10-21-2016, 05:26 PM
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Join Date: Dec 2015
Posts: 1,442
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I really wanted to put it south of the collector so it could measure a full bank.
The Wideband sensors have to installed a few deg above horiz to prevent moisture wicking that eventually smoke the sensor. The Wideband are not cheap. So rather than cut a hole in the side of the car I elected to use the #2 cyl approx 4" above the sidepipe mating flange (sits at a 45deg angle).
Scoring the pipe with a cutoff wheel will help the bit get it's initial bite without walking.
I had to use use 2 diff Unibits or end up punching the bottom side of the pipe. 7/8" hole.
The return line is required although I've run it with the port open nothing comes out. There is a check valve under the port (saw a youtube video of someone probing the port and wearing gas.) I'm guessing its for if the High press pump has a high press runaway issue...
I used Gates 1/4" line (Ethanol resistant)
[ame]https://www.amazon.com/gp/product/B0002JMFLG/ref=oh_aui_detailpage_o05_s01?ie=UTF8&psc=1[/ame]
Adel clamped it to the inside frame rail all the way back the fuel filler stand pipe. There is a fuel tank vent (1/2" line) that runs from the tank to the top inboard side of the filler pipe. I installed a Brass stepped (1/2 X 1/4 X 1/2)barbed t-fitting and attached the vent at the top as well. (Home Depot)
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