Lining intake boxes with heat resistant material

I've been noticing very high AIT when sitting idle at the drag strip, long traffic lights, etc. I know the temps usually come down once moving, but for the strip I wonder if that hinders the first bit of my run or not. That being said, I'm running the Mishimoto intake which has a metal "heat shield" which is black painted/coated. I notice the metal becomes very hot sitting in the engine bay, and I wonder if it heats the surrounding air by the intake, increasing AIT. As it is a closed box, I'm not concerned about cosmetics inside the box. I had wondered about lining the inner part of the box with exhaust tape of some other head resistant material.

What are your guys' thoughts on lining the inside of the heat shield/box, and thoughts on if it would help reduce idle AIT? What material would be good to use? Is it completely negated once I'm moving and colder air is being fed into the filter?

For the record, we're talking AIT 70*F (40*C) higher than ambient temps when idle.

Thought about doing the same thing. It is brutal here in Florida. I am in stop and go traffic most of the day.

At the drag strip don't run the engine unless you have to... and open the hood in between runs to let that heat out best as possible. No matter the materials, no matter who's intake they will get quite warm sitting idling.

Have been wondering about this too-- interested to see if anyone has done it yet.

I'd be interested is covering my stock air box with black heat resistant material for the Same reason.

CVCashmere

I need to do something for my PMAS "box." I snapped this picture earlier today. Granted, it was 100F and sitting in traffic, but it didn't cool down much when I got up to speed.

I put some heat reflective wrap on the outside of my airbox.

plc268 said:

I need to do something for my PMAS "box." I snapped this picture earlier today. Granted, it was 100F and sitting in traffic, but it didn't cool down much when I got up to speed.

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Damn. I think my hottest has been 158 here in FL.

WildHorse said:

I put some heat reflective wrap on the outside of my airbox.

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Did you see any difference after doing that?

plc268 said:

Did you see any difference after doing that?

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I'll let you know. Been raining here all week, today will be sunny and +30c.. so I'll be cruising later. Usually it's 10 degrees above ambient while driving and 15-20 above ambient while siting in traffic on a plus 30 day.

If you're going to wrap anything with heat reflective tape or something similar it should be the intake tube itself. That should help a bit as you can definitely feel the tube is very hot after opening the hood. You can put a little bit of that reflective stuff right where the airbox sits very closely to the head as that huge chunk of metal surely radiates alot of heat to the box.

I actually just ordered some Thermaflect Tape to wrap the exterior box on the intake I will be installing soon.

https://www.heatshieldproducts.com/automotive/heat-shield-tape-and-fasteners/thermaflect-tape

I am sure most of you guys have done it, but opening up your grill made a huge difference for me. I hogged out ALL the honey combs.

I was actually considering putting the stock box back on before that.

peel & seal (self adhesive butyl rubber with a thick aluminum foil )from blowes or home despot on exterior of airbox, underside of intake tube and spray it with flat black paint. I personally like SEM trim black.

SVT-DADDY said:

I am sure most of you guys have done it, but opening up your grill made a huge difference for me. I hogged out ALL the honey combs.

I was actually considering putting the stock box back on before that.

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What did you use to do that? any pics?