Rb20 Neo

[Roy]

So i have come accross a cheap RB20 NEO from an R34. I understand its a whole 140hp of 2L goodness and was the most economical engine in the R34 range. But thats all i can find out on them? Does anyone else know much about them?

Looking at the timing belt cover there is a pronounsed bulge, so i am thinking it has variable inlet cam like the RB25s. I want to see if anyone knows anything of them before i buy it...but i am hoping it has a better head and possibly uses solid lifters and may accept RB25 Neo cams etc.

[Ruffels]

i know jerry from japan plus auto parts has one! first time i'd ever seen one... Pov pack much?

[Psymon]

I saw one of these on ebay the other day and was wondering if these had any potential or advantages over the old RB20.

[Roy]

Psymon, Ruffels...how much were they going for? Ruffels, got the contact details for Japan plus?

[HR31_RB20DET]

Might be worth contacting Brad from spool imports. I believe he had a rb20 neo head for sale a while back and from what I could tell I think they have solid lifters and also run an inlet butterfly setup similar to the redtop rb20's.

Spool Imports

Edited May 4, 2009 by HR31_RB20DET

[Psymon]

I think the one i saw on ebay was going for about $600... might still be on there, it was only a couple of days ago i looked. I'd find it for you Roy but ebay is blocked at work.

[SABBAi]

Here ya go Bris.

RB20 NEO on Ebay

Looks like it's missing it's CAS

[STATUS]

STD RB20

vs NEO

[tweety bird]

wow.

[GTSBoy]

The 20Neo is obviously a far better engine than the old 20. It has everything that is good about the 25Neo......but it is missing 500cc. Same as the old RB20s. Makes one wonder why one would bother buying one and doing the work to install it in something when there is a 2.5L version available.

[wolverine]

What the hell else would the "Chief Minister of RB20 propaganda" drive?

[StevenCJR31]

if you need to keep your cars engine capacity to 2 litres for rego reasons then this engine makes a lot of sense

[GTSBoy]

I can't think of a reason to keep any car's engine capacity to 2L where it would make more sense to use an RB20 than a 4 cylinder like an SR20. Any Skyline can be legally embiggened to 2.5L without pain. Anything smaller car that can't go above 2L capacity would not be a good thing with a heavy lump of cast iron 6 cylinder in the front.

[Trozzle]

I can't think of a reason to keep any car's engine capacity to 2L where it would make more sense to use an RB20 than a 4 cylinder like an SR20. Any Skyline can be legally embiggened to 2.5L without pain. Anything smaller car that can't go above 2L capacity would not be a good thing with a heavy lump of cast iron 6 cylinder in the front.

Yeah, agreed here...kinda makes more sense in any situation to go SR20 over RB20

[JustinP]

Yeah, agreed here...kinda makes more sense in any situation to go SR20 over RB20

It definitely makes more sense to use the SR20... as long as you dont mind driving around with ear muffs on to hide how crappy they sound

[Manuel Kasko]

Record a rb28 sound

Put on 100% volume and repeat song

Win

[raZ1911]

And it has VCT by the looks of it!

[R31 POWER]

Do it Roy.

[Manuel Kasko]

Do you guys read the dates?

He posted it in 2009 haha

Pretty sure it would be sold by now

Or at the very least the eBay listing expired

[discopotato03]

Someone somewhere must know the exact differences with late RB20's . Variable cam timing and a shim type valve train would be worth having .

I'd also be looking at chamber shape and size because they changed on the Neo 25 - possibly be cause of emissions and detonation reasons .

How do the CR and power output compare R32 to R34 RB20s ?

Is there an engine manual available that covers all the R34 era RBs ?

A .