To Neo Or Not Too Neo?

[Lucy The Skyline]

So after a long time rolling around in my head over what engine should live its life between the strut towers of my R32 I've been pushed towards a RB25DET. Now just trying to decide between the Neo version or the 'normal' 25.

Only really looking towards 250rwkw of reliable power.

[Trozzle]

RB25DET "normal"

Will be cheaper, and just as easy to get the power.

[lachlanw]

get a neo . newer

everyone i knows says how much faster and "easier" my neo works to make my stagea faster than thier r33 25t's

[hypergear]

Neo engine's got bigger cams and solid head. Would definitely go for a Neo engine.

[bubba]

+1 for the Neo

[slow_poke]

Was in the same dilemma a couple of months ago. Ended up getting a neo because it's newer, more power and less emissions and plus I found one for cheap. Also may depend on how much money you're willing to spend. If you're on a strict budget maybe go the r33 rb25 as NEO's cost a bit more to buy and apparently a bit more to replace or buy parts for. Up to you in the end..

Let us know what you decide

[sinister_rb_s14]

+1 for the neo ive had both and the neo is a way better engine

[paulr33]

my vote is busted rb25det normal and you rebuild it before it goes into your car

you get a new engine already setup for the power you want and you can be sure its reliable

and it will be in better condition than a 2nd hand NEO and probably come out cheaper

ie busted RB25DET normal + rebuild < 2nd hand working RB25DET NEO

[On Edge]

+1 for the neo ive had both and the neo is a way better engine

details please ellaborate

[aleks]

The only bad things I've found with neo is that you can't really get a multimeter into the connector for wirring harness to ecu and that parts are harder to come across.

[Galois]

neo is newer so probably more reliable, but I'd probably do what paulr33 suggested

[Lucy The Skyline]

Safe every day use and power figures are a must. Dont want something the the shed more than on the road. Hell the current RB20DET is powering on like an RB should without a single problemin 2 years. And its had its fair share of flogging to boot.

But all the engine swap ideas came from Mercury Motorsport convincing me building a RB20 to the same kind of power levels I would like is even more of a money pit than normal.

Pretty keen on taking the advice of a shop with a 960+hp R34 GTR sitting out the front (NITTO) and a completely gutted R35 wearing a fresh Carbon front bar.

On a side note...who guts an R35, I was nearly in tears and I dont even like them that much.

[sinister_rb_s14]

details please ellaborate

well the neo makes more power from factory so u dnt need to modify it as much to make round the 250 mark (more mods = more money and more stress on the engine) the neo engine runs solid lifters, gtr rods, larger ports, bigger turbo, variable valve timing, u can also fit a live board to the ecu so remaping is a breeze u only have to plug the laptop in, not re chip it.

and neo engines arent really that much dearer than 33 rb25s

dnt get me wrong the r33 rb25s are a awesome engine id just prefer the neo

[sleek_s13]

+1 for neo, i've owned r33 S1 and r34 and the neo is heaps better. parts are a little bit more expensive but not by much. my car has FMIC, splitfire coilpacks, apexi pod, PFC, high-flowed turbo, exhaust and made 246kw