i have I have been doing some research on FS5R30A/RS5R30A manual gearbox from Z31/Z32 Turbo; I have been working on converting from an H paten to a Sequential gearbox by removing the side of the box and removing the gear stick shaft and replacing with a sequential unit. I know it a bit mad but hay why not...! “Flappy paddle shift”.......! Right does anyone know the bell house bolt hole dimensions for above gearbox/ room under transmission tunnel, and does anyone have a gearbox which gears or bearings have gone which I could buy, if you can help please email me @ iain.knight@tesco.net :smash:

Hi Mate, I have a RS5R30A from a Z32 Twin Turbo that would benefit from rebuild. It works fine with good syncro's but has a noisy bearing from being run briefly low on oil, possibly layshaft bearing.

 

a Decent box will fetch £500, so I was looking for about £150 for it.

i have I have been doing some research on FS5R30A/RS5R30A manual gearbox from Z31/Z32 Turbo; I have been working on converting from an H paten to a Sequential gearbox by removing the side of the box and removing the gear stick shaft and replacing with a sequential unit. I know it a bit mad but hay why not...! “Flappy paddle shift”.......! Right does anyone know the bell house bolt hole dimensions for above gearbox/ room under transmission tunnel, and does anyone have a gearbox which gears or bearings have gone which I could buy, if you can help please email me @ iain.knight@tesco.net :smash:

 

If only you'd have posted this up a day earlier! I had my gearbox off because I'm in the middle of a rebuild.

 

Anyway, top project!! Keep us informed of it's progress please as this is of interest to me. :bow:

u checked this bit of kit out? http://www.ess-racing.com/

u checked this bit of kit out? http://www.ess-racing.com/

Thats for Auto's. He's talking Manual's.

oooops (i knew that) lol.

It’s a nice bit of kit for a auto, but working on a manual with a shift cut up changes and a plip on down gear changes, the more gears the better it think...! you mite of seen some of my work in PB mag, A ZXR400 bike with a 600cc engine and a few other bits..! so a challenge is what i do for fun....!!!

There is a another member in Haverhill (DEVIL) with a gearbox for sale and i live in Hadleigh near Sudbury so i could pick up with a trailer.!

It’s a nice bit of kit for a auto, but working on a manual with a shift cut up changes and a plip on down gear changes, the more gears the better it think...! you mite of seen some of my work in PB mag, A ZXR400 bike with a 600cc engine and a few other bits..! so a challenge is what i do for fun....!!!

There is a another member in Haverhill (DEVIL) with a gearbox for sale and i live in Hadleigh near Sudbury so i could pick up with a trailer.!

 

 

How long ago are we talking for this ZXR400/600? Years ago? I remember a feature many moons ago being done in Performing Berks ;) :) :D

 

 

Would you have to change the internals of the synchromesh back to a dog arrangement for this to work without the clutch?

 

Regards,

 

Rob.

The bike was in PB mag about August 2006, in the shed section and also I showed the bike at the Copdock bike show that year, right back to things in question.....! a dog box like a bike is smaller because of no synchromesh but with or without synchromesh you can go up and down the gears without the clutch, the thing is you have to get the rev’s just right or there would be a bit of a gridding noise....!, I shall only using the clutch in 1st gear to take up drive and the same in reverse, all other’s I’m going to use the clutch similar way you can on a bike, if any of you have bikes you would get what I’m getting at....!

Quite a few of us do have bikes on here ;) My father donated his CBR600 to me, I just need to get off my ass and pass my test :rolleyes:

 

Back to gearbox, are you sure it will work without the clutch? I've driven cars before when the clutch is gone and you have to be very accurate with the revs for the gear to engage (as you well know I guess).

 

Unless you're going to actuate clutch hydraulicaly some how?

I planning to use a little black box with timing switch on mille seconds to cut the ignition and to blip the throttle at the right time with gear change also in mile seconds, I not planning to use the clutch but if the need is required I could use it to feather it a bit.

This is the link for the bike http://www.pbmagforum.com/forum3/406.html

Well all, i have 1/2 gear, 3/4 gear, 5/r gear all sorted out now, i have removed 8 separate parts to allow me go down the sequential root. I have a few ideas on how to get the gear box/gear lever to work but in main the gear box is done and can be bolted up...! for the last time...! i’ll try and upload some pic’s soon.

OK so clarify this...

 

Have you changed the internals for a dog engagement setup?

I have not changed for dog set-up yet...!, i think quaife do a kit for the skyline which i’m looking to, all i have done is to get the selector fork(s) to work and i have a good idea for the selector/ increment unit to replace the gear lever with a lock out for the reverse gear.

just up loaded some pic's

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it's just on going work, more to come...!

 

 

 

Try that fella! :)

thanks, i'm using imageshack to post the pics, it's a bit of pain to upload, anyway using a dog box will be the long term goal but for now i’m going stay with the old internals, it’s not imposable to change gears but the timing has to be spot on or a big bag comes to mind but as a long term project and also funds as the dog box is a few pounds a bit of saving would be called for.....! Or sale of used trim parts as most of its going to be stripped out and a roll cage put in.

Well i've hard at work...! I think i've got it all planed out so I'm just finnishing up the drawing so I can start making a mock up before I start the real thing.

By iainknight

i'll let you know how thing go when I get there...!

http://img249.imageshack.us/img249/8130/gearboxog1.jpg