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Old 12-07-2006, 03:38 PM   #1
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Default Pulley Measurement?

Quick question:

Is a pulley (SC) measured from inside or outside? Meaning, to accurately measure a pulley should I take off the belt and measure where the belt rests or measure to the most outer lip of the pulley (where the belt does not rest).

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Old 12-07-2006, 03:46 PM   #2
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Where the belt rests. Not the bottom of the V grooves, either. The peaks of the grooves. Ignore the outer lips.
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Old 12-07-2006, 04:06 PM   #3
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Default Pulley Measurement

thanks for the reply. What should the factory boost measure in a 1994 series 1? Approx?

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Old 12-07-2006, 04:58 PM   #4
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Your stock pulley should be 2.85" for a 94/95 L67. Boost should be about 8psi on the stock pulley.
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Old 12-07-2006, 07:59 PM   #5
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Quote:
Originally Posted by willwren
Boost should be about 8psi on the stock pulley.

depending on altitude...
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Old 12-07-2006, 09:16 PM   #6
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Correct. That'* at or near sea level. Boost also varies by humidity and temperature slightly.
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Old 12-11-2006, 12:57 PM   #7
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Default Pulley

I measured my pulley. I have a 2.365" pulley (400 mm) and I'm running 10 lbs of boost at 1000' altitude. Does that seem right?
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Old 12-11-2006, 01:46 PM   #8
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That'* probably WAY too small if you really have a Gen3 M62 on that thing. I'm betting you're getting knock out the ying-yang. Do you have a knock sensor? Any way to scan?

If not, you may be in for some damage soon.
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Old 12-11-2006, 01:49 PM   #9
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Here'* his L67 in it.

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Old 12-11-2006, 02:00 PM   #10
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That'* a Gen3 alright. I'll tell you I had to do ALOT of work to be able to run a 2.2", much less a 2.0" on mine. And nobody else ever has.

Can I have a closer pic of the pulley?
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