Subaru Enthusiasts Car Club of the Sierras - View Single Post

MikeK · 2004-10-05, 02:39 PM

My car now has no heat shields on either the up or down pipes. I have chronic heatsoak. If I watch my boost guage, in the first few minutes after starting my car when the engine has warmed up I get around .095 Mpa boost. After 20 minutes of driving in slow traffic the best I can do is about .06 - .07 Mpa. My airconditioner only gets cold on the freeway. On the track day, I could hit about 110 mph at the end of the straight at the start of the session, by the end I couldn't reach 100.

I am ditching my car soon so mine will have the stock heatshields back on, but for a while I was researching what to do about the problem and I came up with the following:

- Get the header ceramic coated
- Get the uppipe and downpipe ceramic coated or wrapped
- Wrap the turbo with this stuff http://www.thermotec.com/products/full/15001/15001.html
- Add a heat shield over the turbo with a chimney that directs the heat away from the intercooler when the car is stationary. Here are two that I found:
Shield 1
Shield 2

From reading on nasioc, people who have taken some of these steps can drive their car hard, then get out and touch the intercooler and it is just warm. If I do that I get instant 3rd degree burns. It also seems that instead of feeling strong some days and weak others, the car will have a more consistant feel to it (and cold airconditioning).

2004-10-05, 02:39 PM	#2
MikeK Captain Turbo Join Date: Feb 2004 Location: Reno Posts: 3,318 Car: 05 STi	My car now has no heat shields on either the up or down pipes. I have chronic heatsoak. If I watch my boost guage, in the first few minutes after starting my car when the engine has warmed up I get around .095 Mpa boost. After 20 minutes of driving in slow traffic the best I can do is about .06 - .07 Mpa. My airconditioner only gets cold on the freeway. On the track day, I could hit about 110 mph at the end of the straight at the start of the session, by the end I couldn't reach 100. I am ditching my car soon so mine will have the stock heatshields back on, but for a while I was researching what to do about the problem and I came up with the following: - Get the header ceramic coated - Get the uppipe and downpipe ceramic coated or wrapped - Wrap the turbo with this stuff http://www.thermotec.com/products/full/15001/15001.html - Add a heat shield over the turbo with a chimney that directs the heat away from the intercooler when the car is stationary. Here are two that I found: Shield 1 Shield 2 From reading on nasioc, people who have taken some of these steps can drive their car hard, then get out and touch the intercooler and it is just warm. If I do that I get instant 3rd degree burns. It also seems that instead of feeling strong some days and weak others, the car will have a more consistant feel to it (and cold airconditioning).