APR ECU Upgrade MK6 Golf - Customer perspective

[thamwk]

thanks for those figures. no one can complain about the actual figures posted

very promising and definitely aiding in my decision process

[logger]

Trying to compare Top Speed

Did some more testing this morning. My aim was to find terminal velocity in each tune, however I couldn't quite get there as my test track is too short. At 2km with a 1.6km (1mile) straightaway I was still accelerating when I had to back off. I reckon you probably need about 3km to get it wound fully out.

Best I could get to was 215kph indicated or 203kph true with the Tune. Again using the DSG's "S" position and WOT. Measured with Vag-Com, so speed and data should be accurate.

Two runs over same length of track, one with Stock tune and one with APR Stage 1. Limited access to the track meant only a single run in each tune I am afraid. Basically I entered the straight away at ~ 110kph then pegging it to the floor. Here is a graph showing from 130kph upwards. Three vertical white lines, one on each graph are snapshot points, with corresponding data at the bottom.



Things to Note:

First snap is at common time stamp (24sec), speed (141kph) and revs (6000) so differences can be read from here on.
Eng % Loads differ markedly. Never above 150% in stock and up to 175% with the tune!
Never got into 6th gear in stock. Wasnt going quick enough.
Second snap shot point at 40secs is interesting. This is where APR Stage 1 tune reached Stock tunes eventual max speed in the test. A full 8 seconds earlier which is fairly telling. To put it another way, Stock took 24sec to go from 141kph to 192kph, APR stage 1 did it in 16 sec or in 2/3 of the time! 33% Quicker in this specific area!!
Third snap as where I ran out of test track and had to back off. This shows max speed reached for each tune. I really wish I had the extra KM to see max speed. OH well - Good fun none the less.

[thamwk]

awesome work logger!

[logger]

Glad you like it. The more info there is out there the better I reckon. It is also sorta fun checking it all out.

[soogs]

Logger, was ur test track Winton? If it is PM me next time you visit as I live ard the corner and wouldn't mind checking ur car out.

I notice you do not have sports pack on ur TSI. Do you find the body roll excessive? I thought it did but then again I felt the sports pack too firm and rather like the comfort of standard suspension.

[oileoi]

logger thank you for this information very valuable. I hope you get a chance to test the max speed soon.

[logger]

Logger, was ur test track Winton? If it is PM me next time you visit as I live ard the corner and wouldn't mind checking ur car out.

Unfortunately not. SE Vic.

I notice you do not have sports pack on ur TSI. Do you find the body roll excessive? I thought it did but then again I felt the sports pack too firm and rather like the comfort of standard suspension.

No, not at all. I find I can give it plenty of stick through the bends without too much roll. But I will clarify this by saying I am not an expert in these matters. When I considered the sports pack, I was put off by; the cost, the loss of ride comfort and a fear that there would be more tire noise with the lower profile rubber. I could not reconcile these negatives with the benefits. If I was 20 years younger I probably could.

logger thank you for this information very valuable. I hope you get a chance to test the max speed soon.

Considered, going back to the same track and being more daring, but on balance I think it would be a waste. Need more distance to wind this baby up.

[logger]

I see APR are doing a sale. Might be an opportune time for anyone who has been holding off on the stage 1 due price. An early Xmas present...

[GTom]

Results from the dyno day:

(Mine is a MkV 1.4)

[guliver_twist]

Results from the dyno day:

(Mine is a MkV 1.4)

Would be awesome if someone with a stock GTI posted results from the same dyno, to see how closely the tune gets you to GTI performance..

also has anyone tried any tunes other than apr for the 1.4tsi?...
not long ago I saw a bluefin superchips for the 1.4tsi on special for 800aud.
Cheers,

[logger]

Nice one GTom. Any chance you did a second run without the tune active to highlight the difference the remap makes? Seems sort of meaningless unless there is anything to compare it to.
I have little understanding of dynos, so a Question: This engine is supposed to be around 118KW stock (or maybe more for yours) and your report shows it only develops the same 118KW with the remap. On face value one would expect more. Is this because one is measured at the flywheel and the other at the wheels? If so is there a rule of thumb to convert the methods?

[erko]

Nice one GTom. Any chance you did a second run without the tune active to highlight the difference the remap makes? Seems sort of meaningless unless there is anything to compare it to.
I have little understanding of dynos, so a Question: This engine is supposed to be around 118KW stock (or maybe more for yours) and your report shows it only develops the same 118KW with the remap. On face value one would expect more. Is this because one is measured at the flywheel and the other at the wheels? If so is there a rule of thumb to convert the methods?

gday, yes before AND after are key.

manufacturers quote Brake Horsepower/Kilowatts at the engine. A significant amount of power is lost through the driveline.....this varies for every vehicle depending on drive type (FWD/RWD/AWD) , transmission type and other variables. This is why before / after is key.

[logger]

before AND after are key..

Thanks now I understand. Wonder if we can scrounge a stock standard MK5 twincharger dyno run from somewhere to use as a rough comparison. No doubt plenty of variables still, but better than nothing.

[erko]

yes, that would be ideal. on the same dyno / transmission / dyno mode and ideally similar ambient temperature..of course there is some variance individual vehicle to the other but its close enough

[GTom]

If I get a chance to do another run somewhere/time in the future I'll try getting both tunes run....

But next will possibly be some sort of Down Pipe and air intake....