Jump to content
SAU Community

Recommended Posts

cant be intake restrictions, 4" intake with K&N pod, 3" custom IC piping....motor was running standard turbo before and was pretty stock..

The car feels good, it has brand new 255 federals on the back and it breaks traction when it hits boost in second, used to do it in 3rd with the old tyres..

Heaps weird...

What ecu? No changes with fueling and timing makes you wonder if the changes are being written to the ecu.

Nistune was playing up like this on the Stagea last year with this sort of issue.

power fc... the changes were definitely writing because the wideband was registering the changes and the timing eventually caused the knock levels to increase slightly as well...

Hypergear turbos love restrictions :laugh:

I feel your pain though. Car has been sitting in the shed for a couple of months now, thinking about what it's done :glare:

Hypergear turbos love restrictions :laugh:

I feel your pain though. Car has been sitting in the shed for a couple of months now, thinking about what it's done :glare:

Has it learnt its lesson yet?

Apparently not, it hasn't fixed itself yet. Now it's throwing a tantrum with the drivers seat, so it's in the naughty corner until I get back from Europe.

we both had no idea.... the car wasnt responding to anything... threw more timing= same power, richer=same power, leaner=same power wtf?

That means turbo's pushing some thing's limit which power band does not responds to the tune. I think its in the exhaust or some where, try drop it and see if any thing changes. Was it a plumb back external gate?

Normally cooler restrictions would drop heaps of boost, and the cooler would be burning hot on the cool side. So its not the case.

Also if you are in Sydney might be worth while visiting Toshi for a quick check up.

Why is the engine speed increasing then going back to zero? But speed increases gradually

I could be way off here but that torque looks quite high compared to power so maybe its getting wrong speed signal?

Rpm increases,decreases,increases then falls off

Edited by t_revz

yeah the dyno guy said that for some reason some nissans do that weird shit with the rpm... he said it wouldnt affect anything but.

The power graph really supprised me because it feels nothing like that...it actually has nothing for ages then all of a sudden kicks in massively and frys tyres but that graph makes it look very linear.... very strange

Just got off trents dyno

265rwkw with coil packs missing all over the place

19.7 psi down to 15.7 psi drop

Trent thinks it will hit close to 300rwkw once we sort out coilpacks and boost drop

Internal gate, note sure about the extended arm? Im guessing so.

Retune booked it for next Thursday.

Have purchased yellow jackets and will put in new spark plugs for the tune.

Trent made a suggestion that the boost drop maybe due to the stock BOV on the GTT not up to task? But were not 100% yet until I do the coilpacks and go back in for a retune.

Anyone know what the power limit on the stock BOV is before you need to be concerned?

He said to get a GTR one if it is the case.

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

    • For sure the later RB26 variants had a different setup (6 cam voltage sender?), but the RB25DE/DET share the same ECU pinout/PCB footprint, and at the ECU plug it ends up being 'throttle sensor in' & 'throttle sensor out' (to A/T TCU) ...you stick a multimeter on these pins and you'll find them directly connected (0 ohms) ; I had an pair of Nissan ECUs on the bench long ago, and I noticed this throttle sensor in/out link, actually linked to an op-amp ...which was unpopulated on the NA board, but present on the T board and I went 'ah-ha!' in some moment of clarity... ...it wouldn't surprise me if they changed strategy here though (in the software and actual monitoring of this signal), because they did with other stuff (A/T signals).. and 0.45v as a trigger point makes sense, as that's what the external TCU units expect at idle ; kudos, thanks for that insight...I suppose it boils down to whether or not Consult can display real time data of that signal's voltage... ...in any event, it presents the same target...ie; rotate TPS unit to achieve 0.45v to suit both ECU&TCU, and where do you goto from there? Just disconnect TPSwitch connector and/or that plus TPSensor connector....or do you go for the throat and disconnect IACV solenoid and see if it still stalls? (probably throws a recoverable fault code and goes for default idle strategy?)...
    • I’m also conscious that e85 is slowly being phased out. Not all United’s have them anymore. Can’t take the risk of being low on petrol and assuming the servo will have it. 
    • MR HAMMER has said his piece. Painted up to avoid Rusty Rusty. Actually lines up well. (i.e it lines up the same as the unmolested GTR guard). Turns out the GTR Strut brace does foul on the bonnet vents ever so slightly. May need a little bendy bendy if intended to keep using with a strut brace. So spacing it out to clear the FAST102 is not an option. Annoyingly, the bonnet vents also foul on the heater lines running over the engine. Given this engine does not EVER require a heater, a delete loop is going to be used. Don't worry, the defogger uses the AC. The heater is basically "Do not use the aircon and turn the fan on". It will still be effective, I promise.... once I get the system regassed... Will have to revisit with unvented bonnet I suppose, and suitable strut brace. There's plans to do this and other things tonight and bleed brakes (there was a weep) and put the bumper back on, and take Good Friday morning - Because troubleshooting on the side of the road limping it home at midnight tonight is ... not very smart.
    • Thank you all for you assistance. I contacted Nistune regarding the support for the RB20DE along with my ECU Code (23710-10U00). They do have a map for it and added the RB20DE as a purchasable option now as well. They also added Malta as a Billing and Delivery options as this was missing. I was honestly amazed at their quick response and action, it took less than 24 hours. I also looked again at direct fit options for injectors, just in case I were to replace them. DeatschWerks seem to use a Bosch EV14 base and makes ones that fit mine at 440cc lowest, but also have 550cc at the same price. I tried looking for other direct fit options and managed to find one (also Bosch EV14 based) which includes a plug and play adapter on ebay. Did a small test with a Noid Light on the troubled injectors and all seems good, so they are pulsing properly electrically. One weird part is that they are missing on the same two cylinders as before I got the injectors cleaned. Mechanic also found this weird as he did not label the injectors and it is unlikely to have the faulty injectors be installed in the same cylinders.  
×
×
  • Create New...