Turbos Working Abit Hard

[wild willy]

Adjust the wastegate a little?

I'm gettin 2550 on about 4-5 time stamps on my logs.

Spot on, i was surprised to see that my duty cycle improved as i tweaked my actuator. What i think is happening is that by applying more load to the actuator you are doing some of the work of the n75. I'm not even convinced how accurately these turbo's are calibrated when they leave the factory.
You don't want to tighen it too much since you will be spiking past what that map is requesting.

 

[__B3NNY__]

Ill report back on this post as soon as i get back with what i got, Im going to log on the way down there and if the CF`s are ok im going to knock it up again as i need to stop once to meet up with Dan cupra R, Ill give the actuator a tweek on sunday and hopfuly get the duty down a little.

thanks for all the help.

The actuator is set at 12/13 threads as standard isnt it? What did you guys wind yours into to see your wastegate duty at a decent figure? just so i know roughly where to set mine before i log it.

David.

 

[-pseudonymous-]

yeah around 12-13 threads is standard although i don't think all actuator rods are the same length so probably best measuring from the actuator body to the top bolt with some digital vernier calipers.

 

[PhilW]

Logged mine today a little. 3rd gear pull i get 2050 @ about 5400rpm with a wastegate % around 62%.

0.8 is the highest i get on the timing pull on cylinder 2.

45 degrees on the intake temp at 20 degrees ambient on the last run.

Both on HB9 T9.

 

[__B3NNY__]

well i had a shite day today at the RR day, only pulled 197bhp /240lbsft which i wasnt to impressed with not sure what to do really? logs say the car is running pretty much spot on the guy that done the RR said the car was running fine maybe a little bit lean topend but nothing to worry about? i was expecting at least around 230bhp. I got 196bhp on a set of dyno dynamics when i just had a remap. Could it be that the turbo is working to hard thats why the figures where crap? Would the timing need cranking up a fair bit would that help? Im just totally puzzled as i was expecting good results from what the logs where saying. I know all about the dyno lottery but that takes the biscut!

David.

 

[PhilW]

Just to make you feel better, my logs on a RR day on a warm day end of april where i pulled 216bhp...

Group A:	'002				Group B:	'020				Group C:	'118			
	RPM	Load	Inj. On Time	Mass Flow		Idle Stabilization	Idle Stabilization	Idle Stabilization	Idle Stabilization		RPM	Temperature	Load	Absolute Pres.
TIME					TIME					TIME				
STAMP	 /min	%	 ms	 g/s	STAMP	 CF	 CF	 CF	 CF	STAMP	 /min	°C	%	 mbar
0	1320	86.5	9.02	23.39	0.5	0	0	0	0	1	1320	20	100	1200
1.56	1320	85.7	9.02	22	2.15	0	0	0	0	2.7	1560	21	100	1250
3.2	1680	96.2	10.25	31.56	3.7	0	0	0	0	4.2	1920	21	100	1390
4.7	2000	108.3	11.07	43.72	5.21	0	0	0	0	5.7	2240	21	100	1700
6.2	2400	151.1	16.81	72.14	6.7	0	0	0	0	7.21	2680	23	83.9	2390
7.7	2800	191.7	22.14	107.92	8.26	0	0	0	0	8.86	3040	24	80.4	2540
9.4	3200	191.7	23.78	120.78	9.9	0	0	0	0	10.42	3400	26	76.9	2540
10.9	3520	191.7	23.78	142.06	11.39	3	0	0	3	11.89	3680	27	71.4	2540
12.4	3800	191.7	23.78	150.08	12.89	3	0	3	3	13.41	4000	30	61.6	2530
13.89	4080	180.5	21.32	133.81	14.41	3	0	3	2.3	14.91	4240	30	57.3	2190
15.5	4320	169.2	20.09	141.31	16.06	2.3	0	2.3	2.3	16.6	4560	32	57.3	2160
17.1	4680	170.7	20.5	152.86	17.59	2.3	0	2.3	2.3	18.1	4880	33	58.8	2130
18.6	5000	169.2	20.5	157.14	19.1	1.5	0	2.3	1.5	19.6	5200	35	60.8	2060
20.1	5280	166.9	20.09	169.25	20.61	3.8	0	1.5	1.5	21.1	5480	37	61.6	2030
21.61	5560	159.4	19.27	169.56	22.2	3.8	0	1.5	0.8	22.77	5760	39	63.5	1970
23.3	5880	155.6	19.27	175.19	23.8	3.8	0	0.8	0.8	24.3	6080	41	66.3	1910
24.82	6160	152.6	18.45	179.5	25.3	3	0	0.8	0.8	25.8	6320	43	69.4	1880
26.3	6440	147.4	17.63	181.39	26.8	3	0	0.8	0	27.3	6640	45	71.8	1860
27.8	6720	144.4	17.22	182.97	28.31	2.3	0	0	3	28.82	6880	47	75.3	1830
29.41	6960	137.6	16.4	183.75	29.97	2.3	0	5.3	3	30.52	7080	48	0	1690
31	6200	7.5	1.23	7	31.51	0	0	0	0	32	4480	39	0	1090

183g/s... and i got 216bhp. You do the math. lol

 

[__B3NNY__]

I looked at that before i got to the end of the page and was a little puzzled lol, I think im just going to get her serviced adjust the wastegate and crank the timing up and log her and make sure everythings how it should be, then try another RR thats close to me and try and get it done in the morning when its abit cooler and go from there, before i decided if its a case of getting a custom map. I think looking at my logs the car is running pretty well and should have a achived better results than that. but like you say dyno lottery. I managed to stick to a S4 on the way there so she cant be missing alot?

 

[m0rk]

I think you've summed it up there... according to the MAF the turbo is running 'maxed' out airflow wise, so what would a 'custom' (and use this term very loosely) actually offer.

DD rollers are always running lower results than expected (see remapped LCR's) 240 odd bhp - that's just not the case.

As you pointed out - you were with an S4, and they're not slow.

 

[PhilW]

I personally think i could get more out of the turbo tho m0rk, HB9 T9 settings now, zero timing pull and ~65-70% wg duty at pretty much redline. Not sure how you would tho.

Its certainly shifting the air tho.


I woulnt worry about it tho mate, logs look good an you seem happy with it. Take it with a pinch of salt.

 

[__B3NNY__]

What would your next plan of action be if you were me? Leave it as it could have just been the Rollers? Or get it looked at? I know people go on about figures mean nothing but after spending all that money i would like to see some decent figures from it.


thats what i said today take it with a pinch of salt, its just abit dis hearting when the logs looked well and then that load of tosh comes up lol, Would adjusting the the wastegate and timing help any?

Im going to be honest and added a little bit of octane booster that a chap from the tuning garage gave me when i was there could this have caused any power loss?

 

[PhilW]

Have you got any logs when it was on the rollers?

 

[Pabs]

What would your next plan of action be if you were me? Leave it as it could have just been the Rollers? Or get it looked at? I know people go on about figures mean nothing but after spending all that money i would like to see some decent figures from it.

Im going to be honest and added a little bit of octane booster that a chap from the tuning garage gave me when i was there could this have caused any power loss?

Hi mate, if you're really worried about the actual figures, I'd suggest you take your car along to an RR day with other cars of similar spec that have the proven results you desire. Then, if your results increase, you can blame it on dyno lottery. If your results are still low in comparision with the others, you know something must be wrong.

I've been doing the same with my car - I've got someone with a similar/identical spec'd car and we've run on same/day/time/RR a couple of times now - with near identical (+/- 4bhp) results every time

Incidentally, who gave you the octane booster?

 

[Dan Cupra R]

Dave like I said earlier when we were driving down to JKM chasing the audi

Once I got into 4th, foot flat down, you and the audi were pulling away from me easily and it makes sense with the mods you have that yours pulls away.

I know its a shitter when u dont get what u expected but if your car feels better than before then thats a good thing?

I think having ours rr'd at storm that time got us expecting good figures. It wasnt just you down either, all the mk'3s were low, even hooch's wasnt 100%.

Do you still have that vagcom error code for my car? I need to translate what it means, lol

 

[m0rk]

unless it's a happy maf over-reading......?

 

[__B3NNY__]

No logs on the rollers phil as i wasnt sure if they would let us in the cell once the car was running.

that sounds like abit of a plan pabs just have to keep a eye out for the RR days and what cars are going.

ill try and find that code dan, im not at home at the moment so dont have my lappy with me, Ill take a look in the vag-com section and see if i can recognise it, Like you said i stuck to the audi like glue so maybe it should be taken with a pinch of salt?

I dont reckon the maf is over reading? Unless it has just started since the fitting of the k03s as when we have loged before its been sat at around 158g/s which is about normal for the power that showed last time?

 

[__B3NNY__]

Managed to get out today and adjust and log the wastegate, i think ive got it about as good as it will get. I maanaged to get it down alittle bit more but the boost seems to be spiking quite high (~23/24psi) and gave a small judder when my foot was planted so i adjusted the other way just to be safe. Im pretty happy with these results now as ive managed to get it down by about 15% but wouldnt mind a second opinion just to make sure as im still not 100% on all this vag-com stuff.

,Group A:,'118,,,,Group B:, Not Running,,,,Group C:, Not Running
,,RPM,Temperature,Load,Absolute Pres.,,,,,,,,,,
,TIME,,,,,TIME,,,,,TIME,,,,
MARKER,STAMP, /min,°C,%, mbar,STAMP,,,,,STAMP,,,,
,0.00,3520,39.0,85.1,2310,,,,,,,,,,
,0.42,3920,39.0,83.1,2410,,,,,,,,,,
,0.80,4320,39.0,83.1,2340,,,,,,,,,,
,46.78,2640,42.0,100.0,1180,,,,,,,,,,
,47.18,2680,40.0,100.0,1510,,,,,,,,,,
,47.58,2800,39.0,100.0,1830,,,,,,,,,,
,47.98,2880,39.0,88.2,2150,,,,,,,,,,
,48.38,2960,38.0,85.5,2420,,,,,,,,,,
,48.78,3040,37.0,82.7,2520,,,,,,,,,,
,49.18,3200,37.0,82.0,2540,,,,,,,,,,
,49.58,3240,37.0,81.6,2530,,,,,,,,,,
,49.98,3360,37.0,81.6,2470,,,,,,,,,,
,50.38,3440,37.0,81.2,2440,,,,,,,,,,
,50.78,3520,37.0,80.8,2440,,,,,,,,,,
,51.18,3640,37.0,80.4,2410,,,,,,,,,,
,51.59,3720,37.0,80.0,2380,,,,,,,,,,
,52.09,3840,38.0,79.6,2340,,,,,,,,,,
,52.49,3960,39.0,79.2,2320,,,,,,,,,,
,52.89,4040,39.0,78.8,2290,,,,,,,,,,
,53.29,4120,39.0,78.8,2270,,,,,,,,,,
,53.69,4200,39.0,78.0,2270,,,,,,,,,,
,54.09,4280,39.0,77.6,2270,,,,,,,,,,
,54.47,4360,39.0,77.3,2240,,,,,,,,,,
,54.89,4440,40.0,76.9,2220,,,,,,,,,,
,55.38,4560,41.0,76.5,2210,,,,,,,,,,
,55.78,4640,42.0,76.5,2160,,,,,,,,,,
,56.18,4720,42.0,76.5,2150,,,,,,,,,,
,56.58,4800,42.0,76.5,2150,,,,,,,,,,
,57.10,4840,43.0,76.5,2130,,,,,,,,,,
,57.50,4920,44.0,76.5,2120,,,,,,,,,,
,57.90,4960,44.0,76.5,2110,,,,,,,,,,
,58.30,5040,45.0,76.9,2100,,,,,,,,,,
,58.70,5120,45.0,76.9,2080,,,,,,,,,,
,59.10,5160,45.0,76.9,2090,,,,,,,,,,
,59.50,5240,45.0,77.3,2080,,,,,,,,,,
,59.88,5320,46.0,77.3,2070,,,,,,,,,,
,60.28,5320,47.0,77.3,2080,,,,,,,,,,
,60.68,5400,47.0,77.3,2070,,,,,,,,,,
,61.08,5480,48.0,76.9,2050,,,,,,,,,,
,61.48,5520,48.0,76.9,2030,,,,,,,,,,
,61.88,5560,48.0,76.9,2020,,,,,,,,,,
,62.28,5600,49.0,76.9,2020,,,,,,,,,,
,62.68,5640,49.0,76.9,2010,,,,,,,,,,
,63.08,5680,50.0,76.9,2000,,,,,,,,,,
,63.48,5720,50.0,77.3,1980,,,,,,,,,,
,63.88,5800,50.0,77.3,1990,,,,,,,,,,
,64.28,5840,51.0,77.6,1980,,,,,,,,,,
,64.68,5880,51.0,78.0,1980,,,,,,,,,,
,65.08,5920,51.0,78.0,1970,,,,,,,,,,
,65.48,5920,51.0,78.4,1980,,,,,,,,,,
,65.88,5960,52.0,78.4,1960,,,,,,,,,,
,66.28,6000,52.0,78.8,1940,,,,,,,,,,
,66.68,6080,53.0,79.2,1950,,,,,,,,,,
,67.19,6240,51.0,0.0,1490,,,,,,,,,,

Just to add this was done in 4th gear.

 

[m0rk]

that's looking a bit better

that's the problem with a 2nd hand turbo, you never know if someone's adjusted it before you.

does it go any differently?

 

[__B3NNY__]

It certinatly seems to boost alot better abit hard to describe, seems to coming in quicker and harder if that makes sense. Does it looks safe to leave there? Like i said it was wound in a little more but the boost was spiking at around 24psi on the gauge and thought that was a little dangerous?

 

[m0rk]

yeah, too much positive deviation will see you in limp mode

 

[__B3NNY__]

Cool, thats one thing out of the way now. Thanks alot for all the comments and help.

Thanks for the logs and advice phil, Top man