Jump to content
SAU Community

Recommended Posts

  • 1 month later...
  • Replies 40
  • Created
  • Last Reply

Top Posters In This Topic

has anyone done a gredy plenum on to rb25det neo

can you give me idears of what parts required

ie do the metal water lines under the intake fit

aac valve issues

fuel rail and injector issues

thanks in advance

I suggest you save all the money from wanky plenums, ra ra and go with a pov spec frankenstein RB25/30. There are many guys in the dyno thread easily smashing down 300 kWs with stock plenums.

Being technically minded, you should be able to slap the motor together with ease. RB30 motor/block from wreckers shouldn't be more than $200 ~ $400 with no ancillaries.

  • 3 months later...

post-16614-0-93957400-1292233854_thumb.jpgdo we realy need to have twin gates with twin scroll?

I wouldn't bother with a dual gate twin-scroll setup on a straight 6 as its not a true twin-scroll anyway . This is just my opinion, each to their own but i don't think its worth the cost of the second gate compared to a 4cyl setup where both paths are kept completely seperate.

I wouldn't bother with a dual gate twin-scroll setup on a straight 6 as its not a true twin-scroll anyway . This is just my opinion, each to their own but i don't think its worth the cost of the second gate compared to a 4cyl setup where both paths are kept completely seperate.

LOL

Firing order is 1-5-3-6-2-4.....makes twin scroll easy on an RB

You asked for suggestions and the cost effective solution is an 82 rear for your current turbo - 44mm wastegate (run it off the turbo) modify exhaust to suit and retune.

If you really want a sixboost and greddy (copy) plenum don't ask if its a good idea (you'll be told they are not necessary) just go and do what you want to any way with your money. If you have to have a FF plenum its a simple matter to change your brake master cylinder for a shorter one ( a drop in the bucket cf what you want to spend).

I wouldn't bother with a dual gate twin-scroll setup on a straight 6 as its not a true twin-scroll anyway . This is just my opinion, each to their own but i don't think its worth the cost of the second gate compared to a 4cyl setup where both paths are kept completely seperate.

Whaaat?

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...