S15 6 Speed Into R33

[Quinny]

Just wondering if a 6 speed box from an S15 Silvia could be transplanted to an R33 GTST. It is just a thought, I have no idea what would be involved (bellhousing, crossmember, clutch...?), or which box is better/stronger. I just think that an extra cog in the R33 would be the icing on the cake.

[PT]

S15 box is MUCH weaker than RB25DET box (huge difference in cog width)...you would be better off lookiing at R34 GTR 6spd and dealing with transfer case issue atleast the box will last longer if 6 speed is your thing

[Quinny]

S15 box is MUCH weaker than RB25DET box (huge difference in cog width)...you would be better off lookiing at R34 GTR 6spd and dealing with transfer case issue atleast the box will last longer if 6 speed is your thing

Thanks mate, I had a feeling that might be the case, an R34 box would be alot of screwing around and probably rather expensive for the extra gear. I don't suppose a 350Z box would be any better?

[Count Grantleyish]

Get Supra 6spd, basically identical to r34 g/box and it's RWD g/box. Very strong g/box, Nigel from Racingline Motorsport has oner in his orange Supra that made 575rwkw on stock g/box. But i'm not sure about the fitting of these boxes.

350Z box could be good but if cash isn't a problem as they are pretty new so these boxes could be very expensive. Best to ask Nissan and find out for yourself.

I remember a thread about 34 gtr owner has broken his, and for new gearset from Nissan costed him a lot so he opted for Supra gearset instead, saving him a bundle of cash, and saying the Supra gear ratio is identical to 34 because both g/box are made by Gertag.

[R31Nismoid]

obviously you have not searched.

being the same topic is about 6 threads down from this one