Mk6 Golf Acceleration & Performance Data

**Mr_Bob** · 21-02-2011, 10:58 AM

sorry, jsut re-read it and my explanation is pretty poor.
made sense when i wrote it

If the units are 10Hz resolution,
they could be 100% accurate for take-off, or up to 0.1sec out.

2 examples, assuming the exact same run,

1. G-Tech measures 5.2sec (0sec delay) Performance Box measures 5.6 (0.1s delay) - 0.4sec gap
2. G-Tech measures 5.3sec (0.1sec delay) Performance Box measures 5.5sec (0sec delay) - 0.2sec gap

**VW Central** · 21-02-2011, 11:12 AM

Originally Posted by dave_r

In a word, disappointing.

Exactly half tank of fuel, driver only (no passenger)

Code:

Run	Gtech	PerformanceBox
1	5.25	5.6
2	5.02	5.2
3	5.36	5.7
4	5.09	5.4

Runs 2/4 being the return trip. Outside temp was around 18deg according to the MFD, didn't bother with any VCDS logging.

I was told to expect ~4.9 for an APR Stage 1 tune with the PerformanceBox from the APR dealer who did the tune. As you can see, the car isn't near those figures. Only stock figures I can find are the claimed 5.7, don't have any of the aussie mags near me to confirm their results.

And with LC, its pretty hard to get it wrong...

Yep, I was expecting those sorts of figures. I took the vbox home for a couple of days and I got 5.1 consistently, I'm in a FWD which is obviously much harder to launch, this was done in 34ºC 67% humidity (not sure how much Water Methanol makes a difference in these conditions) . I would say Fab_R's would do a 4.7-4.8 with a Vbox as the HPFP, Exhaust and intake do make a bit of a difference. Can't wait to see his results.

**dave_r** · 21-02-2011, 11:15 AM

Just updated my post to clarify some info. The claim of 4.7 was incorrect, its around 4.9 (give or take I'd assume).

I've had a chat with the dealer who is keen to investigate more. I'm going to go past this arvo and he'll flash back to stock so I can do some runs to establish a baseline result.

From that point, I'll leave it with the experts so not going to jump to any conclusions at this stage.

**VW Central** · 21-02-2011, 11:22 AM

Originally Posted by dave_r

Just updated my post to clarify some info. The claim of 4.7 was incorrect, its around 4.9 (give or take I'd assume).

I've had a chat with the dealer who is keen to investigate more. I'm going to go past this arvo and he'll flash back to stock so I can do some runs to establish a baseline result.

From that point, I'll leave it with the experts so not going to jump to any conclusions at this stage.

I am not intending on stirring **** here, so mod's please settle down.. Most tuning companies don't actually flash you back to stock, it is still that companies tune that represents a similar stock like map.

**Fab_R** · 21-02-2011, 11:27 AM

Originally Posted by DeanCorp

Yep, I was expecting those sorts of figures. I took the vbox home for a couple of days and I got 5.1 consistently, I'm in a FWD which is obviously much harder to launch, this was done in 34ºC 67% humidity (not sure how much Water Methanol makes a difference in these conditions) . I would say Fab_R's would do a 4.7-4.8 with a Vbox as the HPFP, Exhaust and intake do make a bit of a difference. Can't wait to see his results.

Deano - Mine was running **** numbers on the night also...Not sure what humidity was but it was 18deg amb.

A few days before (day i picked up from Dean) 30deg going up a slight incline - Gtech 4.8 / Vbox 5.00 and f***ing very humid that day.

I was virtually getting the same numbers on a cooler night and flat roads....WTF

I think its worth noting re my car as well, and comparing to Daves results - effectivly both were not running nice numbers.

As where a month or so ago mine ran a clean 4.26 on a think a 10deg late night.

I honestly dont think the APR tune is at fault here. There are other factors.

We really need to go out again.

**dave_r** · 21-02-2011, 11:29 AM

Not sure I'd agree DeanCorp. If it was the case, it would negate APR's Back to stock for dealer servicing program entirely since VW's diagnostic computers would surely be able to detect software that is not their own.

Originally Posted by Fab_R

I honestly dont think the APR tune is at fault here. There are other factors.

We really need to go out again.

I think Dean's (Volkspower) suggestion of reverting the car to stock and repeating testing is the best place to start. I didn't say the tune was at fault, I just said i was disappointed with the results of my car (whatever the cause might be).

**VW Central** · 21-02-2011, 11:37 AM

Originally Posted by dave_r

Not sure I'd agree there. If it was the case, it would negate APR's Back to stock for dealer servicing program entirely since VW's diagnostic computers would surely be able to detect software that is not their own.

Not necessarily mate, the dealers can't really tell as long as when they scan the car it shows 'no of times flashed: 0' that's all they can really go by, and apart from driving the car, most mechanics will know whether it has been chipped as it will be far more responsive. So If they make a similar stock map it will be virtually impossible to tell anyway.

Only way to really know is to get a truly stock golf r and run them both on the dyno your 'stock' vs VW stock

**dave_r** · 21-02-2011, 11:41 AM

Originally Posted by DeanCorp

Not necessarily mate, the dealers can't really tell as long as when they scan the car it shows 'no of times flashed: 0' that's all they can really go by

No offence mate but I'd think their equipment is a bit more sophisticated than just looking at 'no of times flashed: 0'! A simple checksum would show enough difference, the only way that will match is like for like, not a close enough.

Anyway, I don't have any technical experience on this stuff so I'll stop with the assumptions but I wouldn't go as far to say that VW have no way of telling.