GTSBoy

As well as being risky WRT tipping off anyway. Yeah, I wouldn't expect it to move. Just measure from the rear one to the front one on the good side, then measure that same length on the wrecked side. You will find the notches in the pinchweld, and the jacking pad. Just spray a spot of marker paint or something there.

Absolutely. Look very closely at the photo (of yours) that I took my second snip of. See how the sill is thicker material right behind the pinchweld, where the two notches are? That is the factory reinforced area for lifting. That pad is supposed to carry the weight. The factory jack (go look at it, and how it interfaces with the car at the pinchweld) shows you exactly how the load is carried from the car to the jack to the ground.

No. No it can't. It will absolutely end badly. There's no need for it, so there's no need to create the risk. Mitigating a risk that didn't need to be there in the first place is even dumber than mitigating a risk that could be engineered out in the first place. And the risk has already been engineered out.

You can also make your own. It doesn't need to be rubber. It just needs to mate securely enough to whatever the jack/arm point is, and have a slot in the top. If that means welding a few chunks of steel together, or slotting something in a mill, then, that's what it means.

https://www.aliexpress.com/w/wholesale-rubber-jack-pad.html?spm=a2g0o.home.search.0 Pick any of these that look like they will work.

Japanese English. Well, no, because that would be very very dangerous. It is already a bit sketchy supporting the front of the car as far back as the stock front jacking points. As Duncan said, the front of the car is very heavy. You absolutely do not want to encourage anyone to be lifting from any point closer to the centre of the car. It will tip and kill someone.

Reasonable bet is that he burnt something because the NA and turbo ECUs are not pin for pin the same.

Those chassis rails can be straightened out too. You need someone who knows how to use the appropriate prying tools to reach up inside through the available holes and press the bottom surface back out from the inside. Mine were a bit damaged, and we got them back to looking factory so it would survive an inspection at the pits without risking a defect (yes, damaged chassis rails are defectable here in Oz).

And WRT the photos....f**k me dead, there are some butchers out there. This is a prime example of wwhat the factory jacking point looks like. The notches tell you exactly where to put the jack, and the reinforcement is on the other side of that notched pichweld, ready to carry all the load it needs to. Like this Same at the front, except they've been smashed.

Don't "upload" the pictures. Just copy the picture direct from somewhere (I usually am pasting screenshots or something else that I have on the clipboard as an image, not as a file" and just paste it direct into the post editor. Just like you were pasting it into a Word doc or something. You can't damage something if you lift it where you are supposed to. If you look carefully at the correct jacking points, you will see that they are reinforced right there. And nowhere else. That is where the "foot" of the factory jack is supposed to sit. That's why you need rubber pads with slots. 10mm might not be deep enough. Note also that the slots are not required if the pinchweld has already been slammed flat. You could just lift it at the correct spot with a flat pad, because the damage is already done. No point in making worse though, if it is recoverable. IF. Yes, that's called a chassis rail. You can lift carefully on these, if you spread the load. A decent block of wood is good. But keep in mind what I said before. Any time you start doing this sort of thing, you are off the normal path and into "be bloody careful", because it is obviously not stable. Dumb. The refinforcement is already there. See above.

Got spark? Got injector pulse?

Note when Duncan says that, he means "when you're not using the correct lifting points on the sills, because you want to work on the sills. A 2 post hoist is not appropriate for everything anyway, and working on the sills is a good example of that, because the arms go under ths sills anyway. You're better off finding another way to support the car off the ground. Beyond that everything else D said is correct. Only the dedicated jacking points are the correct place to lift. Anywhere else is incorrect, extra caution and awareness must be used, etc etc.

Well, hydraulic lifters will get noisy if they are dirty/fouled in some way, and exactly how that manifests will depend on exactly what schmutz is where. There is a procedure on here somewhere for dismantling and soaking/cleaning them. Replacing them with new is about 50% of the work and about 5% of the money!

This seems problematic and unlikely at the same time. Vanilla RB2Xs have hydraulic lifters. They do have "zero" clearance, but only when running with oil pressure inside them. When not running, you should be able to compress them and obtain heaps of clearance. RB26s and Neos have solid lifters. They should have ~0.3mm and ~0.5mm on the inlet and exhaust respectively. If they have zero clearance then bad things are happening. With nothing else being wrong, it would mean that the valves would be held slightly (ever so slightly) open when they are supposed to be closed and it should have all sorts of problems when running, caused by leakage in/out through the valves. Or, zero clearance can indicate severe valve seat recession. None of it is good. Have you used a piece of hose as a stethoscope to try to localise the noise?

What HVAC actuator is under the steering wheel? Do you mean on the RHS of the centre console, immediately to the left of your shin? If so, then yes, it is probably that one, because that is the mode door actuator, and from what I know, it's still a pain in the arse to replace. I don't know about whole dash out, but you certainly have to rip into the centre console section. I don't know if it's covered in the workshop manual, as I haven't spent much time looking at those parts of it. (and by "the workshop manual, I mean the R32 GTR one, which is the most comprehensive one we have, and it should be similar enough between that and later cars to serve as a guide).

VCT, yes.

Well, I was going to say, "Is the wastegate set up so that it is not leaking?" That's actually a different thing to what you're asking about. In theory, if you have allowed the two halves of the manifold to commmunicate (more than the stock manifold does - which is at least a little bit) then the negative effect should be apparent in delayed spool, not in outrigth power. OK, maybe just maybe, a badly set up twin scroll wastegate "crosstalk" might kill the top end, although it's hard to see how. What is happening with the original wastegate in the turbo? is it sealed off properly. If it's left flapping in the breeze, it will f**k everything up. If it is still there, and can be returned to service, I'd be capping off the external (presuming the two halves can and will be isolated from each other after doing so) and have a go with just the stock wastegate. I have an internal wastegate in my highflowed rear housing. The bigger opening and flapper should be fine to >250 rwkW. So there's not exactly a pressing reason to have the external. Done right, an external will give better results. Done wrong, it might just be possible to have worse results. Report back!

It might be fine. I was just saying that I wouldn't trust it without testing it.

That's just a gauge, with a certain amount of electronic damping, and no-one cares if it is timely-accurate. I'd hesitate to use it for an ECU MAP input without knowing that it was a nice signal. Responsive but smooth. Not laggy. Not lumpy.

Getting a decent signal from all 6 throats is a challenge. I don't know for sure, but I suspect that the stock balance tube is not ideal for it. I have done it on an ALFA 4 cylinder (about 35 years ago, so don't ask for too many details). We drilled 4x holes in the manifold runners, put in some fittings and ran hoses to a decent sized (I think it was about 20mm diameter) pipe that ran the length of the inlet manifold. So, it was quite a decent volume. There is a "tuning" balance to be found between the volume of the common plenum on such a thing and the diameter of the pipes running from it to the runners. You need the volume to be large enough to damp out the sharp spikes in pressure signal you get as each runner gets sucked on by its cylinder, but not so large that it becomes too slow to respond to actual changes in MAP. And you need the hoses to be small enough to transmit the signal quickly, but not so small that they delay the signal. You might have to have more than one go at it, if there isn't any actual success based wisdom to be had here. Hopefully there is. Anyway, I would not do it on only a couple of cylinders. I would also not care about "permanently modifying a part". Just bloody drill holes and make stuff better. There is nothing sacred about any GTR unless it is a genuine museum piece that you shouldn't be modifying at all anyway.

No, you cannot perma-bend hose once it is already made.

If it doesn't have a bunch of funky bends, then yes, you can just use straight hose.

There are other crowds doing 25Neo conversion kits.

Not familiar with that car at all....but that code is for the traction control. Does it have a 2nd throttle in series with the first, like the R34 Neos do, to make the traction control happen?

Well, in that case it is either completely normal accel enrichment, or it is completely abnormal accel enrichment, caused by a problem that we will be unlikely to be able to guess at this distance, but which will turn out to be f**king weird.