Volkswagen tuning - results not bull***** APR Stage 3 GTX kit for Golf R

[Guy_H]

Another kit has just been completed in Sydney & run on BWA's MAHA Dyno - this is arguably the most accurate dyno in Australia & the same as Volkswagen & Audi use for their own testing & calibration.

Needless to say, it made more than the advertised number.

Candyman, I'm sorry if it came across that way, we have 3 people on the phones, sales / tech support, and the number of calls where people are fed mis information, told to buy hardware they don't require, tuners not delivering results takes up a big percentage of inquiries.

Just on Golf R's we have gone through the following - waste gate actuator / wategate spring / change DV / different boost pipes / R8 Coilpacks / RS4 Fuel valves / RS4 Injectors to name a few. NONE of these has any positive effect on making power, nor does any item restrict a car from making APR's advertised power, yet still people turn up at our dealer network having spent cold hard cash on them for no results.

We have several 500+ HP cars running here, and over a dozen around the country. 600hp on stock injectors, stock DV (at 35 + PSI of boost), stock boost pipes, stock coilpacks on a Golf R - tested & proven.

So apologies if anyone is offended

[Tarmac]

Guy because you used a hub dyno measuring at the front 2 wheels on an AWD car, what would you say these results would be on a AWD Roller Dyno? Would -20% be fair?
I think its fair to mention that given 90% of the country use Roller Dyno's it would be good to compare apples with apples.

At least the results should be repeatable as ive seen a lot of results down south where operators dont load the rollers up to give way high figures that are clearly false.

[Guy_H]

Ben, as you know, the Golf R is only a part time AWD car (full time 2wd), so in the exercise of measuring before & after engine power, running it in 2wd stops any traction control related throttle close. You can run it in 4wd, but little point. APR did an explanation of it here when building the MAX R Golf R:

VWVortex.com - APR Presents The BFGoodrich MaxR! -- Build Thread --

We have not compared our dyno to anyone else's, as you mention, there are too many variables in roller dyno's that are operator assisted. You can not fudge any of that on a hub dyno, and you can train anyone to use a hub dyno in a very short period. 10 different operators, exactly the same result.

We have seen our Dynapack run the same cars as MRT's, GT Auto Garage, LK Motors with the same type of vehicle (same mods), and at 200kw's at the hubs, these 3 dyno's vary less than 1%.

We have done a lot of work with Mainline over the years, at their HQ, At the tuner challenge, and our tech's were personally instructed on their use (By Todd & Craig) when we hired a brand new Mainline for APR to do a calibration trip a couple of years ago. They seem very repeatable with the same operator & the same run parameters. Tyre pressures & tie down method do screw the readings around a fair bit, so by nature you can alter the readings a fair chunk by playing with those.

We have 5 dealers (or more) that have new Mainlines.

Dyno Dynamics vary wildly, I can't speak for the past year, but when the company went bust, there was no software development for some time, nor any method to calibrate them, hence why readings tend to vary dramatically from one Dyno Dynamics to another.

We have 3 dealers with Dyno Dynamics, our closest, CNJ Motorsport at Underwood, their dyno tends to read ~ 5 - 15% differently to ours.

We are also very lucky to have BWA's MAHA dyno in the country, this thing is the king of dyno's. Every stock Haldex car they have run has been bang on factory power & torque numbers as claimed by VW / Audi. You can run a car in first gear or fifth & the run down calculations give the same crank figure. Its a shame about the price, or every euro workshop would have one.

You also get to a certain power level on some drive trains where roller dyno's don't work. Sam & Myself found this with our 550hp front wheel drive GTI's, with a steep power curve of the TSI motor, they just break traction with 4 straps holding them down & 5 people sitting in the car. Hub Dyno is the only way to measure things like this.

Funnily enough Mainline now have their own new hub dyno (and its a beauty), and they have already stated "it reads differently to their chassis dyno"



We have run about 60 Golf R's on our dyno, (and 50+ GTI's), so with set mods, we can train the owner to use our dyno, and we can guess the results within a couple of KW's up to ~ 260 pretty easily now.

If anyone would like to visit our office, we would be very happy to pull up a heap of these dyno's & show just how repeatable they are.

[Guy_H]

See how our Golf R goes up against 23 of the hottest Tuner cars in the country - Piloted by pro drivers Warren Luff, Jack Monkhouse & Darren Morgan MOTOR Magazine On Sale June 10th 2014.

This is a customers car with 100% off the shelf parts, full weight, no adjustments to be made during the event, not even tyre pressures.

[Guy_H]

We just took this same car back to the drags last night (still a customers car) running unleaded race fuel, pulled the back seats out & rear muffler off (mostly for noise!), and with two different drivers, the car ran two 10 second 1/4 miles.

Not bad for all off the shelf parts!

[grandturismo]

Bloody hell!!!
Well done.

60' is impressive, better than your Stage 4 R with drag radials. Do anything different?

[Guy_H]

Bloody hell!!!
Well done.

60' is impressive, better than your Stage 4 R with drag radials. Do anything different?

Nothing this time Alan, the software calibration has come a long way since we set our old record almost 2 years ago. Stage 3 is as fast as we were with stage 4 then.

Doing a rebuild on the stage 4 car now - it will go faster

[ICEWOLF]

Stupid Ques: is that MPH typical for a 10sec pass??

[MGV]

Is that an HQ station wagon in front? Those things are getting rare! Especially at the drags!

[Guy_H]

Stupid Ques: is that MPH typical for a 10sec pass??

Certainly in a Golf R we seem to need to trap ~ 125mph to hit the high tens

Is that an HQ station wagon in front? Those things are getting rare! Especially at the drags!

XA Fairmont, beautiful car, big engine & huge bonnet scoop. Running low 11's