Drive ratio upgrade HOW TO: Belt Pulleys, Primary sprockets, improve TQ up to 13%
#982
#983
"You're way overthinking this, the optimal path is already laid out. get the ractech 1.0kg springs / ricor dampers, follow the instructions here and you'll be good to go."
Decided doin the racetech/ricor mod ..is the preload on the cap too great to remove whilst tubes are on bike and is there no way to suck oil out
Decided doin the racetech/ricor mod ..is the preload on the cap too great to remove whilst tubes are on bike and is there no way to suck oil out
I there were an easier way, I would have done it that way (cause I'm effing lazy)
But really it is not hard to do.
#985
Thank you all for your help. I have the race tech springs, progressive 422's with rap, stinted pads front and rear and a Vance & Hines naked on order now. I found the front 30t and am struggling with finding the 70T without going custom dollars on it. I believe I just found one on ebay but I'm waiting on a call back from the seller.
#986
Thank you all for your help. I have the race tech springs, progressive 422's with rap, stinted pads front and rear and a Vance & Hines naked on order now. I found the front 30t and am struggling with finding the 70T without going custom dollars on it. I believe I just found one on ebay but I'm waiting on a call back from the seller.
#987
Ive spent the last few days reading this thread and the other associated threads for this upgrade. All I can say is wow. Thanks to everyone who put into here for the rest of us. I decided to do this myself now. I would normally post in the Dyna threads but I wanted to post here since this was the longest and had the most details. Thanks again. I have a local Indy who is doing the labor for $200 (Long time friend as well). I'm gonna do the swap HD Pilot did (30/68). If I read everything correctly I can get the International Dyna pulley (HD 40535-06) 68T and not have to use a spacer. New Pulley bolts and the HD 30T front, HD 83595-11. Just fluids/gaskets after that and re-calibrate the speed with a tuner. Its going on a '14 Street Bob.
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LA_Dog (05-10-2017)
#988
Ive spent the last few days reading this thread and the other associated threads for this upgrade. All I can say is wow. Thanks to everyone who put into here for the rest of us. I decided to do this myself now. I would normally post in the Dyna threads but I wanted to post here since this was the longest and had the most details. Thanks again. I have a local Indy who is doing the labor for $200 (Long time friend as well). I'm gonna do the swap HD Pilot did (30/68). If I read everything correctly I can get the International Dyna pulley (HD 40535-06) 68T and not have to use a spacer. New Pulley bolts and the HD 30T front, HD 83595-11. Just fluids/gaskets after that and re-calibrate the speed with a tuner. Its going on a '14 Street Bob.
I'd love to find a way to bridge these identical topic threads in the Softail and Dyna forums but there is no way to do it. I guess all that matters is you find your way to one of these DIY threads and "get 'er done" !!
Good luck on the upgrade- If you are mostly town riding I'd suggest a 70t rear pulley. if you ever have any doubt or question about your speed mph vs rpm, look on page 1 at the charts. you'll still be getting perfectly normal mpg, you'll be well within very normal mph vs rpm ranges per gear, (actually you'll be in much more of an optimal range per gear) - And now you will have some real get-up-n-go from any gear (including 6th- say what ?!?).
The only time I suggest a 68t rear now is if you are mainly a freeway touring rider or for some reason you can't find a 70t or want to stick with some type of custom design pulley that only comes in 68t. Initially we thought that there might be some mpg penalty by running 70t but that is not the case. I say go 70t because since you are doing this you might as well get all of the performance benefit instead of leaving some on the table.
..Well I guess it could cause lower mpg because your right wrist will be VERY happy!! lol.
Lastly- for all you Dyna guys- be sure and confirm pulley offsets and fitments in the Dyna forum equivalent of this thread. it is better to be double sure than have to buy a part twice. - at least until we get some more Dyna-specific info here for reference.
Last edited by LA_Dog; 05-10-2017 at 03:55 PM.
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dirty 3rdy (07-10-2017)
#990
Hi, I've been reading this thread and wondered if someone might help me understand what cam is optimal for a 30 / 70 setup.
Current Bike Specs
2017 CVO Breakout
117 Kit
SE High Volume Oil Pump
259E cam
Stock 110 Heads
Bassani Pro Street Turnouts 2-2
My question is this, with an altered drive ratio say 30/70 is a cam that performs better higher in the RPM range more desirable? The current 259E comes on at about 3500 RPMS, assuming I'll get to 3500 very quickly with the altered ratio, do you want a cam that comes on strong early.
I want low end off the line TQ, just didn't know if moving to a lower end TQ cam would be that much better, or defeat the purpose somewhat.
I'm wanting to change my 259E and just want to make sure the change is compatible with the ratio change.
Thanks in advance guys.
Current Bike Specs
2017 CVO Breakout
117 Kit
SE High Volume Oil Pump
259E cam
Stock 110 Heads
Bassani Pro Street Turnouts 2-2
My question is this, with an altered drive ratio say 30/70 is a cam that performs better higher in the RPM range more desirable? The current 259E comes on at about 3500 RPMS, assuming I'll get to 3500 very quickly with the altered ratio, do you want a cam that comes on strong early.
I want low end off the line TQ, just didn't know if moving to a lower end TQ cam would be that much better, or defeat the purpose somewhat.
I'm wanting to change my 259E and just want to make sure the change is compatible with the ratio change.
Thanks in advance guys.