Jump to content
SAU Community

Recommended Posts

We had issues with the config of the EVC to start with. For some reason it had started just delivering 7psi. By the end of the day it was fine and back up to 15psi, but it's pretty obvious that I'll need Scotty's upgraded wastegate spring.

Thats a pretty good result for 7psi. lol.

You did better than my first attempt, good to see the tune is working and the engine runs fine. How does it feel? That's much more important than the power figure...

It feels pretty good. Looking forward to putting the good tyres back on and giving it a spank.

Shifts are a lot firmer, but throttle response isn't as good. Need to check that part of the map :/

Booked the car back in to get a couple of things with the tune fixed. Firstly whatever is causing the fault light and second the shitty throttle response. First thing Tuesday we should be good!

Just finished installing a GT2 FMIC with one hand into my AR-X. Had surgery on my right hand last week, so it is in a cast with titanium pins holding it together! Was a bit of a mission installing the intercooler, but I couldn't wait. Sweet intercooler kit!

Wow, that's dedication!

Got a mate ordering some bushes for me :-)

So much cheaper than retail when you work in the industry

Eg, r31 rack bushes, $15 fish vs around $45-60 on the eBay

Can't wait to have a bit more camber and caster in the front of the Stagea

Booked the car back in to get a couple of things with the tune fixed. Firstly whatever is causing the fault light and second the shitty throttle response. First thing Tuesday we should be good!

i have fault codes (running rich and running lean) 0172 & 0173 i think pop up sometimes but apparently it doesnt mean sh*t its just anoying for us

i have fault codes (running rich and running lean) 0172 & 0173 i think pop up sometimes but apparently it doesnt mean sh*t its just anoying for us

I notice when the code clears itself it comes back on at idle, so we will pull out the code and see whats going on. Shouldn't be doing anything like that.

Just finished installing a GT2 FMIC with one hand into my AR-X. Had surgery on my right hand last week, so it is in a cast with titanium pins holding it together! Was a bit of a mission installing the intercooler, but I couldn't wait. Sweet intercooler kit!

hardest part is the pipe on the drivers side to the intake. Oh I swore at that pipe many a times. good work on your persistance

I notice when the code clears itself it comes back on at idle, so we will pull out the code and see whats going on. Shouldn't be doing anything like that.

yep every time i notice it it happens at idle, as a set of traffic lights

** my tuner reakons its not an issue...............

Edited by WAGON_BOY

Its not an issue because the aftermarket computer is interacting with the stock computer. Theo- I remember when we had yours on the dyno, and we had a good idle AFR, yet when I was reading the stock computer the O2 correction was doing silly things. The data that I was reading was not actually affecting the AFR. So I'd expect to see errors as the stock ECU is trying to use O2 correction, and sensing different things. 125%/75% combination most likely triggers errors.

There is also 3 different O2 feedbacks in the software to look at.... bit confusing.

Thats the way I see it - no doubt Scott will chime in and disagree :P

The stock computer thinks it still has control, and expects to see a result from its o2 cycling. When this doesn't come it throws a fault. The Fcon is trying to trick it but it isn't smart enough obviously. (or not set up correctly)

Either way, it makes no difference as the stock computer is doing nothing with regards to tuning anyway. As long as it stays happy enough to run the throttle and cams you are fine.

Sounds like hooking the wideband up should fix it. Pretty sure my harness is setup to feed that signal back to the stock ECU.

But if that's what it's doing we'll work it out tomorrow and I'll see if we can find a fix.

Is it presenting as left bank lean?

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

    • 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 👌
    • I'm interested,do you still have it?
×
×
  • Create New...