sequential shifter

[mattmullin]

Ive been working on this in my spare time for the past few months. Its a dsm specific sequential shifter. Or it will be. It is in the rough stages of figuring it all out. The finished shifter will be much prettier.

 

[eclipsh]

Very cool. Ray Peters was working on a design for one a while back too but I don't think he ever finished. How far along are you?

 

[mattmullin]

Its tough to say how much longer it will take. Im hoping to test it in my car this weekend or next.. My dogbox components showed up so the shifter may have to wait a bit while i build my new trans. But i might jus pul the shift cables out of my parts car and bench test it with a stock trans. And if all goes well i will be putting it in my car for track days.. Also i will be putting a switch in it for no lift to shift and a gear position sensor.. As i make progress on it i will post more info.

 

[91-GS]

It looks like you are doing a thing similar to a motorbike, but instead of a grooved drum you have a disc with groves on either side. Is that correct?
Will you make some drawings or blueprints available after this is finished?

 

[mattmullin]

Yes, that is exactly what i am doing. And i will probably make a few extra units after this one is done. There are a few local guys around me that have told me they are interested.

 

[91-GS]

Been interested in building a system like that too, but am still somewhat confused by how the system works so figured looking at drawings would make it clearer.
One of the areas that seems unclear now is the ratchet mechanism itself. It's basically like the ratchet in a tool or a bicycle sprocket, but how can it be moved either way without having to flip a small lever, just like on the tool? Unless of course it's a simple upside-down T shape where the | part is the shift lever and the __ parts turn the drum one way or the other.

 

[mattmullin]

Its actually the same as the shift mecanism in a motorcycle transmission. I will take some pics of the components this weekend when i am working on it.

 

[wvdsm92]

nice work can't wait to see it in action