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S14 200SX GearBox Bolt Up To GTR Engine?

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ALL GTR Community Regular

ALL GTR

Posted
Posted

A mate of mine wants to buy my old R32 GTR Engine.

Ive heard that an RB25 Gearbox bolts up to a GTR Engine & Also bolts up to an SR20.

So does this mean that his SR20 Box will bolt up to the GTR Engine??

Anyone know about this?

Thanx

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Should do, maybe with some mod.

The S14 Gearbox is quite strong. Much nicer than the S15 one. A number of people have changed thier S15 boxes to the S14, although you loose the gear, you gain strength.

Dunno how it would go with the added torque of an RB26 though. But good boxes for thier money

MSRB26 Enthusiast

MSRB26

Posted
Posted

It would be a waste of time due to the cost and time involved in making an adapter as they do not bolt staright up just as the RB25 box does not bolt up to the SR as it also needs an adapter. It wouldn't last long behind a RB26 anyway. Just use a RB25 5 speed.

ALL GTR Community Regular

ALL GTR

Posted
  • Author
Posted

Thanks for the insight guys. Just wondering what the best option was. He is thinking about the RB26 In an S14 200SX. Adapter plates and so forth would be a piece of piss but I figured that it wouldn't be strong enough.

Cheers,

Rhys

dangerous_daveo Grand Master

dangerous_daveo

Posted
Posted

So what do S14 drivers upgrade to when they get big power behind the SR20s??? I thought they kept the same box... so I would have thought it would have been fine unless he went insane on the engine and took it past what you could do to an SR.

MFX Contributor

MFX

Posted
Posted
People with big power SR's quite often run a RB25DET box with a modified bellhousing.

A GTR gearbox with the transfer case "removed" will fit into the S14 tunnel with only slight mods. :rofl:

The RB25 box is basically that. As far as I am aware, the RB25 box has the same internals as the GTR box, just without the transfer case...

Jeff.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

yeah, people charge upto $300 less ive found for a GTR box as opposed to an RB25 one.

that said, shopping around can net you either at a cheap price if you are patient.

I laneded my 25 box for $1300 and that included the whole tailshaft etc

GTR-Ben Proficient

GTR-Ben

Posted
Posted

Maybe different in NZ.. I can pickup a R32 GTR box for under $1000. A 25T box is $1500-$2000.

The box I am running in my Silvia was a RB26 box that had been in an accident and had a hole in the transfer case... so I got it even cheaper.

Just had to cut the side off it and weld it up.

Steve Grand Master

Steve

Posted
Posted

Sounds like it would be cheaper to import an RB26 box from NZ than to buy local.

SR20 bellhousing WILL NOT fit RB26. The SR boxes start to have difficulty around 260rwkw, depending on how you drive.

RB25 boxes do fit on to S14, with modified tailshaft, shifter and differnet cross member (sr20 auto cross member from memory). Also, you may have to modify the tunnel slightly.

D1 garage would be able to provide the bits as they do full convedrsions, ie, rb gearbox to SR20.

ALL GTR Community Regular

ALL GTR

Posted
  • Author
Posted
Sounds like it would be cheaper to import an RB26 box from NZ than to buy local.

SR20 bellhousing WILL NOT fit RB26.  The SR boxes start to have difficulty around 260rwkw, depending on how you drive.

RB25 boxes do fit on to S14, with modified tailshaft, shifter and differnet cross member (sr20 auto cross member from memory).  Also, you may have to modify the tunnel slightly.

D1 garage would be able to provide the bits as they do full convedrsions, ie, rb gearbox to SR20.

Thanks for the info.

We can do all the mods and conversions ourselves. I was just wondering whether or not is would bolt straight up or if it required modding. We will settle with a RB25 box just wondering if it was worth running the SR for a bit but I don't think it will be worth it.

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