I cant seem to find one. i like the autometer phantom gauges, but i cant find a IAT gauge of any kind. i want to see how effective my meth/water system is.

im sure someone on here cant point me in the right direction.

thanks,
Jeremy

 

If you can find one with the right range a coolant temp gauge will do the same thing. I don't know of any you can use to tap the stock wire with, but a sbc temp sensor would be cheap. Just add an extra sensor.

 

something like this i am sure would work. Just find any temperature guage that has a screw in sensor. you could probably use an oil temperature, tranny temperature, something like that
http://store.summitracing.com/partde...5&autoview=sku

 

I'm pretty sure gm iat and coolant are the same resistance/calibration. I do not know about the others.

 

they are, difference is a coolant temp sensor is encased in the brass housing, IAT is not, it is open element.

 

Mmmhmm.
If you go back to the 80s vehicles (Typhoon is one I know for sure) you can find smoe brass ones with open ends on them. Thats what I am using for IAT now. Screw in type thats just like a coolant sensor.

 

so this would work?
http://store.summitracing.com/partde...5&autoview=sku

i have no idea how much heat a blower creates. would it be necessary to use a 100-250 degree gauge, or would the 40-120 be enough?

ive removed my water-air aftercooler because i think that the meth-water injection is a better choice all around. im running less than 8psi. what do you guys think my air temps will be?

that would be sweet if i could just tap into the wiring of the stock IAT sensor....anyone?

 

I don't know if a gauge calibrated to measure a water/coolant liquid will accurately measure highspeed air...Maybe it can.

Here is a formula you can use to estimate Compressor outlet temp (pre-intercooler). You need to know compressor efficiency which I'll estimate:


Temp.Rise = ((PR^0.28 X Temp.Absolute) - Temp.Absolute) / Eff.

• Temp.Rise = Temperature rise across the compressor
• PR = pressure ratio
• Temp.Absolute = Ambient + 460 in degrees Fahrenheit

Condition 1: 10psi, 80 degrees outside, 72% compressor efficiency.
((1.68^0.28 X 540) - 540) / 0.72 = 117 degrees F
80 + 117 = 197 degrees F outlet temp

Condition 2: 20psi, 80 degrees outside, 65% compressor efficiency.
((2.36^0.28 X 540) - 540) / 0.65 = 226 degrees F
80 + 226 = 306 degrees F outlet temp

The gauge in your link goes to 120 degrees Celsius which is about 250 F. Again, not sure if this type of gage will work for this. It might. But it needs to react fast.

-Scott.

 

Post #7
https://www.camaroz28.com/forums/sho...ercoolerometer

 

pretty cool

 

thats cool. id only really want to know one temp though. what sensor did you use, and would it work when it gets wet with meth/water?

i too had the same concern as "boosted-lt1" about it being accurate when used with air rather than water. i was under the impression that a water temp gauge wasnt accurate unless it was touching the water. maybe i was just thinking that because it obviously wouldnt read the WATER temp correctly....

and good eye on the C, i didnt even notice that. i probably would have gotten it and then realized it was Celsius. so i guess if they are accurate at reading air, then this would do me pretty good...http://store.summitracing.com/partde...5&autoview=sku

 

After those pics were taken, I added an RTV 'cone' around the bare wires. The sensors now work underwater.

 

okay. so are any of you using a water temp gauge (or any gauge for liquid)? if so, does it react quick enough to show the sudden changes i'll see with the meth injection?

thanks,
Jeremy

 

Nope, mine is solid brass looks the same as my coolant temp and has the same pigtail on it lol

Jay

 

you really should change that out to the open element one. the open element one reacts faster to the changing air which you need for a boosted application.