DIY : PTFE line- tank to HPFP + inline fuel filter upgrade

[BQTuning]

I think Dimitri's question is a good question ... what's different about the 1M fuel rail?

Filippo

The filter is in the high pressure pump not in the fuel rail. I am curious the difference between the two rails as well.

After my conversion experience between the Z4 and the 740i the different part numbers represents a hardware variant. So lets say if I asked the question of context in reference to another part for example the Boost solenoid. The F01 and E71 with the N54 have a different part number for the boost solenoid. And this is why:

 

[martymil]

Guys there is no difference in the fuel rails as i have a 1m and i fitted a 135i rail as there was no differences

I kept my 1m rail so if i wanted ro go back to stock 1 day

 

[Erichale77]

If there's two different part numbers there has to be a difference. Did you check orifice diameters?

 

[martymil]

Exactly the same

 

[doublespaces]

Did you check the price?

 

[BQTuning]

Guys there is no difference in the fuel rails as i have a 1m and i fitted a 135i rail as there was no differences

I kept my 1m rail so if i wanted ro go back to stock 1 day

If I am understanding you correctly yes the 135i and 1M rail is the same rail cause they have the same part number. the question is about the rail for the base N54 cars ie the 3 series, E89, F01 and E71 that have a different part number for the rail.

 

[BQTuning]

Did you check the price?

There are the same price but check this out.
13-53-7-575-480 is a revision of 13-53-4-548-603 but the 1M/135i 13-53-7-535-897 has no revision

 

[martymil]

Ill check it for you as im building a 335 racecar

 

[fmorelli]

Since Barry and I are in there next week, changing the LPFP and lines, we'll go ahead deal with the HPFP filter. I ordered the Fuelab 81831-1 and two -6AN to 3/8 barb connectors from JEGS.

Thanks for all the posts on this.

Filippo

 

[Torgus]

After my conversion experience between the Z4 and the 740i the different part numbers represents a hardware variant. So lets say if I asked the question of context in reference to another part for example the Boost solenoid. The F01 and E71 with the N54 have a different part number for the boost solenoid. And this is why:

Is there any real world performance difference?

 

[BQTuning]

Is there any real world performance difference?

Nothing noticable other than reduced rattle from the turbos on part throttle IIRC

 

[doublespaces]

Amazon same day shipping came through:

 

[NoQuarter]

Amazon same day shipping came through:

I like those fittings

 

[doublespaces]

I like those fittings

Yep me too. The set I got are nice and snug, don't see them going anywhere. Good call by @martymil

 

[martymil]

Just make sure you use a little lube on them like wd40 or similar when you put them on flex sensor, just makes it easier and protects the oring in the fitting from getting damaged

No force needed to put them on once you lube them up it should just slip straight in

Sometimes they it can be a little tight to get them on

 

[Blaster3500]

Also for extra insurance I used loctite 222 on the threaded cap. I can't remember where I read it but Russell says it is optional. Just be sure to clean the threads well with alcohol or use primer.

https://www.amazon.com/Loctite-38653-Purple-Strength-6-milliliter/dp/B0002KKTT0

 

[doublespaces]

Just make sure you use a little lube on them like wd40 or similar when you put them on flex sensor, just makes it easier and protects the oring in the fitting from getting damaged

No force needed to put them on once you lube them up it should just slip straight in

Sometimes they it can be a little tight to get them on

Is there a replacement oring size in case it is damaged, or is this just a buy new sensor situation?

Also for extra insurance I used loctite 222 on the threaded cap. I can't remember where I read it but Russell says it is optional. Just be sure to clean the threads well with alcohol or use primer.

https://www.amazon.com/Loctite-38653-Purple-Strength-6-milliliter/dp/B0002KKTT0

Excellent. I only have the high strength stuff, so I'll need another bottle.

 

[Blaster3500]

If we are talking about the same thing the oring is in the fitting. Russell may give you the size. Worst case you replace the fitting.

 

[martymil]

Standard size orings should be easy to get from any auto parts store

It sits inside the fitting and can be easily taken out with a pick or needle

 

[doublespaces]

It comes with a saddle clamp bracket also: