Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - PFC Users with DW 740cc, I need your help

kernel · 04-02-2007, 02:38 PM

thanks alot for explaining

About the lag time, well I tried the stock lag time and it so lean, to make it idle at ~13 AFR, i need to make a correction in fuel map up to like 150 and the throttle response is so bad..

I can't do at all the idle procedure with that kind of lag time, the car shut down on idle because it too lean. (0.00ms in PFC is 0.58ms for stock injectors I got told)

I tried alot of different lag time and it come always to the same end, bad throttle response. I know under 80C it could be the water correction that do it and tried few setting and never worked or I was totaly too rich and the engine response was finaly there.

About the idle correction in setup menu, I don't see that. It can maybe turned off with PowerExcell ? I have a PFC for red top.

Well, thanks again for the info. I knew that I still using the 370cc body with 740cc from DW but I didn't know if it still has the same lag time. I'm currently a student as mechanician so..I can't know everything. I hope my explaination are good and you understand well what I'm trying to say. It hard to help someone when you don't know what he talk about really.

04-02-2007, 02:38 PM	#11
kernel Zilvia Addict Join Date: Jan 2005 Location: Canada Age: 40 Posts: 934 Trader Rating: (28)	thanks alot for explaining About the lag time, well I tried the stock lag time and it so lean, to make it idle at ~13 AFR, i need to make a correction in fuel map up to like 150 and the throttle response is so bad.. I can't do at all the idle procedure with that kind of lag time, the car shut down on idle because it too lean. (0.00ms in PFC is 0.58ms for stock injectors I got told) I tried alot of different lag time and it come always to the same end, bad throttle response. I know under 80C it could be the water correction that do it and tried few setting and never worked or I was totaly too rich and the engine response was finaly there. About the idle correction in setup menu, I don't see that. It can maybe turned off with PowerExcell ? I have a PFC for red top. Well, thanks again for the info. I knew that I still using the 370cc body with 740cc from DW but I didn't know if it still has the same lag time. I'm currently a student as mechanician so..I can't know everything. I hope my explaination are good and you understand well what I'm trying to say. It hard to help someone when you don't know what he talk about really.