APR ECU and APR HPFP

[Pappon]

Hey guys just bought a 2006 golf gti and was interested in doing the following things:

APR ECU
APR HPFP

Apparently from this i get the power will go up from stock 147kw 280nm to 188kw and 411nm. The APR HPFP from what i'm told gives approx 20kw at 3000rpm-5000rpm which i think is quite good.

Has anybody fitted the HPFP and what are the results and opinions? ALso do i need a diverter valve if fitting an APR ECU?

Also i know fitting an ECU doesn't alter insurance much how about when fitting the fuel pump? Any advice on this subject guys?

Sorry another question do most guys who fit the ecu upgrade brakes and or suspension?

Thanks in advance guys.

[DNA Tuning]

I suggest just going for the APR ECU as their fuel pump will not add power to your car. The fuel pump may come in handy for Stage 3 setups but you can always get that further down the track.

As you can understand, having the capacity for more fuel delivery is great, but if the stock K03 turbo is unable to generate enough air/boost to require this extra fuel then it is pointless; ie. the fuel pump itself does not magically add 20kW.

[Pappon]

I emailed APR and i was told this

"With the fuel pump gains you cannot just add 20kw and 20nm on to the peak power. This gives a gain between 3000rpm and 5000rpm."

So i assumed that gave gains of upto 20kw at 3k-5kprm.

Okay so do i need a diverter valve DNA?

[DNA Tuning]

The first part of their response is a definite fact; the second part, well, let's just say I'm not convinced and leave it at that. A 2.0TFSI engine on stock turbo will not max out the standard fuel pump that easily.

I would recommend an upgraded diverter valve if your original one is beginning to show signs of wear, but again I'd suggest getting the tune alone first before then deciding what else you want/need. The standard DV, when working properly, can support faily high levels of power without leaking boost.

[Pappon]

Cool, also i hear a constant argument about chips hear. What's the go with GIAC vs APR? Which gives more power and a better delivery of power? Or the benefit is so small we are trying to split hairs there?

[DNA Tuning]

Haha, I don't think I've been asked that question before... for obvious reasons, but um... here goes.

If you had to choose between GIAC and APR, I'd go the GIAC because I believe they are a little cheaper. If you want the switchability of programmes via the cruise control stalk then I'd go for APR. Having driven and ridden in several APR/GIAC cars, I'd say the GIAC tune feels abit stronger subjectively in the midrange despite not making a torque claim as high as the 411Nm that APR states.

If you want an incredible level of smoothness with the same peak power as the other 2, then go for a DNA tune. =)

[Tim]

I suggest just going for the APR ECU as their fuel pump will not add power to your car. The fuel pump may come in handy for Stage 3 setups but you can always get that further down the track.

As you can understand, having the capacity for more fuel delivery is great, but if the stock K03 turbo is unable to generate enough air/boost to require this extra fuel then it is pointless; ie. the fuel pump itself does not magically add 20kW.

The fuel pump adds a nice chunk of mid range torque where the standard cam driven pump struggles to supply enough pressure (more revs = more ability to supply fuel).
Adding the pump allows the tuner to increase performance where it really matters. Its a night over day comparison imo. Obviously the fuel pump needs a tune that takes advantage of the extra fuel available at low rpm though.

[noone]

You won't need / want to switch back to stock, that feature is really only for people hiding the chip under warranty.

[manol]

Hey guys just bought a 2006 golf gti and was interested in doing the following things:

APR ECU
APR HPFP

Apparently from this i get the power will go up from stock 147kw 280nm to 188kw and 411nm. The APR HPFP from what i'm told gives approx 20kw at 3000rpm-5000rpm which i think is quite good.

Has anybody fitted the HPFP and what are the results and opinions? ALso do i need a diverter valve if fitting an APR ECU?

Also i know fitting an ECU doesn't alter insurance much how about when fitting the fuel pump? Any advice on this subject guys?

Sorry another question do most guys who fit the ecu upgrade brakes and or suspension?

Thanks in advance guys.

I have a GIAC tune with the upgraded HPFP, intake and downpipe and at the last dyno day in Melbourne I scored 164.8kw.
No other "Stage 2" car came close.

With APR you don't have the option of picking whatever brand of HPFP you want, if you buy a fuel pump that ISN'T theirs you have to pay to have the tune upgraded to account for it. You don't have to with GIAC.

The APR fuel pump is $1700 which is a ****ing rort. I'm fairly sure you can pick up an Autotech HPFP from the US for half that price.

The HPFP makes the car feel a ****load stronger in the midrange than what it is stock. I disagree with John. An appropriately tuned car with a HPFP and downpipe makes a massive difference in power in the midrange.

I also have a dyno graph to backup my results.

Speak to Arthur at Exotic Cars and he'll be sure to help you out.

John, I'd love to see a Stage 2 DNA Tuning GTI that compares.

[DNA Tuning]

Just want to clarify that our "Stage 2" file is not the same as your Stage 2 file in terms of boost. Our "Stage 2" is a file that makes no requirements for other modifications; instead it is a level of tune that is more aggressive than our "Stage 1" and is safe to run on a stock vehicle, as in the case of David's Octavia which did 150kw on the same day as your car.

We have a further level "Stage 2+" which is designed to accompany downpipe/intake/intercooler upgrades which would easily lift the performance level up to if not beyond the 160's. In fact, even on his current tune, downpipe/intake upgrades could quite easily bring the car close to the 160kW mark on the same day.

I hope this clears up any confusions or misconceptions people may have regarding "Stages"; what one company defines is different to another. We rate our Stage 1 program at 184kW, Stage 2 at 188kW, and Stage 2+ at 196kW. As such, the different in peak power is greater between the 2 to 2+ than between the 1 & 2.

I have a GIAC tune with the upgraded HPFP, intake and downpipe and at the last dyno day in Melbourne I scored 164.8kw.
No other "Stage 2" car came close.

With APR you don't have the option of picking whatever brand of HPFP you want, if you buy a fuel pump that ISN'T theirs you have to pay to have the tune upgraded to account for it. You don't have to with GIAC.

The APR fuel pump is $1700 which is a ****ing rort. I'm fairly sure you can pick up an Autotech HPFP from the US for half that price.

The HPFP makes the car feel a ****load stronger in the midrange than what it is stock. I disagree with John. An appropriately tuned car with a HPFP and downpipe makes a massive difference in power in the midrange.

I also have a dyno graph to backup my results.

Speak to Arthur at Exotic Cars and he'll be sure to help you out.

John, I'd love to see a Stage 2 DNA Tuning GTI that compares.