Vagcom g/s reading lcr (LATEST LOGS ADDED 19:00)

[psjunkie]

well finally worked out how to do some data logging on the LCR with vagcom

was a bit underwhelmed at what G/S reading ive got,
187 G/S
which is about 230BHP am i right?

well its been mapped at some point as my boost gague
spikes at about 24ish then drops to 19-20 whilst accelerating
so would have thought i would be looking at more overall bhp

any suggestions would be great
ta

 

[8bit]

MAF could be on the way out. Don't forget remaps can change other parameters to make more power, like timing.

What gear did you use? Did you go right to 6500rpm? Can you post a log?

 

[psjunkie]

I used block 2., can do more/others too if need be
Will get that log up tonight

Ben

 

[psjunkie]

Monday,10,October,2011,19:26:40
1ML 906 032 A,,1.8l R4/5VT 0001,

,Group A:,'002,,,,Group B:, Not Running,,,,Group C:, Not Running
,,RPM,Load,Inj. On Time,Mass Flow,,,,,,,,,,
,TIME,,,,,TIME,,,,,TIME,,,,
Marker,STAMP, /min,%, ms, g/s,STAMP,,,,,STAMP,,,,
,0.01,2680,64.7,6.80,35.61,,,,,,,,,,
,0.40,2720,65.4,6.46,35.08,,,,,,,,,,
,0.82,2760,65.4,7.14,34.83,,,,,,,,,,
,1.22,2840,102.3,10.88,66.03,,,,,,,,,,
,1.70,3000,130.8,14.28,87.33,,,,,,,,,,
,2.11,3160,159.4,18.70,108.06,,,,,,,,,,
,2.51,3320,186.5,22.44,134.75,,,,,,,,,,
,2.93,3520,191.7,24.82,142.11,,,,,,,,,,
,3.42,3800,191.7,23.46,144.39,,,,,,,,,,
,3.92,4080,188.7,21.42,143.03,,,,,,,,,,
,4.34,4280,187.2,21.42,154.22,,,,,,,,,,
,4.83,4520,185.7,21.42,161.06,,,,,,,,,,
,5.23,4720,186.5,21.42,166.58,,,,,,,,,,
,5.63,4920,182.7,21.42,173.42,,,,,,,,,,
,6.03,5120,181.2,20.74,177.72,,,,,,,,,,
,6.45,5280,178.2,20.74,179.92,,,,,,,,,,
,6.85,5440,179.7,20.74,184.75,,,,,,,,,,
,7.25,5600,165.4,19.04,181.22,,,,,,,,,,
,7.65,5720,171.4,19.72,186.03,,,,,,,,,,
,8.05,5880,163.2,18.70,184.81,,,,,,,,,,
,8.56,6040,163.9,19.04,186.06,,,,,,,,,,
,9.05,6160,162.4,18.70,186.33,,,,,,,,,,
,9.45,6280,147.4,16.66,182.14,,,,,,,,,,
,9.87,6360,130.8,14.62,153.39,,,,,,,,,,
,10.27,6480,130.1,14.96,155.19,,,,,,,,,,
,10.67,6560,130.8,15.64,174.81,,,,,,,,,,
,11.07,6640,135.3,15.98,173.67,,,,,,,,,,
,11.47,6720,124.1,14.28,150.47,,,,,,,,,,
,11.87,6800,127.8,14.28,149.53,,,,,,,,,,
,12.29,6840,120.3,12.24,141.83,,,,,,,,,,
,12.78,6840,65.4,6.80,77.50,,,,,,,,,,
,13.18,6160,14.3,1.70,10.28,,,,,,,,,,
,13.58,5280,14.3,1.70,10.92,,,,,,,,,,
,13.97,5160,11.3,0.00,10.72,,,,,,,,,,
,14.38,4960,12.0,0.00,11.53,,,,,,,,,,
,14.78,4760,12.0,0.00,11.58,,,,,,,,,,
,15.29,4520,12.0,0.00,10.72,,,,,,,,,,
,15.69,4320,12.0,0.00,10.44,,,,,,,,,,
,16.19,4120,12.0,0.00,10.17,,,,,,,,,,
,16.60,4000,12.8,0.00,9.75,,,,,,,,,,
,17.00,3880,12.8,0.00,9.58,,,,,,,,,,
,17.50,3840,12.0,0.00,9.17,,,,,,,,,,
,18.01,3760,12.0,0.00,8.94,,,,,,,,,,

 

[psjunkie]

hope this makes some sense

 

[8bit]

OK so here it is formatted:

	Group A:	'002			
		RPM	Load	Inj. On Time	Mass Flow
	TIME				
Marker	STAMP	 /min	%	 ms	 g/s
	0.01	2680	64.7	6.8	35.61
	0.4	2720	65.4	6.46	35.08
	0.82	2760	65.4	7.14	34.83
	1.22	2840	102.3	10.88	66.03
	1.7	3000	130.8	14.28	87.33
	2.11	3160	159.4	18.7	108.06
	2.51	3320	186.5	22.44	134.75
	2.93	3520	191.7	24.82	142.11
	3.42	3800	191.7	23.46	144.39
	3.92	4080	188.7	21.42	143.03
	4.34	4280	187.2	21.42	154.22
	4.83	4520	185.7	21.42	161.06
	5.23	4720	186.5	21.42	166.58
	5.63	4920	182.7	21.42	173.42
	6.03	5120	181.2	20.74	177.72
	6.45	5280	178.2	20.74	179.92
	6.85	5440	179.7	20.74	184.75
	7.25	5600	165.4	19.04	181.22
	7.65	5720	171.4	19.72	186.03
	8.05	5880	163.2	18.7	184.81
	8.56	6040	163.9	19.04	186.06
	9.05	6160	162.4	18.7	186.33
	9.45	6280	147.4	16.66	182.14
	9.87	6360	130.8	14.62	153.39
	10.27	6480	130.1	14.96	155.19
	10.67	6560	130.8	15.64	174.81
	11.07	6640	135.3	15.98	173.67
	11.47	6720	124.1	14.28	150.47
	11.87	6800	127.8	14.28	149.53
	12.29	6840	120.3	12.24	141.83
	12.78	6840	65.4	6.8	77.5
	13.18	6160	14.3	1.7	10.28
	13.58	5280	14.3	1.7	10.92
	13.97	5160	11.3	0	10.72
	14.38	4960	12	0	11.53
	14.78	4760	12	0	11.58
	15.29	4520	12	0	10.72
	15.69	4320	12	0	10.44
	16.19	4120	12	0	10.17
	16.6	4000	12.8	0	9.75
	17	3880	12.8	0	9.58
	17.5	3840	12	0	9.17
	18.01	3760	12	0	8.94

 

[8bit]

... and here's a quick graph:

Did you definitely have the throttle pinned flat right up to the redline? If so then looks like there's a dip around 6200rpm. If so then that would normally be explained by the standard TIP collapsing, but looks like you've got an upgraded one - although that doesn't mean it's not collapsing I guess. Did you see the boost dropping on your gauge around the same RPM?

 

[psjunkie]

It doesn't seem to drop boost holds around 19-20

Ben

 

[ibizacupra]

possibly a little tired maf

 

[psjunkie]

possibly a little tired maf

Any way of checking this further?
Any other logs etc? Or Shal I just bite the bullet and buy a new one?

Cheers Ben

 

[ibizacupra]

if you log 002,115,118 at same time it will show how much boost is being asked for, and how hard the n75 is being made to achieve this.... so if its tired (turbo as well as maf) then its requested boost would be combined with a max'd n75 duty cycle 95% level

 

[psjunkie]

Will get out and log these tonight get them posted up and see what you lot think as its all numbers to me


Cheers Ben

 

[psjunkie]

,Group A:,'002,,,,Group B:,'115,,,,Group C:,'118
,,RPM,Load,Inj. On Time,Mass Flow,,RPM,Load,Absolute Pres.,Absolute Pres.,,RPM,Temperature,Load,Absolute Pres.
,TIME,,,,,TIME,,,,,TIME,,,,
Marker,STAMP, /min,%, ms, g/s,STAMP, /min,%, mbar, mbar,STAMP, /min,°C,%, mbar
,0.01,2680,37.6,4.42,21.47,0.42,2720,63.9,1640.0,970.0,0.82,2800,30.0,100.0,1120.0
,1.22,2920,109.0,11.90,69.64,1.62,3040,128.6,2180.0,1580.0,2.02,3240,26.0,100.0,1890.0
,2.53,3520,188.0,22.10,138.36,2.93,3800,191.7,2320.0,2490.0,3.42,4240,24.0,87.5,2460.0
,3.82,4760,191.0,21.76,168.58,4.22,5120,182.7,2370.0,2210.0,4.64,5400,24.0,100.0,2140.0
,5.04,5440,177.4,20.74,180.56,5.44,5440,174.4,2350.0,2110.0,5.93,5440,26.0,100.0,2120.0
,6.33,5440,172.9,20.06,178.44,6.75,5520,172.2,2190.0,2110.0,7.17,5680,28.0,94.1,2080.0
,7.65,5880,164.7,19.04,185.69,8.16,6040,152.6,1910.0,2090.0,8.65,6200,30.0,73.7,1970.0
,9.05,6280,151.1,17.00,165.75,9.47,6360,133.1,1770.0,1670.0,9.87,6480,32.0,71.4,1630.0
,10.37,6600,131.6,15.64,168.83,10.78,6680,120.3,1670.0,1740.0,11.20,6760,33.0,60.0,1590.0
,11.68,6840,126.3,13.60,156.67,12.08,6840,85.0,1150.0,1710.0,12.48,6840,33.0,0.0,1230.0
,12.88,6400,14.3,1.70,9.89,13.28,5760,15.0,980.0,1100.0,13.79,5080,33.0,0.0,1050.0
,14.19,4840,12.0,0.00,10.58,14.59,4640,12.0,980.0,1010.0,14.99,4440,33.0,0.0,1010.0

 

[sambryant]

not working for me, strange

 

[psjunkie]

not working for me, strange

hmm weird just worked on my phone,
Presuming the MAF is shagged tbh, just want to be as sure as i can though...

will get our lass onto it she understands all this excel ****

 

[csd_19]

Certainly makes for an interesting plot

 

[psjunkie]

Hmm what do u think its telling me ?

 

[csd_19]

I wonder if its a fuel pump getting tired? Certainly has enough fuel down low to give a remap level of torque (just shy of 270lbft), just not enough at the top end for the power. ECU possibly trying to add more fuel but can't, and hence shuts the throttle body itself. Clever things these 1.8Ts!

Have you tried driving it with the MAF unplugged to see if it goes any better?

 

[psjunkie]

I have but it was rather greasy n just spun like hell

 

[csd_19]

lol okay you need a dry day to try that then!