Fuel starvation solutions?

[E92inSG]

Originally Posted by SYT_Shadow

We have not been able to test it yet. Damn GTS with the factory cage that covers the fuel pump area.
But anyway, if it isn't listed yet it should be soon. And it's not a crazy expensive solution either.

We've been pushing the topic since 2019 and finally, light at the end of the tunnel guys!!

wow. super looking forward to this.

[flipm3]

Definitely looking forward to seeing BWs solution.

[alpinefd]

Any update on this ! Sure would like to run less fuel in the tank, given how heavy the car is.

[Dranthonyrega]

When this happens are you getting a misfire code?

[Pwurz]

Just to throw an update out there, we (BimmerWorld) are still working through the solution and have a few test kits out in the wild with some that have known fuel starvation. The results have been mixed, definitely an improvement on some, then didn't seem to on another, so we want to understand what may have been the issue on the one that it didn't seem to help before putting our stamp of approval on it. Obviously this time of year the track time has slowed down for many, but we do have some other testing that is supposed to be done by the end of the month. So hopefully around the end of the month/early March we'll be able to give a more complete answer here.

[flipm3]

Originally Posted by Pwurz

Just to throw an update out there, we (BimmerWorld) are still working through the solution and have a few test kits out in the wild with some that have known fuel starvation. The results have been mixed, definitely an improvement on some, then didn't seem to on another, so we want to understand what may have been the issue on the one that it didn't seem to help before putting our stamp of approval on it. Obviously this time of year the track time has slowed down for many, but we do have some other testing that is supposed to be done by the end of the month. So hopefully around the end of the month/early March we'll be able to give a more complete answer here.

Woohoo!!! Cannot wait!!!
😎

[E92inSG]

I say it's better to do 100% testing and delay the launch than release an untested solution

[E92inSG]

Would this work?

http://www.radiumauto.com/MPFST-Mult...ank-P1565.aspx



And someone else has suggest fuel tank anti-slosh foam as well

[dkallen21]

Originally Posted by Pwurz

Just to throw an update out there, we (BimmerWorld) are still working through the solution and have a few test kits out in the wild with some that have known fuel starvation. The results have been mixed, definitely an improvement on some, then didn't seem to on another, so we want to understand what may have been the issue on the one that it didn't seem to help before putting our stamp of approval on it. Obviously this time of year the track time has slowed down for many, but we do have some other testing that is supposed to be done by the end of the month. So hopefully around the end of the month/early March we'll be able to give a more complete answer here.

I experienced fuel starved limp this past weekend at Barber. After turn four rise where car is unweighted under strong acceleration towards turns 5/6 on about 1/4 tank or little more of fuel. 2018 F80 CS on R7s. My buddy did also a hour later in same spot on track, in a 2017 F80 base on NT01s and roughly same fuel levels. I went into limp while his car stalled in addition to limp.

Fortunately neither were in a crowd or tight passing situation when it happened. We'll be fueling up more frequently from now on, but would be cool to see a solution for this issue.

[kyrix1st]

Every M3 before E92 had this issue. Common fix is BW dual pump setup (which is almost always on backorder) but not sure if they sell one for F8x.

[E92inSG]

Originally Posted by dkallen21

I experienced fuel starved limp this past weekend at Barber. After turn four rise where car is unweighted under strong acceleration towards turns 5/6 on about 1/4 tank or little more of fuel. 2018 F80 CS on R7s. My buddy did also a hour later in same spot on track, in a 2017 F80 base on NT01s and roughly same fuel levels. I went into limp while his car stalled in addition to limp.

Fortunately neither were in a crowd or tight passing situation when it happened. We'll be fueling up more frequently from now on, but would be cool to see a solution for this issue.

i get it consistently after the a long high G right hand corner. engine cuts on accel out. but also running E50-60, which is demanding on the fuel pumps.

Would love to do a surge tank as soon as a kit becomes available.

[E92inSG]

Any update from Bimmerworld?

[Alexander13.]

Originally Posted by E92inSG

Would this work?

http://www.radiumauto.com/MPFST-Mult...ank-P1565.aspx



And someone else has suggest fuel tank anti-slosh foam as well

OP Here. Yes that will work. You will need to do a bit of DIY.

Long story short, I have rebuilt my car entirely on the hunt for 1000rwhp to still go drifting. Still using the same full system as when i fixed it the first time.

[Joy15779]

hello dear mates...
still cannot understand,,,
I purchased stage 4.5 lpfp and protunintweaks device but without anything I m running 800 hp....

[Pwurz]

Originally Posted by E92inSG

Any update from Bimmerworld?

As an update, it seems like the solution we have come up with is a partial solution, and certainly not the complete solution we hoped for. We tested in various cars that experienced starvation - those that would previously starve at 1/2 tank did see an improvement to about 1/3 tank, but really what we wanted was to get well below that. The target was ultimately to get it below an 1/8 of a tank before starving. Still working to come up with a solution that does not require an external surge tank, as we are sure most would prefer to not have a fuel container in their trunk with a chunk of additional fuel lines running through their car, but the install may become a bit more involved than opening the fuel pump area.

[m5_mbb7]

Originally Posted by Pwurz

As an update, it seems like the solution we have come up with is a partial solution, and certainly not the complete solution we hoped for. We tested in various cars that experienced starvation - those that would previously starve at 1/2 tank did see an improvement to about 1/3 tank, but really what we wanted was to get well below that. The target was ultimately to get it below an 1/8 of a tank before starving. Still working to come up with a solution that does not require an external surge tank, as we are sure most would prefer to not have a fuel container in their trunk with a chunk of additional fuel lines running through their car, but the install may become a bit more involved than opening the fuel pump area.

Even the 1/3 tank solution would be huge for us m2c guys. I run E40 on track and I can’t even last a single 25 minute session without getting to half a tank and ending early to prevent starvation. Damn tiny 13gal tank. Solution is to run less e in the mixture but then it sacrifices temps. If you could PM me I’d love to help test it out.

[E92inSG]

Originally Posted by m5_mbb7

Even the 1/3 tank solution would be huge for us m2c guys. I run E40 on track and I can’t even last a single 25 minute session without getting to half a tank and ending early to prevent starvation. Damn tiny 13gal tank. Solution is to run less e in the mixture but then it sacrifices temps. If you could PM me I’d love to help test it out.

Same here, on my home track I get starvation at 2/3 tank! Getting to 1/2 tank before starvation would help trememdously! i run E40+

[GuyLedouche]

I would be in on 1/3 tank fix also. 1/2 tank is ridiculous.

[peter de la mare]

Just checking in for any more progress after 2 months since the last post.

[6Spd_M]

Pwurz Any chance there's an update on this? This is absolutely still a critical issue for a lot of us. Keeping the tank at no less than 1/2 tank gets real old real fast. Seems to be a lot of folks who are willing to pay for the right solution. Any feedback would be amazing.

[g2]

Prepping my new to me f82 for the track and came across this thread. Not a good feeling seeing this. Anyone try this kit?

https://precisionraceworks.com/produ...ance-fuel-pump

Hopefully BW will release a kit soon.

[E92inSG]

Originally Posted by g2

Prepping my new to me f82 for the track and came across this thread. Not a good feeling seeing this. Anyone try this kit?

https://precisionraceworks.com/produ...ance-fuel-pump

Hopefully BW will release a kit soon.

Many of us are actually running the Stage 3 brushless kit with ethanol to keep up with fueling.

It's basically just an upgraded pump in the oem bucket.