BSR Tiguan TDI tune

[Dingah]

The forum should be thankful for your patience in putting that post together which clarifies the difference between piggyback and an OBDI hosted flash tune in an insightful manner. It may well be the case in future iterations of ECU software that the levels of encryption on the ECUs may preclude access to the ECU altogether for the purposes of flash tuning and the far cruder, but oft effective piggyback may become the only way to adjust power outputs.

Tx

Dingah

[Greg Roles]

Everytime a OEM ECU comes out with better encryption, some aftermarket programmer starts work on cracking it. Interestingly one of the guys I have access to is actually paid by exotic manufacturers to write ECU software for them, and runs his tuning programming on the side. I guess when you write the OEM program, you also know the way back into it! Wouldn't surprise me if this is more widespread, company man by day and aftermarket hacker at night.

Thanks for the kind words, and alerting me to BSR's very cool handheld, I'm always looking for better options.

[Greg Roles]

The power gains on the diesel have never been enough to spend $1-$2k in my opinion.
This BSR one gives 47Hp, or about the difference between the standard Tiguan 103kW and the currently offered 130kW diesel.
I would like to know how VW gets this increase, as if it is through tune (not a larger turbo) then I would be expecting any chip tuner simply to copy this

Very different, including turbo and injectors, and a flash tune on either yields correspondingly different results because of this.

[Dingah]

Everytime a OEM ECU comes out with better encryption, some aftermarket programmer starts work on cracking it. Interestingly one of the guys I have access to is actually paid by exotic manufacturers to write ECU software for them, and runs his tuning programming on the side. I guess when you write the OEM program, you also know the way back into it! Wouldn't surprise me if this is more widespread, company man by day and aftermarket hacker at night.

Thanks for the kind words, and alerting me to BSR's very cool handheld, I'm always looking for better options.

LOL!
Maybe you can get him to try and access the Audi SQ5 encryption for the Oz model ECU - nothing around yet.

Dingah

[Greg Roles]

Yeah Piggyback only on that bad boy - like you need MORE power on my dream car!

[tigger73]

Yeah Piggyback only on that bad boy - like you need MORE power on my dream car!

or more torques - stock is 650Nm....

[Greg Roles]

well 800nm is the gain, helps with those merges.

[tigger73]

Yeah though at some point there's only so much torque will help with the inertia of 2 tons of metal and you're better off looking to strip weight to go faster. A tuned SQ5 will do 0-100 in ~4.8sec (stock claimed figure is 5.1sec). I would love one of these but I think it's going to remain on my wish list.

Though back to the 103TDI, you'll definitely get quite noticeable gains on the road from chipping it to 130kW/400Nm. Best if you do it to one with a DSG but will still give reasonable improvements on the older auto box also.

Interesting that the SQ5 has to run a traditional torque converter auto as the twin clutch DSG/s-tronic can't handle the massive torque.

[Greg Roles]

Yeah but nothing beats the fun of surprising the falcadores etc at the lights in your hairdresser SUV....

[Dingah]

Perhaps the SQ5's greatest strength is its absolute competency at almost everything and the ability to go sub 5 with so little fuss and uproar - I am glad I made the decision. I rarely miss the DSG these days, particularly if caught in traffic and the 8 speed Z box is a pretty smart piece of kit and as soon as it locks up, which is quickly, it's a solid drive line so no real difference.
That said, my wife's R Line Tig with the APR tune for ECU and gearbox is also a delight to drive and in sports mode the handling is impressively tidy - it just likes a drink of the 98 when hoofing around.

Dingah