Thanks. Has anyone seen my previous thread regarding missing diagram with FRU in the Ford Motorsport SVO Supercharger installation manual. The manual implies that the FRU is to be used even on the 99+ with a returnless fuel system. Says to see some unknown diagram that is missing from all copies of the manual that I have. I need to determine this is the case even with my upgraded in take 255 fuel pump.Progress is good and it's looking good!
Thank You for that wisdom. Glad to hear that I do not have to worry about it.Does FRU = Fuel Regulation Unit? If so, I wouldn't install it. Tuning was done in the past for boost by increasing fuel pressure and turning down timing. You will be tuning with the EEC and a higher volume pump with larger injectors to fuel it.
I tried to tune with one and my first blower was a Powerdyne. The fuel management unit added fuel across all loads and rpm but not enough at lower rpm and high load. That resulted in a popped head gasket when I towed a guy out of sand........................That is when I bought my first Tweecer, larger injectors, higher volume fuel pump and tuned it right.
See step 25 and 26. They refer to the blue FRU (see bolted to firewall) and even it's use on a 99+ returnless fuel system per some unknown (and missing) diagram)Yes, FMU is the common name for a device which raises the fuel pressure based on vacuum, I;m not sure what FRU would mean.
BTW, that metal object is a wire terminal, a raw uncrimped terminal, likely it just errantly fell, down into the filter.
So tapping directly into the intake manifold for a dedicated vac line is not necessary or recommended? Was reading that some of the Mustang guys recommended a dedicated vac line by tapping into the upper manifold but not indication as to where or really if that extreme was necessary.Tap the vacuum between the main intake and vacuum booster hose, that is usually the most stable source
The BOV goes downstream from the MAF, so it doesn't alter the inlet air measurement. I think you can pull it anywhere in the inlet pipe going to the intake, where ever is most convenient.
Hi Don - this Ford Motorsport SVO Powerdyne kit was made for the Explorer but I'm seeing some minor stuff probably due to running changes Ford had for the Explorer. My kit has a up to 99 Explorer spec so not sure. Zachow3 had this kit before years ago and he test fit it to his truck but never mentioned anything about the close clearance with the Water Pump tubes.Hmm, that kit doesn't seem to be perfect for the Explorer 302.
That last picture kind of looks like the hose might be possible to route behind the bracket, next to that bolt. If that is the easiest path, you might alter the two water outlets a little, shorten those ends for that one hose, to make the bend less tight at the two pinch points.
I also wonder if a new water pump is planned, that one looks old? As much trouble as the WP R&R is, being all the way down to it would be a good time to replace it, if it's age is suspect.
Yes, I am seeing most of the Motorcraft Water Pumps I've pulled up seem to be from China. Really not wanting one from China.A Ford WP is the best, but note that they seem to be made in China now, listed on the Ford box. The one I did mine last month was from many years ago, but other people have posted pictures of the new boxed units. They look alike, so we are hoping they are still the top choice. They weren't that expensive from what I recall, say $75.