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I installed their latest kit last fall and am going through tuning it now that winter is over (MA). Is it normal for the AF ratio at idle to bounce between around 12 up to 17 sometimes? The datalog for idle looks like a wave where it pulls then adds fuel trying to get to the middle. I was suspecting my injector times aren't right. I have ID1050x and am using the times from their site. before I used the times from some other site that said the times were too low and I had much worse fluctuations with those numbers to the point the fuel trims would cause the rpms to surge. Does anyone have any ideas or advice?
I installed their latest kit last fall and am going through tuning it now that winter is over (MA). Is it normal for the AF ratio at idle to bounce between around 12 up to 17 sometimes? The datalog for idle looks like a wave where it pulls then adds fuel trying to get to the middle. I was suspecting my injector times aren't right. I have ID1050x and am using the times from their site. before I used the times from some other site that said the times were too low and I had much worse fluctuations with those numbers to the point the fuel trims would cause the rpms to surge. Does anyone have any ideas or advice?
The AF ratio at idle should be nice and smooth. It could be tuning related. It could just need some type of smoothing enabled, or it could be a MAP sensor issue. My tuner smoothed out this same issue on my S2K.
There is a guy who has used 2 of the G series turbos on his PTuning kit. I don't know if there was any modifications that needed to be made or not.
I know the 3582 is an option, but I'm wondering if something bigger like the 3584, or a bigger G series turbo would work.
Ptuning said the following:
1) G series flanges are different and look like they will fit but have a machined lip that will need to be dealt with.
2) Also there is no guarantee on the down pipe fitment and that it will most likely need to be modified.
3) I also assume the intake pipe needs to be massaged / reworked.
4) The oil and coolant supply should be the same.
I have a GTX3582 on the car right now with a .82A/R. I miss the response from the GT3076 i had on the car before. I will be doing a G30-660 or 770 but have been too busy to fiddle with the car. I am also happy with a lower power level to save the driveline if the response is "MORE RAPID".
If i jump down that rabbit hole I will update with what works and what does not...
The AF ratio at idle should be nice and smooth. It could be tuning related. It could just need some type of smoothing enabled, or it could be a MAP sensor issue. My tuner smoothed out this same issue on my S2K.
I initially thought it was my map sensor but the same thing was happening with the stock one. I think it might be my injector dead times. I'll try playing with it this weekend and then I might just give Evan's a call. I really want to do this myself though seeing as I've done everything else myself. I should also mention I have and 08 with an AP1 return fuel system and an aem 340 pump. I also have an aem fuel rail with the AP1 pressure regulator with a pressure gauge on it. I set the fuel peramerters based on the pressures already in there. Should I change it based on what the gauge reads? Am I dumb for not doing that?
Also, that vibration fix earlier in the thread should be a requirement. The vibration was too much for me and I usually don't care about that stuff. It feels like stock again vibration wise.
Ptuning said the following:
1) G series flanges are different and look like they will fit but have a machined lip that will need to be dealt with.
2) Also there is no guarantee on the down pipe fitment and that it will most likely need to be modified.
3) I also assume the intake pipe needs to be massaged / reworked.
4) The oil and coolant supply should be the same.
I have a GTX3582 on the car right now with a .82A/R. I miss the response from the GT3076 i had on the car before. I will be doing a G30-660 or 770 but have been too busy to fiddle with the car. I am also happy with a lower power level to save the driveline if the response is "MORE RAPID".
If i jump down that rabbit hole I will update with what works and what does not...
Wanna trade turbos? My GTX3576 for your 3582. I'm running the Inline Pro F24 bottom end so it spools the 3576 pretty quick. Plus my Infinity has anti lag set up so I can hit the button on my shift knob and build boost any time.
To anyone who has this installed in an '06 and up using flashpro, where did you put your o2 sensors? I have mine in the intermediate pipe and I'm having trouble keeping AFRs in check at idle. Primary is behind the downpipe and the wideband is in the spot behind the flex portion. Should the primary be somewhere in the downpipe?
