Swain Tech Coated TSP Downpipe w/ Thermal Heat Insulation

[blueroadster]

Thanks...Reading and thinking some more, I am going to install the coated downpipe using the OEM heat shields with the PTP hybrid turbo blanket and run that setup for a while.

I'll hold off on installing the PTP hybrid downpipe blanket for the time being.

Sponsored

 

[blueroadster]

Overthinking I guess where I changed my mind again. I have the PTP hybrid turbo blanket and PTP hybrid downpipe blanket. I am going to install the downpipe blanket and skip the turbo blanket. Reason being is twofold:

1. The downpipe has a much larger surface area where heat radiates to other components and increases under hood temps. The OEM downpipe weighs ~23 pounds where the coated TSP downpipe weighs ~13.5 pounds (much less thermal mass to heat and cool down).
2. With the downpipe insulated, I think adding the PTP hybrid turbo blanket may be a bit too much since the OEM turbo is water and air cooled. Adding the turbo blanket would completely cover the turbine side where it will run hotter and not be able to shed heat via airflow around it. Instead, the additional and trapped heat would likely result in increased thermal transfer to the head.

That said, I believe the best option for me is to use the PTP hybrid downpipe blanket and replace the top OEM heat shield with this one from Dream Automotive. Using that shield would still allow for the turbo to be air cooled. It would also look more clean by providing coverage extending over the downpipe flange and top portion of the downpipe blanket.

 

[blueroadster]

 

[Rhorn]

Is there any solid metrics that would indicate doing this is effective?

 

[blueroadster]

Is there any solid metrics that would indicate doing this is effective?

Some things to ponder/consider...The OEM downpipe weighs ~23 pounds and has shielding only on the front side so a lot of heat is stored and radiated towards the block/under hood. Here is a PIC and additional ones can be found here.

A big thank you to @Bpebler for checking various temperatures. Here are two pertinent posts that he shared on integraforums.com:

Temp measurements using PTP hybrid turbo blanket with lava downpipe blanket

Temps with PTP hybrid downpipe blanket

PICs without clicking links:

PTP hybrid downpipe blanket:

 

[blueroadster]

Another forum member sent me this PIC of the Dream Automotive heat shield (direct replacement for the OEM turbo heat shield) installed over the PTP hybrid downpipe blanket:

 

[blueroadster]

I do however think it is a shame that the PTP hybrid downpipe blanket and Dream Automotive heat shield together cost just as much as the downpipe itself. Cry once I guess...

Sponsored