Electronic and Manual Boost Controls

With Turbo and Super charging you can create massive horsepower with vw motors.

Moderator: seabeebuggy

User avatar
Chip Birks
Posts: 2981
Joined: Wed Mar 12, 2008 7:59 pm
Location: Pleasant Grove, Utah

Re: Electronic and Manual Boost Controls

Post by Chip Birks » Sat May 26, 2018 11:47 pm

This is the finished product. Forgive the bad paint match, its closer to whats on the outside of the car. Better than black though. Can you tell which is the new switch?Image
I ended up making a "lens" in the trim. Cut a slot with a dremel, then laid tape over it to hold its form, then filled it with epoxy. Once cured, I pulled off the tape and thats what you see there. I took a video and will add that shortly.

As far as the wiring goes. The switch is a 5 position rotary thing from Radioshack. It has 2 poles, and that essentially means that it can do two different functions for each switch point. I have resistors wired in series across one set of contacts, this is what will allow me to connect to an analog input on the ecu. I feed it 5v and it divides the 5 volts by the amount of resistors in line. That what tells the ecu what setting. So three wires go to the computer. 5v, signal ground, and the analog ecu pin you are connected too. The leds are wired to the switch, i think i am using the same 5v supply, and then running that through a 20mA regulator thingy and then to the power pole on the switch. From there I ran a wire from each of the 5 switched poles to the anode on each LED, and then connected all of the grounds together and sent those somewhere. Maybe I was smart and used 12v for the LEDs, but 5 years ago, I wasn't smart, just lucky. The gauge is my afr and has nothing to do with the switch. Just there cuz I don't like round gauge pods all over the place.

User avatar
Wally
Posts: 4027
Joined: Mon Oct 28, 2002 3:01 am
Location: Netherlands, Europe

Re: Electronic and Manual Boost Controls

Post by Wally » Sun May 27, 2018 1:21 am

Thats incredably subtle! WTG Chip!

User avatar
Chip Birks
Posts: 2981
Joined: Wed Mar 12, 2008 7:59 pm
Location: Pleasant Grove, Utah

Re: Electronic and Manual Boost Controls

Post by Chip Birks » Sun May 27, 2018 10:21 am

Thanks Wally! Its actually on the list to be replaced by something a little cooler. I'm going to get rid of the wideband controlling that gauge eventually. I've got another display I'll use to hopefully show the average afr. Gonna take some different wiring, and thats a project for another season. Here's a quick video to show the finished product as it looks now.
https://youtu.be/SLR9MsNHZIw

User avatar
buguy
Posts: 1605
Joined: Wed Jan 26, 2005 11:53 pm
Location: Port Orange, FL

Re: Electronic and Manual Boost Controls

Post by buguy » Sun May 27, 2018 12:16 pm

I love it!

64 sunroof
Posts: 20
Joined: Wed Mar 05, 2008 3:35 am

Re: Electronic and Manual Boost Controls

Post by 64 sunroof » Tue May 29, 2018 6:30 am

I run the DIY autotune solinoid and it has worked great for ~4 years so far in a quite hot engine bay on my drag car, I also have something similar to Chip on my drag car a AEM 12 point switch using the instructions here : https://sites.google.com/site/sloppywik ... al-a-boost

It works really well 0 is about wastegate (about a psi above which means that you get resolution across the switch rather than only the last few numbers) and 11 is about 30 psi

Post Reply