Tigger73's 125TSI Tiguan Build Thread

[tigger73]

Yes, looks great, Damien! Just after some scientific explanations... (again probably related to flywheel vs wheels quoted figures):

The losses through the drivetrain make sense & the gains from stock to tuned have been well documented here. The rather large increase in torque - stock to stage 1 (APR quoted) is something like 280Nm up to 400Nm.

I guess my main question is, is that max torque figure of 699Nm based on something other than the above figures?

Yes a few people have been asking the same question. Unfortunately the main dyno operator was away for the weekend and the figures we got for torque are uncorrected numbers. Usually people quote "derived torque" which is where the issue lies.

I'll talk to the workshop next week and see what the conversion factor is from one to the other.

Also to note is that the above dyno graph was done in 3rd gear. The 4th gear run produced 140.9kW and 483Nm which in terms of comparison of peak power is probably better. The 4th gear curve that I have is a bit "lumpy" as the operator had a couple of "false starts" as he couldn't put his foot flat until 4,000RPM without the DSG kicking down (even in manual mode). So I think he was a little overly cautious up until that point on this particular run which has resulted in a dip on the power and torque curve.




Peak torque (uncorrected) was obviously missed as it would be somewhere in the dip.

I'm only posting this result to give people an idea on some of the difficulties in getting a good run. The peak power figure is about right, however you can clearly see that the operator has backed off the accelerator to avoid kicking down but has probably backed off too far in this occasion leading to a lumpy curve.

[MGV]

With comparing apples to apples, i would probably expect to see a value around the 420Nm mark. But in saying that, i don't really have a clue!

[team_v]

So you have the DSG tune on this beasty and it still kicked down to 3rd under hard acceleration in manual mode?

[tigger73]

So you have the DSG tune on this beasty and it still kicked down to 3rd under hard acceleration in manual mode?

Yes. I'll have to check whether it's an optional feature but I only have he basic DSG tune without any add-ons.

Running on the dyno is about the only time I would use the feature so probably not something to pay extra for. But yes it caused the dyno operator a couple of false starts as it kicked down causing him to abort the run.

Hence the reason why the operator was a little overly cautious on this run to make sure he got a clean run... But then by backing off the throttle a bit it stuffed up the results anyway.


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[AdamD]

Given that you've dynoed several times now, and considering the number of mods you've made and the focus on the numbers, I'd certainly be handing over a hundred bucks or so for the feature if I was you Damien.

[tigger73]

Given that you've dynoed several times now, and considering the number of mods you've made and the focus on the numbers, I'd certainly be handing over a hundred bucks or so for the feature if I was you Damien.

Yes Adam I probably should have ticked the box when I got the DSG tune. I didn't know it was going to cause so many issues

I'm still a little puzzled at the results though as I was expecting a bit more given the improvement in the 0-100 time. I'll just put it down to dyno recalibration and be happy with the relative results. Level pegging with a stock Golf R is not bad. Plus I'd have much better low end response.

I'm not planning any major changes from now on - a couple of minor tweaks and that's it!


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[AdamD]

I'm still a little puzzled at the results though as I was expecting a bit more given the improvement in the 0-100 time. I'll just put it down to dyno recalibration and be happy with the relative results. Level pegging with a stock Golf R is not bad. Plus I'd have much better low end response.

I don't think the numbers tell the full story here. Haven driven stock Rs and your Tig, I reckon yours is way ahead in general responsiveness and driveability. An R might be a 10th or 2 quicker to 100 if doing a launch control start (I've seen 5.3 quoted often for a stock R DSG), but under any other conditions you'll be ahead. And you're driving a Tig - the ultimate sleeper.

[tigger73]

I don't think the numbers tell the full story here. Haven driven stock Rs and your Tig, I reckon yours is way ahead in general responsiveness and driveability. An R might be a 10th or 2 quicker to 100 if doing a launch control start (I've seen 5.3 quoted often for a stock R DSG), but under any other conditions you'll be ahead. And you're driving a Tig - the ultimate sleeper.

Thanks Adam - interested to see what effect a non-pancake turbo outlet pipe makes in terms of turbo spool/low end response. And talking about sleepers maybe I should put my stock cat-back back on....

On a related note I heard a brand new Mk7 Golf R today and it sounded awesome - even under light throttle.

[Guy_H]

No full manual mode for the DQ500 unfortunately, also save your cash on the pancake pipe, it won't spool any faster, just makes your wallet more empty.

[gazzmo]

So there is still a weight saving to be had then Guy

[tigger73]

New tyres going on tomorrow

[Tiggy1]

What sort?
(And no smart comments about "round ones") :p

[tigger73]

Tigger73's VW Tiguan 125 TSI Build Thread

What sort?
(And no smart comments about "round ones") :p

Goodyear F1 Assymetric 2's in 245/40R19. Can't remember the load/speed rating - possibly 98Y but it's more than what's min. spec.

I'm dropping a profile size this time. Previously was running 245/45R19 but decided to see how these go as they are a common "Commodore" size.

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[team_v]

Goodyear F1 Assymetric 2's in 245/40R19. Can't remember the load/speed rating - possibly 98Y but it's more than what's min. spec.

I'm dropping a profile size this time. Previously was running 245/45R19 but decided to see how these go as they are a common "Commodore" size.

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Speedo will read slightly slower than the 245/45's now due to a smaller sidewall.
Just so you are aware.

Still for the price those 245/40's were a steal!

[tigger73]

Tigger73's VW Tiguan 125 TSI Build Thread

Speedo will read slightly slower than the 245/45's now due to a smaller sidewall.
Just so you are aware.

Still for the price those 245/40's were a steal!

Yes I'm aware that the speedo will be slower with the 245/40's. The 245/45's are slightly too big and so actual speed was slightly faster than stock standard. I'm hoping that my speedo will read correctly now with slightly smaller tyres on.

The "correct" size is 255/40R19 but that assumes you're running the 19x9 Savannahs. As my rims are only 19x8 I wouldn't put the 255's on which leaves me with option of either 245/45 or 245/40. So now I will have tried both

I'll be interested to see if it has any noticeable effect on the 0-100 time....

And couldn't go past them for the price either!


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