Effects of heatsoak

[LaserSVT]

2nd pull; 3, 31, 115. Car was fast today, Iswing- what's this water/meth kit?

10.1	5800	364.08	100	9	10.15	0.81	0.84	0.83	0.83	10.06	5760	154.1	1900	1780
10.23	5840	364.08	100	11.3	10.28	0.805	0.83	0.82	0.835	10.19	5800	152.6	1900	1770
10.35	5880	364.08	100	12	10.4	0.81	0.835	0.82	0.83	10.31	5840	151.1	1910	1770
10.48	5920	364.08	100	13.5	10.52	0.815	0.84	0.825	0.83	10.45	5920	151.1	1920	1760
10.61	5960	364.08	100	14.3	10.64	0.81	0.845	0.83	0.835	10.57	5960	151.1	1920	1740
10.72	6000	364.08	100	18	10.75	0.815	0.84	0.825	0.84	10.68	6000	149.6	1930	1740
10.85	6080	364.08	100	12.8	10.89	0.805	0.84	0.825	0.83	10.8	6040	147.4	1930	1740
10.98	6120	364.08	100	13.5	11.03	0.81	0.845	0.83	0.835	10.93	6080	147.4	1930	1740
11.1	6120	364.08	99.6	12.8	11.14	0.81	0.835	0.83	0.835	11.07	6120	145.1	1940	1750
11.23	6160	364.08	100	18.8	11.28	0.815	0.84	0.83	0.84	11.18	6160	145.9	1940	1740
11.37	6200	364.08	99.6	18.8	11.4	0.805	0.83	0.815	0.835	11.32	6200	143.6	1940	1750
11.49	6240	364.08	100	13.5	11.53	0.8	0.835	0.825	0.83	11.44	6240	142.9	1940	1760
11.62	6320	364.08	100	14.3	11.65	0.805	0.83	0.815	0.83	11.57	6280	143.6	1950	1740
11.74	6360	364.08	99.6	14.3	11.78	0.805	0.835	0.83	0.83	11.7	6320	142.9	1950	1740
11.87	6360	364.08	100	14.3	11.9	0.795	0.835	0.83	0.825	11.82	6360	141.4	1950	1750
11.99	6400	364.08	99.6	19.5	12.03	0.805	0.835	0.825	0.835	11.95	6400	141.4	1950	1750
12.1	6440	364.08	100	15.8	12.15	0.8	0.83	0.825	0.835	12.07	6440	139.8	1960	1750

Look I hate to be uber newb here but I have to learn somewhere. What is each part of that data-log? RPMs I understand but is the rest boost, IATs, AFRs and what? Just let me know what oder I am looking at. Also, is this the vagcom log David had mentioned to me? Seems I remember 3,31 and 115 he said to help figure out what my tune is doing to help figure out what kind it is.

[RS Sick]

NP, I'm a noob too but enjoy learning.

columns left to right: time stamp, RPM, combined MAF (max out at 364.08 unless measured individually in block 2), throttle valve angle, ignition timing, time stamp, next four columns are lambda or AFR, time stamp, RPM, no idea, boost requested, boost actual.

Boost actual should be close to boost requested all the way up to about 5,200 rpm, after that combo of small snails and back pressure of precats prevent full boost to redline. But this is all based on what I've learned from these forums.

[LaserSVT]

I have a stupid follow up question then, 1960 what? What measurement is that taken in? I know PSI and BAR and N/mm2 but cant figure out what that measurement is.

[DHall1]

Bar minus atm

[DHall1]

My two step launch control ecu has landed.

Testing tomorrow

[LaserSVT]

Bar minus atm

Hello sir, that is the data you said I need to log with my friends vagcom in 3rd from 2500- redline right?

Also I have no idea what that means "Bar minus ATM" I dont know what ATM is nor how much boost in Bar the car is making so i dont understand the equation.

[RKturbo]

logs shows the boost is in millibars. 1psi of boost is 0.01450 mbar. ATM is atmospheric which is 'roughly' 1000 mbar you have to deduct that from boost shown to get actual. Sooo the actual max boost in the log above is 1780-1000 for ATM leaving 780 mbar which converts to roughly 11.3lbs of boost.

[RS Sick]

I have a stupid follow up question then, 1960 what? What measurement is that taken in? I know PSI and BAR and N/mm2 but cant figure out what that measurement is.

1960 Millibar - but this includes atmospheric pressure (aprox 1,000 mbar at sea level) so you have to subtract that. My tune calls for 2060 max, and at 2,500' elevation, my atmospheric mbar is 925. 2060-925 = 1135 mbar or 16.5 PSI.

[RS Sick]

RK beat me to it. But yes, boost tapers to almost 12 psi by redline considering my altitude.

[RS Sick]

My two step launch control ecu has landed.

Testing tomorrow

Built into 10sec tune?

launch video possible?

[RKturbo]

BTW, maybe Dave or one of the other more knowledgeable guys can chime in but that boost seems a little low for a tuned car to me. I think the requested seems about right at about 14lbs. Sure no leaks?

2nd pull; 3, 31, 115. Car was fast today, Iswing- what's this water/meth kit?

10.1	5800	364.08	100	9	10.15	0.81	0.84	0.83	0.83	10.06	5760	154.1	1900	1780
10.23	5840	364.08	100	11.3	10.28	0.805	0.83	0.82	0.835	10.19	5800	152.6	1900	1770
10.35	5880	364.08	100	12	10.4	0.81	0.835	0.82	0.83	10.31	5840	151.1	1910	1770
10.48	5920	364.08	100	13.5	10.52	0.815	0.84	0.825	0.83	10.45	5920	151.1	1920	1760
10.61	5960	364.08	100	14.3	10.64	0.81	0.845	0.83	0.835	10.57	5960	151.1	1920	1740
10.72	6000	364.08	100	18	10.75	0.815	0.84	0.825	0.84	10.68	6000	149.6	1930	1740
10.85	6080	364.08	100	12.8	10.89	0.805	0.84	0.825	0.83	10.8	6040	147.4	1930	1740
10.98	6120	364.08	100	13.5	11.03	0.81	0.845	0.83	0.835	10.93	6080	147.4	1930	1740
11.1	6120	364.08	99.6	12.8	11.14	0.81	0.835	0.83	0.835	11.07	6120	145.1	1940	1750
11.23	6160	364.08	100	18.8	11.28	0.815	0.84	0.83	0.84	11.18	6160	145.9	1940	1740
11.37	6200	364.08	99.6	18.8	11.4	0.805	0.83	0.815	0.835	11.32	6200	143.6	1940	1750
11.49	6240	364.08	100	13.5	11.53	0.8	0.835	0.825	0.83	11.44	6240	142.9	1940	1760
11.62	6320	364.08	100	14.3	11.65	0.805	0.83	0.815	0.83	11.57	6280	143.6	1950	1740
11.74	6360	364.08	99.6	14.3	11.78	0.805	0.835	0.83	0.83	11.7	6320	142.9	1950	1740
11.87	6360	364.08	100	14.3	11.9	0.795	0.835	0.83	0.825	11.82	6360	141.4	1950	1750
11.99	6400	364.08	99.6	19.5	12.03	0.805	0.835	0.825	0.835	11.95	6400	141.4	1950	1750
12.1	6440	364.08	100	15.8	12.15	0.8	0.83	0.825	0.835	12.07	6440	139.8	1960	1750

[RS Sick]

Pretty sure they confirmed boost taper at upper RPMs is normal. Same log- earlier RPM range, confident no leaks.

4.85	3240	244.39	99.6	9.8	4.89	0.07	0.07	0.565	0.115	4.82	3240	146.6	2070	1750
4.95	3320	255.17	100	7.5	4.99	0.06	0.085	0.1	0.09	4.92	3280	154.1	2070	1840
5.04	3360	261.19	100	11.3	5.08	0.055	0.06	0.07	0.105	5.01	3360	157.9	2060	1930
5.15	3400	260.06	100	6	5.18	0.05	0.05	0.1	0.07	5.11	3360	162.4	2060	1970
5.26	3480	277	100	10.5	5.3	0.06	0.065	0.075	0.08	5.21	3440	168.4	2050	2000
5.38	3560	281.14	100	6	5.41	0.655	0.295	0.72	0.175	5.34	3480	171.4	2050	2040
5.49	3560	292.78	100	9.8	5.51	0.735	0.725	0.775	0.78	5.45	3560	175.2	2040	2050
5.58	3680	276.31	100	6	5.6	0.775	0.8	0.805	0.79	5.55	3640	174.4	2030	2060
5.69	3720	290.56	100	6	5.73	0.8	0.82	0.815	0.815	5.65	3640	175.9	2020	2060
5.81	3800	297.86	100	11.3	5.84	0.805	0.82	0.81	0.81	5.77	3760	175.2	2010	2050
5.9	3840	302.36	100	6	5.93	0.805	0.825	0.81	0.82	5.88	3840	174.4	2000	2040
6	3880	299.86	100	7.5	6.06	0.81	0.825	0.8	0.82	5.96	3880	172.9	2000	2040
6.12	4000	309.11	100	8.3	6.15	0.805	0.825	0.815	0.815	6.09	3960	172.2	1990	2030
6.24	4040	308.78	100	11.3	6.27	0.815	0.835	0.81	0.82	6.2	4000	172.2	1980	2020
6.33	4080	313.89	100	11.3	6.36	0.81	0.82	0.81	0.82	6.29	4040	169.9	1980	2010
6.45	4160	312.06	100	7.5	6.49	0.8	0.83	0.815	0.815	6.4	4120	169.2	1980	2000
6.57	4200	320.69	100	10.5	6.61	0.815	0.835	0.815	0.815	6.53	4200	168.4	1970	1980

[RKturbo]

Ahhhhh there we go. Much better.

[RS Sick]

Sorry, only have a limited version of excel so I apologize for all the copy pasted logs. there's probably a way to format for a better view. All of 115

2600	1000	1090
2600	1030	1110
2640	1080	1130
2680	1140	1140
2680	1220	1160
2720	1230	1180
2760	1260	1170
2800	1280	1190
2840	1300	1230
2880	1330	1250
2920	1390	1260
2920	1470	1280
2960	1560	1310
3040	1600	1360
3040	1680	1430
3120	1800	1510
3120	1880	1570
3200	2080	1670
3240	2070	1750
3280	2070	1840
3360	2060	1930
3360	2060	1970
3440	2050	2000
3480	2050	2040
3560	2040	2050
3640	2030	2060
3640	2020	2060
3760	2010	2050
3840	2000	2040
3880	2000	2040
3960	1990	2030
4000	1980	2020
4040	1980	2010
4120	1980	2000
4200	1970	1980
4240	1970	1960
4320	1970	1960
4320	1970	1930
4400	1980	1940
4440	1970	1920
4480	1970	1930
4560	1970	1930
4600	1970	1920
4640	1970	1930
4680	1960	1930
4760	1960	1910
4800	1940	1880
4840	1920	1880
4880	1890	1860
4960	1870	1850
5000	1870	1850
5080	1870	1840
5120	1860	1820
5200	1860	1820
5240	1860	1840
5280	1860	1820
5320	1860	1800
5400	1860	1790
5440	1860	1790
5480	1860	1780
5560	1870	1780
5640	1870	1790
5680	1880	1780
5720	1890	1780
5760	1900	1780
5800	1900	1770
5840	1910	1770
5920	1920	1760
5960	1920	1740
6000	1930	1740
6040	1930	1740
6080	1930	1740
6120	1940	1750
6160	1940	1740
6200	1940	1750
6240	1940	1760
6280	1950	1740
6320	1950	1740
6360	1950	1750
6400	1950	1750
6440	1960	1750
6480	1960	1750

[lswing]

Nice. Yes, export from Excel as webpage. Open webpage locally and copy content with cursor, then paste into a post on here. Clean up as much as you can in Excel before this. You'll hit the 50k character limit for posting on here.

Above 16-17psi the turbos get way hot, and past peak performance. Requesting high boost, say 19psi, causes the turbos to come on too quick too hard and fizzle out. The goal with this engine is max timing, and not hot turbo air. Get the timing and boost at that sweet spot and hold on! HP increases up the dyno chart just as the boost tapers around 4,500, lovely.

[LaserSVT]

Thank all of you for the lesson! This is great. I have many plans to eek the most I can out of mine and this is all very helpful.