Jump to content
SAU Community

Recommended Posts

Sorry to be silly ! But are you reading the boost of the ome gauge ?

I put a blitz return flow fmic and a 3inch JJR bell mouth on with a boost controller. It would spike to 14psi then it would drop down to maybe 12 11 psi.

I ran that for a year and it was all sweet !

Many would advise not run more that 10 psi !

@gts boy i was planin to put on a ebc and boost it upto 10 psi(had a drive just now).since its almost there should i go ahead with that mod?will runin it 12 sometimes be too risky?

my mods are full 3 inch xforce varex with split dump and k&n drop in filter thts it.

I wouldn't buy an EBC to raise the boost 1/2 a psi!! Not unless you can get one super cheap second hand. The only benefit you will get from fitting ANY boost controller at this point will be to keep the wastegate closed as it is coming on bost, which will make it feel MUCH faster even if it doesn't actually have any more total power up top.

12 psi is not risky at all. If it spikes up there every now and then (or realistically, even every time it comes on boost) you're not going to damage anything. The turbo will be fine - it won't shit itself at 12 psi any more than it would at 10. Sure, it could shit itself, but they're like playing Russian roulette anyway. The ECUs on R34s are a lot less emo than on R33s. They still tend to get well rich and retarded, and if you try to run 12 psi boost all the way to the top end then it might start to feel a bit ragged and slow. I have recent posts (in the last week or so) where I describe setting up my boost controller on my Neo and what it felt like at various boost levels. My physical mods are similar to yours. Good exhaust, FMIC, standard R32 airbox but opened up at the inlet, Metal turbo intake. Meaning that your ECU's thresholds of emoness should be similar to mine.

You need to Nistune your ECU, get the turbo highflowed, get some injectors, a fuel pump and a Z32 and tune it up towards 250 rwkW to get any better results than where you are now. A tune on the standard ECU and fuel system (maybe upgrade the pump for safety) will nett up to 210-220rwkW on a Neo, which is pretty good, but you keep the risk of the turbo going poo.

Nistune prices? See the Nistune website perhaps. It really is that easy.

Also, I am tempted to send you to lmgtfy.com for my recent post. I will have to search for it. If I have to search for it, then you could just as easily seacrh for posts by GTSBoy with the term "boost controller" or similar. Like this http://www.skylinesaustralia.com/forums/topic/429587-720-denso-top-feed-from-rb26-fit-rb25-neo/?view=findpost&p=6952094

Nistune prices? See the Nistune website perhaps. It really is that easy.

Also, I am tempted to send you to lmgtfy.com for my recent post. I will have to search for it. If I have to search for it, then you could just as easily seacrh for posts by GTSBoy with the term "boost controller" or similar. Like this http://www.skylinesaustralia.com/forums/topic/429587-720-denso-top-feed-from-rb26-fit-rb25-neo/?view=findpost&p=6952094

lol!Next mod has to be shift kit for trans. They take a crazy amount of time to shift between gears. First mod for any auto should be shift kit.

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

    • Bit difficult to follow. Have a look below and see what the standard R32 layout was like. Note there was a restrictor in place immediately before "turbocharged pressure control solenoid" that, if removed, magically got you 1 bar boost.
    • I might be way off the mark here.. there must be a T junction under the manifold. That takes manifold pressure through a check valve prior to the T, one side splits out to this bleed off orifice, the other straight to the wastegate actuators. 
    • Carrying out some engine due diligence before my first drive in a 260RS that has been in storage for 10+ years, and found two lines that are susposed to be plumbed into the boost control solenoid. One of the lines (the wastegate boost supply line) to actuate the gates, had a bolt in one end blocking it. The other line (main boost signal line) from the very rear of the intake manifold (RB26DETT) and runs up to the boost controller had this pill in the end of it as seen in photos. Other than the obvious (T28 Ceramic turbos might well be cooked)  Can anyone shed any light on if there is any validity at all with this mod, bleeding a constant fixed rate of manifold boost pressure off through this 3mm hole?  Is it deliberate?  Was this a 90s Jap mod done to RB26's? Or has someone just fitted this without any idea of what happens to ceramic T28s if they are not gate controlled?    
    • This looks great! Awesome to have the 5 speed with an LSD in this. The Recaro's look like SR2's or SR3's. It's a shame they've been retrimmed as they would have looked sweet in their original colours. I think I'd want my agent to be a little more up front and informative too. I've never imported but I reckon it would make me a little nervous, so the more info the better.
×
×
  • Create New...