Under hood temps?

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  #16  
Old 08-30-2005 | 08:43 AM
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From: Aggieland, TX
Originally Posted by Faster150
different air content and moisture content in cali then in texas.. also it gets hotter here...
Not really, it gets pretty hot in CA.
Even so, its not enough of a difference to make a 30+ degree difference in your IATs.
 
  #17  
Old 08-30-2005 | 11:58 AM
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From: Fort Worth,Tx
Originally Posted by B-Man
Upgrade the crack / glue / paint / whatever you are sniffing.

A stock Explorer should be pulling it's air from the factory intake, which would be pulling in the cooler air from outside the truck. MAYBE a couple of degrees over ambient, but no way it was 150F. As far as running 170-180 under the hood, only if you are sitting in the Sahara, with no fan...

If it was reading 150F at the IAT, you have a faulty IAT sensor or a bad computer.

Steve (sscully) once posted a nice write-up about the underhood temps, actually measured and datalogged in his SuperCrew. When the truck was sitting still, the temp would climb some, but, after it started moving the temps would drop to within a degree or two of ambient.

IAT2 temps on the Lightning motor can get in the 150F range, but that is after the supercharger compresses the air.

i thought the temp that the explorer was showing was a bit high as well. but he asured me that its not uncommon for IAT at idle. but im going to get my temp checked today whenever i feel like getting out see if its really a Cold air Intake or a Hot air intake:-p
 
  #18  
Old 08-30-2005 | 02:56 PM
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From: Motor City
Originally Posted by Faster150
go to lowes get some of the aluminum heat sheilding in the heating and insulating isle its lik 15 bucks for like 20 ft or so its aluminum and is what ive seen others use if not u can spend big bucks and get some peel n stick heat sheilding that diesels use. or some header wrap will work to. but open air filter is going to suck in hot air so insulating the outside of the tube wont make much of a difference. intaking air from outside the engine compartment is the best place which is why all fords come stock breathing from the fender or behind the headlight
I don't care much about the air temp... I care about the horrid noise the AF1 emmits at WOT. I'm going to dynamat the hood & heat sheild... but was curious if that isn't enough would I be able to wrap the tube and really quiet it down.
 
  #19  
Old 08-30-2005 | 07:25 PM
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From: Fort Worth,Tx
Originally Posted by dzervit
I don't care much about the air temp... I care about the horrid noise the AF1 emmits at WOT. I'm going to dynamat the hood & heat sheild... but was curious if that isn't enough would I be able to wrap the tube and really quiet it down.

if u dont want the loud noise switch to a Volant they have the lowest intake temperatures of all the aftermarket intakes because it uses an air box its also the quietest and arguebly has the most performance gains. due to lower intake temps and increased air velocity.

ps: most of the noise radiates from the filter not the tube... so wrapping it wont do u much good
 
  #20  
Old 08-30-2005 | 08:34 PM
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From what I understand the volant is still loud. It's not the filter that causes the noise, but the sound waves that are created as the air rushes through the filter and down the tube. Putting sound dampening on the heat shield & hood should be a great start but I may take the extra step and wrap the tube...
 
  #21  
Old 08-30-2005 | 11:15 PM
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From: Fort Worth,Tx
yes if u insulate under the hood and around the filter it will bring the noise levels down but also trap in under hood heat and cause intake temps to rise and fuel milage and performance to go down
 
  #22  
Old 08-31-2005 | 10:22 AM
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From: Motor City
If I insulate around the filter it will keep the hotter engine temp away from the filter reducing intake temps... as for the entire hood, that will increase engine bay temps, but I might skirt around all this by using a liquid sound deadener.
 
  #23  
Old 08-31-2005 | 11:42 AM
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From: Fort Worth,Tx
Originally Posted by dzervit
If I insulate around the filter it will keep the hotter engine temp away from the filter reducing intake temps... as for the entire hood, that will increase engine bay temps, but I might skirt around all this by using a liquid sound deadener.

alotta time and money to invest just for a noise u can do away with by turning radio up:-p
 
  #24  
Old 08-31-2005 | 12:07 PM
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From: Motor City
Originally Posted by Faster150
alotta time and money to invest just for a noise u can do away with by turning radio up:-p
If it was only that easy... I want to shut up the intake so I can hear the sweet exhaust note.
 
  #25  
Old 08-31-2005 | 12:10 PM
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From: San Antonio Tx
Originally Posted by dzervit
If it was only that easy... I want to shut up the intake so I can hear the sweet exhaust note.
uh take it off goober! I say go back to stock intake and buy the x-cal, much bigger gains anyway. Just my .02 so there.
 
  #26  
Old 08-31-2005 | 12:11 PM
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From: Georgia on my mind...

If I were to guess, I'd say they'd peak at around 300 degrees or so at hot idle. It's about 90 degrees here today, if I remember, I'll find something idling out in the shop and take a few reading with my IR thermometer.
 




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