Now what could I be up too with this doo-dad....

[fast_a2_20v]

Just whipped this little guy up tonight and tested it... Gonna let you guys guess what it is for. 


One photo transistor... One high intensity IR LED. Some stuff lurking under the heat shrink...

Hmmmm... If this was for show, why would I have used that shielded cable.

Ok here comes some more hints:

It goes in a precarious location.
Its often windy there.
Only thing missing from the pics is a small paintbrush and a can of white, and a can of matte black paint.

 

[Jeronkie]

I would go for (looking at the components) lazer jamming device or some thing similar

[elitedübs]

going in for turbo pics?

[Dubmekanik]

Is there a pic somewhere?

[Dizzy]

I know, I know. 

[fast_a2_20v]

Whoa this forum went down and got restored from a backup i'd say!

Anyways, a refresher for anyone new:

This sensor is an optical (infrared) sensor to read the shaft speed of a turbocharger. The nut on the turbocharger gets painted black and white.

Logging rpm's via standalone. 

[elitedübs]

Whoa this forum went down and got restored from a backup i'd say!

Yeah, we had some issues friday morning and we lost a few posts and threads.

[fast_a2_20v]

Yea I remember the dissapearing links. First time it happened I thought I was crazy. lol

[bobqzzi]

Whoa this forum went down and got restored from a backup i'd say!

Anyways, a refresher for anyone new:

This sensor is an optical (infrared) sensor to read the shaft speed of a turbocharger. The nut on the turbocharger gets painted black and white.

Logging rpm's via standalone. 

I'll be interested to see how you mount it.  If it works, you'll need to make me one.

[transient]

I could see your turbo going on a "light" diet in the near future..

... sorry for the horrible pun

[bobqzzi]

... sorry for the horrible pun

is there any other kind?

It's okay though, I'm an English teacher

[fast_a2_20v]

Sorry guys, just bolting the damn turbo back on the car with the manifold / engine in the car has proven time consuming enough. 2 special bolts, and 3 special tools, and 4 hours later its finally back in. Never build a setup with a 5 bolt t3 housing where the only access to the bolts is directly from the "top" if you will facing striaght down on the t3 flange.

Bob i'm going to build a shorty inlet pipe, basically 4" piece of 4" OD tube. I'm going to take some 1/4" ID or so tube and bend it so it comes out the side, fishes down in where it needs to be, and hooks over at the last second to read the side of the nut. I will of course make it so that it clears the wheel / nut under all circumstances.

Thinking I might insert the sensor and then attempt to crimp the end so that the sensor is held captive regardless, then possibly fill the tube with a low viscosity epoxy that will run down the length of the tube and hold everything stiff.

Haven't decided if it will be held on with just a silicone or a few bolts or what. The main reason for doing it this way as upposed to a probe through the lip on the housing itself is of course the turbo isn't really permenantly modified except for a bit of paint.

-Pete

[talx]

this looks like a nice kit but 600 GBP

http://www.owendevelopments.co.uk/products/product-detail.asp?prodId=21&imgId=b

[transient]

Remembered this from a long time ago..

Ran into this sensor at work:
http://www.micro-epsilon.com/en/Sensors/turboSPEED-DZ135/

maybe this is a better alternative than LED's?  I think it's expensive though.. and analog..