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Old 01-22-2014, 08:03 PM
Dan Stokes Dan Stokes is offline
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Join Date: Sep 2012
Location: Wilmington, NC by the Atlantic ocean
Posts: 2,530
Quote:
Originally Posted by mach4 View Post
That doesn't sound right...but I admit I don't know. My limited understanding is that the throttle changes the position of the rack which essentially lengthens the stroke of the injector pistons resulting in more fuel being delivered. If that's true, at any given throttle position, the IP would be delivering the same amount of fuel per revolution regardless of load. And that kind of fits with experience - hold throttle constant, speed decreases uphill and decreases downhill.
Just a reminder - you don't have a throttle. I think it's important to keep Diesel and Otto cycle terminology straight to help us think thru these issues.

But anyhow - is there no internal governor in the Bosch IP pump? That would be very different from my other Diesel experience but I sure don't claim to know much about these pumps. It would be cool if one of the pump savvy guys would chime in here. Maybe Greazzer?

Dan
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