warm air intake?

[2olforthis]

Has anyone used any type of exhause wrap on their short-ram intake? I opened the hood on my 99V6 the other day and felt the intake tube of my injen and it was almost too hot to touch. If the intake is that hot, I can only imagine the temp of the air being affected as it runs through. I've heard that the exhaust wrap will help to keep heat in but will it have the same ability to prevent heat intrusion from the outside? Now the the weather is warm, the benefit of short-ram seems to be wearing thin. Any advice would be appreciated.

[Ruffrydasean]

Transform into a cold air intake, by getting the extension...

[2olforthis]

Cold air is fine but if that same air is being warmed as it runs throught the radiated heat of the intake - where's the benefit. What I'm looking to do is protect the temperature of the air all the way through the intake. That would mean insulation that protects from heat intrusion from the engine bay. Has anyone done this effectively?

[CDub LXi]

Originally Posted by 2olforthis

Cold air is fine but if that same air is being warmed as it runs throught the radiated heat of the intake - where's the benefit. What I'm looking to do is protect the temperature of the air all the way through the intake. That would mean insulation that protects from heat intrusion from the engine bay. Has anyone done this effectively?

Most good intakes have ceramic paint that protects against heat somewhat. I know AEM does this... but I don't think they make an intake for Camrys. I could be wrong though.

[BlueFusion6851]

if you wanted to you could get ceramic paint and DIY, or you could wrap it with insulation

[Ruffrydasean]

I coulda swore the reason why the air is warm for the short ram is because the filter is out in the open, so it's gathering all the engine heat as well as any incoming air.

Where as the CAI would have somewhat cooler air because its placed farther away from the engine hotspot and bringing in rushing cool air from behind the bumper

[CDub LXi]

Originally Posted by Ruffrydasean

I coulda swore the reason why the air is warm for the short ram is because the filter is out in the open, so it's gathering all the engine heat as well as any incoming air.

Where as the CAI would have somewhat cooler air because its placed farther away from the engine hotspot and bringing in rushing cool air from behind the bumper

You are correct. But the heat is also absorbed from the intake piping too

[Pineapple]

Unless you gonna keep the intake manifold cool, air will get pretty hot there anyway.
Warping a SRI is pointless cause its heating up form hot air in engine bay. If you want cold air, get a CAI and warp it.

[mega87]

Where can ya get an extension for CAI?

[2olforthis]

All good points. Thanks for the feedback. Will probably do CAI with insulation wrap. I would assume that if the exhaust wrap is designed to keep heat in the exhaust, it would probably work on a CAI to reduce absorption of heat through the intake tube. But I could be wrong.

[Toysrme]

If anything, IMHO the hot engine bay air cools parts of the intake.

I think you guys are going about it in the wrong direction.
Ask yourself how to fix the problem this way:
1) What heats the intake?
2) Is it the 120-150*F engine bay air, or the 300*F engine it's sitting on???


It's not the air that makes the intake hot. It's sitting on a hot enigne. If you want to cool it, you need to insulate it from the engine, not the hot engine air.

Wood works, but you normally use phenolic plastic. I made one out of a 3/32" sheet of aircraft ply I had laying around. I just traced the intake gasket with a pen and cut it out with a scroll saw.

I honestly forget the data, I didn't test it much. From what I remember it went from around 85-90C to around 70C. Basically went from scalding hot, to OK to bump into, but you still couldn't hold it and not get burned.
Couldn't tell any change on the gtech... I remember that.