doing some work on my early 99 psd and i have the filter housing out. now i have read somewhere but cannot find it that some or few? take the spring loaded core out of the fuel tower in the filter housing...the one that feeds up into the filter. just wondering if this is actually a restriction it looks to have plenty of room for flow? i am installing riff raff high flow banjo bolts and there cvds to. the whole reason i am at this is because i had to tear it down to replace inj o rings again because i installed digrapios last time and didn't know they were junk. the shop that sold them to me said they used them and never had any issues well there out after 14k miles! the center pink o ring is degraded enough i had oil in my filter housing. so since i have had the parts sitting around for a while i am installing the thermal coated manifolds and thermal coated bellow up pipes and i had the y collector and turbine housing thermal coated as well, all done inside and out. i am adding the high flow banjo's and cvd's at this time as well and i bougth one of hornets ccv tanks so i am installing that too. i have the late 99 intake tins and a new non ebpv pedestal so that is going on along with the late 99 turbo with the ww2 wheel. i also bought all new vitron sleeves for the fuel lines since i'll have them off. i have had a dp tuner and afe stage 3 and 4" dp straight back and rx fuel crossover and ww2 for some time now and all has worked great for pulling my toyhauler. i just turned 108k miles on my f350 dually 6 speed.

 

forgot to meantion that there is no fuel heater element in my fuel bowl. i have had 2 other psd's and they both had them but this one does not. there isn't even a connector or hole in the housing to add one if i wanted to. is this an early 99 thing only?

 

don't see what it would hurt to take it out but decided to leave it in. i'm sure the riff raff high flow fuel fittings will make the biggest difference. the thermal coated exhaust will be interesting to see how it effects turbo response under a load.

 

the high flow fittings are a waste they will do absolutely nothing for you

 

thanks for the info......i already installed them and don't think they will hurt anything.

on top of the lack of fuel heater in the fuel bowl, the other interesting thing i found on the early 99 vs the late is the pass side fuel line and oil line are diff. the fuel line has a diff bend but the early does still work with a little tweak but the late has two 90* ends on it. its a clearance thing to the intake and to add a bit of room for the wire harness. stock lines that is.

 

They won't hurt anything but they were a waste of money. The fuel bowl heater does nothing as well