New Gtr Gearbox Selection

[slw32]

Hey Guys!

Ive got an r32 gtr with 340hp atw but im just in the process of putting on new turbos, computer, inj, ect, and am hoping for a fair bit more power. Problem is that my gearbox at the moment is on its way out (crunches a bit between 1st and 2nd and is generally a little clunky) with the extra power i dont think it will last to long. I was wondering if anyone could give me some advice as to what to do about the box? do i rebuild it or am i better of looking for a new one and if so what type? it gets taken to the strip a little but is generally a daily driver. Any help would be appreciated!

[GTR_Legend]

Think you should rebuild, they are pretty strong.

And aftermarket would cost a fortune.

Maybe ask advan @ Silverwater what is in their R33 gracer, it has 550KW

[Crimmo]

I am also looking at the same thing, my 2nd gearbox let go in a week! :)

Is there any catch to bolting in an R33gtr box? I have heard it bolts in, but does it run fine with the rest of the 32gtr drivline?

cheers

[shanef]

When i looked into this, i found the best way to do it, and the cheapest, was to buy an OS Giken 5 speed gear set and buy new synchros aswell, fit it all back up and hey presto, unbreakable

[N1GTR]

When i looked into this, i found the best way to do it, and the cheapest, was to buy an OS Giken 5 speed gear set and buy new synchros aswell, fit it all back up and hey presto, unbreakable

What sort of price are we talking here?

[shanef]

$3500 for the OS gear set, and then roughly $1500 for assembly and new synchros, could be more, could be less

[N1GTR]

Ok cheers

[slw32]

So, can anyone tell me the answer to crimmo's question? Can you straight bolt up an 33 gtr box and is it compatable? They are stronger arnt they?

CHEERS

[shanef]

Yes you can bolt the 33 box straight up, but if you bolt it up to a pre 93 model 32 gtr, you will have to convert the clutch from push to pull, as the 33 boxes are a pull type clutch. Also I don’t believe the 33 box is any stronger than that of the 32 box, as many people on here have stated.

[KrayzieGTR]

Does anyone know if its possible to swap the bell housing from a R33 GTR box with a 90' 32 GTR housing?!

I have a hyper twin carbon exedy clutch pull type but my 32 is push type. My options are either a bell housing swap or a straight gearbox swap.

Any ideas?!

Cheers

[benm]

I'm in a similar situation Krayzie. My bellhousing has smashed but rest of gearbox appears ok. Not sure whether to just replace entire box with an r33 gtr box or hunt around for a housing with the clutch fork and everything.

[Duncan]

guys you can convert a pull type housing to push pretty easily, you just need the fork and pivot from the push box, and tap the location on the bellhousing for the slave cylinder bolts.

I saw the pic of yours ben....nasty....how did that happen? dropped off the crane or stand?

The internals of the 32 and 33 gearboxes are the same, except for the synchros on the 33 series 3 boxes which are much better....have lasted us a couple of years instead of a couple of months the 32 ones lasted each time

[Beer Baron]

Does anyone know if its possible to swap the bell housing from a R33 GTR box with a 90' 32 GTR housing?!

I have a hyper twin carbon exedy clutch pull type but my 32 is push type. My options are either a bell housing swap or a straight gearbox swap.

Any ideas?!

Cheers

why not just buy a push type clutch, to match your push type car?