So here’s the story, within then next year or so, I’m planning on Making some serious power with my SR (~500 whp hopefully). I know that sounds pretty far off, but I prefer to have everything ready beforehand.
My current SR trans. is pretty much about to blow up, input shaft bearing is completely shot (I honestly don’t know how it hasn’t just exploded yet with the amount of noise it’s making), 1st and 4th gear synchros are toast (can thank track abuse for that).
This is the second SR tranny I’ve been through so far in the last couple years, the last one had the same input shaft bearing problem, and 4th/5th gear synchros were toast from when I got it.
Now I know I’m not exactly gentle with my cars/transmissions, but I know I don’t shift THAT horribly to have these problems keep occurring. I drive it pretty easily, obviously except when I’m at the track. However even at the track I don’t pull those honda-bro power shifts.
I was looking around at some conversions, Z32, Z33, etc. I was wondering if anyone had any first-hand experience with anything of this nature, and if you’d be able to provide some insight on what would be the most cost-effective/reliable solution.
For example, would I be better off going with a Z32 conversion, or would it be more cost effective to get my current transmission built/rebuilt to handle the extra power that I’m going to be putting through it?
i’m not an expert in this, but i’m going to say that doing a transmission conversion (z32, z33, rb25) will be much better then getting your sr transmission built. i’m pretty sure a set of solid gears for an sr transmission are close to $3k.
the z33 trans has really a low final drive (3.54?) so the gearing won’t be ideal for you…
the 3.3L pathfinder fs5r30a is the same as the z32’s rs5r30a with only major changes to the outside/shift fork/starter, equally strong, more plentiful, it’s geared more for torque than the z32 version as z32’s have relatively high final drives (3.9-4.11)
Okay, so a little update, sourced out an almost complete Z32 swap kit, only thing missing is the driveshaft.
I know it has to have the Z32 slip yoke, and the standard S13 rear flange, I just don’t know how long the drive shaft has to be. I’ve looked on google for the past hour with no luck. I’ve found places in the states that sell them pre-made, but don’t list any specs on them. I don’t want to pay an arm and a leg for cross-border shipping when I can have a local shop make it for me for cheaper and avoid all that hassle.
Does anyone know the measurements I would need to give the shop for them to be able to make me one? I assume its just length, what type of U-Joints I want, and what yokes/flanges to put on.
If you even find that measurement on the internet are you willing to trust that number? Install everything first and measure from the rear diff flange to the face of the transmission spline. That way you’ll be 100% sure and won’t need to make a 2nd drive shaft.
True, info on the internet isn’t exactly always trustworthy, but if someone (reputable) had any info on it, I would be inclined to listen. I want as little down time on my car as possible, since it’s my only one at the moment
driveline shops all have their own preferred way of measuring too, some like face to flange, some like u-joint to u-joint etc… best to take a bunch of measurements and make a diagram, then they can figure out what the maximum length would be in whatever language they speak
I already have a z32 conversion in my posession… just waiting on a driveshaft.
I don’t understand you people’s mentality. Why would you waste money on a tranny you know will break over and over, insead of spending the money once and not have to worry? lol.
You can, but there’s a bit more involved with that swap (not to mention they’re more expensive), and IMO, isn’t worth it over the Z32 unless you just have a raging hard-on for a 6-speed trans. The gearing is actually pretty good though.
If I find myself with too much time on my hands later, sure lol.
They’re even worse… people have broken them with 350whp. They basically took the 5 speed tranny, and made the gears smaller/weaker so they could fit an extra gear in the same amount of space.
