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Hey all, With a couple mods on my Stag, I'm thinking I could be doing better fuel economy/power if I did some fuel tuning. Originally I was thinking a Nistune, but looking into it, I think this is probably a little premature. Honestly, not going to upgrade much more mechanically for a while - current have a catback, K&N drop in air filter, BOV, EBC. it's gonna be a while before I look at FMIC/turbo/injectors/fuel pump. That lot would need a Nistune, in my opinion, but for now I'd like to run a good clean setup at around 10/12psi. Have done some searching and reading and it seems like some folks are using SAFC for fuel maps. But I'm wondering how people actually tune their maps? Doing it DIY on the road? On a dyno? Using a datalogger? Laptop connection? Really interested, as I can see units on ebay for under $250 but keen to know what the best course would be for tuning it. I've read about folks pulling up to -35% off the top end of the map but I'd be concerned to hit a knock at that level, without seeing an AFR data log. Cheers

I have R33 S2 GTST with Vipec ECU which i believe is the same as a Link G4. I have a Innovate LC2 wideband with gauge and need to know where the Brown wire goes. - i read it goes to AN Volt input (any free ones) but which one ??? There is ECU Expansion 2 - 5V "An Volt 2" but you need the XS Vipec Loom , is there any other wire that can be used? I also have a MAC/Vipec 3 port Boost solenoid that has 2 wires (one for 12V switched) and one for DPO / PWM Output... Where is to be wired to ? http://www.vi-pec.com/techdata/diagrams/boost-control-solenoid-diagrams Says take the wire to Aux X - where is the AUS X? which spare wire can be used as "X"... Thanks everyone...

I'd like to have a go at getting O2 closed loop feedback working with datalogit so I can get some stable fuel ratios off boost. I don't have a fuel temperature sensor so on long journeys, it seems like I am getting some small fluctuations when temperatures change. That, I think, is the only explanation I have for my fuelling going slightly lean (0.5 AFR), on a long journey (150+ miles). I've checked air temperature, voltages, fuel pressure and all the corrections available to me to no avail. I've also raised before that I get a lean condition when turning air conditioning on which is annoying again; grounding all seems fine and voltage corrections seem fine. I've been investigating and found that from most tuners, you'll get these problems if you're running everything in open loop because there's just so many things that need correcting, i.e. a small rise in fuel temp changes the amount delivered. I've got a regularly calibrated MTX-L wideband that I use for tuning which is plumbed into AN1-AN2 on datalogit. I've got O2 feedback turned off because I don't have any narrowband sensors on my car but I was thinking that I would be able to turn the MTX-L to provide output in lambda instead of AFR. If I do this, where do I sort the wiring? is it basically wiring the wideband into the loom that goes into PowerFC? Datalogit just shows 0.005 for O2-1 and O2-2 constantly. I would assume that once PFC sees the wideband putting out the voltages it expects for the O2 sensors, it shouldn't care whether it's a wideband or a narrowband and my AFR problems will go away. I can have the MTX-L display gadget just understand the voltages I tell it and to display the AFR accordingly so I shouldn't notice any visual changes.

Hey, I'm finding that after an hour or so of driving on a motorway at a steady 100km/h, the fuel ratios start leaning out from where I set them when at normal operating temperature after driving for 10miles (14.7), all the way up to 16+. This is the same behaviour that happens if I leave the car and get back in it again after it being switched on which leads me to believe it has something to do with the crappy air temperature sensor that is on the standard car. I am running twin map sensors but with the standard nissan temp sensor which I think I'm going to be changing. I'll write this up like I did with my AAC post. Is this behaviour happening because of heat soak or is it possible that there is something else happening? i.e. fuel temperature rising? I don't have a fuel temp sensor and it's not showing an option for specifying values in datalogit. I am thinking it is heat soak because I have a single turbo conversion with no turbo blanket.. yet, in combination with the crappy sensor. Any thoughts?

Hi guys, up for sale is my WBC 2 wideband controller. I installed it on my car but then changed from twin turbo to single so took it off and got the single O2 kit. The car has started with the kit on but it never left the shed so it should be in really good condition. It also comes with the dual display gauge so you can see what your AFRs are sitting on. The only thing you'll need are new weld on fittings for the O2 sensors to screw into the exhaust. You can get them on Ebay for about $10 each. I believe this kit is more designed for Platinum range of ECUs rather than Elite but do your own research to confirm. You can just use it as a standalone to monitor your AFRs. Price is $250 and includes delivery in Australia. Its on Facebook and they hungry on there so let me know ASAP if interested!

Hi Guys, I'm thinking about going in a different direction with my car and as such i'm looking into selling my Haltech setup. Everything is brand new still in the box and it includes pretty much everything Haltech sell. 1 x PS2000 IQ3 Street Kit which comes with ECU, Harness, IQ3 Display Dash, CAN Wideband and Sensor, Free Mini Can Hub. 1 x Haltech I/O Expander 12 Inc 2.5m Flying Lead Harness 1 x Flex Fuel Composition Sensor - Suit 3/8 hose (inc plug & pins) 1 x Coolant Temp Sensor - Small Thread 2 x 150 PSI "TI"Fuel and Oil Pressure Sensor 1 x 4 Bar GM Map Sensor 1 x Boost Control Solenoid RRP for everything is $5400 but im putting it up for $4500 ONO. I will not split unless everything is spoken for. Pickup is preferable but will post at buyers expense. Items located in Rouse Hill, NSW and best contact is 0403858714. Thanks, Brett