Custom Short Shifter
Originally Posted by brian
gaps, since you're 18 i'm gonna assume you're a eithe a freshmen or sophmore engineer...so basically you haven't taken any real engineering classes yet either. and plus, i'm ECE and it's really not that hard...
Originally Posted by ScionBandit
...so this thread has diverted from its original path because everyone thinks they know everything....
Not to fuel anything, but actual shift distance along the arc would be shorter... but it's not really "simple geometry".
Just look at two circles, one larger than the other, both having the same origin. On the circle with the larger radius (read: the longer distance from the fulcrum) you have a longer arc length, hence more distance to travel.
But seeing as there are many other factors at play, this simple point is meaningless in an argument about whether or not to cut ones shifter down.
Just look at two circles, one larger than the other, both having the same origin. On the circle with the larger radius (read: the longer distance from the fulcrum) you have a longer arc length, hence more distance to travel.
But seeing as there are many other factors at play, this simple point is meaningless in an argument about whether or not to cut ones shifter down.
Originally Posted by bcnu_702
Bummer, I hate when developing stories with interesting endings stop without giving the ending....so umm did ya cut it or buy a new one?
cutting your stock shifter will work just the same as buying a shortened shifter. where do you think the companies that make short throw shifters take length off of? look at a comparison of the two:

stock is on the left, twm short throw on the right. everything is almost identical with the only exception being the length of the shifter from the pivot point to the **** threads. they can really only shorten the length from this area. if they shortened from the lower half the shifter cup would not actuate the shift linkage far enough to engage a gear. And it really is simple geometry. the closer you are to the pivot , or fulcrum, point the shorter the traveled distance becomes. and the same is true for the opposite, the further away you are from the pivot point, the greater the traveled distance becomes.
Here's a crude diagram to illustrate the point:

so for the issue of cutting your stock shifter in hopes of shortening the throw, it will work. but for a stiffer, more direct shift you will want to invest in upgraded shifter and cable bushings. if you cut the shifter and do not replace the bushings you will still have that soft, mushy feeling in your shifts.
Make sense?

stock is on the left, twm short throw on the right. everything is almost identical with the only exception being the length of the shifter from the pivot point to the **** threads. they can really only shorten the length from this area. if they shortened from the lower half the shifter cup would not actuate the shift linkage far enough to engage a gear. And it really is simple geometry. the closer you are to the pivot , or fulcrum, point the shorter the traveled distance becomes. and the same is true for the opposite, the further away you are from the pivot point, the greater the traveled distance becomes.
Here's a crude diagram to illustrate the point:

so for the issue of cutting your stock shifter in hopes of shortening the throw, it will work. but for a stiffer, more direct shift you will want to invest in upgraded shifter and cable bushings. if you cut the shifter and do not replace the bushings you will still have that soft, mushy feeling in your shifts.
Make sense?
that dp guy really has been "DP"ed lol. stupid. i cut mine 2 inches and it works much better than stock and looks and feels great. $200 for a short throw is the biggest waste of money and should be the absolute last mod done to your car after you won the lottery. any one else agree?
Originally Posted by xIxAMxHOLLYWOODx
cutting your stock shifter will work just the same as buying a shortened shifter. where do you think the companies that make short throw shifters take length off of?
Make sense?
Make sense?
Originally Posted by ALaS
Stop _____ing, everyone.
Why don't you guys do an experiment if you can't prove it with math. Use straws..i don't know. I've done it, proved it with math and know the answer.
Why don't you guys do an experiment if you can't prove it with math. Use straws..i don't know. I've done it, proved it with math and know the answer.
Why dont you stop posting then since you know all the answers and never share any of them.
A stock shifter with 2" cut off of the top is NOT a short shifter. It is a shortened shifter. My shifter is 1/2" lower in height than the stock shifter-- but the throws are almost 60% shorter.
A short shifter moves more of the shaft below the pivot. My shifter, next to a TWM Stage 2:

The longest throw (1st to 2nd) with my shifter, measured from the top of the shiftknob, is 2 inches.
A short shifter moves more of the shaft below the pivot. My shifter, next to a TWM Stage 2:

The longest throw (1st to 2nd) with my shifter, measured from the top of the shiftknob, is 2 inches.
Originally Posted by tikbhoy
Originally Posted by Diluvium
i customly chopped my thrower about 2 inches (right where the thread ends) .........
my shifter shifts so quick.....
(A)......the more you shorten the thrower the more effort you gotta use to get into gear. .......
(B)your only spending 80 bucks for the same performance or better.......
my shifter shifts so quick.....
(A)......the more you shorten the thrower the more effort you gotta use to get into gear. .......
(B)your only spending 80 bucks for the same performance or better.......
(A) i do agree with that because u do loose leverage therefor u need to have more effort in shifting it. but ur just giving urself a workout.
(B) ???? no way this is true.
im no math genius but i think ur shifting hasnt changed at all, i dont think its faster nor quicker in between gears. if u look at all the aftermarket short shifter the pivot changes even tho the lever itself is shorter.
credits for pix to zer0
from thread zer0's fs thread


I haven't seen a side by side comparison like these pics, this proves what I thought was true. Where the after market shifters are getting the shorter throw from is a combination of shortening the top of the shaft plus lengthening the bottom of the shaft. By lengthening the bottom half of the shaft it takes less motion to engage a gear. You basically are just moving the pivot point further up the shaft.





