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jpnovak's Avatar
 
Join Date: Apr 2000
Location: Austin, TX
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EFI conversio - TPS and the 3.2 Manifold

I am helping to install an EFI conversion to replace CIS on a 930. We are using the 3.2 manifold to help increase flow.

I know I have seen a TPS that is a direct fit for the WOT switch on the throttle body of the 3.2 manifold. I can not seem to find the part number or thread that had this information despite quite a bit of time in the archives.

Please let me know if you have any suggestions or help.

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Jamie - I can explain it to you. But I can not understand it for you.
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Old 08-13-2010, 04:40 AM
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I'm sure you're familiar with the DIY-EFI board, you can try there. Also I'd look for BMW information since the Motronic system is shared with many of the older BMW cars.

Hope this helps,
Chuck.H
'89 TurboLookTarga, 320k miles
Old 08-13-2010, 05:24 AM
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Yes, I am familiar with these forums. I seem to recall there was a Volvo part number that was a direct bolt on to the Carrera TB. Maybe I should look at doing the Ford V8 TB swap.

I agree that it will be a standard Bosch part.
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Jamie - I can explain it to you. But I can not understand it for you.
71 911T SWT - Sun and Fun Mobile
72 911T project car. "Minne" - A tangy version of tangerine #projectminne
classicautowerks.com - EFI conversion parts and suspension setups. IG Classicautowerks
Old 08-13-2010, 07:41 AM
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Jamie,

I got this one from Geoffrey at Race Tech Engineering. CCW rotation, as I recall. PN M518-1 for CCW and M518-3 for CW rotation -- as seen from the shaft side of the TPS. I could not find a direct-bolt-on that was analog and not the three-position switch that was OEM on the 3.2.

You will have to fabricate a mount to adapt it to the 3.2 throttle body. I made one from 3/8" phenolic as seen in the picture. JimS made one from aluminum as can be seen in his thread on EFI for a turbo.

EFI and Data Aquisition Specialist - Above the Standards



Brian
Old 08-13-2010, 07:42 AM
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Call Jeff Gamroth @ Rothsport Racing. I think he has a switch and an adapter to make this work. His phone 503 885 9626 PDT.
Old 08-13-2010, 10:20 AM
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I bought mine from Clewett. You will find it on his homepage
Old 08-13-2010, 10:23 AM
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DUK DUK is offline
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Here's some good info on using a 993 sensor.
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Old 08-13-2010, 12:14 PM
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Quote:
Originally Posted by DUK View Post
Here's some good info on using a 993 sensor.
? And where is the info? Would really like to know.
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Kinsley
1980 SC Targa - MS2, EDIS
Old 04-08-2013, 04:33 PM
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Oops. Forgot I was in search mode when I hit reply. Am looking for a TPS option that works for an SC?
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Kinsley
1980 SC Targa - MS2, EDIS
Old 04-08-2013, 04:46 PM
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Maybe this one:

TurboKraft Inc : Throttle Position Sensor Set - Late Models [911 / Turbo EFI Conversi] - $138.00

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Roland

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Old 04-08-2013, 10:54 PM
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