Some amateur fanatics are astonished to learn which the ’98.5-’02 ECM has to be retained in a P-pump swap. It's because, although it will now not have something to try and do Together with the injection procedure, it’s nonetheless wanted to ensure that things like oil strain and drinking water temp sensors to carry on to function appropriately, in addition to the gauge cluster.
With all the entrance deal with out of just how, Bosie broke the injection pump equipment nut unfastened by way of an 11/sixteen-inch socket. From there, a gear puller was used to force the VP44’s tapered shaft out in the pump equipment.
The one trade-off in retaining the ECM however no more acquiring it plugged in to the VP44 signifies that a Examine engine light-weight is permanently illuminated. Truck proprietors have 3 simple solutions: 1) live While using the CEL often becoming on; two) take out the bulb while in the sprint; or 3) crack out the electrical tape and canopy it up.
The last merchandise of enterprise is making certain the right lift pump is becoming utilized to feed the P-pump. As opposed to the VP44, which needs 8-to-ten psi value of gasoline strain, a P7100 should see between twenty five and 30 psi continually, and more than that In the event the operator is earning huge electricity.
Going past the freebie mods, the next sensible step is always to Have a look at the pump’s supply valves. The shipping and delivery valves are positioned inside of shipping valve holders, both equally of which are positioned involving the plunger and barrel assemblies and the injection traces that feed gasoline to the injectors.
On this page we’ll investigate each of the parts in the P7100 that could be modified to enhance its overall performance. We’ll begin with the mods that received’t set you back a dime, but that may add greater than 100 hp. Then we’ll discover The inner upgrades that can take this pump from gentle to wild.
And when coupled into a 24-valve engine you get to PolarPump benefit from the upper flowing (four-valve) cylinder head, which implies you may operate a bigger turbocharger with no sacrificing small-stop drivability. Last but not least, there aren't any electronics to worry about failing, specifically the computer married to the VP44 that’s infamous for offering up the ghost at quite possibly the most inopportune time.
Pointless truly. VP's very last no less than 100k with appropriate gas supply. I don't know how much time and money would be included to put a p-pump with a 24 valve, but I'm confident It isn't a small number of both. The number of vp44's can you purchase for what a p-pump conversion fees? Naturally Everybody has their priorities. IF you want to spend buckets of money on the pickup and/or you happen to be fascinated with sled pulling and drag racing your truck and you believe you'll need whichever electricity Advantages a p-pump may or may not posses (I do not know), then the swap is for you personally.
The gasoline plate controls the maximum gasoline output in the P7100, as well as stock unit is conservative to convey the the very least. Although there is not any shortage of aftermarket gasoline plate selections (together with a good amount of personalized-produced, one-off versions), eradicating the gasoline plate entirely will yield more rack vacation and significant electric power gains (generally 35 to forty hp).
At any time you’re retaining the identical cam and lifters, it’s finest to not disturb their romance. Also, foregoing the use of any assembly lube makes it simpler to run the valves later on
that have been fitted with general performance-focused timing improvement and/or grid heater deletes. On the other hand, cold commence problems can certainly be remedied with using a block heater and/or preserving timing progress conservative.
The opportunity to gasoline at substantial rpm is exactly what opens the door to an array of horsepower potential While using the 12-valve motor. It’s crucial to Observe, nonetheless, that stiffer valve springs must be installed in the head if you plan to spin the motor past 3,five hundred rpm or run big Raise.
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This marvel of mechanical engineering is relatively advanced. Visualize the P-pump being a mini inline-6 cylinder motor bolted into the aspect of your inline-six cylinder engine. There are several moving components inside.