PFS drop in LPFP

[whozaka]

How is the PFS pump holding on?

Pump is working so far, BUT.

The fuel floater does not. I've paid $2,000 in shop labor fees to diagnose this issue. PFS says its installation issues, then send out different parts. No matter what the fuel floater will not read properly I think they used a core from a 340i and not a supra when they built mine. That's something to be weary about. the PFS fuel floater at maximum will read 31L of fuel. I don't know what else can be done about that. Perhaps the way its oriented will not allow the floater to properly read or what.

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[tanabersx]

Pump is working so far, BUT.

The fuel floater does not. I've paid $2,000 in shop labor fees to diagnose this issue. PFS says its installation issues, then send out different parts. No matter what the fuel floater will not read properly I think they used a core from a 340i and not a supra when they built mine. That's something to be weary about. the PFS fuel floater at maximum will read 31L of fuel. I don't know what else can be done about that. Perhaps the way its oriented will not allow the floater to properly read or what.

Is this happening with all of them?

 

[whozaka]

Is this happening with all of them?

I can only speak on my experience

 

[becomethefirestorm]

Yep, I just replaced my Visconti LPFP Upgrade with the PFS Drop in. Running consistent and High pressure.

Had to replace because my Visconiti LPFP was starting to fail and I'm pushing high numbers that require the higher fuel pressure.

No complaints

Hi bro! After 4 month of using PFS lpfp, what can you say ? No issues, problems, else ?
Did this lpfp work on low level fuels? i mean on 3-5 gallons in tank.

 

[Jakester]

Hi bro! After 4 month of using PFS lpfp, what can you say ? No issues, problems, else ?
Did this lpfp work on low level fuels? i mean on 3-5 gallons in tank.

I have had mine on for about a month now and ran through about 4 tanks of gas in total going to and from Dallas to get the trans built. So far I haven't noticed any issue at all. Floater seems to be working just fine. I hope the op can get his issue resolved. Sounds extremely frustrating.

 

[Wetherman]

Anyone have any pointers on running the trigger wire from the battery compartment to the reflex on the passenger side firewall/kick panel? The instructions are ineresting - oh, just run the wire up to the Aux2 port on the Reflex under the rug?

Any suggestions as running wire inside this car is no easy task.

 

[Zupra_Toscana90]

Uncertain if this PFS pump is root cause at this point, but seems like PFS pump may either be maxed out or not operating to its advertised numbers.
Did logging on the dyno last night and were getting erratic fuel pressure and oscillation with fuel trim at the top end.

My theory is possible a grounding issue since the pressure remains very constant before it suddenly drops off. Seemed anything above E60 and getting into the higher 600's low 700WHP range is where I see the issue.

Notice the erratic pattern around 5-6k RPM on the 740hp graph
Smooth and stable on lower boost/timing map when power is in 600's

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