Fueling issues; Surge tank or fuel cell?

[Jevi Javi]

Tired of having fueling issues on track on my e46 m3. Already have two internal pumps inside the oem tank. Does help but its not a total fix.. Thinking of taking the next step and installing a surge tank or maybe a fuel cell as i dont drive my car on the street. It is more race car than street car. For those of you who have fuel cells or surge tanks, please chime in and specify the brand/model you recommend.
thanks!

[pMak26]

I have the bimmerworld dual pump setup, on slicks, pulling impressive lap times out of the car and have run the thing down to damn near empty on this setup. I had a big issue previously as well. Changing the stock tank's fuel pickup sock/mat with a brand new one was the biggest contributor to resolving the issue. The dual pump setup won't help for shit if the stock pickup isn't doing it's job properly. Change that filter/sock out for a new one. Your issues may be resolved for $10.

Referencing a post from my build thread:

Ah, in case anyone was wondering if my fueling issues were solved by the bimmerworld dual pump setup, plus new main pump screen/pickup...



I was still pushing and never had a fuel cut. This was the level as I came off track and rolled it right onto the trailer.

[Jevi Javi]

I'll check that out see if that helps.
thanks

[bigjae46]

I have the bimmerworld dual pump setup, on slicks, pulling impressive lap times out of the car and have run the thing down to damn near empty on this setup. I had a big issue previously as well. Changing the stock tank's fuel pickup sock/mat with a brand new one was the biggest contributor to resolving the issue. The dual pump setup won't help for shit if the stock pickup isn't doing it's job properly. Change that filter/sock out for a new one. Your issues may be resolved for $10.

Referencing a post from my build thread:

Is there a part number for the sock?

I have a radium bosch conversion and it goes down to about 10l and then I'll get starvation on long fast right handers. One track I go over a steep hill and into a right hand 180 and I will fuel starve there as well.

[Jevi Javi]

looked it up. And Could not find a part number.

[CrookedCommie]

I would try to post on the WRL Facebook group and see what setups the E46's are using. I believe my buddies team is using a Radium setup but I'm not sure on the details.

[Jevi Javi]

I would try to post on the WRL Facebook group and see what setups the E46's are using. I believe my buddies team is using a Radium setup but I'm not sure on the details.

i had a friend at the WRL event in Watkins Glenn last weekend. He took a look at some e46s but they are mostly running fuel cells

[Jevi Javi]

guess im gonna go with Radium engineering

[Cronenberged]

Maybe look into a Holley hydromat

[Jevi Javi]

Bought Radium Surge Tank kit. Problem solved! Should had gone that way a long time ago...

[HaB racing]

Bought Radium Surge Tank kit. Problem solved! Should had gone that way a long time ago...

Me too.

[George Hill]

i had a friend at the WRL event in Watkins Glenn last weekend. He took a look at some e46s but they are mostly running fuel cells

Keep in mind WRL cars are sometimes going to cells to increase their fuel capacity or increase their refueling speeds, not just to run it to empty.

With a stock tank the surge tank is likely your best happy medium. I know you've already solved the issue just relaying some additional info.

[CrookedCommie]

Good to hear, can you post some pics of the install?

[bigjae46]

My buddy has a bone stock engine and fuel system. He can run down to .5 gallon on track. Maybe a fresh OE fuel pump and sucking jet pump will work?