Hi guys and girls! I just got the Cummins 3.9L stuffed in chassis and also installed the beautiful 25 gallon aluminum fuel tank out of the stepvan donor and was wondering:

I have a brand new Carter P4070 fuel pump that I was going to use on my Dart Sport project car. How about installing it on my truck instead, back at my fuel tank as a pusher to help the stock Delco lift pump on my 4BT with Bosch VE fueler? Will it work well, and should I leave the stocker mechanical lift pump in place? I also plan to put a filter inline between P4070 and the Delco lift pump. Good? THANKS!

 

The stock lift pump will do fine on its own. No need for a pusher, why add the complexity?

 

Not sure there would be much advantage to an additional "pusher" pump. Is that Carter an electric? Might make more prssure than is good for the VE.

I'd be curious to know what would be considered good to use as a secondary inline filter myself, though. I'm installing an auxiliary in-bed tank under the toolbox, which I expect I may start using to mix bio at some point. I think a little extra filtration would be a good thing under those circumstances, maybe even save a more expensive "real" filter if I ever run into a bad batch of bio.

 

Thanks for the reply, Wannadiesel, and I think you're right again. Maybe best to just toss a spare lift pump in the tool box just in case of failure on the road away from a parts source. I'll leave it as is.

Yea, that's an electric, street performance level for my smallblock in the Dart Sport. Good thought on the auxiliary filter though. I wondered about that too. So, how about that filter, what works?