S14 200SX GearBox Bolt Up To GTR Engine?

[ALL GTR]

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

[teejay]

you would be nuts to , they are nowhere near as strong

and they would only fit with modifications and adaptor plates etc

[R31Nismoid]

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]

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]

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]

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.

[GTR-Ben]

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.

[discopotato03]

I did compare an S13 box to a GTST box once , the RB bellhousing is shorter but should fit the SR20 gearbox . If so then it would bolt to any RB block , torque limitations could be an issue behind a healthy RB26 .

Cheers A .

[MFX]

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.

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.

[GTR-Ben]

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.

Correct, but I have found the GTR boxes to be a lot cheaper and easier to get..

[MFX]

Correct, but I have found the GTR boxes to be a lot cheaper and easier to get..

Really. That is one to keep in mind.

Jeff.

[R31Nismoid]

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]

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]

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]

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.