I am just trying to get a good feel for what everyone's IAT's are while cruising around. It has been hot to death outside (95-97) Deg around here lately and during a good heatsoak I am reading damn near 150 Deg which I will not boost on.
I am also reading 95-110 at night (75 Deg out) while cruising and 115-125 while cruising during the day (95 Deg out). During a hard pull the IAT's get cooler for a few degrees before climbing up higher than they were before the pull.

I plan on fabbing up a 4" CAI to run out into my front bumper to draw in non-underhood air as I am not happy even with the 95-110 Deg readings, hoping the CAI will have a dramatic effect on IAT's for the better. I already have my Manifold, DP and DumpTube DEI wrapped/sprayed and that helped out tremendously with underhood heat, but I am still not satisfied.

 

Your temps seem about par with mine with this damn weather. I can't lie i've been driving my Acura CL because the AC is so much stronger. In bama it went from 70F weather to 95F for weeks overnight...

 

The temp readings you are getting are very skewed if you're going by a manifold mounted honda temp sensor. They heat soak really bad and are very slow to respond to changes.

Regardless, a cold air intake will help slightly, but the temp sensor probably won't even pick it up due to being heatsoaked in the manifold.

 

Yea I am aware of the shitty OEM sensor, isnt the OEM sample rate like only once every 10-15 seconds? I had a AEM IAT that I tried to use with my EMS software but it is not compatible. I would like to install an aftermarket IAT on my endtank but I have not found one with a 0-5v output yet.

 

Air temp sensors don't work that way, that's why you haven't found one. Unless you find some sort of "processor" box type of thing that will convert the air temp readings to a 0-5v signal, it's not going to work on a 5v input.

 

gotcha guess that ends my search....lol Your basically refering to a low temp thermocouple and amplifier correct? Or are you refering to a device that will covert resisted voltage into a voltage output?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">The temp readings you are getting are very skewed if you're going by a manifold mounted honda temp sensor. They heat soak really bad and are very slow to respond to changes.

Regardless, a cold air intake will help slightly, but the temp sensor probably won't even pick it up due to being heatsoaked in the manifold.

</TD></TR></TABLE>

Is it best to move the sensor to the intake pipe, say just before the TB?

 

spa technique makes a intercooler in/out temperature gauge

http://www.spatechnique.com/pr...4|407

 

yea for $500 lol

 

Why couldnt you use a EGT in the manifold? I would be easy to drill and tap the hole and it responds quickly and is accurate. You can also get a unit with a 0-5v output for datalogging. This is the one I use. I dont datalog with it but it has that capability.

All you need is this
http://auberins.com/index.php?...id=65
http://auberins.com/index.php?...id=69

 

AEM IAT sensor mounted on charge pipe, aem ems, gt3076R turbo 10-12psi im usually anywhere from 90-110 degrees, i have a pretty large apexi GT spec intercooler which is like 30x11x3. before that i had PWR core that was 26x6x2.5 and i was always between 140-155 degrees so i ditched it and went for the larger apexi unit.


Crx Jimmy: we are all talking about IAT not EGT

 

I think he meant use a egt as an iat. It reads temp right?

 

mine are a little higher. damn thing was like 130-140 sitting in the lanes at the track but gets down to between 100 and 110 by the end of the run.

on normal driving im seeing around 100-110 or so. this is off my neptune datalogs

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ludman95 &raquo;</TD></TR><TR><TD CLASS="quote">I think he meant use a egt as an iat. It reads temp right? </TD></TR></TABLE>

i dunno he said<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Crx Jimmy &raquo;</TD></TR><TR><TD CLASS="quote">Why couldnt you use a EGT in the manifold?</TD></TR></TABLE>

i thought he meant turbo manifold... i could be wrong...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackeg &raquo;</TD></TR><TR><TD CLASS="quote">mine are a little higher. damn thing was like 130-140 sitting in the lanes at the track but gets down to between 100 and 110 by the end of the run.

on normal driving im seeing around 100-110 or so. this is off my neptune datalogs</TD></TR></TABLE>

your are reading 100-110 while driving in the recent heat?

 

i live in northern Michigan and even on an 80 degree gay i havent see above 100 degrees unless i let it sit. but as soon as i start driving around it drops back in to the 80's - 90's but we will see once summer really sets in. i have mine mounted in the charge piping, i used a stock sensor i welded a aluminum bung in my charge piping, and found a threaded fitting that was like a reducer like 3/4 to 1/4 or something npt fitting and then i put the stock sensor in it and sealed/ glued it in there with some epoxy and it works great!! i have an extra one and can make more if people want or make your own!

 

wow my intake manifold must be working then because on a 95-100 degree day, im getting about 74 degrees on my stock honda unit

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mrbsponge &raquo;</TD></TR><TR><TD CLASS="quote">wow my intake manifold must be working then because on a 95-100 degree day, im getting about 74 degrees on my stock honda unit</TD></TR></TABLE>

huh? since when did the intake manifold cool the intake air, im confused

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">

huh? since when did the intake manifold cool the intake air, im confused </TD></TR></TABLE>

Read above, the stock IAT sensor mounted on the IM gets heat soaked, which automatically throws the reading off. My 150deg temp may very well be only 110deg if it was mounted on the charge pipe or intercooler. I am assuming he (mrbsponge) has an AIR or some other exotic manifold that is less prone to heat soak.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 96 GSR-T &raquo;</TD></TR><TR><TD CLASS="quote">

Read above, the stock IAT sensor mounted on the IM gets heat soaked, which automatically throws the reading off. My 150deg temp may very well be only 110deg if it was mounted on the charge pipe or intercooler. I am assuming he (mrbsponge) has an AIR or some other exotic manifold that is less prone to heat soak.</TD></TR></TABLE>

i dont need to read above, i'm familiar with the stock location of the factory iat sensor and its headsoak issues, thats why i got the aem one on my charge pipe. i can also guess he may have an air or something else but there is no way to know as its not mentioned with manifold he has.

 

mine is mounted on my victorx manifold, this morning it was 55 degrees outside, my ect never went above 180 and my iat's were around 80 most i saw on the logs were 88

has anyone ever tried to make one of those gaskets like the hondata intake manifold gasket, only for the iat?

and is there a definet difference (back to back testing maybe) between a manfiold and charge pipe mounted iat? i work at a machine shop and could mfg a charge pipe adapter to mount an iat if it was feasable.....

 

While doing road course driving with my turbo hatch awhile ago with the AIR manifold, i was seeing about ambient to a little above ambient temps with the stock ecu and stock honda air temp sensor. The carbon manifold doesnt retain heat barely at all, and it reflects in the air temp sensor readings.

Personally i dislike the stock honda air temp sensors. Whenever i do aem anymore i use the gm/aem iat sensor. There is a big difference in accuracy and response.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted hybrid &raquo;</TD></TR><TR><TD CLASS="quote">While doing road course driving with my turbo hatch awhile ago with the AIR manifold, i was seeing about ambient to a little above ambient temps with the stock ecu and stock honda air temp sensor. The carbon manifold doesnt retain heat barely at all, and it reflects in the air temp sensor readings.

Personally i dislike the stock honda air temp sensors. Whenever i do aem anymore i use the gm/aem iat sensor. There is a big difference in accuracy and response.</TD></TR></TABLE>
so with that being said, then a thermal barrier between the manifold and iat sensor should yield similiar results right?

anyone know what the material is that they make the intake manifold gasket/thermal barriers from? im sure my local plastics supplier has some, i would like to make one and see what it does....

 

am i seeing those prices right that its like 125$ for an egt gauge?? Thats damn cheap.

 

I don't believe a gasket is going to help your readings. When the manifold is heatsoaked it is in turn heating the air inside of it. That is where the higher temp is comming from. Regardless where the sensor is or what it is reading, the manifold will still be hindering performance. Just my 2 cents.