Intank walbro road track fuel starvation

enrita · 06-03-2013, 09:05 AM

Anybody with the intank Walbro experienced fuel starvation on tight right corners when fuel is about half tank?
Talking about Road course / proper track only .
Pump is installed correctly.

Gugs · 06-03-2013, 01:29 PM

Quote:

Originally Posted by enrita

Anybody with the intank Walbro experienced fuel starvation on tight right corners when fuel is about half tank?
Talking about Road course / proper track only .
Pump is installed correctly.

If its in the bucket correctly it shouldnt happen.

Wedge1967 · 06-03-2013, 01:35 PM

No issues with left hand corners?

enrita · 06-03-2013, 01:41 PM

only right corners when fuel gets pushed to the left. talking about hard 180 degrees right going upwards

enrita · 06-03-2013, 02:17 PM

here the 180 turn after the bridge , you can hear the limp mode:

robc1976 · 06-03-2013, 07:00 PM

Never had that, but I have some wierd things going on...I get the "yellow car on the lift sign" and a fuel pump malfunction code and it goes away within seconds...once it was accompanied with s limp mouse and it also wen right away....weird. no performance issues. Maybe a hose gets linked when bucket moves slightly when you take hard turns?

Killerfish2012 · 06-03-2013, 09:20 PM

Don't mean to derail your thread OP, but do you know what cold/hot tire pressures, you're running on the track?

enrita · 06-04-2013, 03:21 AM

Quote:

Originally Posted by robc1976

Never had that, but I have some wierd things going on...I get the "yellow car on the lift sign" and a fuel pump malfunction code and it goes away within seconds...once it was accompanied with s limp mouse and it also wen right away....weird. no performance issues. Maybe a hose gets linked when bucket moves slightly when you take hard turns?

i have SS lines so doubt they get kinked.

enrita · 06-04-2013, 03:22 AM

Quote:

Originally Posted by Killerfish2012

Don't mean to derail your thread OP, but do you know what cold/hot tire pressures, you're running on the track?

i lowered pressure cold tyre to 2.2 bar front and 2.3 bar back. Hot after a session they were about 2.8 bar . next time will lower even more.

jippii ensio · 06-04-2013, 04:45 AM

Quote:

Originally Posted by enrita

i lowered pressure cold tyre to 2.2 bar front and 2.3 bar back. Hot after a session they were about 2.8 bar . next time will lower even more.

A slight increase over the recommended pressures would help keeping the contact patch to the tarmac rather than rolling them under the car. By how much depends on the tire wall stiffness and the width of your wheels. Both of them help in keeping the tires to the ground, so consequently less over-pressure is needed to cure the deforming of the tires on hard cornering.

Streetluger06 · 06-04-2013, 11:08 AM

Last weekend I was at a track day and I noticed when I was slightly over a quarter tank I would begin to have the engine cut out from fuel starvation on left and right turns.

I have the Walboro In take 455.

Another guy with a stock fuel pump in his 135I was having the same issue so possibly not related to the upgraded pump and siphon.

enrita · 06-04-2013, 11:32 AM

And i know another guy with a stock 1M having the same issue at the track....

Continue5 · 06-04-2013, 12:44 PM

^ I've seen you go through 2 engines and continue to track the n54... why don't you get an m3, looks like bmw really didn't bother that much with the track readiness of this car.

akotten · 06-04-2013, 12:51 PM

Quote:

Originally Posted by Continue5

^ I've seen you go through 2 engines and continue to track the n54... why don't you get an m3, looks like bmw really didn't bother that much with the track readiness of this car.

Woah...what? Don't say that...I have a track day this weekend.

deadmn1337 · 06-04-2013, 01:02 PM

I believe this is a common issue and VAC came out with a weld-in oil baffle to combat the oil starvation. do a search and you will find it easily.

Streetluger06 · 06-04-2013, 02:22 PM

Quote:

Originally Posted by deadmn1337

I believe this is a common issue and VAC came out with a weld-in oil baffle to combat the oil starvation. do a search and you will find it easily.

Oil starvation is a problem with this engine, especially with long sweeping turns.

As far as the OP's issue, that is not related to oil starvation. The pick-up's in the tank don't seem to be functioning properly/efficiently with track conditions.

deadmn1337 · 06-04-2013, 02:57 PM

Quote:

Originally Posted by Streetluger06

Oil starvation is a problem with this engine, especially with long sweeping turns.

As far as the OP's issue, that is not related to oil starvation. The pick-up's in the tank don't seem to be functioning properly/efficiently with track conditions.

My bad, i read it as fuel originally then switched it to oil half way through for some reason.

Continue5 · 06-04-2013, 03:33 PM

Quote:

Originally Posted by deadmn1337

My bad, i read it as fuel originally then switched it to oil half way through for some reason.

That's because fuel starvation can sometimes be catastrophic, I would think if for a couple of seconds the fuel pump stopped and fuel didn't flow but a ton of boost did, something would break or at-least stressed to a point it will still run but not for long.

enrita · 07-08-2013, 07:01 AM

well, still getting this issue on hard right turns. Happens only with tank level below 3/4. everything is fitted correctly . i have also changed the carbon filter on driver side. lpfp sensor reading fine.
I think that maybe the bucket does not get pressed down correctly or moves around.

Does the M3 lpfp with bucket works pnp? i am getting so tired of this that i am thinking about getting a second hand complete bucket and run the walbro inline.

JStang · 07-08-2013, 07:11 AM

Quote:

Originally Posted by enrita

well, still getting this issue on hard right turns. Happens only with tank level below 3/4. everything is fitted correctly . i have also changed the carbon filter on driver side. lpfp sensor reading fine.
I think that maybe the bucket does not get pressed down correctly or moves around.

Does the M3 lpfp with bucket works pnp? i am getting so tired of this that i am thinking about getting a second hand complete bucket and run the walbro inline.

Seems like inline is the way to go. I haven't heard any issues with the inline and lots of issues with the in tank swap.

robc1976 · 07-08-2013, 09:32 AM

Quote:

Originally Posted by enrita

well, still getting this issue on hard right turns. Happens only with tank level below 3/4. everything is fitted correctly . i have also changed the carbon filter on driver side. lpfp sensor reading fine.
I think that maybe the bucket does not get pressed down correctly or moves around.

Does the M3 lpfp with bucket works pnp? i am getting so tired of this that i am thinking about getting a second hand complete bucket and run the walbro inline.

I replaced my fuel pressure regulator and I have gotten no more codes...with it for a 1 hour install and $175

bmwm3redblack · 07-08-2013, 12:04 PM

hey guys does it happen only when you are on a track?
So if i'm not planning tracking my car i would be allright with walbro455?

06-03-2013, 09:05 AM	#1
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	Intank walbro road track fuel starvation Anybody with the intank Walbro experienced fuel starvation on tight right corners when fuel is about half tank? Talking about Road course / proper track only . Pump is installed correctly. __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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06-03-2013, 01:35 PM	#3
Wedge1967 Banned 125 Rep 2,172 Posts Drives: '07 e92 AT Sport Montego Blue Join Date: Sep 2011 Location: Portland, OR iTrader: (3)	No issues with left hand corners?
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06-03-2013, 01:41 PM	#4
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	only right corners when fuel gets pushed to the left. talking about hard 180 degrees right going upwards __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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06-03-2013, 02:17 PM	#5
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	here the 180 turn after the bridge , you can hear the limp mode: __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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06-03-2013, 07:00 PM	#6
robc1976 DIYER 614 Rep 5,521 Posts Drives: E90 335i Join Date: Mar 2012 Location: Illinois iTrader: (14)	Never had that, but I have some wierd things going on...I get the "yellow car on the lift sign" and a fuel pump malfunction code and it goes away within seconds...once it was accompanied with s limp mouse and it also wen right away....weird. no performance issues. Maybe a hose gets linked when bucket moves slightly when you take hard turns? __________________ JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295 Last edited by robc1976; 06-03-2013 at 07:08 PM..
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06-03-2013, 09:20 PM	#7
Killerfish2012 Colonel 177 Rep 2,301 Posts Drives: E90 335I, E92 M3 Join Date: Feb 2012 Location: Midwest iTrader: (9)	Don't mean to derail your thread OP, but do you know what cold/hot tire pressures, you're running on the track? __________________ '07 335I w/ Mods '13 X1 Stock '11 X3 K&N
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06-04-2013, 11:08 AM	#11
Streetluger06 Private First Class 11 Rep 160 Posts Drives: 2007 335i coupe Join Date: Feb 2010 Location: Grand Rapids, MI iTrader: (0) Garage List 2007 BMW 335i [0.00]	Last weekend I was at a track day and I noticed when I was slightly over a quarter tank I would begin to have the engine cut out from fuel starvation on left and right turns. I have the Walboro In take 455. Another guy with a stock fuel pump in his 135I was having the same issue so possibly not related to the upgraded pump and siphon.
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06-04-2013, 11:32 AM	#12
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	And i know another guy with a stock 1M having the same issue at the track....
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06-04-2013, 12:44 PM	#13
Continue5 Private First Class 4 Rep 133 Posts Drives: 5-thirty-5 Join Date: Dec 2012 Location: Chicago iTrader: (1)	^ I've seen you go through 2 engines and continue to track the n54... why don't you get an m3, looks like bmw really didn't bother that much with the track readiness of this car.
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06-04-2013, 01:02 PM	#15
deadmn1337 Captain 39 Rep 656 Posts Drives: 2016 EB 435i Join Date: Mar 2010 Location: Long Beach iTrader: (11)	I believe this is a common issue and VAC came out with a weld-in oil baffle to combat the oil starvation. do a search and you will find it easily.
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07-08-2013, 07:01 AM	#19
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	well, still getting this issue on hard right turns. Happens only with tank level below 3/4. everything is fitted correctly . i have also changed the carbon filter on driver side. lpfp sensor reading fine. I think that maybe the bucket does not get pressed down correctly or moves around. Does the M3 lpfp with bucket works pnp? i am getting so tired of this that i am thinking about getting a second hand complete bucket and run the walbro inline. __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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07-08-2013, 12:04 PM	#22
bmwm3redblack Captain 59 Rep 886 Posts Drives: BMW ///M3 E46, BMW E92 335Xi Join Date: Jan 2011 Location: e13 osl iTrader: (0)	hey guys does it happen only when you are on a track? So if i'm not planning tracking my car i would be allright with walbro455? __________________ Bmw 335xi/FBO/ black on black/ 6sp manual/Cobb AP/BMS DCI/AA BOV KIT/VRSF DP'S/VRSF 7'FMIC /FULLY CATLESS/H&R sport springs/ 19' ac schnitzer wheels.
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