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-   -   sequential transmission (https://www.rx7club.com/1st-generation-specific-1979-1985-18/sequential-transmission-787099/)

phalerider 09-15-08 01:55 PM

sequential transmission
 
My search did not give up much info beside folks that want to do the same one day.

Does anyone have any info on a sequential for FB's?

Or have you driven one?

djessence 09-15-08 01:57 PM

People have put in what i believe they call a "dogbox".

This is an extremely expensive option that only the hardcore of racers put in. I believe Norwegian Rotary has one in his 20B race car. And few others have them

I recall reading something like 5g just for the tranny, plus all the custom work of bolting it up and mounting it etc, which for most of us is a multiple of what the car cost in the first place.

bliffle 09-15-08 02:04 PM

I think that a DCGB, Dual Clutch Gear Box, which is electrically controlled, could be used this way. In fact, I think they already are.

-xlr8planet- 09-15-08 09:01 PM

I hope you have a money tree in your back yard.

hks had a 13brew 6 speed sequential. I was worth more than both your kidneys
:D

stilettoman 09-17-08 10:59 AM

The first generation RX-7 was available with a sequential gearbox from the factory - a 3 speed automatic, and for 1984-85, a 4 speed automatic. It could be shifted manually or automatically.

If you want a manual gearbox gearbox which can be shifted sequentially, just go buy a new Ferrari.

Starfox07 09-17-08 11:08 AM

Hewland makes a variety of sequentials for different applications and you could probably get one of theirs to work. But as stated in this thread, they are enormously expensive.

To give you an idea: http://www.hewland.com/svga/2008_Price.pdf

Edit: One of this is around $50,000!!! Wow!

Edit2: There is also a company called Ikeya that makes shifters that convert a standard H-pattern shifter to a sequential movement, but from what I've seen the results are average at best.
http://www.ikeya-f.co.jp/en/product_...n_shifter.html

djessence 09-17-08 03:57 PM


Originally Posted by stilettoman (Post 8561665)
The first generation RX-7 was available with a sequential gearbox from the factory - a 3 speed automatic, and for 1984-85, a 4 speed automatic. It could be shifted manually or automatically.

If you want a manual gearbox gearbox which can be shifted sequentially, just go buy a new Ferrari.


Now it could be I'm retarded(sure hope not) but i see a few things wrong with this post so I will try to be informative.

An automatic gearbox is NOT a manual, in any way shape or form.

A electronically controlled gearbox (similar to ferrari or audis or even some peugoets) are sometimes automatics, and sometimes manual sequantial gearboxes. I think as bliffle stated these are usually the DCDG or whatever. For example, a dodge charger is an automatic you can tell when to shift, but you still get an automatic like response, where as an aston martin vanquish is a electronically controlled manual sequential, still slower response and a yamaha r1 (or any street bike) is a sequentiel, very fast response

A perfect example of a sequential gearbox is a motorcycle.

Starfox07 09-17-08 07:50 PM


Originally Posted by djessence (Post 8562579)
Now it could be I'm retarded(sure hope not) but i see a few things wrong with this post so I will try to be informative.

An automatic gearbox is NOT a manual, in any way shape or form.

A electronically controlled gearbox (similar to ferrari or audis or even some peugoets) are sometimes automatics, and sometimes manual sequantial gearboxes. I think as bliffle stated these are usually the DCDG or whatever. For example, a dodge charger is an automatic you can tell when to shift, but you still get an automatic like response, where as an aston martin vanquish is a electronically controlled manual sequential, still slower response and a yamaha r1 (or any street bike) is a sequentiel, very fast response

A perfect example of a sequential gearbox is a motorcycle.

Yep. Any manu-mated automatic still has a planetary gearset, which is slow (unless you put a shiftkit in it where it turns jerky instead) and saps power through the fluid coupling.

Manual:
http://static.howstuffworks.com/gif/...peed-gears.gif

Auto:
http://www.samarins.com/maintenance/...ansmission.jpg

Sequential: (the ratcheting mechanism that does the sequential..ness)
http://static.howstuffworks.com/gif/...ector-drum.jpg

CVT: (really weird, sounds annoying)
http://www.edmunds.com/media/ownersh...am/cvt.350.gif

djessence 09-17-08 08:00 PM

CVT, found in snowmobiles.
Good pics Starfox! Didn't wanna get all technical about fluid coupling etc in case I made an idiot of myself lol

Jeezus 09-17-08 08:38 PM


Originally Posted by Starfox07 (Post 8561701)
Hewland makes a variety of sequentials for different applications and you could probably get one of theirs to work. But as stated in this thread, they are enormously expensive.

To give you an idea: http://www.hewland.com/svga/2008_Price.pdf

Edit: One of this is around $50,000!!! Wow!

Edit2: There is also a company called Ikeya that makes shifters that convert a standard H-pattern shifter to a sequential movement, but from what I've seen the results are average at best.
http://www.ikeya-f.co.jp/en/product_...n_shifter.html

Lol, on the link with the videos, the RACE(LANCER EVO) one (2nd from last row, on the left) has an FD parked on the inside of the track halfway through. How I spotted that I don't know.

Starfox07 09-17-08 08:43 PM


Originally Posted by djessence (Post 8563271)
CVT, found in snowmobiles.
Good pics Starfox! Didn't wanna get all technical about fluid coupling etc in case I made an idiot of myself lol

CVT is also found in a few Nissans, like I said they sound really annoying.

http://www.youtube.com/watch?v=LlWYTnaDnK0

justint5387 09-18-08 12:07 AM


Originally Posted by stilettoman (Post 8561665)
If you want a manual gearbox gearbox which can be shifted sequentially, just go buy a new Ferrari.

I don't think you know what he is talking about...

Yellow S2 Rx7 13BT 09-18-08 12:27 AM

Ikeya formula stuff is extremely good.......
their suspension is absolutely gourmet!!!!!!!!!!
I have seen an R33 GTR with a sequential shift adapter, working and it was awesome.....
dont quote me but i believe Imamura that drives the Apexi S6 in JapD1 uses one????
I have seen other cars on HOT VERSION where Orido and Tsuchiya were impressed with the seq operation.....
I was impressed enough to enquire about the cost....1500ish AUS dollars
but i think they would only suit FD boxes, so wouldnt suit me anyways, again dont quote me.....

djessence 09-18-08 12:50 AM


Originally Posted by Yellow S2 Rx7 13BT (Post 8563949)
Ikeya formula stuff is extremely good.......
their suspension is absolutely gourmet!!!!!!!!!!
I have seen an R33 GTR with a sequential shift adapter, working and it was awesome.....
dont quote me but i believe Imamura that drives the Apexi S6 in JapD1 uses one????
I have seen other cars on HOT VERSION where Orido and Tsuchiya were impressed with the seq operation.....
I was impressed enough to enquire about the cost....1500ish AUS dollars
but i think they would only suit FD boxes, so wouldnt suit me anyways, again dont quote me.....

you've been quoted.

Anyways, yea id have my doubts about how well they would work.

Not gonna lie, i would love to have a seq box but would NEVER be able to justify the cost, especially on a cheap car lol

Yellow S2 Rx7 13BT 09-19-08 02:26 AM

theres always one isnt there........
http://www.youtube.com/watch?v=QZ0L-hkSMlY
have a look for urself....theres plenty other footage too
just depends how cheap u are really....lol
my car isnt cheap anymore!!!


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