GTSBoy

You talking speed sensor? Not that it matters, because the answer would be no regardless of which one you meant.

'Snot that simple. Rear rotors are only 18-20mm thick (or whatever they are). Front rotors are 30-32mm thick (depending on which front brakes from which car). You can't make the front calipers work on rotors as thin as the rears. So now you need custom rotors, and teh handbrake is in the rotor hub, so that throws another spanner into it. In reality, the front calipers also have about 3 times too much piston area, if even you put man brakes on the front. The rear brakes are already a bit too aggressive on R32s as is. If you want 4 pots on the rear, then you're going to need calipers with only a little more piston area than the original 2 pots, that will happily sit on the skinny rotor.

Um....what makes you think that the MFD runs from the ECU? I would have thought that the MFD would be its own thing and just pick up the data that it needs from the various CUs on the serial bus.

It's Steve. No. It's Alan. No, it's Steve.

Yuh, that's my point. 3 injector drivers, 3 coil drivers. These are in pairs, so the chances of getting them wrong between near identical engines is really small. It's firing the opposite cylinders at the same time, every revolution of the engine. Just wire it up. If it fires, you got it right. If it doesn't, there's only 2 more permutations of connections to try.

There is only one set of specs on the wikipedia page for RB25DET Neo. Hardly matters. All RB25s have the same bore and stroke anyway.

Auto ECU gives no fark for presence or absence of auto TCU, especially once you Nistune it and can f**k off any codes you don't want to see.

Given that those shitty old things are batch fire injection and wasted spark only (on 6 cylinders), I would have thought you'd have precious little chance of getting it wrong. Just send it.

ebay, JustJap, Nengun, Kudos, Amayama. There's more, of course. Just this lot off the top of my head.

Yup. Donuts are stupid. Lots of power made, no airflow over your cooler.

You have a broken wire or a short of some sort. Break out the wiring diagram and chase the circuits that involve the ignition and the knock sensor and see where the power and earths and common points are. If you cannot manage that - take it to an auto eleccy now.

Pretty sure Subie calipers have different ear spacing.

FFS! It's your thread!

You never really need Brembos on the back of anything. So, if it's just necessary to have the back ones say "Brembo" to match the front, you can just grind the Nissan off some Sumitomos and put a little Brembo sticker on them.

Perhaps unsurprisingly, there's already a whole thread on that topic, which should go at least partway to explaining my slightly flip answer.

There are no vacuum lines associated with VVT. It uses angry pixies and compressed slippery.

You want at least a GT35 sized turbo. The VQ25 turbo will be damn near on boost at idle and out of breath at 4000rpm. Not good.

Should have put a handful of confetti & glitter in there.

Under the inner pivots of the front lower control arms. Nowhere else at the front end is safe. Not under the crossmember. Not under the chassis rails. Not on the side rail jacking points. If your chassis stands are too fat at the to to fit on the pivots, get the angle grinder out and remove some metal from the stands. Under the inner pivot at the rear too. Almost nowhere else is any good at the rear.

Well, obviously you can't put the Z32 onto the stock ECU, so unless this was specifically for one of your ECU upgrade options, forget about it. I would not install shitty old 555cc injectors into anything these days. Man up, buy 1000cc ish Bosch EV14 based injectors (or Siemens or Denso, or anything of the same vintage as EV14s) and win at life. Better spray pattern, much much better spray at low pulse widths, even though they are double the size of the 555s. Also, much more headroom for E85, The potato is famously mismatched for an RB25 unless you really only want to have what you have now (which is a responsive street car that falls off at the top end). It might make a bit more power than it does now (given an ECU, some more boost, and possibly the E85), but the back end is really a restriction to how far you can go. You should just search on these forums for the many many posts on what it is good for. A street turbo that boosts fast, but not a high power turbo. Keep in mind that it is half of an (upgraded) twin system used on GTRs....basically the same engine, but only half the turbo. E85 will certainly help the chokey rear end because it reduces exhaust temps. If you want E85 only, the PFC is the easier option, as you just buy it and plug it in. It can't do flex, but you don't have to source an RB20/VG30 ECU, do the extra wiring, etc. If you want flex, your only choice (of the 2 options) is Nistune. Yes, lots of people are running flex off of suitably feature packed Nistune ECUs. As if you would not buy a bloody Consult cable and a Nistune license if you were going Nistune!!!!! Would anyone actually consider living without it? Many people have experience with both. It is very clear that the Z32 ECU is not a great choice. It works, but it is just not quite right in a number of ways. The R32 ECU can now be made to do absolutely everything that is needed for an RB25, and so is the clear standout Nistune option. Yes, but I would not go to the expense of setting up for E85 for a small turbo application. The returns will be too small to justify the cost. You want more power? Put on a bigger turbo.

Also, have a look at Performance Forums, for postings going back a few years now by Nelsonian (or some name like that with numbers on the end), talking about considering and then actually doing "cheap eBay aero" on his fast Falcon Turbo. IIRC there is a lot of very good learning in there. The upshot is that what Hardsteppa said is true. The eBay aerofoils can be fine. Ultimately, all this learning already exists anyway - you just have to dive down the rabbithole to chase it. There was massive work done by NACA on aerofoil profiles and there have been numerous studies of how each of these perform when used upside down (ie, on a car), with lots and lots of "if you're doing A, choose aerofoil B. If you're doing X, choose aerofoil Y" type advice available. Just have to search it out, and maybe buy the occasional actual paper book.

To be fair, 98.37% of the Australian driving population are completely stumped by them also.

The usual answer is "don't take it on unless you are able to do it yourself". Perhaps that's less so for gearbox conversions than turbo engine swaps, but it's been the usual advice. However, where there are availability issues and the price difference is that wide, sure it's practical. I did it to my R32 many many many years ago. It's not difficult, just need all the things and enough skills to make the wiring changes, etc.

Also, question.....which bearing is stuffed? The fan is bolted to a hub that is on the front of the water pump. It's not a shagged pump we're talking about here?