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Message: [QUOTE="jngreen, post: 44785, member: 679"] I really cant see it being any worse than two stock pumps eating on the oil, or a Gen 3 pumping way more oil than neccessary. Maybe I am wrong, but that is my thinking on it. I would think that it would be easier to more evenly match your hpop to your high pressure oil requirements, instead of just throwing way too much oil at it constantly. If I understand correctly, its usually not the pump that aireates the oil, it is the oilflow across the IPR(s). According to Dieselsite, the pump is driven at less than 1:1 ratio in stock form. There are other International motors that drive the hpop faster in stock form. Here is a quick copy and paste Some basic info: Your stock pump is currently geared at 85% of the engine RPM. At 3000 engine RPM, the pump shaft is spinning at 2550 RPM. We gear our standard Overdrive unit well under a 2:1 ratio. 66.66% to be exact. That is the ratio of the new pump speed vs. the old pump speed. The ratio pertains to the original drive gear of the pump - not to the engine. So, at 3000 engine RPM, your stock pump shaft speed was 2550 RPM. It will now be 1.67 x the 2550. So, it will now be spinning at 4259 RPMs when your engine is at 3000 RPMs. We're actually still running some testing to decide if the 25% model would be the best choice for the standard units for daily drivers when we release them for that. We'll know that very soon. How would that be harder on the oil if it is driven less than 2:1 like twin stock pumps would be pumping? [/QUOTE]

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