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RE: Intercooler temps (again)
Interesting stuff.
I have just had to replace the IC radiator in my car because of a leak. GM
(Vauxhall) couldn't supply an OEM replacement, so I had to have one made.
This raised a whole host of questions, regarding capacities, flow rates,
pressures etc. which on-one could answer. Given that the IC dumps heat from
the air in the intake manifold into the water in the IC, and that the heat
has to be dissapated in the radiatior, has anyone ever measured the inlet
and exhaust water temp to / from the radiator, and the water flow rate ?
This should tell you how much heat is being removed from the airstream.
Measuring the temp's should be easy, but I couldn't work out a way of
measuring the flow rate without spending $100 on a flow rate sensor. But
like Mr Nacelp, I am amaised how good the IC is at cooling the intake air.
I just wish there was a simple way of measuring how good it really is.
Ho Hum,
Malcolm Robb, LC 0112G
-----Original Message-----
From: nacelp [SMTP:nacelp@bright.net]
Sent: Friday, May 05, 2000 8:43 PM
To: gmecm@diy-efi.org
Subject: Intercooler temps (again)
Just for those tinkering with turbos.
On a stock syclone (ie engine never opened up), last week we ran from 97dF
to 130ish. There was an add-on heater core for use with the stock air to
liquid cooler. This week ran without it, while slightly warmer weather,
after using the same procedure the IAT went from 105 to 150s, during a
pass.
I was amazed that little cooler made that much difference.
Just makes ya wonder if it's the cooling area, or increase in capacity that
makes the difference.
Grumpy
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