Intake heat shield installed - impressions

[cashcorn]

I filled about a 1/2" of my drain with 500 degree permatex. Can always pull it out if need be(after it dry's). also filled the drain hole in the shield.

[Lightsaber]

It's surprising what a simple intake shield can do, isn't it?? OP I'm so glad you enjoy it and this should be one of the few very great starting mods.

[ViperTony]

I filled about a 1/2" of my drain with 500 degree permatex. Can always pull it out if need be(after it dry's). also filled the drain hole in the shield.

What drain hole in the shield?

[SSGNRDZ_28]

Here is the drain tube being discussed. I wonder if this is something they eliminated for 2014+? It seems like at least a few people did not have one installed on their cars. It can be found online for less than $10.

05038304AA TUBE. Drain



image1.jpg

[Steve M]

Mine actually has a small tear in it...thanks for the part number!

- - - Updated - - -

What drain hole in the shield?

Drain holes are in the corners at the bottom of the main part of the shield.

[ViperGeorge]

I do not remember seeing that drain thingy on the bottom of my air cleaner. Since I've never had the boxes out before would not have known I was missing it without seeing the picture above.

One tip for installation. I had real trouble getting those U-shaped nuts off the radiator bracket. But if you use a small metal putty knife and slide it under the top they come right off.

[SSGNRDZ_28]

Here are some test results from this weekend:

Ambient temp 66 degrees F

With shield
~1 mile at ~3k rpm 2nd gear, ~45MPH 80 degrees F or 14 degrees F over
2 minute idle soak at 109 or 43 over

With Shield, No Drain Plug
~1 mile at ~3k rpm 2nd gear, ~45MPH 84 degrees F or 18 degrees F over
2 minute idle soak at 118 degrees F or 52 degrees F over

No Shield
~1 mile at ~3k rpm 2nd gear, ~45MPH 87 degrees F or 21 degrees F over
2 minute idle soak at 124 degrees F or 58 degrees F over

2008 Coupe. Removed the hood grilles. These were back to back runs on the same road, wind direction, speed, etc.

Throttle and speed play a big part in the IAT. For example, if I went from just cruising at 3k RPM ~15% throttle to a bit more the IAT was only 9 over ambient. I did notice slightly different temps depending on direction due to wind.

Notes:

- The drain plug matters for cooler IAT.

- In this test scenario no timing is being pulled with the shield installed but timing is being pulled without the shield while running.

- When the radiator fans kick on IAT will skyrocket with or without the shield, but the shield keeps temps at a lower level.

- When idling without moving hot air is pulled from in front of the radiator on a 2008 hood. Air will rise from the radiators, into the holes of the hood which feed the intake. You can feel hot air being fed instead of pulling all of the cool air from the outside as might be expected. (an Arrow closeout panel or similar would eliminate this negative side effect at idle, but I suspect this duct work probably has a big “ram” effect of cool air while driving). This needs further investigation!

Thanks
Doug

[SADVIPER]

Sounds intresting, considering this for my 2013.
thx for sharing!

[ViperGeorge]

Here are some test results from this weekend:

Ambient temp 66 degrees F

With shield
~1 mile at ~3k rpm 2nd gear, ~45MPH 80 degrees F or 14 degrees F over
2 minute idle soak at 109 or 43 over

With Shield, No Drain Plug
~1 mile at ~3k rpm 2nd gear, ~45MPH 84 degrees F or 18 degrees F over
2 minute idle soak at 118 degrees F or 52 degrees F over

No Shield
~1 mile at ~3k rpm 2nd gear, ~45MPH 87 degrees F or 21 degrees F over
2 minute idle soak at 124 degrees F or 58 degrees F over

2008 Coupe. Removed the hood grilles. These were back to back runs on the same road, wind direction, speed, etc.

Throttle and speed play a big part in the IAT. For example, if I went from just cruising at 3k RPM ~15% throttle to a bit more the IAT was only 9 over ambient. I did notice slightly different temps depending on direction due to wind.

Notes:

- The drain plug matters for cooler IAT.

- In this test scenario no timing is being pulled with the shield installed but timing is being pulled without the shield while running.

- When the radiator fans kick on IAT will skyrocket with or without the shield, but the shield keeps temps at a lower level.

- When idling without moving hot air is pulled from in front of the radiator on a 2008 hood. Air will rise from the radiators, into the holes of the hood which feed the intake. You can feel hot air being fed instead of pulling all of the cool air from the outside as might be expected. (an Arrow closeout panel or similar would eliminate this negative side effect at idle, but I suspect this duct work probably has a big “ram” effect of cool air while driving). This needs further investigation!

Thanks
Doug

Doug, I wonder if you could run a test. Drape some insulation over the top of the airbox, secure it to the shield and run your runs. I'm wondering if insulation on the top of the airbox might further reduce IATs. What do you think?

[LmeaViper]

Doug, I wonder if you could run a test. Drape some insulation over the top of the airbox, secure it to the shield and run your runs. I'm wondering if insulation on the top of the airbox might further reduce IATs. What do you think?

I was thinking the same thing on the weekend when I contemplating installing my heat shield. I took some temps with my heat probe and observed that the box and intake tubes were very warm.

[SSGNRDZ_28]

Doug, I wonder if you could run a test. Drape some insulation over the top of the airbox, secure it to the shield and run your runs. I'm wondering if insulation on the top of the airbox might further reduce IATs. What do you think?

I was thinking the same thing on the weekend when I contemplating installing my heat shield. I took some temps with my heat probe and observed that the box and intake tubes were very warm.

I have some ideas for extra insulation, I will report when I'm able to test them.

[SSGNRDZ_28]

I just ordered one today. Are you on track for your Aug. 10th shipping date.

Thank you for the order, and yes they are still on track for Aug 10.

Make sure you get the drain tube mentioned above.

Thanks
Doug

[Zybane]

Do I need the drain tube on a 2015? Can I just easily add it later or is it better to do it (access) at the time of shield installation?

[Steve M]

Easy to add later...the airbox is very easy to install/uninstall.

[SSGNRDZ_28]

Do I need the drain tube on a 2015? Can I just easily add it later or is it better to do it (access) at the time of shield installation?

You don't need one but it helps IAT. To install you could just undo the thumb screws and lift the airbox, it would take 2 minutes so it isn't a big deal.

[Voice of Reason]

Quick real world driving test from this evening. Going to a club meeting a friend and I monitored our IATs, his car being stock and mine having the heat shield and a few other things in my signature. Outside temps ranged from 75 down to 57 and at highway speeds my IAT was consistently 8+ over ambient. My friends unshielded car was consistently +9 over ME, so +17 over ambient. These results are without the Gen IV plug so I'm ordering that tomorrow to see how it does. IMO this is a significant difference and worth it. Also we saw no difference in our oil or water temps.

One note though - I have smooth tubes and I think because they are stiffer than the stock accordian tubes when the engine is under load it's causing the air box to torque over a little and the upper heat shield piece to vibrate against the tubular frame piece below it. During a brief stop I noticed the shield resting firmly against that tube below but lifting it slightly I could see that it had signs of vibration and paint wearing off. I'm going to adjust the shield and/or isolate it from the tubular frame with some rubber and retest. Just a small FYI to others in case you hear a noise and you have smooth tubes.

[Jiaim]

Would gold foil under the shield make it even better ? That'd be a simple & stealth upgrade.

[SSGNRDZ_28]

Quick real world driving test from this evening. Going to a club meeting a friend and I monitored our IATs, his car being stock and mine having the heat shield and a few other things in my signature. Outside temps ranged from 75 down to 57 and at highway speeds my IAT was consistently 8+ over ambient. My friends unshielded car was consistently +9 over ME, so +17 over ambient. These results are without the Gen IV plug so I'm ordering that tomorrow to see how it does. IMO this is a significant difference and worth it. Also we saw no difference in our oil or water temps.

One note though - I have smooth tubes and I think because they are stiffer than the stock accordian tubes when the engine is under load it's causing the air box to torque over a little and the upper heat shield piece to vibrate against the tubular frame piece below it. During a brief stop I noticed the shield resting firmly against that tube below but lifting it slightly I could see that it had signs of vibration and paint wearing off. I'm going to adjust the shield and/or isolate it from the tubular frame with some rubber and retest. Just a small FYI to others in case you hear a noise and you have smooth tubes.

Those are some great results, thanks for the testing. In your example your car was not pulling timing but your friends car would have been assuming 75 ambient.

Some foam to protect the finish would not be a bad thing. Since every car is slightly different I would recommend removing the shield after some miles to inspect for marks where the shield is contacting the car. Adding foam in those places would prevent the contact from doing any damage to the finish. See below.

Would gold foil under the shield make it even better ? That'd be a simple & stealth upgrade.

I've ordered some 1/8" Dynaliner which is supposed to provide a level of thermal insulation but is also closed cell and dark gray in color. It is fairly cheap on eBay, ~$40 for a roll. I could see adding this on either side of the shield to further improve the IAT but also to act as a cushion for the scenario stated above.

[timberwolf]

Here's what i did. Upon first cruise I saw a immediate drop in iats over no shield. I also added some heat shielding on the bottom only.. Left the sides clean for nowimage.jpg
I installed this not only for thermal properties but to avoid vibrations and rattling/sawing at various parts underneath the shield

[IndyRon]

Here's what i did. Upon first cruise I saw a immediate drop in iats over no shield. I also added some head shielding on the bottom only.. Left the sides clean for nowimage.jpg
I installed this not only for thermal properties but to avoid vibrations and rattling/sawing at various parts underneath the shield

I like that and can only help. What shielding did you use? Thickness?

[timberwolf]

I like that and can only help. What shielding did you use? Thickness?

Got it here: http://m.summitracing.com/parts/the-...FdUUHwodvXsBBA

[RAY W]

The pictures of the drain plug show that it is installed over a nipple or fitting in the bottom of the box. I do not have any fitting on my air box, only an open hole. Has anyone tried to use the Gen IV plug in the 2014-15 air box ? Will it need to be glued in ?

[Voice of Reason]

I haven't ordered mine yet but it looks like it will fit.

In the interim I've put a thin piece of plastic over the extended drain nipple and secured it with a rubber band. Its a little ghetto but it works and isn't visible, so now only me and my closest internet friends know it's there.

[RAY W]

I haven't ordered mine yet but it looks like it will fit.

In the interim I've put a thin piece of plastic over the extended drain nipple and secured it with a rubber band. Its a little ghetto but it works and isn't visible, so now only me and my closest internet friends know it's there.

There isn't a nipple on the 2014-15 air box. Just about a 1/2"-3/4" diameter hole. Part #05038304AA is good for 2008-2013.

[Voice of Reason]

There isn't a nipple on the 2014-15 air box. Just about a 1/2"-3/4" diameter hole. Part #05038304AA is good for 2008-2013.

Strange, my 13 SRT and 14 TA both have it. Can you post a pic of the bottom of yours? It sounds like it was a mid year 14 change maybe?