salmon_slayer06 Posted March 16, 2013 Report Share Posted March 16, 2013 I found this thread while looking around for info and have a few questions... http://bansheehq.com/forums/index.php?showtopic=140526 This has to be an old thread, but I found it very informative. Iwanted to clear something up first before I have mine cut, or do itmyself. Is this the mod that makes the trans shift easier and helpssolve the missed gears like 2nd? I haven't done much in modding mytranny except the shift star mod. But I'm about to do a list of thingsbefore I drop a stroker crank into this project I have going rightnow..... Modded shift star Shift Shaft mod.. opeing on end opened up Shift shaft bearings Shift drum bearing mod Possibly replacing shift forks if mine are bent Andcutting the dogs off the gears. How many gears in this tranny get thisdone? 2, or 4? Site has been a great deal of help..... Quote Link to comment Share on other sites More sharing options...
sheerider1026 Posted March 16, 2013 Report Share Posted March 16, 2013 I cut all except 1st. Once you get into it you will see that first doesnt have the option to be cut. Quote Link to comment Share on other sites More sharing options...
sheerider1026 Posted March 16, 2013 Report Share Posted March 16, 2013 I have all of the mods you listed plus im using the shift pro detent arm with a spring from FAST, and a pancake bearing.. Shifts like butter. Quote Link to comment Share on other sites More sharing options...
Nieskes Posted March 16, 2013 Report Share Posted March 16, 2013 I cut them all on my old tranny and it helped alot! I ran it until I could afford an override. Quote Link to comment Share on other sites More sharing options...
rubberneck Posted March 16, 2013 Report Share Posted March 16, 2013 yeah bitches Quote Link to comment Share on other sites More sharing options...
Abe Posted March 16, 2013 Report Share Posted March 16, 2013 How many of u guys have done the shift shaft bearings and where and what bearings do u use ? Also is this mod even worthwhile Quote Link to comment Share on other sites More sharing options...
Surfrjag Posted March 16, 2013 Report Share Posted March 16, 2013 i have had good luck with cutting only 3rd and 4th gear. seems like those are the ones that give the most trouble. i start off in 2nd most of the time anyways. wildcard put the bearing on the drum for me, i want to say it was 45 bucks to have that done. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted March 16, 2013 Report Share Posted March 16, 2013 How many of u guys have done the shift shaft bearings and where and what bearings do u use ? Also is this mod even worthwhile I have only seen shift shaft bearings on an RZ350. It required machining the bushing holes bigger and in the end the guy said he didn't think it was worth it. You can replace the bushings with some better materials that might have a smoother feel, but that isn't really a mod you will notice. Quote Link to comment Share on other sites More sharing options...
salmon_slayer06 Posted March 16, 2013 Author Report Share Posted March 16, 2013 When you say shift cam, you mean shift drum? Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted March 16, 2013 Report Share Posted March 16, 2013 When you say shift cam, you mean shift drum? Yeah Quote Link to comment Share on other sites More sharing options...
camatv Posted March 16, 2013 Report Share Posted March 16, 2013 i cut all 6 gears, modify the shift shaft ( i use an assembled case for this as it has to be done just right or it can pull into the next gear..) i put a bearing on the end of the drum, and i also cut the drum where the bearing goes on in a certain way. i also cut down the shift star. and that also is done a certain way so that it actually rolls better, instead of just rounding off the edges recently i did one with a MULL bearing on the roller i really liked the way that worked out. i also cut the gears vertically instead of in a rotary like whats pictured. these gears are super hard and you will go through a few milling cutters doing them. i dont use the bearing on the shift shaft i didnt think it really did much. the biggest problems is the entire relationship between those parts i re-do. if you just do one thing like cut 2 gears it will still at times shift crappy. i designed mine to shift right everytime no matter what. full throttle upshifts are possible with a slight hit of the clutch to unload. i think even with a chift interrupt they could be completely clutchless.. but i have never tried that. the biggest plus to doing this is the lack of shift fork wear that happens with any duneable or override.. sometimes there are other issues with the transmission that causes all kinds of problems. burnt gears burnt shafts, worn shift shaft's bad drums bent forks bent guides stuff like that. the price MOST machine shops will charge for cutting the gears and what you would pay for the drum bearing and or the other parts individually usually is much more than what i charge to do the entire transmission. plus you get the added benefit of someone who rides these things and knows what to look for as far as other problems. Quote Link to comment Share on other sites More sharing options...
salmon_slayer06 Posted March 16, 2013 Author Report Share Posted March 16, 2013 I took the main shaft and countershaft assemblies out of the case today. I took pictures of them before I took them apart. I found 3 gears on the countershaft that have 6 dogs. On the main shaft I found 2 that have 6 dogs. I'm going to have someone mill these. I was going to drill out the bigger holes for the shift shaft bearings but realized that I need a certain size drill bit. The outside diameter of the bearings are 1.630". Quote Link to comment Share on other sites More sharing options...
salmon_slayer06 Posted March 16, 2013 Author Report Share Posted March 16, 2013 My shift forks didn't look bent or have any signs of them needing to be replaced. The inside diameter of the shift drum hole where the bearing will be going is 1.105". The drum shaft outside diameter was 1.100". Quote Link to comment Share on other sites More sharing options...
salmon_slayer06 Posted March 16, 2013 Author Report Share Posted March 16, 2013 I took the main shaft and countershaft assemblies out of the case today. I took pictures of them before I took them apart. I found 3 gears on the countershaft that have 6 dogs. On the main shaft I found 2 that have 6 dogs. I'm going to have someone mill these. I was going to drill out the bigger holes for the shift shaft bearings but realized that I need a certain size drill bit. The outside diameter of the bearings are 0.630". Quote Link to comment Share on other sites More sharing options...
rubberneck Posted March 17, 2013 Report Share Posted March 17, 2013 ive done several and havent hurt a single cutter. Have used the same one actually. Maybe you need better cutters? Better coolant? The surface is pretty hard but once you get through that they come right off 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.