GT 2.0Ltr & DPChip!!!!

[TDI Dude]

TDI Dude,

Go for a plug in module, they have their place in the market - but keep in mind that the ECU is a MED17 and PPD 1.2 ECU & can record & hold the fault codes indefinately (and also records all fault information like speed, gear, temperature, fuel pressure, boost, atmo pressure etc) when the fault code is thrown. Its pretty easy to see if it has had the fuel pressure raised.

The second & most obvious way of telling (especially on the new dpf motors) is fuel system leaks around all the positive side fuel fittings. We have seen a near new Touareg here that had fairly major "weeping" around the injector pipes, pressure sender & pump fittings. Needless to say VW denied warranty as it was clear that fuel pressure tampering was the cause. Thankfully there was no major effects on the mechanical systems.

Fair call that VW may never check it - but you never know, there may be a case when they do.

Also check the warranty agreement in writing and make sure exactly what it covers you for and exactly what dollar amount (and who carries out the assesment & repairs). Warranty is great for the modification industry!

Wouldn't the same criteria apply to APR?? Or all aftermarket modifications performed on engine management systems?

[GermanwithaVdub]

When you understand how it actually works you will probably lose interest in this idea rather rapidly.

"Electronic diff lock" is the marketing name used by VW and is more than a bit misleading. It works by applying the brake on the spinning wheel (ie the one with less traction), which forces the bulk of the engines torque to go through the other wheel (which presumably has better traction because it isn't spinning). Assuming you want to use it for quicker acceleration then applying brakes is the last thing you would want to do

Not a bad reply for "Someone with limited mechanical knowledge" ?

is the electronic diff lock switched off when you turn off esp?

with esp on i get massive axle tramp in the wet but with it off the car has more tendancy to just spin the wheels. both those scenarios get me nowhere really quickly

[datracer99]

I think the "electronic diff lock" is the ESP system.

It can work quite well, even in the wet, but you need to allow for it - slip the clutch and control the throttle in the same way you would if you are launching without ESP, and it can help fine tune things for you. Just don't go overboard - too much throttle and the electronic nanny goes overboard too and really slows things down.

Practice your launches with the ESP off, get the best launch that you can, then turn ESP on and use the same launch technique and see how it goes.

Is anyone aware of any factory fit LSDs available for the manual box, which don't void your warranty, and has anyone had it done on a GTI?
It's the mod I really think will make the biggest difference. I don't see much point having another 40kw until I can can get it to the ground properly.

[Transporter]

When you understand how it actually works you will probably lose interest in this idea rather rapidly.

"Electronic diff lock" is the marketing name used by VW and is more than a bit misleading. It works by applying the brake on the spinning wheel (ie the one with less traction), which forces the bulk of the engines torque to go through the other wheel (which presumably has better traction because it isn't spinning). Assuming you want to use it for quicker acceleration then applying brakes is the last thing you would want to do

Not a bad reply for "Someone with limited mechanical knowledge" ?

I disagree with you on that one.
The driving on slippery roads especially when snows is much better when you have el. diff lock. Better than any other front wheel drive car with limited slip diff.

[GermanwithaVdub]

I disagree with you on that one.
The driving on slippery roads especially when snows is much better when you have el. diff lock. Better than any other front wheel drive car with limited slip diff.

i think most of us tossing up the idea of an lsd are after it for speed and performance rather than traction for safety in unusual situations. i know ill probably never take my car into mud or snow or gravel, ill save the bomb old commodore for that

[SoVeReIgN]

is the electronic diff lock switched off when you turn off esp?

Nah, I don't think you can turn it off - Although it only 'works' under 40km/h

I think the "electronic diff lock" is the ESP system.

It can work quite well, even in the wet, but you need to allow for it - slip the clutch and control the throttle in the same way you would if you are launching without ESP, and it can help fine tune things for you. Just don't go overboard - too much throttle and the electronic nanny goes overboard too and really slows things down.

Practice your launches with the ESP off, get the best launch that you can, then turn ESP on and use the same launch technique and see how it goes.

No, EDL has nothing to do with ESP and EDL turns off in that situation (You drop/slip the clutch and one wheel is free spinning - As soon as a wheel spins too much it turns off so it doesn't fry your brakes)

I disagree with you on that one.
The driving on slippery roads especially when snows is much better when you have el. diff lock. Better than any other front wheel drive car with limited slip diff.

How? There is absolutely no way in the world that EDL is better than a real LSD in any driving conditions.

[Logzy]

How? There is absolutely no way in the world that EDL is better than a real LSD in any driving conditions.

I agree. EDL is VW's crappy name for traction control IMO.

[gregozedobe]

I disagree with you on that one.
The driving on slippery roads especially when snows is much better when you have el. diff lock. Better than any other front wheel drive car with limited slip diff.

The original poster said "but who cares about a chip, it would be useless without an LSD", implying that the extra power of a chipped motor wouldn't be able to get to the road without some help in the traction department (ie an LSD). So we were talking normal roads originally, not snow.

This is a quite different situation to traction problems in very slippery conditions where even a standard 1.6l motor can produce too much power (eg snow, mud, wet grass etc).

FWD cars will always have difficulty putting large amounts of power through the front wheels only when there are traction limitations, which is why a 4WD is usually way better in slippery conditions (eg R32, Audi Quattro, Subaru).

Electronic aids can help, and even disguise the problems in some situations, but the basic laws of physics still apply (and they apply to 4WDs too, which can go around corners and accelarate better in the rain, but stopping ability is much the same as a good FWD). The best advice I can give is to always drive to the conditions, and leave a bit in reserve in case something unexpected happens.

[Guy_H]

Wouldn't the same criteria apply to APR?? Or all aftermarket modifications performed on engine management systems?

Not sure which part you are referring to - but PM me if you like as the thread has headed off the EDL sort of path.

P.S. APR do not sell diesel tuning in Australia - Its Oettinger (APR's Sister company) - The engine improvement specs, dynograph, and the written warranty document are listed here:

www.oettinger.com.au - or you can email or call us & we will explain the differences for you

[TDI Dude]

Not sure which part you are referring to - but PM me if you like as the thread has headed off the EDL sort of path.

P.S. APR do not sell diesel tuning in Australia - Its Oettinger (APR's Sister company) - The engine improvement specs, dynograph, and the written warranty document are listed here:

www.oettinger.com.au - or you can email or call us & we will explain the differences for you

Ahhh Mr Guy_H I tried to PM you but it said you have too many messages already and cant send. PM if you'd like and we can discuss Ottinger versus DPchip

[Guy_H]

Just cleared the PM's! - best to give me a call tomorrow as I'm a slow typer - but I'll try to help!

Cheers