Technical specs of 17* HPOP? - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 3 (permalink) Old 12-06-2009, 08:14 PM Thread Starter
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Question Technical specs of 17* HPOP?

I'd like to start crunching some numbers and was wondering if anyone had any technical specs on the 17* stock HPOP?

What I'm looking for is:

cc per revolution of the pump rotor
gear ratio between pump rotor and the crankshaft

Or ...

if you have bore and (operational) stroke for the pistons used in the pump

Or ...

if anyone simply has cc/min per engine RPM (though I'd prefer the specifics above)

Thanks in advance!
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post #2 of 3 (permalink) Old 12-06-2009, 09:55 PM
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Re: Technical specs of 17* HPOP?

I believe that a 17deg HPOP displaces 7.2cc's per pump revolution...or a whopping 6.x% more than a 15deg HPOP

A HPOP driven off of the factory HPOP gear will spin 0.85 revs for every 1 revolution of the crankshaft.

A 15 deg HPOP displaces ~6.7cc's per pump revolution.

these flow rates are based on 100% pump efficiency...so in the real world the displacement will be less than these figures.
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post #3 of 3 (permalink) Old 12-06-2009, 11:47 PM Thread Starter
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Re: Technical specs of 17* HPOP?

Excellent, that's some good info. Thanks a lot!
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