Here is my 1987 300SDL. I have a bunch of fun working on this thing and converting it to WVO. I'm going to start sharing my adventures on this blog. We'll start today with the Raw Power Fuel Pump I added to my fuel system. I added a pressure gauge before my filter and was only seeing and average of 8 psi out of my stock lift pump. Spec lift pressure for this injection pump is 11-17 PSI. Thus I wanted to see if I could get more power by boosting the pressure up to spec. I currently run a single tank setup, so I bypassed my stock lift pump. I filled it with motor oil and put a hose on it to loop motor oil so the veggie oil that was in there doesn't polymerize. I want to keep it in good working order in case I need it.
So I added the pump yesterday, Memorial Day. I also swapped out a FPHE for an old heat exchanger. I tried out this black steel exchanger and it worked well. The FPHE works better though.
The pump is a 15psi version and it runs consistently at 15psi. I am happy to report that I got a nice boost in acceleration having this stronger lift pump, at a constant pressure.
-Jason Jelonek
