Intake Air Temp 3.5 Ego - Ford F150 Forum - Community of Ford Truck Fans

Topic Sponsor
Performance, Tuning, and (LEGAL) Racing Post discussions about increasing performance, capabilities, and racing. ****WARNING**** Street racing or illegal activities will be removed and potential bans will be handed out.

Intake Air Temp 3.5 Ego

Old 08-10-2018, 01:12 PM
  #1  
Sociopath Truckdriver
Thread Starter
 
johnday's Avatar
 
Join Date: Jun 2014
Location: Barton City Michigan
Posts: 10,445
Thanked 1,902 Times in 1,605 Posts
Default Intake Air Temp 3.5 Ego

I modified a 5.0 lower grille and installed it on my 3.5, by cutting out the areas between the fake louvers.
I'm NOT concerned with engine, CAC, turbo meltdown.
I would like to know from you guys that watch temp, what you would think an excessively high temp would be. I've seen 120F, 60-65MPH and mid 70F ambient. Should have monitored that temp before I changed out grilles, but didn't.
BTW, it's being read on an NGauge, as IAT2. Running an MPT 93PRX tune as well.

Last edited by johnday; 08-10-2018 at 01:17 PM.
johnday is online now  
Old 08-12-2018, 04:19 PM
  #2  
Senior Member
 
Join Date: Sep 2017
Posts: 478
Thanked 138 Times in 90 Posts
Default

I have always seen 5-10degC higher than the outside temperature when driving at speed.... when sitting idling parked in the vehicle on a hot day i see as high as 50C Boost Air Temps
Thugzy is offline  
The Following User Says Thank You to Thugzy For This Useful Post:
johnday (08-12-2018)
Old 08-12-2018, 09:17 PM
  #3  
Sociopath Truckdriver
Thread Starter
 
johnday's Avatar
 
Join Date: Jun 2014
Location: Barton City Michigan
Posts: 10,445
Thanked 1,902 Times in 1,605 Posts
Default

Originally Posted by Thugzy View Post
I have always seen 5-10degC higher than the outside temperature when driving at speed.... when sitting idling parked in the vehicle on a hot day i see as high as 50C Boost Air Temps
Great, looks like I'm still in the ballpark then. I just ran 120 miles at 75+MPH, 77F temp, and the intake temp pretty much stayed between 103-112F. Appears I'm going to be fine.
Ya, that temp comes up pretty quick when you're not moving too.
Thanks for the reply.
johnday is online now  
Old 08-14-2018, 04:03 PM
  #4  
Senior Member
 
Join Date: Feb 2015
Posts: 1,028
Thanked 176 Times in 140 Posts
Default

Yes, my temp, even with an aftermarket intercooler, still sits higher than ambient. I think some of it has to due with heatsoak of the TMAP sensor since its bolted direct to the manifold. On my stock intercooler I would see 190F+ while towing big grades.

That said, I believe the ECU does start to run into load limiters at around the 120F range, at least thats what I remember seeing in my 2014 tune on HP tuners. not sure on the newer trucks.
mass-hole is offline  
The Following User Says Thank You to mass-hole For This Useful Post:
johnday (08-14-2018)
Old 08-14-2018, 04:11 PM
  #5  
Ezekiel 25:17
iTrader: (1)
 
UNBROKEN's Avatar
 
Join Date: Dec 2016
Location: Houston
Posts: 2,833
Thanked 1,042 Times in 668 Posts
Default

I’ve watched IAT’s on my blown 5.0 with both the EB insert and a 5.0 insert modded the same as yours...I see absolutely zero difference between the 2.
UNBROKEN is online now  
The Following User Says Thank You to UNBROKEN For This Useful Post:
johnday (08-14-2018)
Old 08-14-2018, 04:13 PM
  #6  
Junior Member
 
Join Date: Apr 2018
Posts: 8
Thanks: 0
Thanked 5 Times in 4 Posts
Default

Before the FR FMIC, Cali heat, 120-160 range easily. After, normal is 125 cruising 70 in 100 degree weather, quite the difference.
Biglipps66 is offline  
The Following User Says Thank You to Biglipps66 For This Useful Post:
johnday (08-14-2018)
Old 08-14-2018, 04:51 PM
  #7  
Sociopath Truckdriver
Thread Starter
 
johnday's Avatar
 
Join Date: Jun 2014
Location: Barton City Michigan
Posts: 10,445
Thanked 1,902 Times in 1,605 Posts
Default

Thanks guys, all good info. I didn't take into consideration any load limitations due to IAT. Appears I'm going to be alright, but looking into the limiting, might be a good thing. Anyone might know where I could start looking?
johnday is online now  
Old 08-14-2018, 06:38 PM
  #8  
Senior Member
 
Join Date: Feb 2015
Posts: 1,028
Thanked 176 Times in 140 Posts
Default

Originally Posted by johnday View Post
Thanks guys, all good info. I didn't take into consideration any load limitations due to IAT. Appears I'm going to be alright, but looking into the limiting, might be a good thing. Anyone might know where I could start looking?
Buy HP Tuners and open your tune file? Thats how I managed it. It was a limiter to help prevent LSPI if I recall. My PC blew up and I havent had a chance to reload HP Tuners to look.

I know that with the stock intercooler the truck lost a lot of power during long/steep climbs while towing. It would get hot and start pulling timing and power and eventually would have to drop all the way to 3rd gear which is not typical. It generally could pull any hill in 4th without much effort.
mass-hole is offline  
The Following User Says Thank You to mass-hole For This Useful Post:
johnday (08-14-2018)
Old 08-14-2018, 07:14 PM
  #9  
Sociopath Truckdriver
Thread Starter
 
johnday's Avatar
 
Join Date: Jun 2014
Location: Barton City Michigan
Posts: 10,445
Thanked 1,902 Times in 1,605 Posts
Default

No wonder you went to an aftermarket CAC. As it happens, I have the nGauge, guess I'll look around and maybe call MPT if I can't find what I want.
Thanks.
johnday is online now  


Thread Tools
Search this Thread
Quick Reply: Intake Air Temp 3.5 Ego


Contact Us Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: