[Redram]

I finally got around to installing the PUG lower intake, and I noticed better throttle response immediately. I did forget to reinstall the formed Styrofoam piece that was sitting on the front portion of the engine. Does this piece have any significance?

 

[200_S_AWD]

Chrysler wouldn't have spent money on it if they didn't think that it was important. It isolates engine heat from the coils, injectors & intake runners. Especially with high underhood temperatures after shutting down a warm engine. The heat soak after shutoff skyrockets the temperatures.
The heat may not damage anything in the short-term, but may boil the fuel in the rails as the pressure drops. You might experience hot restart issue?
It may also help to dampen noise from injectors & lifters.

Introduction to engine bay heat management

A good heat management program can make a huge difference to the performance and reliability of any performance vehicle. With so many products on the market it can be difficult to know where to start, that is why we have put together this guide so that you can decide which options are best for...

nimbusmotorsport.com

 

[Redram]

Chrysler wouldn't have spent money on it if they didn't think that it was important. It isolates engine heat from the coils, injectors & intake runners. Especially with high underhood temperatures after shutting down a warm engine. The heat soak after shutoff skyrockets the temperatures.
The heat may not damage anything in the short-term, but may boil the fuel in the rails as the pressure drops. You might experience hot restart issue?
It may also help to dampen noise from injectors & lifters.

Introduction to engine bay heat management

A good heat management program can make a huge difference to the performance and reliability of any performance vehicle. With so many products on the market it can be difficult to know where to start, that is why we have put together this guide so that you can decide which options are best for...

nimbusmotorsport.com

That all makes sense.
Thank you.

 

[Powerslavepa]

Nazi Censorship!

 

[Redram]

The FOAM is for noise reduction only! Unfortunately, that also means it will trap heat under it. My Camaro had all that on it, and I took it all off. With the foam out, air can get under there, and cool off the inake manifolds, fuel rail, and injectors. Fuel injector coil resistance rises with heat, and effects the performance of the injectors. Taking the foam off, just meant I could hear the injectors, and the high pressure fuel pump at idle, with the radio off.

Leave it out, you're better off, and it will reduce intake air charge temperatures while in motion. Air will be able to get under the lower & upper intake, and over the oil cooler and cool it all down a step. That is good for the intake, and the injectors. The only down side is, you may hear the injectors clicking.

Thanks. I couldn't hear the injectors clicking. I'm satisfied.

 

[Powerslavepa]

Good deal.