New Melling Performance Oil Pump Coming

MTF said:

I'm sorry I answered on my phone and just the quote, I'm now on the computer.

Vash, that's great that you got the ball rolling on this product.

If the Melling and the TSS was available at the time I needed it and the hand full of people that I trust with recommendations said either one is good,
I would have gone with who ever could get the gears to me the fastest.
I don't know if I would have gone for the pump housing, since I had such low miles on the engine.

I don't see the high pressure pump on Summit for the 6.2L, only the 10340BR for the 4.6L and 5.4L

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HAP said:

Wait, so our truck's oil pressure gauge will not vary with the actual pressure? Only shows mid range if pressure is present??

R,
HAP




That is correct

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HAP said:

WTF?? I'm so disappointed in that! No wonder everyone talks about being too late if you see oil pressure loss. I always wondered why one would not notice a declining oil pressure... that is some weak shit there FORD.

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Vash said:

@HAP Blame all the past idiots who complained to dealers about their fluctuating oil pressure. They didn’t know anything about pressure varying with RPM and other variables. Ford saw fit to “fix” the problem by giving them a “gauge” that stays rock steady until there REALLY is a PROBLEM!

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On an idiot light setup, the oil pressure switch is closed (direct connection to ground) when there is no oil pressure and open (no connection to ground) when there is oil pressure above whatever level the switch is preset for. Usually this is a very low value - around 5 PSI or so. The idiot light is wired from the ignition switch, though the light, and then out to the oil pressure switch - pretty much the same as the gauge, except with the light in place of the gauge. The gauge also has an extra ground connection on it, but you get the idea. Power -> gauge or light -> sender or switch -> ground to engine as needed. So what happens when you mix a oil pressure switch with the gauge? With the engine off (low or no oil pressure) the gauge properly reads low/no oil pressure. But with the engine running and oil pressure present, the gauge pegs to the far right, and would most likely burn out the innards of the gauge if left that way for very long. To add some resistance in the circuit to give a decent "middle of the gauge" reading and keep the magic smoke in the wires (if you don't get this joke, you haven't screwed up any wiring and witnessed a short circuit), Ford added just enough resistance into the circuit so that when the oil pressure switch was closed, the gauge reads mid way - the visual equivalent of around 40 PSI or so. That way most drivers are fooled because they think the gauge is reading right and telling them they have an "about in the middle" oil pressure reading, when in fact, it's just telling them that they don't have critically low oil pressure. If the oil pressure did drop, the oil pressure gauge would suddenly peg to the far left - the visual equivalent of the oil pressure idiot light coming on, but not quite as noticeable. Brilliant.

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Vash said:

@HAP I’ll quote a rough explanation of how it works. Although, ignore the PSI values used. Honestly, it’s really more of an ON/OFF vs Low, Medium, or High.

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Dane said:

@Truckzor - Brief tangent. What kind of difference do you see in your aftermarket tranny gauge versus the stock? I'm assuming your aftermarket sensor is in the tranny pan?

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Truckzor said:

Still running my old gauge set up for now, so no tranny temp yet. Haven't decided what I want to do with the gauge pod.

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