Jump to content
SAU Community

Recommended Posts

I think you might be surprised as to how much difference there is between the two gearboxes. Don't forget the S15 has a turbo, so the torque output is pretty high.

Nevertheless, I would vote for the Z car box over the S15 box. I mean, people with S15s were famously replacing the 6 speeders with 5 speeders because the little SR20 5 speeder was stronger.

I think you might be surprised as to how much difference there is between the two gearboxes. Don't forget the S15 has a turbo, so the torque output is pretty high.

Nevertheless, I would vote for the Z car box over the S15 box. I mean, people with S15s were famously replacing the 6 speeders with 5 speeders because the little SR20 5 speeder was stronger.

Maybe, I am not really familiar with the s15 boxes. But my observations have always been that gearboxes suffer the most stress and damage when they are suddenly shocked with lots of torque in a small space of time. The sr20 engine doesn't really fit into this category, even with a turbo. Sure torque output on an turbo s15 can be high, but its usually up high and once the clutch engages and everything starts building momentum the stress on components is much more linear and manageable.

Driving like an idiot is not accounted for of-course. That's why you get lots of broken drive train components and mounts because people are dumping the clutch on wide after-market wheels with grippy tires and high output engines on cars that were never designed to handle that kind of abuse.

Edited by sonicz

Will a 350z box Bolton the R34gtt though also are they any stronger than Rb25 boxes. Could be a good mod for economy and possibly higher speeds.

And no it won't bolt on. Assuming that they are common with the big frame Nissan 5 speeders (big assumption, almost certainly wrong), you have to build up a box using appropriate front and rear halves. Otherwise you're into the territory of using adapter plates. I'm pretty sure that this is how it has to be done. Plenty of VQ into R chassis conversions using the original R chassis gearbox have been documented with adapter plates, and I don't think I've ever heard of someone Frankensteining two halves of the different gearboxes together.

Frankensteining can be done with VG gearboxes, because only the bellhousing half of the box is different.

  • 5 months later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Pads for R32 GTS-t, R32 GT-R non V-Spec (Sumitomo), R33 GTS-t and R34 GT-t are all interchangeable. R34 GT uses a 2x piston caliper, hence it didn't fit.
    • Checked with amayama and nope, the full S2 manual set is not available anymore. Unsurprising, but still disappointing as the ? on availability gave a glimmer of hope.
    • I've heard the Tomei USA head gaskets are decent if you want to o-ring the heads but otherwise not recommended.
    • The 296mm rotors are the R33 turbo brakes. The 310mm rotors are the R34 turbo brakes. The calipers are nearly the same, but not. They're the same caliper but the R34 caliper has longer legs so that it sits out far enough to go over the rotor. The pads are the same for both. When you say, "I bough tsome EBC"....did you just mean pads? Or rotors? 310mm rotors fit under 17" wheels. There may be some wheels without enough clearance though. I can't fit my fingers between the barrel of my wheel and the "corners" of my R34 calipers, but there is plenty of room behind the spokes. This is on Enkei RPF1. You can fit 324mm rotors inside a 17" wheel, but I'd be willing to bet that it would be close to impossible with the Nissan/Sumitomo caliper (using an adapter, of course), because the Sumitomo caliper is fatter than the Brembo caliper that is supposed to go on the 324mm rotors.
    • Hi. Can someone tell me what brakes(and mainly WHERE) can i buy brakes on R34 GTT? I bought some EBC which SHOULD go on my car(i have GT but it has GTT brakes) but it does not fit, Brakes are "too" small(296mm) Are 310mm be good or? I have 17 inch wheel so no "big boys" but for me driving i just need one that fits and i can get here in EU/Czech.
×
×
  • Create New...