Tiguan IS38 and Big turbo upgrades

[Dose Pipe Sutututu]

Newer, modern cars all run EGT, IAT, Baro, Wideband O2, Fuel temp sensors, multiple knock sensors, etc. which enables multiple dimensions to both the ignition and fuel tables. Thus if you're smart enough to interpolate the tables for either end of the spectrum then you'll be fine.

Back in the old days yes you would need a map per location however these days there is simply no need with varying dimensions applied on maps with each additional sensor.

[Psych101]

To be clear it’s not a single generic/standard map, you can select a octane/ethanol specific map for most octane types 95/98/104/e85, depending on your model. Being a global distributor and tuning thousands of cars a year, with proper R&D to get reliable and consistent power, mastery of various ECU types makes APR a well regarded tuner.

Not withstanding all that you can go get a custom tune with Underground Racing, Etuners, Etuners Motorsport or other generic tuners like Revo, GIAC or even piggy backs like Race Chip or Burger Motorsports.

In terms of being a conservative tunes, APR holds a number of world record 1/4 mile times for the VW and Audi platforms, so I wouldn’t call that conservative.....

Not a criticism but it would be conservative compared to a custom tune. They have got to cover their arses and make a reliable map to suit all kinds of conditions for a given fuel type. Thanks for that info though.

[Melbourne_Tiggy]

Not a criticism but it would be conservative compared to a custom tune. They have got to cover their arses and make a reliable map to suit all kinds of conditions for a given fuel type. Thanks for that info though.

Yeap, they won’t be pushing engines to the extremes. I for one love the fact that it’s going to be reliable and not cause me any headaches. All the best with your research, perhaps post a review of the tune that you end up with to benefit the community.

[Dose Pipe Sutututu]

Conservative wouldn't be the right term however they wouldn't being putting much timing in to be knock limited.

Then again who knows what these tunes do, could be purely more boost and that's it or same timing more boost and spray more fuel to suppress knock.

I've been trying to find software and hardware that allows me to do my own tuning however haven't been close to anything.

BMW platform you have a few options such as MHD combined with Tuner Studio.

[tigger73]

Not a criticism but it would be conservative compared to a custom tune. They have got to cover their arses and make a reliable map to suit all kinds of conditions for a given fuel type. Thanks for that info though.

Correct.

Here's a recent comparison between the latest revision Stage 2+ APR tune and a RD Technik custom dyno tune on the same car, same hardware.

[Melbourne_Tiggy]

Correct.

Here's a recent comparison between the latest revision Stage 2+ APR tune and a RD Technik custom dyno tune on the same car, same hardware.

Ah...the oldie but goodie EA113 front wheel drive....it would be good to see a Tig, GTI or R with a EA888 Gen 3 IS20 or IS38 comparison....

[Dose Pipe Sutututu]

Just by looking at the torque produced they're running higher duty cycles to make the torque "peaky" from boost coming on hard and bleeding off.

The rest of the power would be from timing changes.

Would have been good to see manifold pressure overlaid too and if the ambient temp probe was connected lol

[tigger73]

Ah...the oldie but goodie EA113 front wheel drive....it would be good to see a Tig, GTI or R with a EA888 Gen 3 IS20 or IS38 comparison....

This was only done recently in the last month or so. However the question about APR "generic" tune vs custom tune and the answer is that if the custom tuner knows what they're doing then they can make more power and still do it safely.

There's probably a bigger safety margin in the "generic" tune but an extra ~15kwaw is a decent increase and your bum dyno would definitely feel it. It's similar sort of increase as going from stage 1 to stage 2.

[tigger73]

Just by looking at the torque produced they're running higher duty cycles to make the torque "peaky" from boost coming on hard and bleeding off.

The rest of the power would be from timing changes.

Would have been good to see manifold pressure overlaid too and if the ambient temp probe was connected lol

Different tuners have different ways they go about tuning for sure.

It's always what you as a customer are going to be happiest with and there's a range of factors why people go one way vs. another in terms of tuning. Quite often it's not about the peak number but more about service, ongoing support, future mods and ability for the tuner to accommodate, etc.

But nobody would usually complain with a few extra kwaw

[Melbourne_Tiggy]

This was only done recently in the last month or so. However the question about APR "generic" tune vs custom tune and the answer is that if the custom tuner knows what they're doing then they can make more power and still do it safely.

There's probably a bigger safety margin in the "generic" tune but an extra ~15kwaw is a decent increase and your bum dyno would definitely feel it. It's similar sort of increase as going from stage 1 to stage 2.

In your example that is obvious in the graph for a EA113. I would be interested to see on other modern MQB engines in particular what the differences are for custom tuners vs the global tuners are. At the end of the day, as more people make decisions to tune and that information is published and tested by consumers hopefully this helps others make informed decisions.