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Old 07-23-2019, 02:12 PM   #33
JANNETTYRACING

 
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Drives: BLUE CAMARO ZL1 1LE M6
Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,453
Quote:
Originally Posted by DorkMissile View Post
Fyi - my tuner wanted it as close to the TB as possible, so it is about 1” behind it on the passenger side (also where Julio from Alky wanted it). Nozzles are 5” ahead of the TB. There is no doubt in my mind that the meth is hitting the sensor.

My tank is the windshield washer tank so the methanol itself is plenty heat soaked, the temps I am seeing should be relevant to the air itself. I know while tuning the top of the intake would be 80ish degrees when touched by hand (and hot prior)
Quote:
Originally Posted by Joshinator99 View Post
Washer tank temp is actually not an issue. The latent heat absorption of the methanol to effect the phase change from liquid to vapor is what soaks up the intake tract heat significantly, *not* the sensible (measurable) temp of the methanol itself. So, yes, your IAT can be below the ambient temp for sure.
That is in an effort to create a fast responding Fail safe.

There is no questing of the fact that the evaporation creates a cooling effect.

What I want to see is the end result as far from the meth nozzle as possible.

What are Cylinders 7-8 seeing for actual IAT.

If you spray liquid on a hot sensor you will quickly evaporate the liquid causing a false reading.

Ted.
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