ECU flash

[HugoPan123]

As mentioned by about 5 people in this thread - you will need to have the car retuned to suit the intake and downpipe. The tuner will adjust timing, increase turbo boost etc etc to suit the mods.

Thanks for reply.
I understand that.
So I went to the tuner this morning, and they did the dyno runs and told me that they can't do anything. They said their tune is making the maximum power on my car. The tuner is horsepower factory in Dandenong south.
But I thought I changed the hardware, at least the number should be increased a little?


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[h100vw]

Thanks for reply.
I understand that.
So I went to the tuner this morning, and they did the dyno runs and told me that they can't do anything. They said their tune is making the maximum power on my car. The tuner is horsepower factory in Dandenong south.
But I thought I changed the hardware, at least the number should be increased a little?


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Too many tears follow dyno runs....

What do the 2 curves look like, there should be more mid range on the Stage 2. Peak power could easily be the same.

Does it feel different to drive?

Gavin

[HugoPan123]

ECU flash

Too many tears follow dyno runs....

What do the 2 curves look like, there should be more mid range on the Stage 2. Peak power could easily be the same.

Does it feel different to drive?

Gavin

Hi Gavin
Here's the figures.
I don't see the difference because I can't read it....
I felt it is slower than before. Maybe I expected the increase too much.
It is just weird.
What should I do now?
The first pic is after stage 1 tune.
The second one is the run this morning.




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[Martin]

So I went to the tuner this morning, and they did the dyno runs and told me that they can't do anything. They said their tune is making the maximum power on my car. The tuner is horsepower factory in Dandenong south.
But I thought I changed the hardware, at least the number should be increased a little?

APR stage II does produce more power and torque than stage I
From a drivers point of view the improvement feels much greater than the difference between the Stage I & II figures

APR Stage I


APR Stage II

[h100vw]

Hi Gavin
Here's the figures.
I don't see the difference because I can't read it....
I felt it is slower than before. Maybe I expected the increase too much.
It is just weird.
What should I do now?
The first pic is after stage 1 tune.
The second one is the run this morning.




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The same scales on the graphs would have been nice.........

If you look closely, I reckon there's a slight improvement in the mid range. In that the graph is a touch steeper, it's not massive though.

As Martin states from the driving seat the improvement feels better than the dyno would indicate. Could be that they are being conservative/safe.

I'd be interested to see the logs from a few VCDS runs.

Gavin

[Lucas_R]

160 odd kw is pretty good for a Mk5 GTI

[HugoPan123]

160 odd kw is pretty good for a Mk5 GTI

It's a mk6 tho.



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[Lucas_R]

It's a mk6 tho.

My bad. Still good for a MK6. My Mk6 GTI makes 161.6kw (just looked up my dyno graph from last year) and that's stage 2 tune from DNA Tuning, Eurojet 3" downpipe and Unitronic intake. See graph below.

Anywhere between 160-165kw at the wheels for a Mk5/Mk6 GTI is about all you will get with the stock turbo. When i took my car to the dyno, the dyno operator asked me what i thought the car would make - and i said between 160-165kw providing everything is healthy because i knew this was a realistic figure.

Have a flick through this dyno thread which has a lot of Mk5 and Mk6 GTI's in it. The Official VWGolf.Net Dyno Power Chart

Looking at your stage 1 vs stage 2, it appears you have picked up about 5-10kw through the mid-range along with some more torque. Your torque now peaks higher, but then drops off more than before which is why perhaps the car "feels" a little slower.

[Lucas_R]

I just printed out both of your power runs, and did my best to overlay the results for you. Unfortunately a different scale was used on each graph, so ive done my best.

You can see you have lost 5-10kw down low (say below 2,500rpm), but then you have gained 5-10kw from about 3,000rpm - 5,500rpm. Above 5,500rpm there's no difference between stage 1 and stage 2 because the turbo is maxed out.

You have gained a decent chunk of torque from around 2,200rpm right through the rest of the rpm range.

[h100vw]

I just printed out both of your power runs, and did my best to overlay the results for you. Unfortunately a different scale was used on each graph, so ive done my best.

You can see you have lost 5-10kw down low (say below 2,500rpm), but then you have gained 5-10kw from about 3,000rpm - 5,500rpm. Above 5,500rpm there's no difference between stage 1 and stage 2 because the turbo is maxed out.

You have gained a decent chunk of torque from around 2,200rpm right through the rest of the rpm range.

Perfect Lucas, just what I wanted to get across. Not sure it should lose any at the bottom end but on the whole the car seems to be right in the ball park.

Peak numbers don't tell the whole story is today's lesson I think.

[HugoPan123]

I just printed out both of your power runs, and did my best to overlay the results for you. Unfortunately a different scale was used on each graph, so ive done my best.

You can see you have lost 5-10kw down low (say below 2,500rpm), but then you have gained 5-10kw from about 3,000rpm - 5,500rpm. Above 5,500rpm there's no difference between stage 1 and stage 2 because the turbo is maxed out.

You have gained a decent chunk of torque from around 2,200rpm right through the rest of the rpm range.

Thanks Lucas.
I just went to an APR dealer, and we discussed my tune.
I can't really understand what he said, but sure he said that my tuner cannot give me stage 2 tune.
The tune I got from HPF, actually made my car shift not smoothly than stock, and had delay on 2-4 gear @2-3k rpm after he tested drive. That I was worried about that is a problem with my gearbox for months.
Then I got a really good deal with him, and I got ecu updated straight to stage 2.
Now the car is smooth af!
I'm going to do a dyno run next week and upload the graph.
Thank you guys. I should have went to the better one before.
The sticker is MAAAAAD!



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