SlowerThanYou Posted June 22, 2012 Report Share Posted June 22, 2012 Just curious what you recreation sand drag / hill-shooter guys prefer... tall gearing and take off in 1st or shorter gearing a take off in 2nd? Most prefer 2nd gear starts, but we make do with with 1st gear launches for sand drag/hillshooting. We have a 1-4 tranny that primarily is used on asphalt. It has worked very well on sand pulling 1.3 60's with a 210 lb. rider. We have changed a few things to make it work. We made the 1st gear launches work on two different quads/rider's with the same results. I would like to try 2nd gear starts, but don't have the right trans for it yet. Quote Link to comment Share on other sites More sharing options...
SlowerThanYou Posted June 23, 2012 Report Share Posted June 23, 2012 Like mentioned in this thread, the trans ratio spread is not ideal for 1-2 shift. You tend to have a greater rpm loss usually around 1,000 rpm less than all the other gears. We use a gearing calculator to help with the set-up. Using our shift rpm, trans ratio, primary ratio, final gearing & tire hieght. Using a 10,000 rpm shift point the calculator predicts the motor pulls down to 7,300 on the 1-2 shift. All the other shifts range between 8,200 - 8,300 rpm. One of the key areas needed to make 1st gear launches work is the clutch set-up. The above scenerio for the 1-2 rpm drop is changed to the clutch rpm slip (higher than 7,300 rpm). There area a few other areas you need to change also, but not totally necessary. We change our 1st gear trans ratio & it actually makes the 1-2 spread worse, but our other quad does just as well with the stock trans ratio. Quote Link to comment Share on other sites More sharing options...
tz racin Posted June 23, 2012 Report Share Posted June 23, 2012 jared what trans do u have 1-5 ?? well anyhow 1st gear starts ashphalt or hard clay with chissels in tires on methanol use a 16-40 and if u wieghj over 200 use a 16-41 trust me you will love it just my opinion and exsperience with it. Quote Link to comment Share on other sites More sharing options...
Nieskes Posted June 23, 2012 Report Share Posted June 23, 2012 I launch in first with 16/39!!!! Quote Link to comment Share on other sites More sharing options...
BigRed350x Posted June 24, 2012 Author Report Share Posted June 24, 2012 stock second gear, I'm 260, Chris...the former owner (now sold) of my motor is 300ish. Launch 2nd gear all day long. You're not going to break a stock second on a 10 mil cub unless you're a retard. 6-7 years...thousands of passes, lots of hook from a couple chubby guys. 1st gear is useless unless you're doing pavement or putzing along in the pits. The stretch between 1st and second is VERY hard to gear accordingly for... Someone was making an aftermarket tranny with a tightened up 1-2... Thanks man! I appreciate your info! I'll re-gear and use 2nd. - Jared Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted June 24, 2012 Report Share Posted June 24, 2012 2nd gear... Just like the: Quote Link to comment Share on other sites More sharing options...
BigRed350x Posted June 24, 2012 Author Report Share Posted June 24, 2012 2nd gear... Just like the: LOL! Quote Link to comment Share on other sites More sharing options...
BB3 Posted June 24, 2012 Report Share Posted June 24, 2012 We set our bikes up to launch in 2nd gear.....when i used to launch in 1st even with higher gearing it just seems like im still shifting fast from 1st to 2nd....so why not launch in 2nd. Plus we run 1-5 override with N-down and remove 1st gear so there is only 1 click up and its in the gear we want and ready to go. How do i get in the BHQ Brow crew....them guys seem like there kinda cool...lol Quote Link to comment Share on other sites More sharing options...
camatv Posted June 25, 2012 Report Share Posted June 25, 2012 if you know how to gear', tire', use a 1-5 they are much better than a 2-5. but i also try to ger for a high MPH and i'm a fatty too i blew up 2nd gear so many times i got tired of it.. went to the 1-5 n down before it was really "popular" and havent looked back. i run hinson spring loaded ( cause its the only one that stayed together) and 15/40 to 15/39 gearing on 72-74 roll out 14's and launch 1st. you also need to understand what it is your trying to accomplish with the trans itself. its not easy to get 280+lbs moving quick. Quote Link to comment Share on other sites More sharing options...
BigRed350x Posted June 25, 2012 Author Report Share Posted June 25, 2012 if you know how to gear', tire', use a 1-5 they are much better than a 2-5. but i also try to ger for a high MPH and i'm a fatty too i blew up 2nd gear so many times i got tired of it.. went to the 1-5 n down before it was really "popular" and havent looked back. i run hinson spring loaded ( cause its the only one that stayed together) and 15/40 to 15/39 gearing on 72-74 roll out 14's and launch 1st. you also need to understand what it is your trying to accomplish with the trans itself. its not easy to get 280+lbs moving quick. That's funny... you described my current setup almost to a Tee. I have the spring-loaded hinson 8-plate setup, 15x41 gearing and 72 RO 13-paddle haulers. I take off in 1st. It seems like everyone leaves me out of the hole, so I want to try and gear for a 2nd gear launch and see how it does coming out of the hole. - Jared Quote Link to comment Share on other sites More sharing options...
ban565 Posted June 26, 2012 Report Share Posted June 26, 2012 I launch the 10 mil in 1st it has 16-43 gearing. I launch the 4 mil in 2nd with 15-41 gearing. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted June 26, 2012 Report Share Posted June 26, 2012 That's funny... you described my current setup almost to a Tee. I have the spring-loaded hinson 8-plate setup, 15x41 gearing and 72 RO 13-paddle haulers. I take off in 1st. It seems like everyone leaves me out of the hole, so I want to try and gear for a 2nd gear launch and see how it does coming out of the hole. - Jared Unless you're in wet sand, get more tire for one. Put 16 up front and 44 out back, try that. People are leaving you out of the hole because you're blowing the tires off and by the time you shift second, you're dipping RPM and the tires are catching up... Leave in second, don't dump the clutch, ease it out... Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted June 26, 2012 Report Share Posted June 26, 2012 2nd gear. Always 2nd gear. Quote Link to comment Share on other sites More sharing options...
BigRed350x Posted June 26, 2012 Author Report Share Posted June 26, 2012 Unless you're in wet sand, get more tire for one. Put 16 up front and 44 out back, try that. People are leaving you out of the hole because you're blowing the tires off and by the time you shift second, you're dipping RPM and the tires are catching up... Leave in second, don't dump the clutch, ease it out... The swingarm I got with this chassis seems long to me, and I figured I would be spinning the tires a lot. Its a +14 with a +4 forward frame. I do have a 16T front I can throw on and see what it does. I need to get some new domes cut for our altitude. The domes that this 10mil had in it were set up for dumont, so its low on compression at our altitude. Thanks again for the help! - Jared Quote Link to comment Share on other sites More sharing options...
dajogejr Posted June 26, 2012 Report Share Posted June 26, 2012 We run 14 over arms here and use at least 14 paddle extremes. If you're hillshooting, with the weight transfer you might be ok, but for flat drags, you need more hook. 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.