Mk6 Golf Acceleration & Performance Data

**Ideo** · 27-02-2011, 06:18 PM

Originally Posted by wooduck

For what it is worth I'll be there.

Wooduck

Me too. Nice to get a baseline for the future.

**VW Central** · 27-02-2011, 06:46 PM

Originally Posted by Fab_R

Thanks Dean.

I will come also. Looking forward to it.

Done

Will see you there!

**REXman** · 28-02-2011, 04:24 AM

Originally Posted by Sammy125TDi

With a hub dyno (dynopac), the cars wheels are removed and the hub itself is bolted to the car. This removes any 'gear effect' of the tyre/wheel. Its a reading that is closer to the flywheel output due to removing alot of the drivetrain loss.

A chassis dyno (dyno dynamics/mainline) is where the car is strapped to a rolling road and gives a true reading of the power delivered to the road itself. Typical drivetrain loss for FWD is 20%+, RWD 25%+ and AWD 20-30% depending on the technology.

+1

Originally Posted by schoona

You haven't actualy hit the final drive reduction when using a hub dyno, compared to a rolling one.
There is still mechanical forces involved with wheels/tyres, as well as tyre pressures having an influence.

In any case, you don't roll on the street on your hubs do you, you roll with wheels

+1

To add to this discussion further (I have already explained the differences a while back now in another topic/page/thread - cant remember), the figures you get off a HUB dyno are waaaaaay over what they would be compared with a proper roller dyno, such as a DYNO DYNAMICS, DYNO. In fact you cant compare them as suggested.

A comparison:

A third generation WRX (2009+), {not even an STI - although they share the same turbo/motor}, will get around 150KWs at the wheels on a roller DYNO.

ECUTEK, advertise (another one of the email-a-tune tunes)that their tune will give 200-210KWs at the HUBS.

In reality, a standard WRX with an ECUtek tune will pop out around 160-175KWs at the wheels on a proper dyno.

If you managed to get 206 at the HUBS.. you have about 170 "old school/real world" kilowatts.

**Fab_R** · 28-02-2011, 04:37 AM

Originally Posted by REXman

If you managed to get 206 at the HUBS.. you have about 170 "old school/real world" kilowatts.

Well explained.
Wow thats a pretty serious difference...you'd have to wonder why they are still being used these days when they are giving these sort figures compared to roller dyno's.

**VW Central** · 28-02-2011, 08:24 AM

Originally Posted by Fab_R

Well explained.
Wow thats a pretty serious difference...you'd have to wonder why they are still being used these days when they are giving these sort figures compared to roller dyno's.

Yup, exactly why I said originally don't bother posting them. Kinda like Gtech results

hahaha

**Fab_R** · 28-02-2011, 08:32 AM

Originally Posted by DeanCorp

Yup, exactly why I said originally don't bother posting them. Kinda like Gtech results

hahaha

dont go there

**Sammy125TDi** · 28-02-2011, 10:16 AM

Originally Posted by Fab_R

dont go there

Fab, seriously..please take your car to the drags... borrow a helmet and $50 and get a time slip.

It won't matter if you launch or roll off the line in 'D'... if your car runs 103+ mph there is no disputing the power. Not to mention the half track and 1000 foot readings. It will be 100% legit and will shut up the doubters.

**Fab_R** · 28-02-2011, 10:34 AM

Originally Posted by Sammy125TDi

Fab, seriously..please take your car to the drags... borrow a helmet and $50 and get a time slip.

It won't matter if you launch or roll off the line in 'D'... if your car runs 103+ mph there is no disputing the power. Not to mention the half track and 1000 foot readings. It will be 100% legit and will shut up the doubters.

Hey Sammy125TDi....will do mate...
Already have the helmet

so ready to go, will just wait for the next one to happen and i will be there...Im actually hanging out to go and do it.

Its about 10 years since the last time did a few runs in a mates Gemini with a stock VN Commodore V6...back then it was running 14.2 for the 1/4...no slouch for back then lol...