IAT temps... how hot is too hot? - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 03-04-2016, 06:46 PM   #21
Junior Member
 
Join Date: Aug 2009
Posts: 186
Total Cats: 1
Default

Quote:
Originally Posted by umwhat View Post
Stock, newish Kia, just to use as a reference point.... If a NEW car has somewhat fluctuating IAT that run anywhere from ambient to 'whatever over ambient', then I can extrapolate some of that info to my NB. I also will start monitoring my wife's Kia Soul's intake temps too, just to see if they get so high over ambient.
Just another reference point. My gf's IS300's IAT sensor is always within 10 of ambient. It uses an IAT sensor somewhere behind the radiator, but the intake duct goes over the radiator (like the JR intake).

I can get the IAT within 10* of ambient, but if I wanted to see the actual temps right before the TB to verify and temps shoot up.

Unless I haven't used the proper search terms and I haven't found the proper threads, I suspect the NB1 OEM IAT sensor housing itself heatsoaks. I'm not sure if the GM IAT sensor is used for this reason or another.

As far as ground temps, I find with 100+ ambient temps, ground temps are usually 25* above ambient so it's very difficult to keep IAT within 10*
greeenteeee is offline   Reply With Quote
Old 03-04-2016, 06:49 PM   #22
SADFab Destructive Testing Engineer
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,992
Total Cats: 1,458
Default

GM IAT sensor heat soaks also. The GM sensor is used because it is cheap and has a known calibration curve that the megasquirt is programmed to accept.
aidandj is offline   Reply With Quote
Old 03-06-2016, 12:17 PM   #23
Junior Member
 
Join Date: Aug 2009
Posts: 186
Total Cats: 1
Default

Quote:
Originally Posted by aidandj View Post
GM IAT sensor heat soaks also. The GM sensor is used because it is cheap and has a known calibration curve that the megasquirt is programmed to accept.
MS makes sense. I wonder if the guys here have done testing at the TB vs where their IAT is mounted since it's usually post ID AND out of the engine bay.
greeenteeee is offline   Reply With Quote
 
 
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 11:23 AM.