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Neo is the smarter choice. Yes, it has RB26 parts....has RB26 conrods and an N1 oil pump. That's about the total list of actual RB26 parts. Unlike the normal RB25 it has solid lifters, same as RB26 without actually being the same parts. In generanl the Neo is a much better motor. Makes more power and torque out of the box, more modern head design, better turbo (if you plan on staying with it) and a better ECU (it is Nistune-able).

Nothing else that is different from non-Neo engines really matters.

Nice. I'll probably pick up the Neo. Right now I'm checking what I need to buy and getting a solid tally as to how much I'll spend. I'm gonna be using it for daily. So I want something reliable till I can afford to get a daily

It will cost a bomb to do it properly. I know, because I've done it into an R32.

Assuming you want to use all the newer ancillaries (and you should, no point in using vintage R32/A31 era stuff that's already had a full life)...power steering hoses need to be cut and shut. Same with air con.

Heater hoses need a fiddle. (Not expensive, but must be remembered.)

ECU/Engine loom needs quite a bit of alteration if you want to put the Neo loom into the older car, which is a much better idea than trying to use the old engine's loom and switching plugs or actual sensors etc on the engine.

You'll possibly need non-original radiator hoses to line the engine outlet up with the rad.

You'll need a good fuel pump. Budget for all the things that you should replace while you have easy access to the motor. That's timing belt, water pump, under plenum coolant hoses and any vac/boost hoses that are getting crispy. New engine mount rubbers are nice. Cam cover gaskets, front and rear main seals. The list continues for a bit.

Then there's the gearbox situation. You should use an RB25 turbo box. That will mean needing 1.5 tailshafts to build a custom job out of. Will also require access to a box of different Nissan gearox crossmembers so you can find the one that suits that box in that car. You will also need the Navara speedo mod to make the old speedo work with the new box.

Use an R33 box if you can as the clutch is easier to work with than the one on R34 boxes.

Sorry for any extra line spaces. This forum seems to be extensively broken since it cam back and formatted is always shot.

Edited by GTSBoy

I understand. I know I'll have tons of work to do but would the series 2 be easier to adapt into the car?

Here's my list of mods.

Aftermarket intake

Upgraded clutch

R33 gauge cluster. I'll also install some other gauges

Bov

5 hole conversion

2 way

Maybe a short shifter and some better seats

Fuel pump and a regulator

Same amount of work to put an R33 engine in as R34 when it comes to all the custom pipework and so on. Just go with the better engine.

R33 cluster will make the speedo easier to get working, but you'll have to wire it up properly. R34 cluster looks better and would suit even better again. Dunno if it will fit better.

DO NOT FIT A BOV!!!!!!! The standard R34 BOV will do the job.

The rest of it is to your own personal taste.

The problem is a skyline in my country is closer to 200k. Saw a r34 for 250k recently

Might get a S13 for 100k if im lucky.

Cifero are around 40k stockish

What happened in my country is that they don't allow vehicles to be registered after 5 years old.

So there's just a few skylines and sylivas. All of which hold a nice coin.

I'll maybe have 65-70k invested into the cifero from start to finish

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