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      12-18-2016, 06:26 AM   #38
TDIwyse
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Drives: 2011 335d
Join Date: Aug 2012
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Quote:
Originally Posted by Wrecker335d View Post
Been running mine before the sensor. I really don't see a drop in intake temperature while spraying like was claimed.
Interesting. Have you done back to back tests to compare IAT's?

I've had mine before the IAT sensor for >4 years now. Attaching some of the first data comparisons I did when starting to play with the water/methanol injection to show the significant change in behavior. This was data taken on the same day, maybe 5 minutes apart.

I'd actually like to move that IAT sensor further up the charge pipe to allow the water/methanol injection more time to evaporate before the sensor reads the temp. But haven't got around to doing that yet.

A potential problem with having the injector before the IAT sensor is that it's likely lower than your water/methanol tank. So a leaking injector/check valve/solenoid would be at risk for filling up the intake pipe, and then bad things would happen.

I like having the logged IAT reflect the cooling as it makes things like matchbot simulations more accurately reflect what the engine is doing...
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