Fuel Foam

Used some in my 08' CRF450 tank - Worked fairly well. Not sure I would trust it with anything EFI, but for the ole' carby bikes it was a net positive. I preferred the fuel cell blocks over the individual smalls, but the concept is the same.


https://www.speedwaymotors.com/Speedway-Fuel-Cell-Foam-Block-14-x-4-x-6-Inch,52163.html?sku=6007050&utm_medium=CSEGoogle&utm_source=CSE&utm_campaign=CSEGOOGLE&gclid=CjwKCAjw8uLcBRACEiwAaL6MSbK20T-Xy-2gfFRHh4W9XJ99v6KD96yyMcj-WdrqExc-wrGQ3tYU7xoC0sQQAvD_BwE

http://www.ksrfoam.com/Gas_tank_foam_.php

My question would be why use it? I understand its use in circle track cars, especially ones that run methanol. I also understand its use in fighter aircraft that could get a hole shot into a fuel cell. But I just don't see the benefit in a motorcycle, what are you trying to accomplish using it; eliminate the movement of fuel or prevent a fire?

dkurtd wrote:

My question would be why use it? I understand its use in circle track cars, especially ones that run methanol. I also understand its use in fighter aircraft that could get a hole shot into a fuel cell. But I just don't see the benefit in a motorcycle, what are you trying to accomplish using it; eliminate the movement of fuel or prevent a fire?

Eliminate the movement. In particular the sloshing at 3/4 full tank.

I've been using it for 20 years in my roadrace bikes, the bigger the tank, the bigger the benefit. I use it in my RMZ450, it does make the bike feel lighter. In my GSXR it makes a HUGE difference, makes the 1000 feel like a 600.

I have only had a problem with it deteriate and block the fuel pump filter once when l left 10% ethanol brew in the tank for weeks.

I ran this stuff in my 09 kx 450 (efi) for like 4 years and never had a problem....ever. I would pull it out periodically just to check for and deterioration and or contamination and again, never had a problem.

This does make a huge difference in handling in my opinion, especially when you start to get tired and lazy.


note...I ran pump gas, rarely ran any type of race fuel.

motoxer66 wrote:

I ran this stuff in my 09 kx 450 (efi) for like 4 years and never had a problem....ever. I would pull it out periodically just to check for and deterioration and or contamination and again, never had a problem.

This does make a huge difference in handling in my opinion, especially when you start to get tired and lazy.


note...I ran pump gas, rarely ran any type of race fuel.

Lack of gas sloshing around has to help for consistent handling. I would guess every factory bike has it inside the gas tank.

I have some here but can’t remember where I bought it from. Dirt track & nascar cars use it. Summit racing has it.