So in an effort to help stop fuel starvation issues on road course high speed left hand turns or lengthy left handlers with lower fuel volume, I’m attempting to fix it with this first. I may be led to an additional external surge tank but trying to avoid that since the car is still mainly street driven.
I run E85 on course and street and have a complete Fore L4 kit feeding a Whipple setup. As most know, E85 burns at a higher volume so my tank will be lower in fuel by comparison to gas at the end of a session. The Fore fuel hat that I replaced has a completely open design (no container to hold a certain level of fuel) which doesn’t help fuel rapidly sloshing/transferring to the right saddle on those left handers I referred to earlier. This is what makes most stock pump systems better than complete open systems in road course events. On street the Fore hat was a non-issue for fuel supply even under 1/4 tank level.
Here‘s what the Radium helps in addition. Having a return system is required for this hat which flows directly back into the hat containment and the return line inside the hat has a venturi draw setup that is connected to the right (passive) side of the saddle tank which creates an active draw to the hat/container as well. There is also a large check ball that allows fuel in and closes if fuel tries to work its way out. The return fitting was preset to a -6an fitting but my system has a -8an return line so I changed that fitting out and the last step was transferring over the fuel level sender (not pictured) which was easy to do.
I’ll know if this will satisfy the problem once I get back on track but I can’t see how it wouldn’t be better. I always top off fuel between sessions so I’m full to the hilt at the beginning of each 20/25 minute runs.
Heres the pics.
This is what I replaced.
I run E85 on course and street and have a complete Fore L4 kit feeding a Whipple setup. As most know, E85 burns at a higher volume so my tank will be lower in fuel by comparison to gas at the end of a session. The Fore fuel hat that I replaced has a completely open design (no container to hold a certain level of fuel) which doesn’t help fuel rapidly sloshing/transferring to the right saddle on those left handers I referred to earlier. This is what makes most stock pump systems better than complete open systems in road course events. On street the Fore hat was a non-issue for fuel supply even under 1/4 tank level.
Here‘s what the Radium helps in addition. Having a return system is required for this hat which flows directly back into the hat containment and the return line inside the hat has a venturi draw setup that is connected to the right (passive) side of the saddle tank which creates an active draw to the hat/container as well. There is also a large check ball that allows fuel in and closes if fuel tries to work its way out. The return fitting was preset to a -6an fitting but my system has a -8an return line so I changed that fitting out and the last step was transferring over the fuel level sender (not pictured) which was easy to do.
I’ll know if this will satisfy the problem once I get back on track but I can’t see how it wouldn’t be better. I always top off fuel between sessions so I’m full to the hilt at the beginning of each 20/25 minute runs.
Heres the pics.
This is what I replaced.