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Go Back   TDIClub Forums > VW TDI Discussion Areas > TDI Power Enhancements

TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

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Old February 8th, 2000, 12:18   #1
Karl Roenick
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Join Date: Sep 1999
Location: Clifton Park, NY, US
Default Put The EGR System to Good Use - Fit an EGT Probe On It

There seems to be enough plumbing back there that a tap should be able to be made, (pre-cooler), for an EGT probe.

Waddya think
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Old February 8th, 2000, 12:31   #2
HowardZ
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Default Re: Put The EGR System to Good Use - Fit an EGT Probe On It

Karl, you may not realize this, but the water antifreeze in the radiator also goes to a special EGR Cooler. The exhaust gases coming from the exhaust manifuld to the EGR valve pass through this EGR Cooler.

So I think you need to tap the exhaust temperature at the exhaust manifold or just before the exhaust enters the turbo charger.
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Old February 8th, 2000, 12:41   #3
Karl Roenick
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Default Re: Put The EGR System to Good Use - Fit an EGT Probe On It

I was thinking pre-cooler, Howard.
I don't know how true the temps would be the farther the egr pipe gets from its manifold beginning, however. When is EGT highest and when is EGR flow least? If they coincide, you'd have to get your temp probe close to the egr pipe connection. Maybe just a saddle on the egr pipe close to the manifold without penetration.

Drilling a bung into the manifold for an egt probe seems problematic (ie, costly, esp if you remove it)
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Old February 8th, 2000, 14:03   #4
mickey
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Default Re: Put The EGR System to Good Use - Fit an EGT Probe On It

SkyPup mentioned "wrapping" a probe on the exhaust in an e-mail. Is there a reliable, accurate probe that just attaches to the outside of the pipe? That would be ideal, but it seems unlikely to me.

-mickey
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Old February 8th, 2000, 14:13   #5
Karl Roenick
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Join Date: Sep 1999
Location: Clifton Park, NY, US
Default Re: Put The EGR System to Good Use - Fit an EGT Probe On It

I THINK VDO has a band that wraps around a pipe. I think you still have to drill a hole for the probe but you don't have to weld a bung. The strap holds it in place. The guy at SPA said the method is good enough for aviation.

------------------
Yellow 2000 Beetle
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