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Old 03-23-2017, 01:25 PM   #1
chevy72blu
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Join Date: Apr 2004
Location: Las Vegas, NV
Posts: 2,188
"cold air" intake... What type of IAT Temps are you seeing?

My truck has a '98 F Body LS1 (stock) and a short ram style intake with a conical filter. The intake is just about the upper radiator hose, behind the radiator. Certainly not the best location, but I figured it was no big deal.

Playing with my Torque Pro app (OBD2 bluetooth reader) I routinely see IAT at around 125* (about 50 degrees over ambient) while cruising and higher temps in stop and go. In the summer its well over 100* here, which will push the IAT to 150+. How much power am I really losing here? A "cold air intake" always struck me as a feel good modification (especially when replacing an engineered OEM air box on newer vehicles), but the high temps give me pause.

It would be pretty easy to use a flex coupler - extend the ram and drop the intake nearer to the driver side head light, but something tells me it wont make any noticable difference.

What types of setups are you running and what temps are you seeing? Any dyno or objective numbers?
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'72 C20 SWB convert. 5 lug, LS1/4l60e
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