http://www.vwdiesel.net/forum/index.php?topic=19438.0


It's a bit of a DIY. Some pic programming, a little circuit board making. If I can do it, so can you!

__________________
-1983 VW Rabbit LS Diesel (5speed, VNT/Giles build)

Interesting, this is using the vac pod actuator. I am working on getting the electronic actuator working. Probably a winter project for me.

__________________
http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

I'll try to integrate engine speed and engine load (vcv on IP for the vac signal for the tranny) as parameters besides boost to control the N75 valve of the TDIs.
Let's see what my buddy develops.

Tom

This is what I am going to with the arduino board I have. Linkage position sensor (85 only) + boost analog signal + tach signal + pyro temp. I have 2 '85 IP's with the rack position sensor which I could use as well but I have a M pump to put on which is an older one, I dont think they have the electronics the om60x pumps did.

__________________
http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

I got into these cars to AVOID electronics.

__________________
1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine

Check out the thread I have on the actuator. If I can get a scope I will have a working controller soon.

__________________
http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

me too.
But to use all the potential of a VTG it needs more than just limit boost.
I installed a vac and boost gauge in my Golf TDI to see how the control works. It is really more and it makes sense.
So, a black box boost and load signal in - PWM out to a vac valve (out of the TDIs) connected to the vac actuator.

Tom

Depending on how fast (as in sampling speed) you need it to be, I may be able to loan you one.

__________________
Your TACH may have a loose connection...I was wondering why your mechanic would be dead one minute then flopping around the next... PanzerSD

i am inspired. i will replace my windsheild... with an intercooler. swedishK

140hz. You in Atlanta? I got one from an old ham around the corner but the thing is 1950s no period graph on the screen.

__________________
http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

I am actually about 5 hours South of you, in GNV. But, we could arrange something. I will take a pict of what I have and make sure at least one of the traces work. Then it is time to find the probes.

It will be a tektronix something-or-another.

__________________
Your TACH may have a loose connection...I was wondering why your mechanic would be dead one minute then flopping around the next... PanzerSD

i am inspired. i will replace my windsheild... with an intercooler. swedishK

Ah I am waiting for bpjenks to return from his arctic safari.

__________________
http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

Anywhoo, the offer has been made. We can pm each other about the details if interested. *Insert dramatic music here*

__________________
Your TACH may have a loose connection...I was wondering why your mechanic would be dead one minute then flopping around the next... PanzerSD

i am inspired. i will replace my windsheild... with an intercooler. swedishK