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Registered:
May 2002
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Inlet Air Temps
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Wed, 01 September 2004 02:29
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Just thought I would get people to post up their inlet air temps (if you have the ability to measure this) in comparison to the ambient air temp in which they are driving.
No need to be uber accurate to 5 decimal places or anything. I am just interested to see and I think others may have an interest in this too.
Post up the driving condition too eg cruising at 100km/h, giving it some berries etc.
I will start:
Ambient Temp 20 degrees celsius, Intake temp 22 degrees celsius (taken at WSID after a run)
Cruising: at 60km/h or more (on and off boost) (without long stops at lights etc) it seems to hold inlet temps at about the same as ambient (just fitted an airbox for the pod with 2 x 3 inch feed ducts)
On the track: Ambient temp approx 10 degrees celsius, inlet temps were a degree or two above ambient (this was before the enclosed air box was fitted and doing 20 minute sessions on boost for most of the time).
Post up your info, doesn't matter if it's turbo, SC or naturally aspirated, all info will be good for comparison.
Cheers.
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Inlet Air Temps
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Wed, 01 September 2004 03:31
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According to my Delco air intake temp sensor situated in the intake manifold, and readout on the Microtech Laptop software.
Intake temp with air filter here http://oz-enet.com.au/~peewee/eng_conv_2/air_filte r.jpg was 65 degC, regardless of driving or idling, and ambient around 20.
Havent had the chance to look at it since installing intake tubing.
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Location:
Lismore, NSW
Registered:
February 2003
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Location:
nth ringwood, Victoria
Registered:
August 2002
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Re: Inlet Air Temps
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Wed, 01 September 2004 07:32
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my last outing at philip island the air temp was mainly 20 degress and the out side was 17c and the 20 is in a airbox the air intake is 400mm off the track thou
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Registered:
June 2003
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Re: Inlet Air Temps
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Wed, 01 September 2004 08:03
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I don't have one on my current car, but I had an na silvia for a couple of months a year or two ago. I got it down to -2 intake temp at wakefield park at 7am in the middle of winter. Dunno what the ambient temp was but it was friggin cold. That reading was taken at about 80km/hr.
-J-
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Location:
Rosanna, Melb
Registered:
June 2002
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Re: Inlet Air Temps
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Wed, 01 September 2004 10:39
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I run a RWDified 4AGZE with the stock cooler front mounted and around 10-11psi thanks to a big pulley. Intake never goes near the extractors.
After some serious thrashing (foot flat most of the way around Morwell HIll climb with no room for cooldown laps) intake temps were getting up to 80. Ambient probably 15-20. Time for a better IC.
Never paid much attention under normal driving.
Hen
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Location:
Melbourne
Registered:
May 2002
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Re: Inlet Air Temps
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Wed, 01 September 2004 17:49
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In traffic, driving along at 60km stopping at every red light as you do, with the car running rich as a pig with ambient temps of above 30 deg the inlet temps sat on about 50-55 deg. Though as soon as you got some boost in the car this would drop about 10 deg.
Since fitted a airbox and put the heat sheilding on the turbo and the zorst i had only had cold weather to compare it in, but the inlet to ambient temps in simmilar road conditions on a cold 15 deg night the inlet temps were more like 20 deg.
Cheers Adam
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Location:
On your mum!
Registered:
May 2002
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Re: Inlet Air Temps
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Wed, 01 September 2004 21:34
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With the stock CT20, no intercooler and about 18 psi I had repeatable runs of 105deg C in the night time 
Current set up goes to about 40-45deg on the dyno with full load/rpm while tuning.
Day to day driving it stays a few degrees above ambient - except when on the expressway it tends to get down to ambient (that was with the cold air box).
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Location:
sunny coast, qld
Registered:
October 2002
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Re: Inlet Air Temps
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Thu, 21 July 2005 00:16
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Thought it may be time for an update on this thread.
14 deg ambient temp, giving it some berries (22psi ), inlet temps at manifold were between 25 and 30. I need to work on this. Don't know about cruising yet. As soon as the car was turned off it went to 51deg! On the dyno it was around 50deg also.
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Location:
Adelaide
Registered:
July 2002
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Re: Inlet Air Temps
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Thu, 21 July 2005 05:02
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stock mr2 side mount i/c running 12-13psi on stock ct26 turbo cruising at 80k/hr intake temps are about 5-10c above ambient
on boost temps climb up to 30-40c above ambient.
have installed a waterspray system but am still sorting out the control device for it, ie not just a when u hit xPSI turn on the water spray, coz i want the water to hit the intercooler and cool it down BEFORE i hit hi boost. looking a using a timer circuit.
so what is a dangerous intake temp level? 80c?
cheers,
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Location:
Colac, Victoria
Registered:
May 2002
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Re: Inlet Air Temps
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Thu, 21 July 2005 09:37
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Gt4 - 15psi - frontmount - as low as 9 degrees intake temp measured 10 CM's from throttle body , and around 13 degrees of late cruising -
Will spike to 30 degrees at idle but rapidly comes down whemn moving
No water injection , or water spray on cooler factored in as yet
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