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View Full Version : Anyone Using A 993 Turbo Tach and Speedo in one?


SportyBug
July 23rd 2010, 17:43
I think one of my biggest gripes about my 1303 is that gauges and dash layout. But I saw a youtube video of a Subaru swapped Bug running a 993 Tach and I think it would look great in the stock dash. It would be interesting to make it work on a stock bug or even a subaru swap later. The big problem I see is that I do not know how to get the speedo signal without a subaru swap or make the tach read correctly for a 4 cylinder engine with or without a subaru swap.

I guess this has lots of functions built into it but if the Speedo, Tach, Odometer and maybe even trip are all that work that would be enough for me

Take a look at 2:28 and mute it (only crappy youtube music here)
http://www.youtube.com/watch?v=WSR-roNVhX0

or here

http://www.911pcar.com/Porsche_Parts/IMG_1118.JPG

project can be found here
http://aussieveedubbers.com/viewtopic.php?tid=66118
http://a391.ac-images.myspacecdn.com/images01/33/l_06b06f0fdfd405ffa1759d75b5f46f6e.jpg

Steve C
July 23rd 2010, 20:52
Hi

Spa from the UK make a combined tacho & speedo, they have US site as well which I've found cheaper at times.

Steve

Sandeep
July 24th 2010, 09:30
LOVE the dash in that beetle :D ..... I'm in the planning stages for my dash and was working on the exact same layout.

993 tach and 7" touch screen. I have a microcontroller interpreting the signals from my S60 pro and passing it through the Innovate Motorsports MTS data chain, on to the 7" touchscreen. 30 selectable data channels :cool:

Sandeep

owdlvr
July 24th 2010, 13:00
Oh...my. I think you have just found my new dash upgrade.

I believe the 993 Tach would use a square wave input signal for the tach, so it's a matter of adjusting the input signal to match. The following unit is a speedometer calibration unit, but the basic premise is the same, and this unit should work on a tach signal. You would need a dwell meter or a known-good 4cyl tach. Hook both it and the 993 up, and adjust the 993 signal to match the dwell meter. Once it's set, it's set. Note that this is a kit, and would require some electronics knowledge to assemble.

http://www.jaycar.com.au/productView.asp?ID=KC5435

Alternatively you could install a potentiometer yourself...or we could be lucky and the 993 has one already http://www.mindspring.com/~jayk3/toyota/tachmod.htm

For the speedometer, the 993 is going to use an electronic input, which you can easily duplicate. You will, however, need a second speedometer adjustment unit as the "pulses per mile" off your bug setup is sure to be different from whatever Porsche was using. For a speedometer sensor this mount and hall-sender ring is the hottest setup I've found so far, and will be installing on my own bug:

http://www.pacificcustoms.com/mm5/graphics/00000001/ac957810m_2.jpg
http://www.pacificcustoms.com/mm5/merchant.mvc?Screen=PROD&Store_Code=PC&Product_Code=AC957810&Category_Code=featured

http://www.pacificcustoms.com/mm5/merchant.mvc?Screen=PROD&Store_Code=PC&Product_Code=AC957810M&Category_Code=featured

http://www.pacificcustoms.com/mm5/merchant.mvc?Screen=PROD&Store_Code=PC&Product_Code=VDO340020&Category_Code=featured

-Dave

SportyBug
July 24th 2010, 15:05
Interesting, thinking about this last night I remembered seeing a vdo speed sensor box back in 2004 that screwed into our existing speedo cable. Sadly I cant find it anymore. It was on the now dead http://www.customoffroad.com.au/partFull.asp?partid=99
I had written down the VDO part number as 412.009 but I can find it. But I had all so written down that there was something similar available from Summit Racing here in the US. I just havnt found anything there yet


To help you guys out here is where I found more info on this 993 turbo tach, its features and even how to wire it up to a non turbo 993
http://p-car.com/diy/obc/
If you beat me to it maybe you can put together an article for GL, I am a grad student (poor) after all

SportyBug
July 24th 2010, 15:20
Looking at the Pacific Customs site I found just what I was talking about...
http://www.pacificcustoms.com/mm5/graphics/00000001/ac957800_2.jpg
http://www.pacificcustoms.com/mm5/merchant.mvc?Screen=PROD&Store_Code=PC&Product_Code=AC957800&Category_Code=featured

And this is the Summit Racing thing...
http://static.summitracing.com/global/images/prod/large/vdo-340011_w.jpg
http://www.summitracing.com/parts/VDO-340011/?rtype=10

It would work for guys like me with Supers cause my speedo cable is two pieces with a box in the middle that does who knows what. I think it was for a mileage reminder light that never worked. So I could easily replace it with this. People without this weird box would have to find a couple to connect the two.

SuperRSi
December 16th 2010, 14:35
Looks like Pacific Customs does not want us to look at their products, or buy them!

KAFUR1
December 16th 2010, 15:50
Wow did you see thats guys blacked out fuchs :rockon:

KAFUR1
December 18th 2010, 00:06
I think one of my biggest gripes about my 1303 is that gauges and dash layout. But I saw a youtube video of a Subaru swapped Bug running a 993 Tach and I think it would look great in the stock dash. It would be interesting to make it work on a stock bug or even a subaru swap later. The big problem I see is that I do not know how to get the speedo signal without a subaru swap or make the tach read correctly for a 4 cylinder engine with or without a subaru swap.

I guess this has lots of functions built into it but if the Speedo, Tach, Odometer and maybe even trip are all that work that would be enough for me

Take a look at 2:28 and mute it (only crappy youtube music here)
http://www.youtube.com/watch?v=WSR-roNVhX0

or here

http://www.911pcar.com/Porsche_Parts/IMG_1118.JPG

project can be found here
http://aussieveedubbers.com/viewtopic.php?tid=66118
http://a391.ac-images.myspacecdn.com/images01/33/l_06b06f0fdfd405ffa1759d75b5f46f6e.jpg
DUDE ARE YOU CRAZY! You dont know CLUTCH WoW Take the Shackels off your mind! Pehsha....

redhot
December 18th 2010, 07:41
If anyone started offering complete kits for these things... .I whish!

What can one do on a standard to have a speedo-input?

Steve C
December 18th 2010, 09:08
Hi

VDO make a sender that connects to a speedo cable, it will operate a digital speedo.

I have a Spa combined tacho and speedo for one of my 1303s. The other 1303 I've fitted a Spa speedo, I fitted this speedo because with a smaller steering t wheel I couldn't the top of the speedo. Both these speedos use a hall affect sensor on the front wheel

Steve