Why is my Duty going 100% at 5k

[Daz_gibbo]

Running KO3s with Revo Stage 2 Setting for the log below HB7 T7.
Wastegate is slammed shut to acheive requested at high RPM.. why?
Even if the KO3s can't acheive the requested at higher RPM shouldn't the software only allow 95% duty?

Only comparison I have is Martyn who only sees 70% at high RPM but he has the large bore manifold too.

Group A:	'118				Group B:	'115			
	RPM	Temperature	Load	Absolute Pres.		RPM	Load	Absolute Pres.	Absolute Pres.
TIME					TIME				
STAMP	 /min	°C	%	 mbar	STAMP	 /min	%	 mbar	 mbar
0.73	2000	33	63.1	980	0.33	1920	12.8	990	1010
1.33	2040	32	100	1150	1.03	2000	69.2	1730	1030
1.93	2160	31	100	1410	1.63	2080	88	2070	1270
2.53	2320	30	100	1730	2.23	2240	109	2100	1560
3.13	2520	29	94.5	2070	2.83	2400	133.1	2150	1900
3.73	2720	29	88.2	2270	3.43	2640	150.4	2170	2180
4.33	2960	29	85.1	2370	4.03	2840	158.6	2180	2320
4.93	3200	29	83.1	2460	4.63	3040	169.2	2190	2420
5.63	3440	29	82.4	2480	5.33	3320	175.2	2190	2480
6.23	3640	30	82	2420	5.94	3560	172.2	2200	2460
6.93	3920	30	81.2	2370	6.54	3760	169.9	2200	2410
7.53	4120	31	80	2320	7.24	4040	167.7	2190	2330
8.14	4320	32	79.6	2230	7.83	4240	162.4	2180	2280
8.74	4520	32	78.8	2170	8.43	4400	159.4	2160	2200
9.34	4680	33	78.4	2110	9.04	4600	157.1	2140	2140
9.94	4840	33	78.8	2070	9.64	4760	154.1	2130	2090
10.54	5000	34	79.2	2050	10.24	4920	151.1	2110	2070
11.23	5160	35	80.4	2010	10.84	5080	148.1	2090	2030
11.84	5280	36	100	1980	11.54	5240	144.4	2070	1990
12.44	5440	36	100	1960	12.13	5360	141.4	2060	1970
13.13	5560	37	100	1920	12.83	5480	137.6	2040	1940
13.73	5680	37	100	1890	13.43	5600	134.6	2010	1900
14.33	5760	37	100	1860	14.03	5720	132.3	1990	1880
14.93	5840	38	100	1820	14.63	5800	130.1	1980	1840
15.53	5960	39	100	1800	15.23	5920	128.6	1970	1810
16.13	6040	39	100	1790	15.83	6000	127.1	1960	1790
16.73	6120	39	100	1770	16.43	6080	125.6	1940	1780
17.33	6200	39	100	1760	17.03	6160	124.8	1930	1770

 

[m0rk]

wastegate undone too much?

 

[Jonzy]

Last time I saw figures like that mate was when my n75 died.

 

[Daz_gibbo]

Same with J and F type. That above is with the F. Swapped them over today.

 

[Daz_gibbo]

Mork why would that make a difference? It's still asking it too go 100% whatever position it is in?
It's getting on my tit now, at this rate the turbo isn't going to last long.

 

[Copra]

software problem? ie, not custom enough to the turbo's flow? duno, jus an idea

 

[Martyn]

I have the same software though bud...

 

[mulletman]

my car was hitting 100% when it was heat soaking, dont know if thats relivant?

 

[Daz_gibbo]

hope not with a forge FMIC. As you can see temps are never above 40

 

[CupraSteve]

a leak somewhere? might be trying to peg the wastegate shut to build boost?

 

[wild willy]

Are you and martyn seeing the same g/s reading on the maff at these rpm's, if your maff readings are down duty cycle may increase to compensate to make more power till your expected maff readings are met. The maff is one of the main load sensors.

 

[Martyn]

My MAF peaks at 178g/s dependant on the outside temp. Usually sits around mid 160s to low 170s.. Not sure what Daz's does though.

I'd of though a low MAF reading would have dropped the requested rather than the delivered though.

 

[Daz_gibbo]

MAF figures are slightly lower. As said leaks are a no go as boost is easily met and above at anything below 5k and wastegate is 75-80%.
New filter needed really then I'll relog.

 

[-pseudonymous-]

Sorry to bring up an old post, but did you ever find out where the problem is Daz?

 

[Daz_gibbo]

MAF values have always been and are still ~160g/s the problem did clear itself in the end and I didn't really change anything. I will relog in the week as I havent done so in a while.