Rb25det turbo vs Neo turbo

[lilskyline240]

By replacing the stock rb25 turbo with a Neo one how much more HP at the same boost level would be seen? Does anyone know?

[lilskyline240]

anyone?

[Joe]

about the same.

[Darius]

I thought I read somewhere that the NEO turbo has a steel compressor wheel compared to the nylon wheel of the S1/S2 turbo. Is that accurate?? As far as efficiency and performance go, they're about the same.

[Joe]

im not sure, my buddy blew his apart on his neo.

[lilskyline240]

cuz i know the neo turbo has a bigger exhaust housing which should allow for more power at around 12psi than a standard rb25 turbo shouldnt it?

[Joe]

your splitting hairs.

all stock turbos are small.

[lilskyline240]

my friend was just hoping that at maybe 12-13psi he would be at 300whp instead of having to run 15psi to make it to the 300whp mark

[TimTurboZ]

Waking this thread from the dead




found this...

http://www.skylinesaustralia.com/forums ... side-blue/

Series II - so has the updated interior,
- Sports pedals
- Updated Dash, gauges, lights and seat upholstery
- Factory Fitted Garrett Steel Wheel Turbo (see reference pic) - (Series I R34's have Nylon Wheels)

I see no reference pics but I'm sure he knows whats up since he did work on it.

Guess there are some with steel wheels...pretty sure my NEO doesnt have one

[DustinZ]

Neo Turbo wouldnt net you any more power at all. It can only reliably be boosted to 10psi before you grenade it. The turbo has a polymer compressor wheel and a ceramic turbine. The polymer compressor wheel is actually more fragile than the turbine. They spool super fast but dont boost them too much!

DustinZ

[klh6686]

I ran a neo turbo on a rb20 for ~2 years at 15psi and it has since been put back on the neo that it came off and has been running similar levels for the past few years. it really woke the rb20 up.

[Cjmartz2k]

Neo Turbo wouldnt net you any more power at all. It can only reliably be boosted to 10psi before you grenade it. The turbo has a polymer compressor wheel and a ceramic turbine. The polymer compressor wheel is actually more fragile than the turbine. They spool super fast but dont boost them too much!

DustinZ

This is true. Man, those guys on skylinesaustralia spread so much s*** all over the internet it's not even funny. Half the stuff they swear is "fact" is just regurgitated from what they saw somebody else said.

The older compressor wheels were metal. The newer (neo) ones were a polymer (plastic) and the neo compressor wheels are more delicate than the older ones, but they spool a little faster since they are lighter. All of this is a mute point since they all have the ceramic blades glued to the shaft for the exhaust side, and that is ALWAYS what comes apart. They are all weak d!ck little turbos also, so as it was said earlier, who cares.

[Cjmartz2k]

And to be exceedingly clear, there is no top end power difference with any of the RB25 turbo's. There is a slight difference in spool and thus mid range power is a *little* different.

[ncturbospecv]

while we're on the topic of stock turbos whats the scoop on the turbo listed from this site? its listed as an oem r34 garrett turbo as opposed to the other nissan branded rb25 turbos. would this one happen to be steel wheeled or is it also ceramic wheeled?

http://www.nissanparts.cc/catalog/?section=1060

[TimTurboZ]

^^^ I've seen that before probably the same site. yeah its metal, but u could get a used turbo thats bigger for the cost.

[Cjmartz2k]

while we're on the topic of stock turbos whats the scoop on the turbo listed from this site? its listed as an oem r34 garrett turbo as opposed to the other nissan branded rb25 turbos. would this one happen to be steel wheeled or is it also ceramic wheeled?

http://www.nissanparts.cc/catalog/?section=1060

This turbo came stock on the R34 RB25DET's. If you own an earlier model RB Engine then this should be a direct bolt on upgrade for you. Some call this a "series 3" turbo. Whereas the previous models were Nissan units - this unit is a Garrett Turbo that utilizes a T3 Flange.

All RB25 turbo's are T3 flanged Of course it's a "direct bold on upgrade." It's the same damn thing. I like how they don't explain how it's an upgrade. BTW, who has ever heard of a series 3 turbo?

I have taken several turbo's of of R34 motors, and they have all had plastic compressor wheels, and ceramic exhaust wheels.

[l0nestar]

Just started reading thread.. Hmm..
http://forums.gtrcanada.com/gts-tech/37 ... ces-2.html

But for $700 I could have a killer rebuilt Holset and possibly a set of injectors.. although.. the 'bolt-in' factor is rather enticing.

[Cjmartz2k]

I just read that thread. It seems it starts out with a bunch of people repeating what they heard on the net as fact (saying they had metal wheels), then several people who have actually owned them or seen them saying they have plastic wheels. There is one guy that says his buddy has one with a metal wheel, but that's one person, and it's his "buddy."

They are plastic.

[Ramius83]

There is one guy that says his buddy has one with a metal wheel, but that's one person, and it's his "buddy."

They are plastic.

And who knows the history about the "Buddy's" turbo. It could have come apart in the past, been rebuilt with a steel wheel, and then sold on the net, put back on that engine, etc etc etc......I love people though. I am a people lover.

[DustinZ]

PLASTIC JUNK!!!! All of them are wothless except for the bigger hotside. Buy one and use the hotside for a hybrid if you so want to go that far. Those turbos fall apart at low boost levels. Deffinately fun at 15psi for the 5 minutes or less it holds together.

DustinZ