atcandbanshees Posted April 27, 2013 Report Posted April 27, 2013 I have a 4mm cub making 99.5 hp rear wheel and a +12 Swingarm on it and it spins like crazy at launch then its perfect once I grab 3rd gear wheelies just a little with 12 paddle extremes I'm think about switching to a +10 Swingarm or buying 12 paddle staggereds or 14 paddles what do u think will work best? Quote
m671054 Posted April 27, 2013 Report Posted April 27, 2013 More info. Weight of bike and rider. type of sand. tire pressure and ro. gearing front back and primary. clutch spring and lockup type. just a few more details to give you an accurate suggestion Quote
atcandbanshees Posted April 27, 2013 Author Report Posted April 27, 2013 I weight 185 idk bike stock mod chassis and regular lockup with all hd springs 71ro Quote
atcandbanshees Posted April 27, 2013 Author Report Posted April 27, 2013 Oregon dunes and 14 41 gearing Quote
atcandbanshees Posted April 27, 2013 Author Report Posted April 27, 2013 Oregon dunes and 14 41 gearing Quote
possum Posted April 27, 2013 Report Posted April 27, 2013 at 100 hp I vote less arm or airdown or both. And take some spring pressure off to allow a slip off the line. imo Quote
possum Posted April 27, 2013 Report Posted April 27, 2013 Oh and you might need to go to a 15-41 or so with a smaller rollout. imo Quote
m671054 Posted April 28, 2013 Report Posted April 28, 2013 Primary ratio? tire pressure? hows it pull the 14-41? can you pull more like 15 or 16-41? 1 Quote
m671054 Posted April 28, 2013 Report Posted April 28, 2013 Whats a regular lockup? Answer all these question and youll be suprised at how good the info you get will be. i already see 2 problems in your setup. i bet there is 1 more Quote
atcandbanshees Posted April 30, 2013 Author Report Posted April 30, 2013 Tire pressure is 4lbs and direct drive lock up 2.86 and standard trans seems like if I gear it up anymore it won't wanna pull 6th Quote
atcandbanshees Posted April 30, 2013 Author Report Posted April 30, 2013 What problems do you think I should change? Also the 12 works nice when it starts hooking it's still pulling the front with me on the tank Quote
m671054 Posted April 30, 2013 Report Posted April 30, 2013 Gear up to 16-41. Only run up to 5th gear. the extra wheel speed should help launch. i also rec all stock springs. possibly cut 1 coil on 3 of them. This will let the clutch slip a little not blowing the tires off so bad and help if it wanted to bog. then maybe add 1 nut to each arm if the clutch slips on topend.adjust tire pressure between 3-5lbs depending on sand conditions. to recap problem 1 is to low gear causing excessive spin. problem 2 is to much spring in clutch. problem 3 was the bonus. 6th gear is not for sand drags in my opinion. This should help. dont overtire. it will slow you down on the longer runs Quote
coryv4 Posted April 30, 2013 Report Posted April 30, 2013 16 41 in 5th gear should pull pretty damn near 6th gear with a 14 41 Quote
m671054 Posted May 1, 2013 Report Posted May 1, 2013 Exactly. same topend speed/ratio but one less shift and more wheel speed off the line Quote
atcandbanshees Posted May 28, 2013 Author Report Posted May 28, 2013 Tried my new setup this weekend and worked pretty well I think in oregon sand it will be dead on here in Washington sand is more course. I put half stock springs back in and am running a 15 41 gear setup it didn't wanna launch 2nd with the 16 front also running 3.5 tire pressure Quote
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