Jump to content
SAU Community

Recommended Posts

Hi guys, i just want your opinions on what you think a t04r would go like on an Neo Rb25det??

At the moment it has a stock bottom end which will later be forged down the track and it is mainly a street driven car, do you its too big?

Cheers, any comments will be greatly apprieciated.

Link to comment
https://www.sau.com.au/forums/topic/227773-t04r-turbo-on-neo-rb25det/
Share on other sites

Is it the HKS version?

To my understanding the T04R is a trimmed version of the T51R.If you want to go big the better option will be the T04Z.

But on a fairly standard 25 IMO its too big.

You will benefit better from a GT30 or GT35 for a street driven car.

Can get back on the details if you like but from memory a T04R is simply a T04 "P" trim turbine driving the BCI-8D compressor that the T04Z turbo uses . T51's use the same ball or bush bearing center sections as the T04R/T04Z's but the turbine is larger again - vaguely similar dimensions as a GT42 turbine but older "T" series wheel tech .

That's a lot of turbo for a hydraulic valve trained RB25 especially if it has std pistons and single throttle inlet manifold .

IMO if you had to have one the ball bearing T04Z would be the durable solution (turbo wise) but I think its too much for an RB25 .

Arguably a GT3076R or GT3582R is a bit more in proportion with what can be reasonably expected from the RB25 top end and 2.5 liters . Maybe if you were prepared to fit a 26 head and inlet ...

Cheers A .

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Can u check this way it works for power supply?
    • These coils draw 10amps that what i read online
    • I appreciate the detailed explanation, think I understand now. I spent the better part of last night reading what I could about shuffle and potential solutions. I had replaced the OEM twin turbo pipe with an alternate Y pipe that is separated further away from the turbo. The current one is from HKS and I had a previous pipe that was separated even further away, both have shuffle. I had heard that a divider can be welded in to the OEM pipe to remove turbulence, and figure that aftermarket pipes that are more separated would achieve the same thing. From what I read, most people with -10 turbos get shuffle due to their size, though it's a bit less common with -5s on a standard RB26. I think Nismoid mentioned somewhere it's because OEM recirculation piping is common in Australia with -5 cars. It seems that the recommendation tends to vary between a few options, which I've ordered in what I think is most feasible for me:  1. Retune the MAP or boost controller to try to eliminate shuffle 2. Install OEM recirculation piping 3. Something called a 'balance pipe' welded onto the exhaust manifolds. I don't know if kits for this are available, seems like pure fabrication work 4. simply go single turbo My current layout is as follows: Garrett 2860 -5s HKS Racing Suction intake MAF delete pipes HKS racing chamber intake piping hard intercooler piping,  ARC intercooler HKS SSQV BOV and pipe Haltech 2500 elite ECU and boost solenoid/controller HPI dump pipes OEM exhaust manifolds HKS VCAM step 1 and supporting head modifications Built 2.6 bottom end All OEM recirculation piping was removed, relevant areas sealed off I'll keep an eye out for any alternative solutions but can get started with this.  Only other question is, does shuffle harm the turbo (or anything else)? It seems like some people say your turbo shafts will explode because of the opposing forces after a while and others say they just live with it and adjust their pedal foot accordingly. 
    • That worked out PERFECTLY! Thank you big time to JJ. He was able to swap me his stock diff. He drove all the way to me as well. Killer! Removal & install was pretty straightforward. The diff itself is HEAVY. So that’s a 2 man job.  Man does the car drive nice now! Couldn’t have worked out any better 👌
×
×
  • Create New...