coryv4 Posted May 21, 2011 Report Share Posted May 21, 2011 ok i have a 89 banshee it has pc pipes agressive trail port 20cc coolhead boyseen reeds 13/42 sprockets and k&n air filter i ride on trails where you can easily go 30 40mph without danger and it just didnt seem it had the power i wanted it was tuned in correctly and i just somehow chipped a ring and im .080over so im gonna get new cyclinders cuz i was told it need to be atleast .020 more over and i was thinking vitos offers a 68mm trail ported cylinders and i was gonna toss in a 4 mil i do have the money for all this so its not an issue i just want to no if a 70hp 421 trail bike is a little to much i also take it up north and theres a couple 5 acre sand spots up there that is legal to ride in i am Not looking to build a straight line bike i just want a midrange torque monster i love to do wheelies and play around Quote Link to comment Share on other sites More sharing options...
Coupelx Posted May 22, 2011 Report Share Posted May 22, 2011 I think you would be happier having a site sponsor doing a ported stock cylinder 4mil. I cant comment on the vitos stuff though, ive never seen them run. Quote Link to comment Share on other sites More sharing options...
BUILDER Posted May 22, 2011 Report Share Posted May 22, 2011 I would agree with Coup. I think for the riding you want to do a 421 is going to be the wrong kind of setup. My stock dune ported 4 mill motor was awesome for that kind of riding. Quote Link to comment Share on other sites More sharing options...
06specialedition Posted May 22, 2011 Report Share Posted May 22, 2011 I agree with the guys above, have a site sponsor on here take care of you. Any sponsor on here builds great motors. Wildcard Racing builds some top notch machines...I personally run a ported stock stroke from them and love it Quote Link to comment Share on other sites More sharing options...
toytech Posted May 22, 2011 Report Share Posted May 22, 2011 I agree with the others. I have a fast racing 4mil dune port and it performs well in the trails I would not want much more for the trails it's still fun to ride with a great power curve Quote Link to comment Share on other sites More sharing options...
AKheathen Posted May 23, 2011 Report Share Posted May 23, 2011 don't forget about gearing...... you are a little on the low side, imo. that just shortens the gears, especially with a low-mid setup. another option, if you want cyls, is a serval setup Quote Link to comment Share on other sites More sharing options...
coryv4 Posted May 23, 2011 Author Report Share Posted May 23, 2011 my cousin has an old mx shee that he use to run in the 450 class it has a 4mil mx port and alot of other random stuff and i dont no if it is just me or if trail riding just isnt my thing but these bikes dont seem powerful enough for me its as if they are missing somthing Quote Link to comment Share on other sites More sharing options...
AKheathen Posted May 23, 2011 Report Share Posted May 23, 2011 my cousin has an old mx shee that he use to run in the 450 class it has a 4mil mx port and alot of other random stuff and i dont no if it is just me or if trail riding just isnt my thing but these bikes dont seem powerful enough for me its as if they are missing somthing well, they are 2-stroke, and generally, are not for lugging down, but they do have tons of power. you should be making decent torque already. enough that you would be looking at suspension to handle it better in the trails. one thing that does come out real prevalent power-wise, is poor state of tune. that will really kill some power, and even blow the motor. i would hit up a sponsor, like wildcard, or whoever you're most comfortable with, and talk with them about it. a stock cyl 4mill, or serval, or something allong those lines could be good for the trails/woods, and general play. about 1200 can get your motor squared, and you can throw more money into the suspension Quote Link to comment Share on other sites More sharing options...
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