Sequential gearshift in production car?

[Glenno]

That shifter looks craptastic.

There would be far easier pulrley mechanical ways to translate a sequential type movement into a H pattern type movement

[Nitephyre]

:O

Im thinking there is an issue with shifting to 'N' from any other gear than '1'... meaning you dont slip into 'N' between gears

thats why you hold the clutch down, it'd essentially put it in a neutral state

[edo]

Most bikes have a wet clutch too (not ducati though) which allows you to more progressively slip the clutch without damaging it.

Not sure what the advantage would be in having a seq shift if you still had to use the pedal. Bike boxes are designed to not use the clutch on an upchange at least...

Basically a bike gearbox runs along one shaft, & a car one uses several. Its due to the size of the bits & the layout & packaging that they are not the same.

[CT]

One of Ford's AU concept cars a few years ago used a Harrop sequential mechanism on a Tremec manual AFAIK. It was painted in Mexican Fire by PPG too - very schmick.

[edo]

I think you will find that it was a harrop box. You can buy them fairly easily if youve got $20k or so. Quite a few GTRs in Melb run them. They are a pretty angry thing though being sequential dog boxes...not something your going to want to drive every day

[oldcorollas]

ok, draaaaaging this up from a looong time ago i know...

but really, how hard could it be to make up a sequential shifter

the Ikeya one, rather than stated above and in many forums, DOES shift into neutral between gears.
it is basically a standard lower half of gearstick with a tricky upper half. watching the vids on their site, it specifically shows going into neutral between shifts....

but anyway, with a bit of modification to an extension housing, a change in shift rods, and whacking in a shift barrel, how hard could it be for a budding engineer to make one up?

ideas and thoughts? (for RWD, "normal" gearboxes)

the Ikeya one looks ok, but could be prone to a bit of sloppiness due to extra linkages... the barrel shift mod requires a fair bit more effort...

Cya, Stewart

[ox!gen]

Golfgti

[oldcorollas]

the DSG is interesting, but i can't see myself adapting it to a toyota W5X, or T50 box in the near future

[BigMuz]

Doug Nash (Richmond Gear) make a vertical gate shifter that goes forward 1st, back for 2nd, forward for third, back for fourth, forward for fifth.

Can't downshift without going back to 1st though. Looks hell tough but:D

http://store.summitracing.com/partde...5&autoview=sku

[jmac]

Does anyone know of anyone with one of these sequential shifters in Melbourne? And would any of them be in a position to have time/lack of sense to allow me to dismantle one to see the inner workings?

FWIW, they'd (probably without exception) 'all' go to N between each gear. the difference would likely be that you can't 'keep' it in N, as it won't complete the full travel of teh ratchet/upper lever (and hence the entire mechanism) until it's engaged into the gear about to be selected. I'd be surprised if any actually had a 'usable' N between each gear. But I'll happily stand corrected.