LC Logs

[Chaz]

So,

After reading Rob thread about the VAGCom logs on his car, I just went out and did some logs on mine. I think they look ok but I wonder if someone can confirm that everything is happy!

	Group A:	'003			
		RPM	Mass Flow	Load	Ign. Timing
	TIME				
Marker	STAMP	 /min	 g/s	%	 °BTDC
		840	3.58	2.7	-0.8
		800	2.69	2	6.8
		800	2.75	2	6
		1160	3.58	2.7	9.8
		800	2.75	2	7.5
		1480	14.78	11.4	18
		1560	16.06	12.5	18
		2720	27.42	15.7	26.3
		1560	6.06	5.1	9
		1640	17.22	13.3	16.5
		2200	36.69	27.5	19.5
		2840	3.03	5.1	18.8
		2200	26.92	18	20.3
		2600	62.83	99.2	15.8
		3440	115.47	100	7.5
		4400	140.72	100	13.5
		5320	164.11	100	13.5
		6080	170.78	100	16.5
		5600	7.83	7.8	39.8
		4760	10.44	8.2	4.5
		4520	10.86	8.2	3.8
		4200	10.36	7.8	3
		3800	9.17	7.5	2.3
		2240	5.92	5.1	-1.5
		2320	5.89	5.1	-1.5
		1960	5.11	4.3	-3

	Group B:	'115
		Engine Speed	Engine Load	Spec. Boost	Actual Boost
		700-6800 RPM	15-150%		990-1800 mbar	<=1800 mbar
		 /min		%		mbar		mbar


		1000	        24.8		980		990
		840	        18.8		980		980
		800	        18		980		980
		1000	        40.6		980		970
		960	        15		980		980
		760	        17.3		980		980
		1400	        51.1		980		1000
		1920	        57.9		980		1030
		2640	        13.5		980		1030
		1520	        22.6		980		980
		1760	        54.9		980		1010
		2520	        78.9		980		1300
		2480	        39.1		980		990
		2280	        64.7		980		1140
		2800	        141.4		2240		1850
		3800	        163.2		2130		2050
		4720	        165.4		2100		2030
		5600	        160.2		2060		1900
		6280	        142.1		1990		1810
		4960	        11.3		980		1030
		4680	        12		980		1010
		4440	        12		980		1010
		4080	        12.8		980		1010
		3640	        12.8		980		1000
		2560	        12.8		980		1000
		2200	        13.5		980		1000

	Group C:	'118
		Engine Speed	Air Temp In	Boost Dut Cyc	Actual Boost
		700-6800 RPM	<=110 C		0-100%		<=1800 mbar
 		/min		°C		%	 	mbar

		840		21		0		990
		800		21		0		980
		800		21		0		980
		1480		21		0		980
		840		21		0		980
		1080		21		0		970
		1360		21		0		1000
		2320		19		0		1090
		1960		18		0		1000
		1520		18		0		980
		1920		18		0		1050
		2720		18		0		1210
		2120		18		0		1110
		2400		18		0		1160
		3080		18		85.5		2250
		4040		21		82.7		2140
		5000		26		84.7		2020
		5840		33		85.5		1880
		6480		39		83.1		1810
		4880		34		0		1010
		4600		31		0		1010
		4320		29		0		1010
		3920		27		0		1010
		3080		26		0		1000
		2400		25		0		1000
		2080		24		0		1000

Cheers!

 

[Chaz]

anyone?

 

[bigjode]

any mods or remap?

 

[cordobabrendy]

was this 2nd or 3rd gear per chance? Reason I say is that your actual boost never matches requested and its over too quick to be detailed enough to be informative.

 

[Chaz]

it was 3rd gear from about 2.5k to the red line

mods - jabba remap, supersprint catback, Carbonio CAI

 

[cordobabrendy]

if you can only log in 3rd (roads too short!) then only run a single block at a time as the more you run (to a max of 3) the slower the sample rate.

 

[Chaz]

ok,, will see if I can get another one done today and will try a 4th gear log, if I can.

Also, someone on "the other side" mentioned the timing...

"By the looks of the logs it is pulling over 18' of timing.... thats not good (if it's doing that)."

But has not said why? And if it is bad, what do I need to to do fix it?

 

[cordobabrendy]

for timing i think ideally you want to log your cf's which is block 020 if i remember rightly. that will show you all four cylinders, as i said maybe run 2 or 3 identical runs and log each set of block seperately so that you are getting more than one sample per second.
If you are having high cf's (over 5 id say) then its either down to crap petrol or the air going into the engine is very hot, of course there could be many other reasons but these are an example of what causes it. Better grade petrol ie optimax, super 97 or 98 ron fuel doesnt detonate as early as normal 95 rated stuff, maybe worth putting a tank of better fuel in if you havent already and disconnecting the battery for a couple of minutes (leave a door open to discharge any residual leccy still in the wiring) then try the logging.

 

[Chaz]

ok,, will try and do some more logs over the weekend and see what happens.. will also disconnect the battery for a bit as well.

Cheers

 

[Chaz]

oh, and I am using Tescos 99Ron at the moment

 

[cordobabrendy]

your timing shouldnt be too bad if you are using better fuel then mate. ignore that btc log you ran for now and try the cf readings.

 

[Chaz]

ok, so here are some 4th gear runs. Only logging one at a time.

Group A:	'115
		Engine Speed	Engine Load	Spec. Boost	Actual Boost
		700-6800 RPM	15-150%		990-1800 mbar	<=1800 mbar
		 /min		%		mbar		mbar
		2360		12.8		1000		1010
		2320		12.8		1000		1000
		2320		40.6		1000		980
		2400		93.2		2150		1290
		2560		124.8		2190		1720
		2680		150.4		2240		2050
		2920		175.2		2280		2340
		3120		179.7		2240		2360
		3320		164.7		2170		2130
		3520		168.4		2130		2160
		3760		166.9		2150		2140
		3960		166.9		2180		2180
		4160		164.7		2160		2160
		4360		163.9		2130		2160
		4560		161.7		2110		2130
		4720		161.7		2130		2120
		4880		160.9		2130		2110
		5040		162.4		2140		2130
		5200		163.9		2140		2080
		5360		161.7		2150		2050
		5520		158.6		2090		2010
		5640		158.6		2070		1990
		5800		154.9		2020		1960
		5920		151.1		1990		1920
		6000		147.4		1960		1930

Group A:	'115

Engine Speed	Air Temp In	Boost Dut Cyc	Actual Boost
700-6800 RPM	<=110 C		0-100% 		<=1800 mbar
 /min		°C		%	 	mbar

3160		21		0		1020
3120		21		0		1020
3120		21		0		1020
3200		21		87.8		1210
3360		21		87.1		2150
3600		21		82		2280
3800		21		80.8		2160
4000		23		82		2190
4240		24		81.6		2170
4440		26		81.6		2160
4640		28		81.6		2120
4880		31		82.7		2090
5040		33		83.5		2050
5200		36		84.7		2060
5360		37		85.5		2020
5520		39		85.5		1990
5680		41		85.5		1950
5840		43		85.5		1900
5960		45		85.5		1930
6080		46		84.7		1880
6200		48		84.3		1850
6320		49		83.9		1840
6440		50		83.1		1820

I did a run on group 20 as well and they read 0 most of the time, however there is a section where they go up to 3, then 2.3 and then back to 0. Another bit where they read 1.5 and then 0.8.

Is that ok?

Cheers

 

[cordobabrendy]

looks fine, obvious you are remapped, have you done anything to the exhaust, induction etc? maybe a fmic next ?

 

[Pabs]

look ok to me.

I sometimes see highish cfs on cylinder 4 (i think its further away from the air intake, so its usually 4 that has the higher cf's) - i think i've seen some 6's at one point.

But since the FMIC I've actually been able to increase the timing/boost with no ill effects

 

[Chaz]

looks fine, obvious you are remapped, have you done anything to the exhaust, induction etc? maybe a fmic next ?

Cool - cheers, yeah I have a jabba map, supersprint exhaust and carbonio CAI. FMIC is on the list, but since getting engaged I have to save for a wedding and not buy as many toys for the car

 

[karl.w]

A fmic should definitely be next on your shopping list.
As you can see your intake temps are hitting 50oc max at the moment and it is pretty cold outside at this time of year. Come summer time your temps are going to be alot higher and if your intake temps get to high then your ecu will pull the timing back. (CF's block 020)
A good fmic should reduce your intake temps alot. Then if you want to you should be able to advance the timing to get even more power.