SlowerThanYou Posted April 19, 2013 Author Report Share Posted April 19, 2013 Going to cover some problems we discovered on the 1st track outing & the changes we're making for the next track session. I guess I should have said what we learned from or 1st track outing. The only problem we had was a broken water pump shaft. Tires: We ran a variety of 84"-85" RO tires & one set of 80" RO. K&T's thoughts was, too much RO. We have 2 sets of 75" RO tires now, 22x11x8 14 paddle Rippers & 24x11x10 Extremes both on 10" wide rims. Compression: We both knew we didn't have enough compression for sand. We are having new domes cut right now. I don't know where the compression is going to be set at yet. Fuel: Going back to alky for sand, but staying on gas for asphalt. Primarily for the cooling for the hot lapping style of racing on sand. The carbs are basically set-up already, but going to add another power jet & get another set of needles for tuning. Clutch: This was probably the biggest learning experience, because the big change in primary ratio. We went from a 2.86 to a 2.54 ratio. According to most, this speeds up the basket speed & that affects the clutch application. We are slowing down the clutch lock-up for the next outing. I will cover this a little more in the Lock-up/Lock-out Tuning thread. Quote Link to comment Share on other sites More sharing options...
J-Madd Posted April 19, 2013 Report Share Posted April 19, 2013 I would stay with the 2.86 (or 2.82 or whatever Hinson is.) We ran a 3.67 @ 86 then 3.60 @ 88 outta the trailer on my 643cc. Way less tire than you've been using. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted April 19, 2013 Author Report Share Posted April 19, 2013 I would stay with the 2.86 (or 2.82 or whatever Hinson is.) We ran a 3.67 @ 86 then 3.60 @ 88 outta the trailer on my 643cc. Way less tire than you've been using. Thanks for the tips! We don't have much choice & have to run the 2.54 primaries for the 1/4 mile. I wish I would have kept the 2.86s for sand. What tires are you referring to the 1st ones tried or the current ones not tried? How's Gilbert going? Quote Link to comment Share on other sites More sharing options...
J-Madd Posted April 20, 2013 Report Share Posted April 20, 2013 Hell I forgot about needing the higher ones for asphalt. We run 77 RO 14 stg extremes. Gilbert is good so far. I won't clutter your thread. I may start a new one for what's going on there. We are 0.006 or something off the record with that bike. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted April 20, 2013 Author Report Share Posted April 20, 2013 Hell I forgot about needing the higher ones for asphalt. We run 77 RO 14 stg extremes. Gilbert is good so far. I won't clutter your thread. I may start a new one for what's going on there. We are 0.006 or something off the record with that bike. Thanks again for sharing the information. Clutter the thread I don't care & good luck with the bike. Quote Link to comment Share on other sites More sharing options...
J-Madd Posted April 20, 2013 Report Share Posted April 20, 2013 New record 3.57@89 Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted April 20, 2013 Report Share Posted April 20, 2013 I hope someone is taking pics of all this shit. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted April 20, 2013 Author Report Share Posted April 20, 2013 New record 3.57@89 I hope someone is taking pics of all this shit. Good job, would like to see pics & vid too. Quote Link to comment Share on other sites More sharing options...
J-Madd Posted April 20, 2013 Report Share Posted April 20, 2013 I didn't take any video but I'm sure there's some out there. New open twin Limited Record also 3.40@91 on the Scimitar. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted April 27, 2013 Author Report Share Posted April 27, 2013 We decided on our compression change & the domes are cut. The 1st domes were 14.5:1 for asphalt. The new ones are at 16.5:1 that we'll use for 300' only. Quote Link to comment Share on other sites More sharing options...
J-Madd Posted April 27, 2013 Report Share Posted April 27, 2013 Are gonna remote start or kick? That's gonna be a mfer to kick! Even though its not a huge motor we remote start. I broke the clutch cover and kicker gear on the basket trying to start it at the shop one day. I didn't want to have to wear boots to start it, and didn't want to risk breaking stuff again. If you are gonna kick it (and most people do) you can run a dyna and retard the timing for low (e.g. <1000, or whatever) rpms. You probably know all of that, just throwing that out there. Hate to see ya break an ankle! Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted April 27, 2013 Author Report Share Posted April 27, 2013 Are gonna remote start or kick? That's gonna be a mfer to kick! Even though its not a huge motor we remote start. I broke the clutch cover and kicker gear on the basket trying to start it at the shop one day. I didn't want to have to wear boots to start it, and didn't want to risk breaking stuff again. If you are gonna kick it (and most people do) you can run a dyna and retard the timing for low (e.g. <1000, or whatever) rpms. You probably know all of that, just throwing that out there. Hate to see ya break an ankle! Going to kick it. We have the reinforced clutch cover & we wear boots. We also have the programmable Dyna. We will see what happens. Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted April 27, 2013 Report Share Posted April 27, 2013 We've broken 3 kick start gears from kick back on our 18DMs. As long as you kick them all the way through the stroke there's no issue. Half assing it causes a hurt foot! Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted April 28, 2013 Report Share Posted April 28, 2013 Yeah, compression and stroke is a good way to mess up a foot and expensive parts. How are you beefing the cover Slo? Or you just running something like a Mattoon or SFB Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted April 28, 2013 Author Report Share Posted April 28, 2013 Yeah, compression and stroke is a good way to mess up a foot and expensive parts. How are you beefing the cover Slo? Or you just running something like a Mattoon or SFB I don't know what the SFB is, but we are running the beefed up Direct Drive cover. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.