Tigger73's 125TSI Tiguan Build Thread

[tigger73]

Todays dyno results:

[AdamD]

I'm still puzzled as to why they don't put the DQ500 DSG into the new GTI or at least the R. Unless it's cost related. I thought it might be a little bigger and not fit, but the TTRS and RS3 blew that argument out the window.

My guess is it's deemed overkill (or, rather, overly expensive), as neither the GTI nor the R require it from a torque perspective.

[Wynnston]

I'm still puzzled as to why they don't put the DQ500 DSG into the new GTI or at least the R. Unless it's cost related. I thought it might be a little bigger and not fit, but the TTRS and RS3 blew that argument out the window.

[Guy_H]

...but then on the positive side we hopefully won't destroy our gearbox either.

On that front I'm interested to find out what modifications you've made to the DQ500 DSG in your Stage 3 Tig (if any). And at what point you'd recommend upgrading the internals.


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I agree - the clutches are so much bigger - its an awesome upgrade from the poor little DQ 250. Our Tiguan, The K04 Tiguans & TTRS's are all holding up really well - all with stock clutches & our DSG software.

[team_v]

From our own dyno measuring in house here (where we are doing our best to measure Engine power - not wheel), the DQ500 transmission pulls another 8 - 10% out of the motor by the time it gets to the front hubs when directly compared to the DQ 250 in the Golf GTI & Golf R.

So mod per mod - at the wheels or hubs, you will never hit the same as the small gearbox brothers.

That is interesting to know.
I have heard 20% loss or so for the 4motion system.

Still, i would rather the DQ500 than the DQ200/250.

[tigger73]

From our own dyno measuring in house here (where we are doing our best to measure Engine power - not wheel), the DQ500 transmission pulls another 8 - 10% out of the motor by the time it gets to the front hubs when directly compared to the DQ 250 in the Golf GTI & Golf R.

So mod per mod - at the wheels or hubs, you will never hit the same as the small gearbox brothers.

...but then on the positive side we hopefully won't destroy our gearbox either.

On that front I'm interested to find out what modifications you've made to the DQ500 DSG in your Stage 3 Tig (if any). And at what point you'd recommend upgrading the internals.


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[Guy_H]

From our own dyno measuring in house here (where we are doing our best to measure Engine power - not wheel), the DQ500 transmission pulls another 8 - 10% out of the motor by the time it gets to the front hubs when directly compared to the DQ 250 in the Golf GTI & Golf R.

So mod per mod - at the wheels or hubs, you will never hit the same as the small gearbox brothers.

[brad]

, or are manufacturers figures (& tuners) actually measured with some sort of dynamometer attached the engine?

manufacturers quote power "at the flywheel" measured directly using an engine dynomometer not a rolling road. Conversion from kwATW to kwATF or vice-versa is at best an educated guess due to all the variables between flywheel & tyres (including tyre size & pressure). Then the variables between dynomometer setup, operator, brand, weather conditions, etc.

[tigger73]

Definitely interested to hear the results of the dyno day.
Is it an AWD capable dyno?

Yes it's an AWD dyno so no disengaging the tailshaft/rear diff. Good thing is it's the same dyno I've been running on so hopefully I can get some good comparative data from previous runs as long as the ambient conditions are going to be similar.

When it comes to measuring power/torque, is there a factor that converts from crank to wheels & vice versa, or are manufacturers figures (& tuners) actually measured with some sort of dynamometer attached the engine?

They connect up to the OBD port under the dash and take the engine RPM and other engine parameters from there. The figures that you get are a kwaw figure (calculated from the dyno rollers) and not a crank figure. You have to take off the drive-line losses to work out what the crank figure would be.

Unfortunately I don't have a "stock" dyno result so I'm not sure what the % driveline loss is for the Tig. Though I know that the actual engine output is likely higher than the "advertised" 125kW.

My previous dyno figures were a little disappointing when you compare it to other cars of similar power output. However now that I have the S3 intercooler installed I think it should be back to where I'd expected it to be. Not that the intercooler makes any power in itself but I'm convinced the old stock one was sapping power.

[MGV]

Be interesting to find out what the car is putting out now with the new S3 intercooler installed. I'm guessing it'll be in the 150-160kwaw area.

When it comes to measuring power/torque, is there a factor that converts from crank to wheels & vice versa, or are manufacturers figures (& tuners) actually measured with some sort of dynamometer attached the engine?

[team_v]

Definitely interested to hear the results of the dyno day.
Is it an AWD capable dyno?

[tigger73]

Car is getting serviced on Friday ready for the dyno day on Saturday: SA Dyno Day II - 8am Saturday 24th May

Be interesting to find out what the car is putting out now with the new S3 intercooler installed. I'm guessing it'll be in the 150-160kwaw area.

[tigger73]

That look is awesome, screw the mudflaps

Yes it's a bit of fun getting it dirty but has taken 3 washes to get it mostly clean again. Still have dirt coming out from behind the number plate and from around the tail lights.




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[Wynnston]

That look is awesome, screw the mudflaps

[tigger73]

Tigger73's VW Tiguan 125 TSI Build Thread

Tig got a little dirty today....

...I think my next purchase will be a set of mudflaps. Though they would have to be pretty serious mudflaps to stop this lot


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