DIY : PTFE line- tank to HPFP + inline fuel filter upgrade
- Thread starter Blaster3500
- Start date
I don't even know what i've got. Only changes to my fuel system upstream of this is a stage 2+ bucketless LPFP. But recently I've switched to a DW400, @Omar@VaderSolutions would be able to tell you exactly what type of filtration has been on there better than me.
So I just finished doing everything. I used a straight push lock on the outlet side of the filter at first but then discovered that it wouldn’t be able to reach the hardline tee where my PI feed line is. So I had some 6an aeroquip line laying around and a push lock 90 degree hose end that I ended up using on the outlet side of the filter. I noticed that the OP made an offset bracket and mine was bolted directly to the footwell bracket. This may have contributed to the hose being too far to the drivers side to reach the hardline without kinking. I also drilled the HP fuel rail already to 11/64 and started the car up when I did my 6466 first startup. Just waiting for the snow to melt so I can start tuning. I’ll post some logs in a couple weeks. I’m doing all of this in conjunction with 750cc bosch injector PI, two walboro 450s, 6an feed and return, stock FPR deleted and plugged, and an external FPR. The car is running a PTE 6466 ball bearing twin scroll on full E85.
That requires you upgrade the whole line and not just the "short line". It's better to upgrade the whole line of course but if you chose the short line option this doesn't go in the same spot.
That certainly makes sense. But if it’s an easy upgrade to take out that HPFP filter and add a 6 micron in-line filter while adding FlexFuel, it might be a good add-on option to include with Motiv’s ethanol sensor/fuel line combinations. For me, I really don’t need to upgrade the fuel line (at least I don’t think I do) for my occasional E50 use with my stock turbos.
Looks great! I used the offset bracket to keep the filter off the tank vent? (large white line). With the bracket is was still really close on my car. I used a 90 as well on the outlet.
I noticed the 90 as well when I reviewed your main post. Can’t wait to do some testing
Can't wait to see your results! I have a couple hundred more miles on breaking in the clutch before I can get some logs.
Luckily the clutch and differential are all broken in from last season on mine. The turbo and BKC manifold are the big changes to last year. But I have some 28-31 psi logs from the MMPs last season that I can use to compare high pressure fuel against this year.
I may install a filter as well with my flex fuel... I just have not made up my mind if I want to drill the HPFP, as I already have a shotgun.
@Erichale77 @Turby did either of you drill this out?
Do you mean drill fuel rail? If you have the double shotgun I would imagine it will already be drilled. The single shotgun has instructions to drill the rail.
I have double shotgun set up and I believe the new rail is drilled out already.
They have the rail, so you'd think they would drill it out.
Hopefully it is. What puzzles me is this: The fittings on the center of the rail is 6AN which is something like 3/8" ID or 0.375". If you drill the end of the rail out to 3/16" this is about 0.1875". Why is the 6AN necessary? The factory hardline is only 1/4" tube, wouldn't 4AN be sufficient?
I'm bad with fittings and standards, some tell me what I'm missing.
