SlowerThanYou Posted March 1, 2013 Author Report Share Posted March 1, 2013 You had 1.1 60fts in sand? Surely that's asphalt. I guess you'll see if the same type of setup works with bigger motor. They're a PITA to me. My Cubs would outrun some of my bigger motors for a while, which is completely aggravating. Aside from clutch and chassis setup, it seems that exhaust duration, pipe, and ignition timing changes are magnified with the bigger motors. We lost upwards of 50 hp on the dyno with a 3 degree change in ignition timing; and lost 20 hp or so with 6 degrees of exhaust timing change. Good luck and keep us posted. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted March 1, 2013 Author Report Share Posted March 1, 2013 You had 1.1 60fts in sand? Surely that's asphalt. I guess you'll see if the same type of setup works with bigger motor. They're a PITA to me. My Cubs would outrun some of my bigger motors for a while, which is completely aggravating. Aside from clutch and chassis setup, it seems that exhaust duration, pipe, and ignition timing changes are magnified with the bigger motors. We lost upwards of 50 hp on the dyno with a 3 degree change in ignition timing; and lost 20 hp or so with 6 degrees of exhaust timing change. Good luck and keep us posted. Oops! messed up on the last post. Yep, it went high 1.1 on sand with the 18 DMX on motor. It was very close to the record 1st time out. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted March 1, 2013 Author Report Share Posted March 1, 2013 you say you do alot of R&D on the clutch setups... is lockout the only wat to go with 300ft? That's a pretty open ended question. This is a very generalized answer. IMO, any power level can benefit from a properly tuned lock-up. Some lower powered set-ups can get by with a very skilled rider, hand slipping the clutch lever out. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted March 1, 2013 Author Report Share Posted March 1, 2013 I'll be at the Bako race. We hope not to do anything stupid the weekend before, but the 1/4 mile can be brutal on a new combo. I'm sure will make out alright & looking forward to meeting you. Quote Link to comment Share on other sites More sharing options...
sprinklerman Posted March 2, 2013 Report Share Posted March 2, 2013 Keep us posted on your results! Thanks. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted March 2, 2013 Author Report Share Posted March 2, 2013 You had 1.1 60fts in sand? Surely that's asphalt. I guess you'll see if the same type of setup works with bigger motor. They're a PITA to me. My Cubs would outrun some of my bigger motors for a while, which is completely aggravating. Aside from clutch and chassis setup, it seems that exhaust duration, pipe, and ignition timing changes are magnified with the bigger motors. We lost upwards of 50 hp on the dyno with a 3 degree change in ignition timing; and lost 20 hp or so with 6 degrees of exhaust timing change. Good luck and keep us posted. Thanks for the tips also! Quote Link to comment Share on other sites More sharing options...
J-Madd Posted March 2, 2013 Report Share Posted March 2, 2013 If you had even 1.19 60ft that puts you in the 3.2 range if you have any mph at all. Wild Thing runs those 60 ft times. Something doesn't seem right. Not saying you don't run your times but do you should know that those 60 ft times are unattainable on that motor. No disrespect. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted March 2, 2013 Author Report Share Posted March 2, 2013 If you had even 1.19 60ft that puts you in the 3.2 range if you have any mph at all. Wild Thing runs those 60 ft times. Something doesn't seem right. Not saying you don't run your times but do you should know that those 60 ft times are unattainable on that motor. No disrespect. I'm not going to speak for the Puerto Ricans, because they are pretty soft spoken compared to me. You act like I give a shit what you think about our quads. We have travelled all over the states & have proven what they can or can't do. Now for my new motor, I don't know what kind of numbers it will do. I know one thing, it will not be misrepresented on the keyboard or bench racing. There's always a member or 2 that see it run & have a comment or it appears on youtube. You question or state asphalt or sand numbers. These are the facts on our findings, one of the reasons I wanted to try 300'. The numbers in 60' & 300' compared to 330' are almost identical between the 2 surfaces. That has been our findings. I would like to here your results from the 2 different surfaces? Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted March 3, 2013 Author Report Share Posted March 3, 2013 A big thanks goes out to Chris (Wheelman)! He made time to go over some tuning differences between a Cub motor & a DMX motor. The tune-up is going to be pretty conservative for the 1st couple races. Spending the weekend changing our baseline carb, timing, launch/shift rpm, gearing & clutch from the smaller motor. I also wanted to share that putting a DMX in a stock frame required one modification. I wish I would have taken a photo. We practiced on my dune accident frame. The left tube running from the bottom frame rail to the upper rail requires a notch above the motor mount. This is for the exhaust mount/flange to clear the tube & requires about a 3/8" notch. I'll have to try & shoot a picture or two of the set-up we used to press the notch. Quote Link to comment Share on other sites More sharing options...
Wheelman Chassis Posted March 4, 2013 Report Share Posted March 4, 2013 A big thanks goes out to Chris (Wheelman)! He made time to go over some tuning differences between a Cub motor & a DMX motor. The tune-up is going to be pretty conservative for the 1st couple races. Spending the weekend changing our baseline carb, timing, launch/shift rpm, gearing & clutch from the smaller motor. I also wanted to share that putting a DMX in a stock frame required one modification. I wish I would have taken a photo. We practiced on my dune accident frame. The left tube running from the bottom frame rail to the upper rail requires a notch above the motor mount. This is for the exhaust mount/flange to clear the tube & requires about a 3/8" notch. I'll have to try & shoot a picture or two of the set-up we used to press the notch. Chris is a good guy. Something to be said about a builder who races. Thanks guys! We will be on sand and asphalt this year, hope to meet up with brian and john at a race somewhere for a beer or 3. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted March 6, 2013 Author Report Share Posted March 6, 2013 Thanks guys! We will be on sand and asphalt this year, hope to meet up with brian and john at a race somewhere for a beer or 3. I would like to add. I have never spent a dime with Wheelman & he still makes time to give me advice. I hope to pay him back sometime in the near future. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted March 9, 2013 Author Report Share Posted March 9, 2013 Here's part of a re-post that LocoKnow-It-All was curious about. It was one our runs to the 1st win of the year. I'll re-post the trophy/plaque whenever I feel like it. 1 Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted March 9, 2013 Author Report Share Posted March 9, 2013 Forgot to say 2012. Quote Link to comment Share on other sites More sharing options...
sprinklerman Posted March 9, 2013 Report Share Posted March 9, 2013 Thats get'n it for sure. I see you have a lightweight jockey on there too! haha Quote Link to comment Share on other sites More sharing options...
James_21 Posted March 9, 2013 Report Share Posted March 9, 2013 Quick off the line for sure Quote Link to comment Share on other sites More sharing options...
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