but bad when i brake it

[bcredneck]

a brand new crf 450 has 43 hp so it has less power but it has a has a higher top speed on the sled

[Xfile]

the tnt was 30 hp because the tnt had a diferent carb than a normal 399 it revs up to 10000 rpm many grassdrag sleds have used this motor with moded headers

10G with breaker point ignition?

[dcreel]

Not to mention that the YT doesn't have a front cradle. The motor is under the seat mostly.

[Chazz of Blades]

And the fact that due to carrying three massive chunks of something that makes boulders look like Jenny Craig, you're probably going to top out at about 25 mph with the 399.

I really, REALLY, really, wouldnt even try to put THAT in THERE(yes, that IS what she said). I think you're trying to show me up on the whole deathtrap ideas.

[bcredneck]

iv actualy been planing this for a long time and yes it has points i put much stronger springs when i rebuilt the motor 3 years ago if you think it will only go 25mph youve been smoking some thing look on youtube and see what these motors are capable of on a 450lb sled it dosent mater that the front cradle of the frame is gone its going to be rebiult with square tubing to fit the motor ive seen dune buggy with a 340 go fast let alone a 399 in a striped down trike its not going to be a death trap eather
the motor and the rear end both have brakes and it wont be intendid fo rough roads just for running flat out on graded roads

[bcredneck]

Not to mention that the YT doesn't have a front cradle. The motor is under the seat mostly.

whats holding the front of the motor in then look at the pic i posted the only trikes that dont have lay down motors edit:sorry i didnt see the pastic covering the frame ill find a differnt pic