Primary/Transmission/Driveline/Clutch Find answers to general powertrain, primary and transmission. Have clutch issues and need suggestions? Post them here.

5 speed evo over drive?

Thread Tools
 
Search this Thread
 
  #1  
Old 07-17-2019, 04:25 AM
Bearlike's Avatar
Bearlike
Bearlike is offline
Stage III
Thread Starter
Join Date: Jul 2019
Location: England
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Default 5 speed evo over drive?

Hello, is there such a beast as a 5 speed over drive kit for an Evo gearbox?
I don't want to use a 6 speed kit, as my Pan head (look a like) kick start kit is designed only for a 5 speed box (longer main shaft).

I suppose I could use a 6 speed kit (which I have), if there were a 6 speed main shaft available for the Pan kicker kit. Only wish I knew who made it

So there we go, two questions in one
 
  #2  
Old 07-17-2019, 07:41 AM
Dan89FLSTC's Avatar
Dan89FLSTC
Dan89FLSTC is offline
Seasoned HDF Member

Join Date: May 2008
Location: South Carolina
Posts: 17,938
Received 8,499 Likes on 4,612 Posts
Default

Well,if you are staying with a 5 speed, why not just change either the primary gearing or secondary drive gearing?

5 speed transmissions are all direct drive 5th gear, no overdrive.
 

Last edited by Dan89FLSTC; 07-17-2019 at 07:43 AM.
  #3  
Old 07-17-2019, 08:30 AM
bustert's Avatar
bustert
bustert is offline
Grand HDF Member
Join Date: Aug 2008
Posts: 4,157
Received 714 Likes on 625 Posts
Default

https://www.twistgear.net/page%20html/twistgear.html

i run the sportgear with int'l gearing on my 01 sport, a real hoot, even surprised some rice
 
  #4  
Old 07-17-2019, 08:38 AM
Bearlike's Avatar
Bearlike
Bearlike is offline
Stage III
Thread Starter
Join Date: Jul 2019
Location: England
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Default

Hi, I did think about that, but something tells me it's just not the same thing. The gap between 4th and 5th will be further apart, when compared with a proper overdrive. Maybe.
I was hoping an after market manufacturer would have make them.

Of course the obvious thing to do is to use the 6 speed overdrive, sell the 5 speed kicker, and buy a kicker for a six speed.
I was trying to keep the cost down but, oh well.
 
  #5  
Old 07-17-2019, 12:26 PM
Mattbastard's Avatar
Mattbastard
Mattbastard is offline
Elite HDF Member

Join Date: Nov 2009
Location: Tampa
Posts: 4,076
Received 1,408 Likes on 864 Posts
Default

You could get a 65T rear pulley (or a larger front pulley), but then all your ratios would be higher. That's what I did to my 94. I've got a 32T front and 65T rear from a mid 90's Softail. Bolted right up and already set for the 1.5" wide belt. Now I spin 2950 rpm at 75.
 
  #6  
Old 07-17-2019, 07:08 PM
bustert's Avatar
bustert
bustert is offline
Grand HDF Member
Join Date: Aug 2008
Posts: 4,157
Received 714 Likes on 625 Posts
Default

on the sport, 1>4 is geared down and 5th is 1:1
i went with a 55 on the back and stock front which i believe is a 29
with the 55, i get a 500 rpm drop in 5th.
do not think it will fly, even with the 55 on the back it performs better than stock, when i drop out of 3rd, no speedo left to count clicks.
i turn about 2.5k at 60mph.

http://www.twistgear.net/page%20html/sportgear.html
i know it will do 140 but gets squirrley after that. big hold back is the carb
it will pull 60 in 1st and pull the wheel up on a slam shift to second.
 
  #7  
Old 07-17-2019, 09:13 PM
Max Headflow's Avatar
Max Headflow
Max Headflow is online now
Seasoned HDF Member
Join Date: Dec 2005
Location: poway
Posts: 16,105
Received 5,256 Likes on 3,628 Posts
Default

Din't know if a kicker can be added but..

https://www.jimsusa.com/transmissions.php

Jims Fat 5 overdrive.
 
  #8  
Old 07-18-2019, 02:37 PM
Bearlike's Avatar
Bearlike
Bearlike is offline
Stage III
Thread Starter
Join Date: Jul 2019
Location: England
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Default

Since posting I've found an after market website with some interesting info.
It mentions other manufactures use screw on tips to lengthen existing main shafts, and the way they always snap off. Oh, here we go again
Diving into the garage to take a close look at the main shaft, what a disappointment; and I thought it was one special shaft.

So I'll be using my 6 speed overdrive, and keep my eyes open for a new kicker.

Thnks for the help guys.
 
  #9  
Old 07-19-2019, 07:41 AM
bustert's Avatar
bustert
bustert is offline
Grand HDF Member
Join Date: Aug 2008
Posts: 4,157
Received 714 Likes on 625 Posts
Default

screw on tips, that just doesn't even sound right.
 
  #10  
Old 07-19-2019, 01:35 PM
djl's Avatar
djl
djl is online now
HDF Community Team

Join Date: Jun 2006
Location: san antonio
Posts: 12,018
Received 2,031 Likes on 1,499 Posts
Default

Originally Posted by Bearlike
Hi, I did think about that, but something tells me it's just not the same thing. The gap between 4th and 5th will be further apart, when compared with a proper overdrive.
Running the Twist Gear in a 2002 FLHT with a built motor; the increased gap between 4th and 5th is not an issue. Shifting at that rate of speed, the gap won't even register. The neat thing about the Twist Gear is that installed with OEM primary and secondary gearing lowers the ratio in the first four gears while maintaining the final drive ratio. Or you can change go up two teeth on the motor sprocket or up two teeth on the trans drive pulley and the first four gears are very close to stock but final drive drops from 3.15 to 2.965 or 2.917 respectively. Not a huge drop in rpms, about 200 without actually doing the math which would allow say a 70mph cruise at 2700 rpms instead of 2900; round numbers of course. A 200 rpm drop might not be worth the $500 cost and the time involved to install but if no other options exist, maybe worth considering.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Travis Fish
Touring Models
4
06-07-2018 04:17 PM
kopcicle
Shovelhead
6
10-22-2012 05:46 PM
CurtisP
Sportster Models
12
08-27-2012 08:18 AM
rfranz1952
Primary/Transmission/Driveline/Clutch
12
03-12-2008 04:13 PM
Spitshine
Shovelhead
7
01-14-2008 02:31 PM



Quick Reply: 5 speed evo over drive?



All times are GMT -5. The time now is 10:10 AM.