stringfellow
Active Member
I'm posting in the fuel injection systems forum because I figure most people here will be familiar with the FlyEFII dual fuel pump unit. I've decided to mount mine on the engine side of the firewall (4-place Bearhawk) both for convenience reasons (hard to fit under floor) and to keep the high-pressure portion of the fuel system apart from the cockpit.
The unit came with a simple aluminum plate as a heat shield, though it leaves the sides of the pumps exposed. While I will try to keep everything mounted as high as possible on the firewall to get distance from the exhaust, will this simple heat shield be adequate? Should I fabricate a new one with "wings" to wrap around the sides? Am I dealing with direct radiation heating from the exhaust? Or the overall equilibrium of air temp inside the cowling?
One inherent advantage to a fuel rail system is that you are moving a lot of fuel all the time, transporting a lot of heat away, but I'm sure preventing much heat absorption is beneficial. What have others' experiences been with shielding their electric pumps and post-filter on the firewall been?
Thanks.
The unit came with a simple aluminum plate as a heat shield, though it leaves the sides of the pumps exposed. While I will try to keep everything mounted as high as possible on the firewall to get distance from the exhaust, will this simple heat shield be adequate? Should I fabricate a new one with "wings" to wrap around the sides? Am I dealing with direct radiation heating from the exhaust? Or the overall equilibrium of air temp inside the cowling?
One inherent advantage to a fuel rail system is that you are moving a lot of fuel all the time, transporting a lot of heat away, but I'm sure preventing much heat absorption is beneficial. What have others' experiences been with shielding their electric pumps and post-filter on the firewall been?
Thanks.
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