Motors.... whos knows motors?

[iamadirtdude]

I'm looking to do a rb25 swap in my 240 and was trying to figure out the differences between r33 and r34's.... also i was looking at 2 r33's one is an r33 and one is called a neo r33 whats the differences and are there any other types of motors like this?

[Joe]

the NEO was only R34

someone correct me if i get any of this incorrect, im not 100% up to snuff on my NEO engines

the NEO is different in these waysinjectorsturbovariable valve LIFT rather than variable valve TIMING pull type clutch

basically out of the box it makes about 35 more hp than a R33 RB25 but STOCK FOR STOCK will make more peak power when modded slightly.

[noodl35]

neo has solid lifters as well i believe...

[iamadirtdude]

so it sounds like neo is the way to go if possible? is 3300 pretty good for a complete rb25 clip with crossmember? this is a local shop i would be able to get help from and local pickup

[Chaos the Xile]

That sounds like a killer deal for a Front Clip for a NEO engine.

[iamadirtdude]

that was for an r33 i was going to see if he could do a neo for that even r33 is that pretty decent?

[Carl H]

unless its a neo VVL motor it does not have variable valve lift, else it would be a ve motor.the neo motors have c-vtc much like most newer nissan motors.

[iamadirtdude]

any other info?

[Yellow4g63]

my NEO VVL motor has Mad Vtak.... well it's my N/A SR20VE in my daily driver very fun car to drive.

[iamadirtdude]

i think im going to pick up a rb25 neo from venus this weekend

[Gold Digger]

I think the heads or the cams on the NEO motors were a little different. Something like the heads flowed better and the cams were a little more aggressive, which is one of the ways they were able to pull 280ps out of them.

Not 100% sure, though, so don't bank on it.

[S14-NEO]

NEO FOR THE WIN!!!!!!!!!!!!!!...im lovin mine now...one burrrrrrly mofo!!!

[GTR Shop]

There are 2 NEO engine used in the R34s.One has a std style intake manifold, the other is split.. the throttle body is over towards the turbo further and the inlet manifols splits after it and enters the plenum in 2 places.

No VVL on any RB.