2.0 TDI Sportline - Dyno Results

[mikinoz]

Last Friday, I joined some ClubMINI people down in Menai for a Dyno night.

The turn out was great and the vibe was excellent - and I was joined by Floody and Ian representing VW!

So the results were interesting and I will post them up here and the speculation can begin. First data is from VW and then the results.

[Spoddy]

Hi Mikinoz,

I'm quite uneducated on these things... can you please explain to me what the 1st and then the 2nd charts represent and what they tell you?

Thanks,

[ope126]

Soooooo, you have the same amount of power at the wheels as you do at the flywheel!? Interesting...

Let it begin...

The great Dyno Debate 08'...

[Jarred]

Soooooo, you have the same amount of power at the wheels as you do at the flywheel!? Interesting...

yea you wouldn't think aye???

actually, I think they have "smart" dynos these days, when you back off the gas, it (somehow) calculates the resistance in the drivdetrain as the tyres slow back down, and that changes that into a powertrain kW loss and does what ever it does to give the kW atFly, anyways, I think it goes something like that...

can anyone confirm??

[Mischa]

yea you wouldn't think aye???

actually, I think they have "smart" dynos these days, when you back off the gas, it (somehow) calculates the resistance in the drivdetrain as the tyres slow back down, and that changes that into a powertrain kW loss and does what ever it does to give the kW atFly, anyways, I think it goes something like that...

can anyone confirm??

i heard that on topgear but we all kn ow how accurate they are on technical things i think some dyno's just stick a 15% extra on to accoutn for drivetrain loss? and others just give a true as possible wheel reading. again someone plz clarify lol.

mik do you know if it was an accurate one or not?

[mikinoz]

I doubt that this was accurate, it will never be 103 at the wheels.

Need to find another dyno from another maker to compare.

All the same it was a good result!

[OilBurna]

its all a question of the operator, I beleive they can adjust the resistance so to speak in "shootout mode" so you can effectively dial up the numbers you want. Also depends on calibration as well.

I have actually been to visit the factory in melbourne interesting place also make dynos for motorbikes, planes and boats

[Mister_duck]

A standard 2.0 Tdi has approx 90 kw atw

[dionysiac]

This site has extensive dyno tests
although Passat i reckon results would be similar for the Golf

http://www.rri.se/popup/performancegraphs.php?ChartsID=762

[gldgti]

the age old dyno debate..... yuk

debate is pointless. what you need is to KNOW exactly what adjustments, if any, were made.... so if this discussion is really going anywhere, someone who was there could always call the place and ask the operator...

[mikinoz]

Where is the fun in that?

I will head back there after I install a modified air intake and see if there is a gain or a loss!

[mikinoz]

Found this today under the marketing for Powerchips - seems my car is very special!

[Greg Roles]

Mate the kw is great, but yeah hard to compare dyno to dyno with all the variables. What IS interesting is the torque figure, as my recenlty dyno'd GT TDI stock put out 113kw and 356nm.

Seems your grunt is towards that same figure, which is where it's at with the oilers! Congrats all round mate!

[dimsim]

My stock 2L 103kw had 97.6 atw

[mikinoz]

I think that the dyno I was on was generous.

Needing to head back to the same dyno for a run with the mods I have done. It is a LONG way from my place though in Menai!