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#RPI REDDIT LOGICWORKS UPGRADE#

I don't know how the ECU's logic works, but it'd be easy to have another controller read the N75 duty cycle and interpret it as requested boost. One of my biggest questions at this point is, can the N75 output just be used as an input to another controller. It may not be feasible or practical, but was an idea I wanted to at least try and chase down. With my limited knowledge though, I don't know how practical and/or possible this is.Ĭlick to expand.Lol, no argument there. I'd hope for the setup to be capable of 250-300HP, while still spooling fast and early. What I would love if it's possible, is to have the first turbo coming in strong by 1500 RPM's or earlier, while having a large enough turbo for it to not become anemic at ~4500 like the stock unit. Is it possible to use the ECU's N75 output as a boost request input to the Teensy, which then uses a PID controller or such to control the wastegate(s) and obtain the requested boost? I'm not sure how the ECU's logic works, and if it would actually allow the use of the N75 output as a simple boost request.

I already have a Teensy and Raspberry Pi in the car for other purposes (cruise, CAN interface, dash display), and would like to use the Teensy to control the wastgate(s).

#RPI REDDIT LOGICWORKS HOW TO#

Since I wish to do a sequential setup, is turbo size of the same importance as with a compounding setup? Being that the end goal is for the large to essentially bypass the small?Īre there any particularly good reads on how to read turbo maps? And how to select two to work together?īased on what others have done (albeit compounding), It looks like it's easiest to stick with wastegated units vs VNT. Hence my post! My main questions would be: This sounds right up my alley, but that means I need to pick the best turbos for my application, and I know fairly little when it comes to sizing turbos. That it might be done for a decent price as well if I can do the fab work. I recall mentioning this to someone, and it was suggested rolling my own may be the best option. Also, the big turbo only seems to be about a K04 in size, it still wouldn't maximize what the rest of the motor is capable of. From what I read, retrofit is too difficult to be practical, and I'm a bit reluctant to spend the money and find out for myself. I played around with the idea of using the Amarok piece, but they all appear to be of the oval port design. As such, I'd like to build a sequential setup, similar to what the Bi-Turbo Amarok uses.

#RPI REDDIT LOGICWORKS UPGRADE#

Eventually, I would like to upgrade the stock turbo so I can get much more power from the motor, but being that it's moving a larger car, and that I tow with it, I am reluctant to lose the low-end torque/quick spool. It's been a great running engine so far, still with the stock BV43 turbo. I have a CJAA that I swapped into my C5 A6 Quattro.

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