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Posted by: TonyAKAVW Jul 26 2007, 08:40 PM

http://www.honda-tech.com/zerothread/1613435

That is one amazing piece of mechanical engineering. I'm still trying to figure out how that thing even works. I'm also thinking that it might be interesting to see if a sequential shifter could be made using solenoids so that you could use paddles. Where's Mueller when we need him?


-Tony

Posted by: Headrage Jul 26 2007, 09:14 PM

Don't have time to really research it so...

A bump for a friend....

Posted by: Dr Evil Jul 26 2007, 09:56 PM

Very cool! It looks as if the solenoid is for the side to side translation (pre programmed) and the fore and aft is given by the person. That would take some time to design.

Posted by: Dr. Roger Jul 26 2007, 10:14 PM

like this one.

http://www.cats-i.com.au/newpage2.html

and a video of a drifter using it

http://www.youtube.com/watch?v=QZ0L-hkSMlY

Posted by: KaptKaos Jul 26 2007, 10:14 PM

Didn't the MR2 Spyder come with one of these?

Posted by: sww914 Jul 26 2007, 10:53 PM

Beautifully machined piece. My brain just melted trying to understand it. FUUHHHHGHHUUFFUUHH. Bluh

Posted by: URY914 Jul 27 2007, 08:04 AM

WOW!, he must have an awesome set of tools to build that thing.

I gotta give the kid credit, it is sweet.

Posted by: 9146986 Jul 27 2007, 08:09 AM

A sequential shifter is really only for race cars and wouldn't be very good on a street car.

Posted by: brer Jul 27 2007, 10:19 AM

you can use a barrel with a machined groove to run the gear selector.
the barrael rotates forward or backward to change gears.

Posted by: Mueller Jul 27 2007, 12:51 PM

here is one already setup for Porsches

996 and Boxsters...

http://www.cartronic-motors.com/cartronic_sqs.html

Posted by: BahnBrenner914 Jul 27 2007, 01:32 PM

Yeah, paddle shifters sounds like a great idea, for a racecar. I think I might put my ME degree to use in a couple years if I decide to build a race-914 and get some paddles, but as for a road car, it'd be more of a pain.

Posted by: bondo Jul 27 2007, 01:37 PM

Wow, that's crazy. I can't believe he can do all that at the shifter, with no mods to the trans. (if I were to attempt something like this I'd put the mechanical bits at the trans and only use one cable)

Posted by: andys Jul 27 2007, 03:57 PM

Tony,

You can design a sequential shifter if you already have a cable shift set up by using a linear cam to translate gate and selector motions. It's not real complex (think motorcyle, though they use a drum). If you have a shifter rod, then it becomes much more difficult.

There's also this one.

http://www.takakaira.co.jp/performance/ikeyaformula/ikeya_manual.html

Andys

Posted by: zymurgist Jul 27 2007, 04:09 PM

Wow, that's a work of art!

Posted by: 9146986 Jul 28 2007, 11:42 AM

But unless you are only racing, it's a total pain for a street car. OK, coming to a stop, make sure you go through each gear to get down to first.

Cool hardware though, but no good on a driver.

My friend Martin Arnaud said he tried driving a (barely streetable) track car with sequential shift on the street and it was a total PITA!

Posted by: scotty b Jul 28 2007, 06:13 PM

QUOTE(TonyAKAVW @ Jul 26 2007, 06:40 PM)

http://www.honda-tech.com/zerothread/1613435

That is one amazing piece of mechanical engineering. I'm still trying to figure out how that thing even works. I'm also thinking that it might be interesting to see if a sequential shifter could be made using solenoids so that you could use paddles. Where's Mueller when we need him?


-Tony

Posted by: TonyAKAVW Jul 28 2007, 11:54 PM

I was searching for Porsche shifters because I want to rebuild my shifter. I'm planning on a complete ground up design similar to the modern Porsche cable shifters. Then this thing came up and I was stunned. Amazing piece of work. I think I'm still going to stck with a normal H-pattern though.

-Tony

Posted by: jd74914 Jul 29 2007, 03:12 PM

I wish the honda link would work, we must have killed it.


Forgive my ignorance, but with a sequential shifter (of the manual variety IE: without solenoid) the shift lever doesn't return to center does it? If it doesn't than one of these would not be too difficult with make utilizing a cam as stated above.