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Title: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: gt-innovation on July 25, 2013, 03:46:11 AM Here is a small finished piggy back project that i created a while ago.
It will add 30hp on you vw based car by modifying the map sensor signal making the ecu raise more boost. In the pdf you will find anything you need to create this device. Feel free to suggest anything and share your knowledge. Enjoy my creation. http://www.gt-innovation.gr/downloads/FreeArduinoBoostbox.pdf Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: orienz on July 26, 2013, 05:33:10 AM haha very cool :-) I worked with Arduino before. Very nice and easy hobby platform! I will dig more into your code to see what exactly you did. Did you verify gains on the dyno?
Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: NOTORIOUS VR on July 26, 2013, 06:47:17 AM Neat project, but piggybacks are a horrible way to increase power... Tricking the ECU is just.... wrong :P
Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: orienz on July 26, 2013, 11:05:46 AM Not always, not if it works as it should. Some very big companies are "tricking" ECUs, including Brabus and Carlsson. These are two most respected tuning companies in the world.
Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: NOTORIOUS VR on July 26, 2013, 01:37:20 PM Not always, not if it works as it should. Some very big companies are "tricking" ECUs, including Brabus and Carlsson. These are two most respected tuning companies in the world. Yes always :) Just because big companies do it doesn't mean it's the right way. The right way is to modify the ECU end of story. Everything else is just a compromise. Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: fredrik_a on July 27, 2013, 12:58:11 AM ... Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: gt-innovation on July 29, 2013, 05:12:27 AM This was a way to make demo to our clients :) I thought it would be helpfull for anyone that does not need much power.
Anyway in the pdf the gains are described and also the values that are inside.With the algo we made never had any problems and we tested that on cars for over a year... Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: orienz on July 29, 2013, 09:39:35 AM Yes always :) Just because big companies do it doesn't mean it's the right way. The right way is to modify the ECU end of story. Everything else is just a compromise. Bullshit. Carlsson was a full blown ECU (but still a piggyback) that went in between harness and stock ECU. It took care of EVERYTHING and passed modified signals back to ECU. It even communicated with automatic gearbox over CAN. I do not see anything wrong with piggy back as long as they are set up properly. What IS the difference if everything works 100% properly? We are all cheating for more power and pushing components to the limit. The only right way is leaving the car stock. Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: gt-innovation on August 01, 2013, 06:01:52 AM If someone makes a try and has any problems feel free to ask...
Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: NOTORIOUS VR on August 01, 2013, 06:56:59 AM What IS the difference if everything works 100% properly? The difference is it will never be as good. Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: funnix on July 02, 2018, 06:08:04 AM I built it once. Unfortunately it does not work as expected. I have tested it at a 2.0TSI but you notice no more performance. Maybe someone has a hint what I can try?
Running the Boostbox without mistakes and jerk, but no extra power. Do I have to adjust possibly the values differently, for the 2.0TSI? Would be nice if someone could help! Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: daniel2345 on July 02, 2018, 07:55:34 AM It will not work if filling is controlled by HFM.
Then charge pressure is only used to check HFM flow. But i dont know if 2.0TSI is doing it that way. Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: gt-innovation on July 02, 2018, 09:55:18 AM I built it once. Unfortunately it does not work as expected. I have tested it at a 2.0TSI but you notice no more performance. Maybe someone has a hint what I can try? Running the Boostbox without mistakes and jerk, but no extra power. Do I have to adjust possibly the values differently, for the 2.0TSI? Would be nice if someone could help! i did not test on 2.0l tsi. When i was developing that i had a 2.0l tfsi med9 and and a 1.8 tfsi med17 in my disposal. i tested on those and was working fine. Never tested on med17 2.0l tsi but it should at least add some torque if you did it correctly. Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: funnix on July 02, 2018, 10:08:49 PM Ok, thank you very much.
Would you have some parameters that I could check or change to test the device and to play with it? Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: gt-innovation on July 03, 2018, 01:25:32 AM The pdf is clear on that...you can not do a lot with the signal of the map sensor.Just fake the signal up to a certain point.
Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: dream on July 05, 2018, 09:44:44 AM Bullshit. Carlsson was a full blown ECU (but still a piggyback) that went in between harness and stock ECU. It took care of EVERYTHING and passed modified signals back to ECU. It even communicated with automatic gearbox over CAN. I do not see anything wrong with piggy back as long as they are set up properly. What IS the difference if everything works 100% properly? We are all cheating for more power and pushing components to the limit. The only right way is leaving the car stock. Not to trap down your idea, but why using a piggyback when you can fix parameters in the original ECU itself? And especially why make it yourself hard putting this second sort of ECU into the car, fix wiring etc. etc. while you can use OBD for read and write the original ECU instead? Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: fredrik_a on July 05, 2018, 11:18:27 PM If piggybacks were a good thing, then they would have been fitted on stock cars by the car manufacturer. ;D
Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: vwaudiguy on July 06, 2018, 09:17:56 AM If piggybacks were a good thing, then they would have been fitted on stock cars by the car manufacturer. ;D I hope you don't really believe that. Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: gt-innovation on July 06, 2018, 10:03:34 AM To be precise this is just a piggy back for the map sensor and was made just for showing off what the car could do with a remap to people who liked to have a test and i did n`t like to flash and re-flash the med17 ecu so it is simple and effective on the 1.8tsi.
i added Bluetooth on some next version but i never made any other pdf project for it as my time was consumed on other projects. so as said it works on med9.1 2.0l and med17 1.8l so if someone has something different he should n`t bother build such a device. I also used it on a seadoo jetski to avoid hitting the map sensor limit before i find where it was.(Siemens st10fx ecu). At that point i just changed the code to show a constant value after the boost hits 1.45bar. Title: Re: D.I.Y Piggy back ecu for 1.8 Tsi engines. Post by: funnix on July 06, 2018, 11:17:39 AM Hey GT, thank for your work and information.
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