differences between rvr and libero/gsr auto boxes

[envyit]

what are if any differences between the rvr turbo auto box and the libero/gsr turbo auto boxes? can the libero box mount to the vr4 4g63t the way the manual box can easily or will it not fit? what about internal differences? I have the IPT rebuild kit along with a 1g converter I got from them. when I originally spoke to IPT they said they hadn't heard of the code from the 93T box w4a331FQ6 vs the rvr code of W4A331FM6 or should I just get a rvr box and be sure and done?

 

[4piknup]

Dunno. Hopefully rockabilly will let you in on a few of his secrets

 

[Rockabilly]

The 1G turbo autos are all the same dimentions.
VR4 has a 3.6 front & 1.090 t/c. underdriven rear by 0.007
RVR has a 3.55 front & 1.074 t/c. underdriven rear by 0.002
I can supply custom auto diffs etc. PM if you are interested.
Cheers

 

[Benzo4gT]

RVR has a 3.55 front & 1.074 t/c. underdriven rear by 0.002
I can supply custom auto diffs etc. PM if you are interested.
Cheers

Is this the case with all rvrs? sry for thread hijack, just curious.

 

[Rockabilly]

Is this the case with all rvrs? sry for thread hijack, just curious.

SSG & HSG turbo autos yeah
Non turbo awd auto is 3.8 - 1.074 - 3.545
Cheers

 

[4piknup]

what are if any differences between the rvr turbo auto box and the libero/gsr turbo auto boxes? can the libero box mount to the vr4 4g63t the way the manual box can easily or will it not fit? what about internal differences? I have the IPT rebuild kit along with a 1g converter I got from them. when I originally spoke to IPT they said they hadn't heard of the code from the 93T box w4a331FQ6 vs the rvr code of W4A331FM6 or should I just get a rvr box and be sure and done?

Mate I think they are pretty much the same. Maybe the gsr auto has a different diff ratio  but either should bolt up or interchange. They will both have the roll stop mounts on the gearbox so thats fine. I would think that the starter plate and starter will swap between rvr to gsr autos.The itp kit should fit ok.This is only bits I have picked up from here and there. Im not a guru on these autos.Oh. I see you are mating to a vr4 engine. In what body?You will have some trouble getting a 6bolt flex plate. (I got a kiggly one) and remember the bush for the back of the crank.Mounts you will have to work out and mod as required. .Good luck

 

[envyit]

thanks for the replies. the car is a cd5a gsr, tube framed front, all mounts are made from scratch including a new north/south bar, im also going to mount the engine to the front tube and the chromoly front subframe I have since the vr4 block has provisions for it will make it easier if I have to rermove the box in the future. I have the kiggly flex plate and the bush already.

 

[4piknup]

Sounds pretty serious.
I dont think you are building it for time attack. Sounds like a drag build...
Woohoo
Maybe you should chat more to rockabilly. He has some goodies to go in those boxes.
Members ride- streeter v2 has one in his car. Will be awesome to see that run down the track

 

[Rockabilly]

thanks for the replies. the car is a cd5a gsr, tube framed front, all mounts are made from scratch including a new north/south bar, im also going to mount the engine to the front tube and the chromoly front subframe I have since the vr4 block has provisions for it will make it easier if I have to rermove the box in the future. I have the kiggly flex plate and the bush already.

You can use a VR4 or RVR or GSR or LIB auto. No need for box roll stopper mounts if you are roll stopping at the motor instead.
Cheers