I'm trying to justify the price difference

[mmm240]

I saw on jdm-online that the R34 RB25det produces 280hp and the R33 RB25 produces 250hp. Is this true? And how so?

[StricNyne]

IBTL W00T !!?!?!?!!?

Its differant IIRC the exh wheel on r34 is dif, head design is diff, VVTL a bunch of stuff is differant tween r33 and r34 its kinda like comparing a e36 m3 with a e46 m3

[mmm240]

Cool, thanks. I'm just curious because the only numbers that I have seen are from this website. I'm making sure that they aren't just saying that it's better for sales sake.Sounds like a good idea to go with the NEO!

[Cameron]

neos are ugly lol jK

[mmm240]

e36 m3 with a e46 m3

ahhh, stop it! I wanna get rid of the BMW and work on the nissan.

[mmm240]

neos are ugly lol jK

So are you going with R33 or R34?and why?

[Cameron]

i was jk i got a R33 1995 RB25

[bumblebtuna]

neo's are overated man.if i could do it over again i'd get a s2 rb25 and buiild the **** out of it

[StricNyne]

neos have tight ecu restraints cuz of all emissions crap BUT the head is BADASS, so are rods, its basically a less aggressive rb26 imo

[Cameron]

id take RB25 S1 or S2 after hearing that about the ecu..

[StricNyne]

standalone all the way !!! just get a neo and a EMS or throw in a haltech like e11

[mmm240]

neos have tight ecu restraints cuz of all emissions crap

Is that because it's an OBD2 motor? Sounds like a stand alone could solve all these problems

[mmm240]

I posted a bit late, gotcha!

[bumblebtuna]

power fc ftw!

anyone know where to find cfm charts for the neo and 26 heads to compare. i'm curious as to the difference.

but yeah, you get 26 rods, they're NOT solid lifters btw..which sucks.and a cool valve cover cover, lol

[StricNyne]

i am like 99.9 neo is solid lifters mang thats why u get insane cam choices !!!, also i did see a flow test in sau u believe, but neo head has smaller cc in combustion chamber so if u bolt it on to yer car yer compression will raise

[240z4u]

Well, what is the price difference? I am honestly not sure.

Are you going to keep it stock or modify it? What are your HP goals.

Gut feeling says NEO may be a good idea if it flows better, and is not going to cost an arm and a leg more.

Evan

[Darius]

Get the NEO. Solid lifters and thicker rods makes it power hungry from the start.

WTF is all this complaining about the ECU? I'm pretty sure you can rom tune it (CarlH chime in here) and if not, there is a huge aftermarket following for a standalone system.

[bumblebtuna]

hell don't get me wrong man, i'd like to believe you about them being solid, but by buddy's no noob, and from building ka's to hondas (have solid lifters), sr's etc... he's seen a few motors.

so by looking at my head he saw something that convinced him they were a hydraulic setup (similar to his 1jz). i've heard everyone and their brother tell me they are solid though. i'm hoping my friend is wrong this time, he rarely is.

i could post pics but my camera's down. anyone who can clarify the difference i'd appreciate it.

to OP sorry to threadjack, get the Neo if you find a deal, they're newer usually and have potential.

[Darius]

Well I don't know what it will take to convince you. People have been wrong about lifter type before (recently actually). The president of skylinesaustralia said they are solid lifters and so does everyone else on the planet. The hydraulic lifters look a lot like the solid lifters, they just don't have shims. Go give your friend hell that he was wrong. hahaha

[mmm240]

Well, what is the price difference? I am honestly not sure.

Are you going to keep it stock or modify it? What are your HP goals.

Gut feeling says NEO may be a good idea if it flows better, and is not going to cost an arm and a leg more.

Evan

Price difference is only about 500 bucks. I will keep it stock for a little while. Slowly mod it up as I see fit. I was thinking about going CA, but for the 100 extra hp I think the RB25 is worth it. I've been doing research on the CA and never thought about the RB until yesterday. Off searching I go.Thanks all!

[240z4u]

IF the head is truely a better design and will flow signifigantly better numbers then the S1 or S2 motor I say go NEO.

Evan

[StricNyne]

NEO has less miles also...

[Coolwhip]

for $500 more? I would jump on the NEO.

And if your lucky you'll have a collar fix on it.

And pretty much an ECU, Turbo, Injectors, and Cams will put you within any resonable power limit you want.

[240z4u]

****, I paid almost as much as the price difference getting my collar fixed on the crank.

Def. worth the gamble for that alone.

[bumblebtuna]

ha!~ i pwned my friend today

like i thought, (and everyone else)THE NEO's HAVE SOLID LIFTERS.my machine shop confirmed

booya