ZeroBanger

I read alot about the stock sensor being "slow reacting" and being in a location as to "suffer from heat soak".

I installed a highly accurate Nordskog Digital air temp gauge/sensor. The location I chose was under the elbow a couple of inches up from where the coupler attaches from the IC.

I have only had this running since last night so I dont have alot of data, but I found that it reacts exactly as fast as the stock sensor and both sensors show nearly the exact output. I bought this intake gauge along with a digital boost gauge and digital water temp gauge cause the power fc seems to get in the way...but also I wanted to monitor my water injection air temps more....

For what its worth both heatsoak the same. After parking for 40 minutes they were both heatsoaked and the temperature was exact on both sensors.

I'm happy with the location because for my water injection testing its ideal, but I read so much on this forum about relocating the sensor to a place that doesn't heat soak, but i'm not sure if that idea works since the entire engine bay is hot as hell.

Zero.

matty

i liek what i am reading!

HeatTreated

Nice idea. got any pics?

ZeroBanger

I'll take some pics when I get home. Maybe I can take some day and night pics. Here is a linky to see what they look like. They look sick in the fd, I got the digital water temp, intake temp and boost gauge.

http://www.nordskogperformance.net/prodig.html

Wankel7

So what are your tempertures? What kind of temp drops does the WI cause.

James

ZeroBanger

I register a 30-40 degree difference between the sensors under spirited driving. during cruising, they both register the same.

airborne

wow thats contradictory to what seems to be the general belief. way to back up something by doing zero.

btw, waiting on fittings for my WI. HDR didn't have small enough tube fittings for the aquamist hose.

ZeroBanger

Damn, this forum will go down on you like a $2.00 *****!

Yup...I can say that when cruising and the water injection is off both intake sensors are nearly identical. Let the car sit for 30 minutes or what ever and both are heatsoaked about the same.

really it makes sense. Think about it...the hood to your car is closed, the water temps rise do to heatsoak. Open the hood and place your hand in the engine bay its very hot. How the hell is any sensor not going to be heat soaked?

Also, the stock sensor and this one have similar reaction times.

t-von

iTrader: (8)

If the stock air temp sensor is accurate, can the digital sensor it self be purchased and used with the stock sensor? Or do they both come together?

ZeroBanger

the digital gauge requires a special sender, its not compatible.

rotorbrain

so, did i read correctly when you said that there IS a difference between the stock sensor reading and the "new" sensor reading while under acceleration/boost?

paul

ZeroBanger

Paul...

Only because my new sensor is placed prior to the water injection and the stock sensor is after. when I turn the water injection off they are the same.

rotorbrain

ooooooookay, so the new sensor reads a higher temp?

paul

ZeroBanger

um, yea.

93blackrx

that sounds good to me, but, I have a front mount intercooler and I relocated my sensor to just after the outlet of the greddy two row. this location is not close to the major areas that are prone to heat soak. unlike that of a stock mount intercooler. I don't believe that the temperature readings would turn out the same in my car.

did that make any sense?

Matt

ZeroBanger

Do you have a power fc to check? Mine is tapped into plastic at the beginning of the elbow. I would think it would not heatsoak here, but it does.

93blackrx

I do have a power fc and the comander...I am currently doing some fuel mods, but when I get that done I will check temps. I don't have any temps from when it was in the stock location to reference to. but like I said eariler a location that is near or in the case of a stock mount intercooler over the engine is going to heat soak more than that of a front mount.

on a side note: where did you get your materials to build your water injection? you seem to have done a wonderfull job. I was thinking of doing it, but its sounds like a lot of work. I have a j&s, does water injection do basically the same thing? ie, protect from knock but by reducing temps?

Wankel7

So you only notice a 30-40 degree drop in intake temp with water injection running?

What temp is the intake air before the WI and after?

James

911GT2

I assume he's talking celsuis. In which case 40 degress is over 100 degrees farenheit. Which is a considerable change. Zero posted a thread a while back asking if his intake temps were too low, cus he was seeing 20 dC if I remember right under full boost.

7racer

way to go zero! Thanks for dispelling some myths with some good preliminary data...

now if you could just do some detonation testing with some apex seals and some FMIC vs SMIC test we would all be set

rynberg

Even if that temp drop was in Fahrenheit, that would still be a substantial drop......but he is talking Celsius.

1 2 NV

how easy were they to install??? i dont know about that remote sending unit but those are the guages ive been lookin at. they look sweet and are supposed to b very accurate. i wont spend the huge money on the JDM guages.