10milmike Posted July 18, 2013 Report Posted July 18, 2013 Ok, I have a question. I am setting my bike up for 1/8 this summer, have front and rear struts, 3.50x10 front tires and 20x10x10 american racer sd23 rears. Bike is a sand bike, so I the gearing I have is 15/43 for the hill. That is a perfect gear for my bike at the hill. So my question is should I Run 18/39 at the track? This is were I am lost, not really sure about 1/8. I had a phone conversation with slower then you a few mo's ago. Very helpful he was, but I can not remember what gearing he told me, YEA YEA I know I could just pm him, what what are u 1/8 guys running? Motor is a 10 mil with 2.86 straight cuts. Quote
2strokes4u Posted July 18, 2013 Report Posted July 18, 2013 i have a 7mil cub that I run 1/8th mile and I am currently running a 17/38 combo which tops out right as I cross the line. I am going to run the 18/38 combo next time I run and see how it performs compared to the 17/38. I am looking for more pull across all gears. You are in the right ballpark with 18/39. I say try it and see how u like it and maybe take a few extra rears 38,36 and play with it. Quote
10milmike Posted July 18, 2013 Author Report Posted July 18, 2013 Ok cool. Time order some sprockets. Thanks Quote
10milmike Posted July 18, 2013 Author Report Posted July 18, 2013 Also do u have a have a 1-6 tranny? Because I Have a 1-5 override. Quote
possum Posted July 21, 2013 Report Posted July 21, 2013 Question. could you run with 5th with a 18 39? Quote
10milmike Posted July 21, 2013 Author Report Posted July 21, 2013 Had a nice long phone conversation with SlowerThenYou yesterday. Got alot of good info from him. Thanks again. Quote
SlowerThanYou Posted July 21, 2013 Report Posted July 21, 2013 Question. could you run with 5th with a 18 39? Yep u sure can. Had a nice long phone conversation with SlowerThenYou yesterday. Got alot of good info from him. Thanks again. You're welcome! The 18/39 is his baseline gearing to start with. I suggested what he should use, that's track tested. His motor is bigger & will probably need to be fine tuned from my suggestion. I'm sure when he gets to the track we will be able to get things dialed in a little better. 1 Quote
10milmike Posted August 4, 2013 Author Report Posted August 4, 2013 Ok bike spins so bad out of the hole. I left the lock up same as if i was hillshooting. To much weight out of the hole. Think I am going to run only 4 stock springs and 16oz on three fingers and 19oz on the other three. Quote
SlowerThanYou Posted August 4, 2013 Report Posted August 4, 2013 what weight is on the lockup now? 27oz on each finger I'm a little confused here, maybe it's because it's early in the morning! Let me start by saying the normal way or standard for weighing arm weights is using grams. I used a conversion calculator to do the math. Are you sure on 27 oz. on each finger? That's a butt load of weight, you are 5 oz. away from 2lbs of weight on each arm!!!!!! Something is amiss here. Quote
10milmike Posted August 4, 2013 Author Report Posted August 4, 2013 (edited) U are right I ment to say grams. I am cutting the new weights 15/19 grams as u told me over the phone. Sent from my DROID RAZR using Tapatalk 2 Edited August 4, 2013 by 10milmike Quote
SlowerThanYou Posted August 4, 2013 Report Posted August 4, 2013 U are right I ment to say grams. I am cutting the new weights 15/19 grams as u told me over the phone. Sent from my DROID RAZR using Tapatalk 2 I knew something was wrong, LOL! So what about some time slip information? I understand that spinning badly isn't good, but a time slip still has some useful information. Quote
10milmike Posted August 4, 2013 Author Report Posted August 4, 2013 Taking it to the track Friday. Was doing testing on the street. I know it's not the same but wanted to get a idea of my set up. I will post my slips Friday. Sent from my DROID RAZR using Tapatalk 2 Quote
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