SlowerThanYou Posted March 17, 2013 Report Share Posted March 17, 2013 We have ran Dumont, Glamis & Armagosa Valley with an 8" arm, 14 paddle haulers & 12 paddle extremes, 7mm cub on race gas with a 210 lb. rider. With the proper clutch set-up & gearing it carried the front tire about 6" off the ground. We ran 16/41 sprockets & left in 1st gear. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted March 17, 2013 Report Share Posted March 17, 2013 This is at Glamis on Oldsmobile hill. Quote Link to comment Share on other sites More sharing options...
J Whitehurst Posted March 17, 2013 Report Share Posted March 17, 2013 arched makes no difference from straight I understand that, just explaining my setup . Seems like he has another issue. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted March 17, 2013 Report Share Posted March 17, 2013 This is Banshee Hill at Dumont. Quote Link to comment Share on other sites More sharing options...
m671054 Posted March 17, 2013 Report Share Posted March 17, 2013 So it seems you have timing,jetting,or compression issue compared to others. Quote Link to comment Share on other sites More sharing options...
m671054 Posted March 17, 2013 Report Share Posted March 17, 2013 Read this all again and it actually seems lik your close to the others that chimed in. it really is probably a dome, jetting or timing setting. also if you sit way up on the tank can you leave in second? whats your tire psi? and where or when do you wheelie. instant or 15 feet out? Quote Link to comment Share on other sites More sharing options...
101Diesel Posted March 17, 2013 Author Report Share Posted March 17, 2013 I'm practically on top of the tank and the tire psi is 10lbs. It wheelies instantly... Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted March 17, 2013 Report Share Posted March 17, 2013 Slingshot in good tune with oem springs. IMO, the 1st mistake is trying to get into 5 gear up the hill when launching is 1st. 5th gear is used up the hill when launching in 2nd. The gearing for the 2 different starting gears is totally different & affects how the motor pulls RPM on the hill. We use a 1st gear launch & only use 4th gear up the hill. Banshee hill at Dumont IMO is a joke, compared to Comp hill or even Oldsmobile hill @ Glamis. We use 4th for all of them. I do agree with your weight you need a slightly longer arm & +10 is what I would recommend. I still think you have other issues to deal with also. I would like to hear about that good tune with the slingshot. Quote Link to comment Share on other sites More sharing options...
m671054 Posted March 17, 2013 Report Share Posted March 17, 2013 Then run less spring pressure on your clutch. This will let it slip so it wont bog in second. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted March 17, 2013 Report Share Posted March 17, 2013 I don't know why people put so much focus on leaving in 2nd gear on sand. We have proven 1st gear launches work on the hill & at the track if done right. Plus, it really helps with heavier rider's. Quote Link to comment Share on other sites More sharing options...
101Diesel Posted March 17, 2013 Author Report Share Posted March 17, 2013 IMO, the 1st mistake is trying to get into 5 gear up the hill when launching is 1st. 5th gear is used up the hill when launching in 2nd. The gearing for the 2 different starting gears is totally different & affects how the motor pulls RPM on the hill. We use a 1st gear launch & only use 4th gear up the hill. Banshee hill at Dumont IMO is a joke, compared to Comp hill or even Oldsmobile hill @ Glamis. We use 4th for all of them. I do agree with your weight you need a slightly longer arm & +10 is what I would recommend. I still think you have other issues to deal with also. I would like to hear about that good tune with the slingshot. Yes Banshee Hill is a bunny slope but the main hill is no joke at Dumont. It's not a sand mountain but it can hold its own. Comp hill at Glamis is a joke now, it has a plateau in the middle of its face. I always enjoy Olds though. The top end is apart right now getting fresh nikasil from Millennium, new pistons and domes from Kevin. I'm going to go with the +10 and try adjusting the spring tension on the clutch. What's a good starting point for spring tension on the clutch? Should I ground the bolts then back them out a turn at a time? Btw my slingshot only has one ball in each slot... Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted March 17, 2013 Report Share Posted March 17, 2013 I'll have to get back with you later. I'm testing the new motor today. I do have some more recommendations. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted March 17, 2013 Report Share Posted March 17, 2013 I'd just leave the swinger the way it is and focus on clutch tuning. As of right now you know the bike is hooking up, so going with a long swinger means you could eventually run in to traction issues. Then you will need tires to help combat that, and maybe a different shock/strut set up. So it could just save you money to work with your clutch set up and really focus on the way the power hits the tires out of the hole. Quote Link to comment Share on other sites More sharing options...
m671054 Posted March 17, 2013 Report Share Posted March 17, 2013 I feel the reason most run 2-5 is so they dont worry about an accidental 1-n shift and they can just upshift till theres no more gears. dont have to stop at fourth. also if he already has figured out the max gear he can pull why wouldnt he want to make some small clutch adjustments rather than changing the whole setup. If you go with a plus 10 you will need new shock spring and valving, chain,and tires for sure. What you need to do is realize that you really have no idea about your clutch tune or how to tune it. look into different material and weight balls. Get a sping tester and set up some different base pressure sets get a cover you can acces your clutch easily with. and read slowerthanyous clutch tuning thread a couple times and go apply your knowledge.you have the ability to go faster with what you already have. also fyi an 8 paddle might not wheelie and might let you pull more mph on the topend. ive even seen it done with 7 paddles at smn Quote Link to comment Share on other sites More sharing options...
101Diesel Posted March 17, 2013 Author Report Share Posted March 17, 2013 I feel the reason most run 2-5 is so they dont worry about an accidental 1-n shift and they can just upshift till theres no more gears. dont have to stop at fourth. also if he already has figured out the max gear he can pull why wouldnt he want to make some small clutch adjustments rather than changing the whole setup. If you go with a plus 10 you will need new shock spring and valving, chain,and tires for sure. What you need to do is realize that you really have no idea about your clutch tune or how to tune it. look into different material and weight balls. Get a sping tester and set up some different base pressure sets get a cover you can acces your clutch easily with. and read slowerthanyous clutch tuning thread a couple times and go apply your knowledge.you have the ability to go faster with what you already have. also fyi an 8 paddle might not wheelie and might let you pull more mph on the topend. ive even seen it done with 7 paddles at smn Thanks for the info, but I want to drop the stock carrier and heavy axle. I'll read up on his thread too... Quote Link to comment Share on other sites More sharing options...
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