help on deciding which flash tune

[Russ59]

Mine is a pre DPF, would that make a difference? Am a bit concerned what you say in regards to heat but I don't flog my car for prolonged periods of time and max speed i ever travel at is 120. Mainly after increased acceleration for overtaking etc..and the occasional blurt off the line at lights

The simple fact is that some of the 103 kw TDI engines have had problems with the turbo's after chipping. I don't know all the gory details but I don't think I'd be prepared to risk it myself as it could be an expensive exercise if it happens as I doubt that warranty would cover it, especially if VW find out it had been chipped. I would love to chip my GT TDI as well but all this talk of heat issues concerns me to the point that I also am unsure about chipping it just in case even though it would be great fun I'm sure

If someone gave me a written guarantee that I would not experience any problems at all with damaging my engine (with normal spirited driving) due to having it chipped then I might consider it, but I think that would probably be a tall ask and like most warranties could still be argued (and most likely would be ) if you needed to make a claim.

Russ

[mrx]

Slightly OT, as I'm talking about petrol here. I have two petrol 2L TFSI cars, one has Bluefin & one has the ST3. At the time ST3 was approx $600, which was half the price of Bluefin & substantially cheaper than APR, Oettinger, GIAC etc. The main reason for me choosing ST3 & Bluefin is NOT having to rely on the local support. I am very much DIY everything.

Anyway, I find that the ST3 map is smoother which makes it feel slower - but in reality it is about the same or even slightly quicker than Bluefin, the ST3 definitely has more top end. I have done lots of logging of EGT's and neither of them exceed the Borg Warner specs for the turbo (Bluefin peaked at 970 deg), but the ST3 runs cooler, not a lot higher than stock. The only problem I have with the ST3 is that the flash counter does increase on the petrol 2L turbo, but that isn't an issue for the 2L diesel.

Now that the Bluefin price has dropped it'd be a hard call. Depends if you want the rush, or civilised smoothness?

[Russ59]

The only problem I have with the ST3 is that the flash counter does increase on the petrol 2L turbo, but that isn't an issue for the 2L diesel.

They haven't worked out a fix for that issue yet I take it ?

I would really love to chip the GT but I'm just not sure, I don't like the thought of the cost to repair something especially if warranty won't cover it

Russ

[nayfen]

i have oettinger on a pd system had no problems. mine is a 2005 model also All Oettinger software is covered by an extensive 12 month, engine / drivetrain / breakdown warranty, and you can extend this to a possible 3 year coverage on a new vehicle! imo you get what you pay for.

[Logzy]

They haven't worked out a fix for that issue yet I take it ?

I would really love to chip the GT but I'm just not sure, I don't like the thought of the cost to repair something especially if warranty won't cover it

Russ

Flash counter has been fixed for the 103kw TDI but not for our 125kw TDI
Still more than happy with the results of the ST3 though.

[mrx]

Flash counter has been fixed for the 103kw TDI but not for our 125kw TDI

Woops, yes sorry, should have been more specific when referring to the 2L diesel.

[mrx]

They haven't worked out a fix for that issue yet I take it ?

I would really love to chip the GT but I'm just not sure, I don't like the thought of the cost to repair something especially if warranty won't cover it

Russ

I've had a couple of engine related warranty items done since having the flash and they've fixed it (reverted back to standard of course).

[Russ59]

I've had a couple of engine related warranty items done since having the flash and they've fixed it (reverted back to standard of course).

If you don't mind me asking mate, what chip are you using and on what engine ? Can you revert it back yourself or does it have to be done for you ?

I haven't really looked into it all that much as yet

Russ

[mrx]

If you don't mind me asking mate, what chip are you using and on what engine ? Can you revert it back yourself or does it have to be done for you ?

I haven't really looked into it all that much as yet

Russ

Post #17 of this thread. With both you have a hand held unit and you can revert it back yourself in about 15 minutes.

[BarneyBoy]

It's also why I'm spending all this time up front increasing my tractor's thermal handling, all in the aim of minimising EGT's once I get her chipped.

Hey cog, what do you plan to do for the thermal issues - intercooler or something else (maybe water cooled?)? And is all this temperature at the downpipe part of the exhaust or deeper in the engine?

Sorry for semi-jacking the thread, but it does affect the chipping of diesels.

[Russ59]

Post #17 of this thread. With both you have a hand held unit and you can revert it back yourself in about 15 minutes.

Cheers for that

Russ

[Guy_H]

Do you think its time to start a thread on EGT's and how to measure them properly?

It's a huge issue - I know MRX has measured some of his on Petrol powered cars, but from what I gather, it was from some short road logs with varying throttle which is NOT the way to measure EGT's and how they affect engine longevity.

I have seen damaged turbo's from high EGT's, the damage can occur in as little as a couple of thousand km's, or it can take a bit longer (depending on other conditions).

Point is, you may save a few dollars on your tuning - can you afford to rebuild your 2.0 TDI if your tuning is not up to scratch?

[wokwn]

Do you think its time to start a thread on EGT's and how to measure them properly?

Yes please, assuming that it doesn't require a pyrometer to be installed. That would be a bit of a giveaway to the dealer.

I looked through the VCDS label files for the BKD engine and I can't figure out which one is EGT.

[Guy_H]

No problems. - No EGT probe required.

For a start - you need to load the car (say on a petrol engine), you need a dyno capable of holding full sustained power for up to two minutes.

say at 5500rpm, you will see the EGT's fluctuate up & down, and then after a period of time, they will stabilise & settle. This is the reading you need to work on.

I will have to find out the measuring blocks for the EGT's on the TDI's - it differers per control unit.

If you go into Vag Com (Hex USB + CAN) - into applications, and use the "controller channel maps" - put this in a spreadsheet & it identifies all channels that are able to be measured.

[Greg Roles]

I've started a EGT thread Guy / guys love your knowledge in that!

A dyno sounds like a better and much safer option!