AusFreak

Hello, I have this issue and im suspecting something is up with the diff/LSD. Whenever the car wants to lose traction it starts hesitating be either either a left, right turn, over a bump, from stationery up a hill turn where the wheel starts losing traction it starts bogging down but at speed it hesitates like ABS lol I have a FPR and it shows fine pressure from the fuel pump and it does it also when the tank is full so i dont think its to do with fuel. car is R33 GTST

Build thread aaaaay, ive already nearly finished doing my second upgrade on the engine. Currently: Its been a while now but here is the list of things ive done 1. Walbro 255 fuel pump 2. TD06 Turbo (about to be upgraded again) 3. Fuel Pressure Regulator 4. Air Intake Manifold 5. changed intercooler 6. Apexi FC 7. larger piping from downpipe 8. injectors i had were 740cc but were replaced with i think 440cc or 600cc (which has made my life hell) 9. apexi clutch 10. piping put it on the dyno and hit 311 with stock MAF. I have a z32 maf but last time i wired it up it blew up the ecu so im a bit afraid to install it but it will happen soon. I have a new turbo and exhaust manifold ready to deploy. looking to push 450HP and see how it goes, when I get bored of 450 im going to do real work on the engine. Currently where I am they have a GTR thats broken the speed record here which is only 11.11 seconds quarter mile and its only 600HP. Things to do: 1. Install new exhaust manifold 2. check brake pads and or calipers 3. possibly changing gearbox 4. install GT35 turbo 5. install oil relocation kit and cooler 6. install some splitfires or corvette igniters 7. fix up the fuel system, may include putting in topfeed injectos to go with my new fuel rail. Remove the fuel ramp pressure regulator

I changed the oil today and saw the hose from the FPR to the intake manifold had popped off, put it back and it seems to have fixed the issue + a little bit of timing done

because the fuel is set to the maximum on those particular cells that it misfires on and when i drop the numbers down a bit, it does make a slight difference, i have no other feedback to go on

Ive had it dyno tuned in another country but the old ecu popped but i kept the binary file so when i get the hako or datalogit i should be able to bring the tune over but i still want to know about the inj map numbers if anyone knows

no tuner in the country im in so i have to do everything like russian roulette

Its been a while now but here is the list of things ive done 1. Walbro 255 fuel pump 2. TD06 Turbo (about to be upgraded again) 3. Fuel Pressure Regulator 4. Air Intake Manifold 5. changed intercooler 6. Apexi FC 7. larger piping from downpipe 8. injectors i had were 740cc but were replaced with i think 440cc or 600cc (which has made my life hell) 9. apexi clutch 10. piping put it on the dyno and hit 311 with stock MAF. I have a z32 maf but last time i wired it up it blew up the ecu so im a bit afraid to install it. I have a new turbo and exhaust manifold ready to deploy. looking to push 450HP

Hello Family, Ive put in my new Apexi FC and have done the timing on the engine via the commander until I order an FC Hako or Datalogit. The issue is at high revs around the 15x15 mark on the map trace i get misfire and I cant work out how to resolve this issue. Its always on the same spot so I started messing with the fuel map on the commander. I dont understand what the numbers are a reference to on the inj map. What does 1.00 reference too? I guess it means 1.00 = 0.00; above 1.00 = more fuel but how much is too much how little is too little? Why do the numbers stop at ~1.4 - they must be referenced to something and I cant find anything on the net. So basically its misfiring and i want to decrease the fuel because i think its too high ~1.30 which i did but it made little to no difference same as increasing the fuel.. anyone got any ideas? Thanks

i didnt mean that the injector timing was af/r

how did you come up with that? It makes more sense that a higher number would mean more fuel wouldnt it?

Hrmm okay - so with the commander no way to calculate the af/r ? im assuming 100 is 14.7

Yep this one, is that based on a percentage or how is that calculated?

Hello, I was hoping someone could explain to me the numerals the injection map shows on the Apexi Power FC's Commander. Seems to be 3 digits with no decimal place from what i can tell, example 100 109 How is this calculated?

Just letting you know I did nearly everything in the list On the way to the airport to get the new turbo the old turbo crapped out so we put the new turbo in. My Z32 MAF arrived and I went to hook that up but fried the ECU - 3 hours later put in a tuned Nismo ECU. The previous owner put wire around a fuse so it wouldnt blow which may have caused the old ECU to pop. The fuel pump is on its way and all thats left is the Splitfires and figuring out how to wire up the Z32 MAF.. I got a diagram but im so afraid after frying the ECU that I dont want to hook it up.

In regards to the relay mod for the fuel pump, would this do? https://www.amazon.com/WIRING-Walbro-1990-99-Eclipse-Talon/dp/B00S6YG966/ref=sr_1_1?s=automotive&ie=UTF8&qid=1508365956&sr=1-1&keywords=walbro+255+relay