00sheerzr Posted January 14, 2010 Author Report Share Posted January 14, 2010 we mostly ride trails and im worried about straight line racing, ive been riding since i was 7 and this his his first quad and he started riding dbikes 2 years ago, so im not worryed about him on a track just because he doesnt know how to handle that much power, im planning on sending my cylinder out to get ported and honed, i just compression tested bith side on warm motor at 115 psi, i really dont want to spend another 200$ on pistons so i might just hone and new rings and wristpin bearings and such , what do you guys think should i be fine doing that, i really cant spend much money because i want a new car soon Quote Link to comment Share on other sites More sharing options...
J-Madd Posted January 14, 2010 Report Share Posted January 14, 2010 As long as your pistons aren't worn too bad you're probably fine re using them. Check the wristpin journal (our whatever its called) for excessive wear, and look for cracks or any damage to the skirts. Best of luck beating that 450. They are effortless to ride compared to a Banshee, imo. Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted January 15, 2010 Report Share Posted January 15, 2010 I would just build a dune ported 4 mill and not say a word. Run a cool head so he cant see the spacer plate. Quote Link to comment Share on other sites More sharing options...
wacko2000 Posted January 15, 2010 Report Share Posted January 15, 2010 I have a YFZ and a shee My shee has a decent amount of work done to her, and will smoke the YFZ all day, but still the 450's are no joke. If you are looking to take this to a track with your buddy and you are both good riders, and skill level is the same. You are gonna have your hands full Even if you do hang with the 450, its gonna take just about every last drop of energy you have in your system. the yfz is a smoother more gentle ride than the shee. If you just want a solid, strong running shee, listen to these guys here, they know there shit. Bump the compression, advance the timing, do the reeds/pipes and maybe if you wallet can handle it all at once some porting and it will be night and day. good luck and keep us posted Quote Link to comment Share on other sites More sharing options...
rubberneck Posted January 15, 2010 Report Share Posted January 15, 2010 Good points, my mind always goes straight to drag racing when you start talking racing. On anything other than that the YFZ has a big advantage. those damn things practically ride themselves. Like mentioned, if you are a much better rider you will be fine, but you are going to work for it. Quote Link to comment Share on other sites More sharing options...
Burt Reynolds Posted January 15, 2010 Report Share Posted January 15, 2010 The reason 450's can be so quick is they put a lot of power to the ground instead of spinning. I can outrun my girlfriends yfz450 all day on pavement,but put us on some hardpacked dirt and that thing will beat me everytime. Quote Link to comment Share on other sites More sharing options...
RagunCajun Posted January 15, 2010 Report Share Posted January 15, 2010 (edited) I will disagree with what BSHEE400 about bigger carbs. My 4mil ran like a champ on stockers. I've been told time and time again that smaller carbs will net better low end. My vote is a port job(depends who your nuts swing from, mines flotek of course), vf3 reeds, milled head(if you dont want to buy a cooling head), a good driver and TRACTION. Anyways, read very close what Burt Reynolds said. You GOTTA put that power to the ground. Check this video outof my buddy riding my sheet. It's his first time racing it. My bike is pushing way more power than the others. However, for the difference in power is has, it sure isnt beating them by much. And if it didnt have an override, subtract about 3-4 lengths or more off each race. Yes it makes that much of a difference. Now if you look at the end of the video, a nice stretched yfz450 that is set up eats my bike alive again and again. Set for the win. Moral is dont port the bike etc and go out there thinking you will win. You might have the power but you might not have the skill or traction to do it. I've lost more than i won for sure on my banshee. Edited January 15, 2010 by RagunCajun Quote Link to comment Share on other sites More sharing options...
cousinsracing Posted January 15, 2010 Report Share Posted January 15, 2010 x3 on the traction part i have a 400cc powervalved motor pulling through 35mm pwk's and with the shitty tires i have on the back (worn holeshots) i have to baby it on anything but pavement or i just sit and spin and spin...if you cant hook, anything will beat you Quote Link to comment Share on other sites More sharing options...
00sheerzr Posted January 15, 2010 Author Report Share Posted January 15, 2010 true on the traction part, i just got smoked by a 02 wrx today with a few bolt ons and i have a nordic stage 3 saab 93 turbo with about 330 340 hp and all i did was ruin my tires , i guess its guna take lots of money to put a spankin on a yfz soo wish me luck and im sure guna give jeff at fast a call soon Quote Link to comment Share on other sites More sharing options...
KickStartMyHeart Posted January 15, 2010 Report Share Posted January 15, 2010 true on the traction part, i just got smoked by a 02 wrx today with a few bolt ons and i have a nordic stage 3 saab 93 turbo with about 330 340 hp and all i did was ruin my tires , i guess its guna take lots of money to put a spankin on a yfz soo wish me luck and im sure guna give jeff at fast a call soon I guess I am lucky or just patient. I blew my motor up 10 minutes after I got it home from the guy I bought it off of. I rebuilt it 4 days before sandfest in Waynoka. I wasn't so patient to jet it correctly and it got hot and collapsed a ring. Soooo when I got home, I tore it all apart AGAIN and I just started talking to all my friends about some ported jugs. I traded my stock jugs and $100 for a set of dune port jugs with boost ports (not sure if boost ports are typical) from JSR performance here in Wichita, KS. I also got a milled head for $85. JSR has tons of milled heads so if you need one, lemme know. I put an adjustable plate in it with +4 degrees. THen boysen reeds. Lastly, I traded CamATV my t-6 pipes for a set of CPI bigbore pipes and silencers. I never touched the crank or tranny. My crank is solid and no play in the rods at all. Once the motor was broke in (10 heat cycles), I put it on the dyno and it made 68 hp. My compression is 155 lbs/cylinder. Thats getting to the point of needing a trued and welded crank. I think its 160 lbs and ur gonna start having crank problems. Mine is for the most part stock and I can walk a lot of 450's. Buuuuut with that being said, I have to run em down in the top end. There is nooooo way on gods earth I can beat a 450 outta the hole. If I were u, I would buy one piece at a time. Thats what I did. Searched craigslist, ebay and of course the for sale section on here and stuck to my budget. U can do it, I promise. Just don't get in a hurry and try to rush it because you will have the same issues I did and blow motors up and melt em down. Its winter, can't ride much anyway unless u wanna rejet for the cold weather because cold weather will lean a 2 stroke out fast and u know what that means.....blow up time. If you need a head, I have to have ur stock head and $85. Quote Link to comment Share on other sites More sharing options...
rubberneck Posted January 16, 2010 Report Share Posted January 16, 2010 Sounds killer, the only thing you said i disagree with is the stuff about not needing to weld a crank until a certain psi compression. I have had 3 yes 3 banshees separate cranks that were stock compression bolt on bikes, no porting. 2 stock cranks and 1 hot rods. Now i bought all the bikes used and do not know all the history on them, but 2 of them i know had never been opened up before the cranks went tits up on me. I will never own a banshee stock or otherwise without welding the crank. Its just not worth a ruined trip over something as silly as a crank coming apart. just my .02 Quote Link to comment Share on other sites More sharing options...
trail rider Posted January 16, 2010 Report Share Posted January 16, 2010 heres a video to show the difference between porting and stock and heres me getting the holeshot at the 09 ironman gncc race Quote Link to comment Share on other sites More sharing options...
00sheerzr Posted January 16, 2010 Author Report Share Posted January 16, 2010 damn was that your bike in the video and what kind of porting do you have? Quote Link to comment Share on other sites More sharing options...
volcrano Posted January 17, 2010 Report Share Posted January 17, 2010 hey guys i got a 1992 banshee with t5s and k&n and my friends goin to buy a yfz 450 and i know hes guna run his mouth that its faster and i hate people like that lol , his bikes guna be built, i thinks its got cams and hi comp piston, what should my next mods be so i can smoke his ass and shut him the F**K up, i know im a better rider so il smoke him on a track all day dude-my stocker with vitos superstock pistons and fatties blew 450s by 2 bikes all day long.port it pipe it and enjoy the outcome.little work and u should eat that 450 easily.never had one-or a raptor 700 pass me-EVER. Quote Link to comment Share on other sites More sharing options...
BSHEE400 Posted January 17, 2010 Report Share Posted January 17, 2010 I will disagree with what BSHEE400 about bigger carbs. My 4mil ran like a champ on stockers. I've been told time and time again that smaller carbs will net better low end i totally agree with you that smaller carbs will make better bottom end power, but when i made that statement about "maybe some bigger carbs" all i had to go on was that he wanted more HP, he had said nothing about trail riding at this point. when i hear HP i think top end power Quote Link to comment Share on other sites More sharing options...
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