2005 GT tuning project

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2005 GT tuning project

Unread postby Pappacosworth » Thu Jun 02, 2016 10:26 pm

I got HPtuners Pro device and I'm now starting to tune. I've been tuning with Qh and Binaryeditor earlier, but I liked the opportunity to tune other brands too.
4.6 calibration looks simple when you look at Hptuners VCM Editor, is it or is it the software :shock:
I swapped TB from stock 2x58 to BBK 2x62, effective area 14% bigger so I adjusted throttle body model tables and predicted angle axis values.
Injectors will be swapped too, I changed values according to Ford racing data sheet.
Now I try to get car running clean before I install new camshafts.
Some questions too, calibration looks rather different than eec4 or eec5, cranking fuel is not adjusted with pw, idle tuning is different too because its adjusted by tb. Is there something I must adjust ?
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Re: 2005 GT tuning project

Unread postby Pappacosworth » Mon Jun 06, 2016 1:22 pm

I changed injector settings per Ford Racing pdf, and test drive went ok. Tip-in might be little lean, I must install wb next. That leads to my next question, can I disable one 02 sensor, so I could put wideband sensor in its place? I't can be done in eec4 and 5 but I can't find it in HPtuners VCM editor. Cams are now installed and degreed.
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Re: 2005 GT tuning project

Unread postby Pappacosworth » Wed Jun 08, 2016 12:42 pm

I welded bung for wb, was easier that way. BTW, I like HpTuners software for now at least, easy and reliable, histograms helpful.

2016-06-08.jpg


I suppose that maf curve is too lean at top end, if you could look at the picture. I circled afr error at graphs, and trims are adding 10-16% higher loads.
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Re: 2005 GT tuning project

Unread postby decipha » Wed Jun 08, 2016 4:30 pm

i have absolutely no idea im horrible with graphs, either real-time data or a listing of payload values and i could give you an answer in a split second
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Re: 2005 GT tuning project

Unread postby Pappacosworth » Wed Jun 08, 2016 11:50 pm

If you have hptuners software, here is log and tune. I don't know if opening tune needs credits, but I suppose that log will open.
Actual vs commanded afr are different, but only when accelerating open loop. No big difference but short trims are 10-16% adding fuel when maf is more than 50% of max.
When maf curve is altered, do I need to adjust failed maf tables too?
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Re: 2005 GT tuning project

Unread postby Pappacosworth » Fri Jun 17, 2016 12:34 pm

Today was dynoday. Yesterday I did some roadtuning to save dynotime. Tuning was succesfull, car works excellently. Original power curve had big downward lump at 5300 rpm which I managed to fix with camshaft timing adjustment.
Horsepower gain was only 13 hp, but biggest modification was cam swap. Cam is mild, no software and phaser mod required. New curve wins at 3600 rpm and raises steadily to rpm limit. Maf is near limit. If new mods occur it must be swapped.
Max spark advance 31 degrees, and wot afr little too rich under 12. I couldn't get it leaner, maybe maf maxed out. Safer this way :)
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Re: 2005 GT tuning project

Unread postby Pappacosworth » Sun Sep 04, 2016 3:08 am

Owner was not happy with idle, specially at cold. And it was not good or bad all time, random hanging idle. I thought it was BBK tb sticking because it was new and I didn't make lot of changes to idle. Yesterday I uploaded new version where I had copied TB settings from GT500 tune. I also edited cam tables and wot afr tables according to dyno log and graph. Now he is very happy with it. Ford original cam table has some faults that shows in dyno curve. I added cam timing in bottom of pits, and smoothed everywhere.

2016-09-04.jpg

2016-09-04 (1).jpg
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