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Old 09-30-2001, 12:02 AM   #1
subachad
Scooby Specialist
 
Member#: 8488
Join Date: Jul 2001
Location: Sin City
Vehicle:
1993 Impreza GCStyle
Teal

Default Max intake temp??

Hi All,

I just got my new thermometer today and have been taking some measurements.

What I'm wondering is, when you exceed the maximum compressor efficiency of a turbo it goes into like a "subsonic" mode where it just heats the air up and you start losing hp. A 300zx hits this around 12 PSI of boost.

What I want to know, what is the maximum an intake temperature can be before I start LOSING horsepower?

My max temp at the throttle body hit 67 degrees C at 5psi with no intercooler. I have other numbers as well, but I don't want to make this into a novel.

Chad
93 1.8T

Here's the results if anyone's interested

http://www.uniquemotorsports.com/sub...mperatures.htm
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Last edited by subachad; 09-30-2001 at 01:34 AM.
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