Finding a solution to breaking gearcases on high power Rs

[Kenny]

They could/would use the original casing as a base then add extra thickness to the week area and build in some external ribbing, make a patten then use it to re-cast a new casing..
Shame we did not know anybody who works in a foundry (dying art these days). Then you would have to machine the inner casing to original spec.... I used to work in a place that could have done all of this no problem but it closed down years ago.
It does not have to be a gearbox specialist as they will also use a foundry to produce the final casing....does anybody know of a Foundry and Engineering company like this? I know its a long shot but worth a try.
Also very interested to see what Ian will do at Hi-Teq...
Cheers
Phil

Afternoon all, I work for a tooling company within the Montupet Group and have 2 foundries within a 100 mile radius. I have been watching the thread with interest for a few reasons obviously but unfortunately I imagine there would only be a very, very, very long shot of us being able to get help here due to the numbers involved - our normal work has been tools & dies for cylinder heads and wheels for Renault, Peugeot, Ford, etc, etc and then off they go to various foundries around the world. More recently we're in the process of specialising in wheels and producing them from billet alloy, for example various Renault prototype cars.

Maybe if we could dig up a casing between us over here it would be worth me asking a few questions too - I'm owed a few homers!

But failing that even though we work with smaller jobs and reverse engineering, etc we're likely to be (possibly very) expensive but you never I suppose.

Does anyone have an end case and/or main case lying about this side of the water :?: :?: :?:

Kenny

 

[KRS]

If a new casing proves a success, then im sure a lot of R owners will eventially want one. I broke my casing with less than 300bhp.

As for the costs envolved in making the thing in the first place... Is that not the risk of the company looking to make a profit out of it???

If I was able, I would build a complete strenthened gearbox... Give it a resonable price tag, save people having to find reliable gearbox builders and sit back waiting for buyers.

 

[Fast Guy]

I broke my casing with less than 300bhp.

What clutch/gearset did you have? :shock:

 

[ashills]

just been re reading and no ones mentioned the nismo plate that they had in japan there muct be some info on this somewhere??

 

[KRS]

What clutch/gearset did you have?

OS Giken Twin plate & a standard box

My engine was rebuilt by Prime Garage and is of an unknown spec, but i was only running .8 on a standard Tubby and TMIC. Dont see it making anywhere near 300bhp.

 

[Fast Guy]

What clutch/gearset did you have?

OS Giken Twin plate & a standard box

My engine was rebuilt by Prime Garage and is of an unknown spec, but i was only running .8 on a standard Tubby and TMIC. Dont see it making anywhere near 300bhp.

Neither can I if it had standard cams as well.
Interesting to see you also had an OS Giken twin plate clutch, the same as all the others (as far as I know)
Has anyone killed a gearcase not using an OS Giken twin plate?

 

[Dooie Pop Pop]

Personally I would rather have a new steel end casing than some bodged looking brace (no disrespect Sid)

me too! but in the mean time im still gonna go for the bracing now and add the casing as well later on when its available (xmas 2006) just for piece of mind

Stu

 

[Kenny]

Does anyone have the external dimensions of the main & end cases to hand???

 

[Rishi]

What clutch/gearset did you have?

OS Giken Twin plate & a standard box

My engine was rebuilt by Prime Garage and is of an unknown spec, but i was only running .8 on a standard Tubby and TMIC. Dont see it making anywhere near 300bhp.

Neither can I if it had standard cams as well.
Interesting to see you also had an OS Giken twin plate clutch, the same as all the others (as far as I know)
Has anyone killed a gearcase not using an OS Giken twin plate?

Not that i know of..... But then how many people are running twin plate clutches that aren't OS Giken...


Rishi

 

[pete-r]

This is the best thread on here for ages.Surely looking back at what the japanese have done with big power R,s would be of some help?,or did they hit the same stumbling block?

 

[pete-r]

Also has the bracing been tested? as i can forsee a couple of problems that you wouldnt get with a whole new strenthened casing.

 

[Keira]

Also has the bracing been tested?

only as far as its been fitted for a while, launched on numerous times with the os giken and nothings broken yet.

have to wait and see how it holds up next year when he changes spec, if nothing else happens i'll be trying one

 

[ChrisS]

only as far as its been fitted for a while, launched on numerous times with the os giken and nothings broken yet.

Theres quite few cars without a brace that have done this though. Lous box is beetlejuices old one thats done numerous launches without problem before lou got it.
The only way we'll find out that the brace doesnt work is if a casing eventually goes with one on it.

 

[Keira]

Theres quite few cars without a brace that have done this though. Lous box is beetlejuices old one thats done numerous launches without problem before lou got it.
The only way we'll find out that the brace doesnt work is if a casing eventually goes with one on it.

exactly :lol: :lol:

 

[ChrisS]

--------------------------------------------------------------------------------

just been re reading and no ones mentioned the nismo plate that they had in japan there muct be some info on this somewhere??
_________________

Anyone know about this? Did they use he same casing and box on the works rally cars :?

 

[Rishi]

--------------------------------------------------------------------------------

just been re reading and no ones mentioned the nismo plate that they had in japan there muct be some info on this somewhere??
_________________

Anyone know about this? Did they use he same casing and box on the works rally cars :?

Been trying to find out more about this...

Ian used metal plates on the Group A GTi's which worked fine...

The NME boxed used an external diff.... Now either the casing is different or there was just a big space left in the box...

Still trying to find more info...



Rishi

 

[ChrisS]

Still trying to find more info...

Nice one rishi

Did you find out if the big power jap r's using the OS clutch used any form of brace?

 

[Rishi]

Still trying to find more info...

Nice one rishi

Did you find out if the big power jap r's using the OS clutch used any form of brace?

No they just WPC treated the gearset and casing...


Rishi

 

[Rishi]

Looking back they actually WPC treated the Pistons, Rocker arms, Driveshafts, Gearsets and Casing... Its like the whole car is WPC treated so that it is stronger and more friction free...



Rishi

 

[Fast Guy]

Lous box is beetlejuices old one thats done numerous launches without problem before lou got it.
The only way we'll find out that the brace doesnt work is if a casing eventually goes with one on it.

Did Beetlejuice have an OS Giken twin plate clutch as Lou's has only recently been fitted, he was on the exedy uptil then.