G25 Shifter Improvement(s)

[SkillRacer]

Many people have been complaining that the shifter feels weak, and its very easy to switch between gears. True, since there is no real clutch, and no real resistance of transmition gears, and the thing has to be light enough and practical enough to be mounted easily at home, and there isnt much more to be done to improve this.

However one issue that arises from that is that because gears are too easy to switch, shifting between gears can be pretty quick, and you don't get a great deal of feedback to know if you're switching to the right gear. This isn't necessarily a problem, however it becomes one because there is a larger width of the "grove" in the 3rd and 4th gears. By grove I mean the space in which the shifter settles when in gear. There is no actual grove, since the shifter falls into its place due to the nature in which it works (see pictures: http://www.racers.co.kr/MHboard/article/view.php?no=60), but I don't know of any better word to describe this space, so ill refer to it as grove.

If you notice when the shifter is in 1st, 2nd, 5th, or 6th gear, the gear groves are pretty tight, and the shifter doesn't wobble from left to right. In 3rd and 4th, the shifter is allowed to wobble quite a bit from side to side. This extra width space allows for easy mis-shifting when down-shifting from 4th to 3rd, or from 3rd to 4th. Many times I have found myself mis-shifting to 5th instead of 3rd when going from 4th because there is such a large space in the grove that its easy to point the shifter in the wrong direction.

Question:
1. Is there a logical mechanical reason as to why the grove of the 3rd and 4th gear's is so wide? I don't believe its realistic and thats why they put it there. When you switch to sequential mode, the grove tightens to correct width.


2. Is it possible to stick an H-pattern plate on top to tighten the grove? This seems like the simplest thing to do, as all that will be required would be to remove the boot, and screw in an h-pattern plate in its place.

Any comments, suggestions, as to how to improve the shifter would be greatly appreciated. Thanks.

 

[MoAK]

I think the reason 3rd and 4th gear are so wide is to support the Sequential shifter, cause when pressed down it lock/hooks something

I too have thought of a H pattern plate for the shifter to let it be easier to know what gear it is in.

but What i'd like to do is change what ever spring is in the shifter to give it a more solid and stable feel.

Another thing I was wondering would a Frex Handbrake be possible to add on and have it mapped to a button on the shifter???

 

[godzilla_GTR]

What i'd like to do is change what ever spring is in the shifter to give it a more solid and stable feel.

I would like to do this but i would also really like to lenghen the shaft so the stick is longer. Would make it a bit more real for the likes of carbon and GT4/5 etc

 

[djblackmon]

((see pictures: http://www.racers.co.kr/MHboard/article/view.php?no=60),

WOOHOO JAPANESE, I cant understand one think haha, but I thought that little shifter was simple inside, but WOAH!

Back on topic, I noticed the same with my G25 shifter, but Im too scared to open it and break it... I think the H-pattern thing will work, but will require slight modification to the metal thing.

Also, the spring idea might work too, it might also be a little more safe in my opinion.

 

[godzilla_GTR]

I don't wanna touch it either lol, not after spending NZ$600 on it!

 

[SkillRacer]

I opened it up to take a look, and i realized that the reason the 3rd and 4th are so wide, is not because of the sequential shifter, but because of how the h pattern works. The shaft has two bolts sticking from either side, and those bolts lock into these groves, which become 1,2 and 5 and 6th. There is just so much extra space between 3rd and 4th. Sequential is just a plate that slides into place locking the 3rd and 4th into place.

If the boot is removed and a plate is insterted in its place, it should work fine.

I think it would be easy to make the shaft bigger with a simple modification of just unscrewing the ball, and replacing it with a taller ball. That way you wont have to replace the metal part.

The spring is really dug into the bottom. I wasn't able to see where it was, but maybe some rubberband trickery could do this, if some rubber bands are wrapped around the shaft correctly. Not sure how that would work, but it should have to add some type of resistance while switching the gears, but no resistance when the gears are in place. ...hmm come to think of it, it might be just easier to replace the spring.

 

[godzilla_GTR]

lol i'll wait a while before i do anything to it.

 

[SkillRacer]

lol i'll wait a while before i do anything to it.

Heh... its a pretty solid product, and built very well, there isnt much you can do to it to break it if you take it a part just to take a look. I didn't see any flimsy parts inside the shifter, everything was actually pretty clean and solid, so don't be afraid to take a peek


Found this link on RSC, looks its pretty easy to do this mod...

They seem to solve the problem of adding more resistance to shifts, making the shifting quieter, and making it more difficult to press down on reverse, so that you wont accidentally press down in sequential

http://www.lfsforum.net/showthread.php?t=15621