Ralph Wiggum Moar Powar Babeh Lifetime Members 19,332 Member For: 19y 7m 11d Gender: Male Location: Perth Posted 31/10/12 12:23 PM Share Posted 31/10/12 12:23 PM Autocorrect fail, I meant battery offset table values...Damn Iphone. Link to comment https://www.fordxr6turbo.com/forum/topic/82495-fg-xr6t-tuner-help-required/page/6/#findComment-1318321 Share on other sites More sharing options...
towsw001 Member 67 Member For: 12y 11m 16d Gender: Male Location: Adelaide Posted 05/11/12 09:48 AM Share Posted 05/11/12 09:48 AM Still travelling alright FG09T?Have you tried tuning again or has it reoccured at stock? Link to comment https://www.fordxr6turbo.com/forum/topic/82495-fg-xr6t-tuner-help-required/page/6/#findComment-1321024 Share on other sites More sharing options...
turbotrana Member 2,586 Member For: 22y 1m 4d Gender: Male Posted 07/11/12 07:01 AM Share Posted 07/11/12 07:01 AM Whats your theory on this Ralphy. It didn't fall on deaf ears. Some tuning changes I did to some G302 injectors today stopped stalling once I started reducing the battery offsets from my theory figures derived from the Ford Racing Injector sheets On 31/10/2012 at 12:23 PM, Ralph Wiggum said: Autocorrect fail, I meant battery offset table values...Damn Iphone. Link to comment https://www.fordxr6turbo.com/forum/topic/82495-fg-xr6t-tuner-help-required/page/6/#findComment-1321960 Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,332 Member For: 19y 7m 11d Gender: Male Location: Perth Posted 07/11/12 08:28 AM Share Posted 07/11/12 08:28 AM do you remember a while back I posted up the at min pulse width and battery offset @14v shouldn't exceed 1.5ms? Link to comment https://www.fordxr6turbo.com/forum/topic/82495-fg-xr6t-tuner-help-required/page/6/#findComment-1321996 Share on other sites More sharing options...
turbotrana Member 2,586 Member For: 22y 1m 4d Gender: Male Posted 07/11/12 02:54 PM Share Posted 07/11/12 02:54 PM You posted up some pretty good stuff in that DIY tuning thread. Pitty to lock it though.I did reread it. Knowing it shouldn't exceed 1.5ms is pretty important. With the GT500 injectors, I had it at 1.6972ms and experienced the spark source go crazy switching between 9 (idle spark) and 1 (base spark) at idle at times and always dipping into 1 when at idle.I reduced it down to 1.6104 and it made a world of difference. It dipped heaps less and no crazy switching.Is this a side effect you are talking about having it over 1.5ms. Can you explain more???Nevertheless I am going to change it to under 1.5ms as you said by reducing min pulsewidth down and see if it totally stops it dipping into spark source 1 at idle. Link to comment https://www.fordxr6turbo.com/forum/topic/82495-fg-xr6t-tuner-help-required/page/6/#findComment-1322161 Share on other sites More sharing options...
IH8TOADS Silver Donating Members 3,618 Member For: 19y 9m 26d Gender: Male Location: OZ Posted 07/11/12 10:59 PM Share Posted 07/11/12 10:59 PM Your low flow area of your custom tune injector calibration was 8% lean. when coming of the throttle and off the open loop base fuel table (and into the closed loop feedback) may have been causing some confusion. Cleaning up the trims can only help! Link to comment https://www.fordxr6turbo.com/forum/topic/82495-fg-xr6t-tuner-help-required/page/6/#findComment-1322239 Share on other sites More sharing options...
Mr_4.0 Member 1,096 Member For: 14y 3m 15d Posted 08/11/12 06:55 AM Share Posted 08/11/12 06:55 AM When I've tuned older e series, quick stopping/stalling under brakes etc are issues usually to do with a function of the dash pot decay Rate. Really testing my memory though haha. I've never actually tuned a b or f series myself from scratch but pretty sure they don't have a similar table. Is there a table which directly tells the engine how quickly to drop revs under zero throttle? I know e series ecu's are MUCH simpler than these but just thought I'd see if it ticked anthing in someone's head... Link to comment https://www.fordxr6turbo.com/forum/topic/82495-fg-xr6t-tuner-help-required/page/6/#findComment-1322425 Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,332 Member For: 19y 7m 11d Gender: Male Location: Perth Posted 08/11/12 07:04 AM Share Posted 08/11/12 07:04 AM There are idle dash pot and idle airflow decay tables. Link to comment https://www.fordxr6turbo.com/forum/topic/82495-fg-xr6t-tuner-help-required/page/6/#findComment-1322436 Share on other sites More sharing options...
Mr_4.0 Member 1,096 Member For: 14y 3m 15d Posted 08/11/12 09:17 AM Share Posted 08/11/12 09:17 AM That's where I would be looking for the "stalling under sudden braking" issues! Link to comment https://www.fordxr6turbo.com/forum/topic/82495-fg-xr6t-tuner-help-required/page/6/#findComment-1322505 Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,332 Member For: 19y 7m 11d Gender: Male Location: Perth Posted 08/11/12 10:38 AM Share Posted 08/11/12 10:38 AM turbotrana had some injector scaling issues that needed to be sorted first, but yes you are correct, idle air flow decay and dash pot decay help immensely with revs dropping to stall problems Link to comment https://www.fordxr6turbo.com/forum/topic/82495-fg-xr6t-tuner-help-required/page/6/#findComment-1322567 Share on other sites More sharing options...
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