Engine/Transmission (1994 - 1998) 215 Pump Differences

[Jim Fulmer]

There seems to be allot of talk lately about the differences between the 887 and 913 pumps so I had to ask the question.



I'll start this off with mine. It's an 887 that has been to the bench for a minor low cost tweak and I have a mark for maxed out fuel delivery. I'm currently running close to that mark with a #6 plate (like the soft bottom end) It seems to respond (Motor, Turbo) just a little better with slightly less plate and almost totally cleans up at 40 psi.



I moved the plate back forward 1mm to see again how it responds both on and off the bottle, a gain to 42 psi. Off it's not bad and a tad more power with more smoke obviously, on the bottle it's a different anamal with the extra fuel keeping in mind my limited injector.



Which one of the pumps is better than the other? Joe D. comes to mind as one that has tested these to death in the past.



Jim

 

[zstroken]

I was told by scheid that these are the same pump, 913 just supersedes the 887. I inquired with them several times which one I should get and got the same answer each time.

 

[WShupe]

The 887 was used from '96-97 and the 913 was used from '97-98, same pump.

 

[Joseph Donnelly]

Both my Bosch guy and I checked each part in the Bosch catalog and all were the same. I did notice one difference, on one single pump of each number--can't say if they were typical or not. An 887 in a 96 would rev to 3000 stock even though fueling wasn't up there by that rpm. My 913 in my 97 died at 2750, as specs said it should. I used my 913 for all my 215 pump dyno testing and never had the fueling module apart other than delivery valve tests.

 

[DBraunig]

If you had a 913 and an 887 sitting side by side in your shop, which one would you use?



Dave

 

[Jim Fulmer]

I'd doubt it Dave.



Joe there is talk on the Competition Diesel site about this, it has been said that an 887 doesn't work well at over 4K RPM or over 17mm rack travel and this is were a 913 is better.



Wish I had the dyno time to really test my pump as I had two totally diffferent set of injectors.



Jim

 

[WShupe]

The 887 and 913 use the same plungers. The conversation stated that the 885 and 911 pumps do not have a retard notch in the plunger head affecting fueling above 4K RPM thus they are better suited for that application, the same is consistent with the 838 and 841 injection pumps. The helix is the advantage of the 887 and 913 injection pumps, the downfall being the retard notch.

 

[JerrodGlover]

So out of all those what one is the "Best" Pump to start with when building a pump?

 

[WShupe]

Depends on the application ie: desired RPM, streetability issues, and the amount of money you wish to spend.

 

[Jim Fulmer]

If you wanted to build a 13mm pump buy an inexpensive 180 pump as the cam works just fine, if you need more fill time cut the cam. A stock pump for the street, buy a 215 pump! I will promiss you that with the right tuning, injectors and fuel supply it will flow a ton of fuel... ... supply, supply, supply!



Jim

 

[SLangegger]

Could someone please tell me which pumps came in which trucks? I know different pumps came with manuals and autos, and the ratings changed from year to year, I just dont know what these numbers coincide to. What are the factory h. p. ratings for each pump number? I. E 887,913,885,911,838,841

 

[DBraunig]

Jim,



It really was a serious question i was hoping you or JoeD would answer. Which would you use?



Dave

 

[WShupe]

If you wish to run 13mm plungers use an 885 or 911, if you wish to grind the pump cam use an 838 or 841. But as Jim mentioned on the street under 4K RPM the 887 or 913 is tough to beat. 887-913=215hp, 885-911=180hp, 841=175hp, 838=160hp.

 

[Joseph Donnelly]

I haven't tested an original 887 against my 913 that I used. I would not expect any difference once both are set up the same. I would be more interested in the condition of the individual pump. Cutting the cam is easy enough to get done, but I don't know if they hold up as well as an original Bosch cam. I have gotten mixed reports, mostly against reground cams in high hp and 13 mm applications over extended usage. I always used the 215 hp cam for my engine.

 

[WShupe]

I would highly recommend EDMing the delivery valve holders to reduce pressure and camshaft wear in any modified injection pump, especially if the pump cam has been reground.

 

[Jim Fulmer]

Dave, I really think it depends on the condition of the pumps also, either one would be fine. I you can have both, try both as R&D... ... . I would and tune both to a tee.



Jim

 

[BigPapa]

I've got an "854" I picked up from a guy for a little bit of nothing to monkey with. What was it's rating? What did it come out of?



Thanks,

Scott

 

[DBraunig]

Scott,



I believe the 854 is from 94-95 models with automatic transmission, rated at 160hp.



Dave