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sjf911 sjf911 is offline
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Join Date: Dec 2006
Location: Idaho
Posts: 5,624
I am running the typical 50:50 windshield fluid for injection. The Vari-cool is its own controller with a built-in map sensor to control the injection volume by varying PWM to cycle the pump. It gives you a linear flow curve that you can vary by adjusting onset and peak boost pressure thresholds. There is a vacuum line that tees off of the boost gauge to the Vari-cool controller. It does not communicate with the MS-II. The digital readout on the controller is actually your boost level. There is an analog "bar" above the digital face for monitoring injection flow volume.
I have contemplated going the route of mixing 60:40 meth to water by weight but as a chemist, I have a very healthly respect for pure methanol and prefer the simpler and safer route of a water diluted mix.
Sapere aude
1983 3.4L 911SC turbo. Sold

Last edited by sjf911; 10-15-2009 at 09:48 AM..
Old 10-15-2009, 07:43 AM
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