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What you don't know about Porsche 997.1 Turbo ECU tuners

Killer-M | On 03, May 2015

What you don’t know about Porsche 997.1 Turbo ECU tuners

Thought I’d write a quick update on what I have recently heard of the current state of the Porsche 997 Tuners. These, in most cases are respected Porsche tuners, however there seems to be some information (relayed to me) that I thought I might make public aroundtheir performance.I heard some rather interesting and a bit disturbing information on how they develop their tunes and why in most cases they are flawed.

Recently I decided to upgrade to 68mm Variable Vane Turbo Chargers (developed by Champion Motrorsports in Florida). Together with the turbos I’m upgrading the Intercoolers (also developed by Champion Motorsports) and internal WERKS air hoses (another one of their products). This of course ment that I needed to upgrade my ECU tune – I’m currently running Softronic which was developed for 93 Octane, and after market exhaust.

Softronic by the way claim that with that setup one can reach 615hp from a 997.1 Turbo (stock 480hp) car. Mostenthusiastthis those numbers arestretched, but that’s what they publish.

The shop that I decided to work with has a set of dynapack dynamometers that I’ll be using to test the performance – which is why I selected the shop for the build.

For those of you who don’t know about it (like myself – I had to research to find out the benefits). Read about it here, interesting stuff, and why the hub mounted method is substantially more accurate than other dynos.

After meeting the guys it was clear they are absolute enthusiasts. The had three cup cars in the shop, one of them being theirs. They also had a monster green, full blown Japanese Porsche 993 RWB in undergoing tuning in the shop. These guys race their cars, work on them and even develop custom tunes for them.
Which leads me to some info I thought I would share…

They mentioned that on quite a few occasions when 997 (T’s and GT3’s) come in to their shop with other tuner software, they found that those tuners configure their maps to push more power and torque early in the rev range to give that initial sensation of increased performance (you know the ass-dynometer) but those tunes practically canyon out mid to end RPM range. He walked me through a 997 GT3 and 997.1 turbo maps that he had available on the dynos. It was clearly apparent that the tuners push their software to give that initial performance push early in the rev range and absolutely under perform in the end half. He walked me through what they did to fix it, with pre and post results(they custom tune in shop as previously mentioned). I’m saying this as these are some tuners that are respected on different forums that the Porsche community should know about.

I’m currently running the Softronic tune and in all honesty I have been happy with it for the last 4 years. the car feels sharp, faster and generally more fun to drive. However what was mentioned to me rang true, as there have been a number of occasions that on a highway in high RPM the car didn’t feel that much faster. That innitial lurch was there but something was missing.

I’ll be dyno’ing the car and will post my findings once I have them.

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