GTSBoy

That's more or less what he meant. What it really means is that you do not have to go full crazy on the build. Don't need the best oil pump, expensive rods & pistons, big cams, etc. You can upgrade whatever you want instead of using stock level items, but you don't have to. Having said that - any time an RB is opened up, if anything is getting replaced, I think the opportunity should be taken to do all the sensible upgrades. Pistons, rods, pump, etc.

It was initially $2m

Yeah, the advent of canbus was supposed to cut down on wiring weight, then some bright marketing wonk says "oh, look at all these wonderful tech gadgets we can cram in here now that we have this wonderous technology" and some arsehole safety legislator says "oh, look at all the wonderful surveillance and tracking gadgets we can cram in here now that we have this wonderous technology" and some dipshit young engineer who has grown up thinking that an extra 500000 lines of code is not a problem because storage is cheap these days says "oh look at all this wonderful shit I can do to one up those dipshit arsholes over at VW" and the Karens of the world all go "oh look at all these fancy things I can do on my screen (so long as I am not driving on a bumpy road wherein touch screens immediately become the single most stupid shit idea ever shoveled into a car) and my 19 zone airconditioning keeps my sweaty fat folds a bit less damp and the windows close themselves because I'm too fat and lazy to wind them up for myself and these reversing sensors would have been great if I'd paid attention to them instead of smashing them on the bollard while I was reversing and staring fixedly forward that day I went to pick up little Charlize from ballet" and the sweaty mongoloids who say "oh this wonderful collision avoidance technology with these 45 excellent radar antennae scattered across the front of my car mean I can tailgate like a methed up tradie at full speed with no fear because the car and the 35 airbags will protect me if it all goes wrong" ...... </shallistopranting?>

If there is no ridge at the inner edge of the battery tray (ie the battery tray is flat until it rolls off the edge into the open space of the bay), then no, it won't matter if it overhangs. If the battery would be propped up by any ridge, then that wouldn't be ideal. The bottom of the battery case would not be sharing the load. It would be concentrated on one end edge and a line across the bottom where it contacts the ridge. And possibly it wouldn't fit under the locking clamp either. I only upsized my battery to the max because: I sometime have to leave my car undriven for weeks at a time while I am away for work. On the previous battery (replaced a couple of months ago) I had to leave it undriven for months at a time!! I sometimes abuse the battery by running the stereo up loud for many hours while I wash and polish it. This is how I realised that the previous battery was on its last legs, because it got to the point where it was too weak to start after a couple of such. It was 7 years old though, so, fair play. Supercheap had a good special so the X was only ~$250 instead of ~$320, which seemed sufficiently less painful. I had already been using NS70 for the previous 2 batteries for most of the same reasons as above. The X is just the final boss level. I was contemplating going LiFePO4. But it's like $900 to do that properly, and while you save >10 kg of weight, you can likely only expect a couple of years longer life. So meh. Maybe when the price comes down further. Although, in ~7 years when I have to replace this one, I might not be allowed to drive such an anti-social vehicle anyway.

My R32 is about 1300kg. There's your 500kg right there. I've stated before that I hate all modern cars. The fact that something the size of a Corolla is typically 1.5 ton these days is sickening. Should be 900kg like in the old days. What the f**k are modern materials for?

Well, just go buy some handbrake cables. S14, S13, A31 (? Maybe not - I suspect they have R chassis brakes), whatever you can get your hands on. And throw them at the car and see what sticks. Worst case, it is not impossible to get brake cables made. They just need the appropriate termination swaged on.

That's f**ked up. I'd guess it's more likely that you have an entire S13 subframe in there. Does it still have HICAS mounting points? Seeing as it is quite possible that yours is the only such converted car in the world, you'll probably struggle to find someone who can tell you from direct experience. 'Twere I you, I'd be looking for 4 stud Skyline rear brakes and convert back. At a minimum. Preferably go find all the stuff you need to put it back to 5 stud (assuming you're happy to change wheels) and upgrade to some decent brakes. You don't even need much stock stuff. Don't need calipers or rotors, as you can go fully aftermarket. Just needs hubs and the other bits and bobs that are different to what you have now.

The engine has nothing to do with it. The physical space behind the headlight is the limiting factor. And the height. The height of the NS70 is the same as stock. So the clamp bar across the top goes on nice. The battery tray is big enough for it to sit on. The X is for extra capacity - it has even more lead in it than the non-X NS70. Heavy f**ker. But it's not a track car, so I will suffer a couple of extra kg. In the case of the R34, maybe the physical space there is not as deep (forward-backward, not up down). Hence why they say the 60 is the biggest. But I would never trust a catalogue to tell me what will fit. I have the car. I have the existing battery. I have the tape measure. I have the dimensions of all the available batteries. I find the biggest box that will go in. (With the right terminals in the right places, of course).

While that's true, that is the only thing that those cars can do. Whereas a car like ours can also weigh 500kg less, and take a corner properly without risk of punching a hole in the concrete barrier when it lets go. Oh, and sound good. Oh, and not just be a mobile iPad.

@Dose Pipe Sutututu I would argue that >300rwkW inevitably comes only with a raised boost threshold that makes it more likely to get beaten by the family SUV with a 95 speed auto transmission and TD torque. Ditto the traction problems when it finally does come on boost. I used to love my stock turbo. A little flex of the ankle and it made a sweet little whistle and you had torque immediately. It wasn't fast fast, but it was more likely to win the "squirt to make the gap" type races that actually matter for a street car. I think >300 rwkW requires more capacity than an RB25 can offer (again, for street driving). I have enough experience with driving 2JZs in that space to know that they are much easier to pedal around in than a 25. I keep thinking Greg did the right thing putting a V8 is his car. I can't see myself not having a turbo - but I'd really like a big engine torque curve.

That's the one I have in my R32. There isn't a bigger battery that will fit an R32.

https://www.supercheapauto.com.au/p/century-century-ultra-hi-performance-4wd-battery-ns70x-mf/602477.html MF for Muthaf*kka

Hmm. Pretty sure the real GTR skirts don't work on my car (GTSt). That's sad because those are lovely**. Would love to think that the GTR pods would fit without gaps. Wouldn't love to take the risk. **That whole car looks like a lovely example.

Done

Yeah, um. I know this is all kinda my fault. But I'm swimming in a lake of liquid poo at the moment and haven't even gone on to do what I said I intended to do wrt SydneyKid posts, let alone anyone else's, let alone think too hard about the tagging aspect of this. The list of roadblock projects at home is actually worse than the list here at work. I'll try to get some mind space to look at it at some point.