ModWrench Posted May 13, 2023 Posted May 13, 2023 I'm sure several of you will know what they are as soon as you look the pictures, but I'm stumped. These parts are in the Tamiya 1/18 kit of the Nissan R381 Can-Am race car, circa 1969. The kit has a small block Chevy engine. There are four of these parts (C-10 on the instruction sheet), and they are located on the engine side of the rear bulkhead. Each of them have 3 buds protruding from them. I'm guessing they represent a fitting for some sort of fluid line? Are they oil filters, pumps for the hydraulic wings, part of the fuel system? I've searched the Google a bit and found a similar set up on another Can-Am car, but no explanation. What say you?
Oldriginal86 Posted May 13, 2023 Posted May 13, 2023 If that is the fuel tanks the part in question goes on, they appear to be a breather or fuel hose junction.
Ace-Garageguy Posted May 13, 2023 Posted May 13, 2023 (edited) The parts on the tree appear to be this type of electric fuel pump, which would be used to ensure constant fuel available to the high-pressure mechanical pump that would supply the mechanical injection system, under conditions of fuel slosh in the tanks due to braking, cornering, etc, Can you post the photo of a similar setup you found online so I can verify my theory? Edited May 13, 2023 by Ace-Garageguy 1
ModWrench Posted May 13, 2023 Author Posted May 13, 2023 Ace - The photo I found is from the Nissan 380, the predecessor model to the 381 kit I am working on.
Ace-Garageguy Posted May 13, 2023 Posted May 13, 2023 6 minutes ago, ModWrench said: Ace - The photo I found is from the Nissan 380, the predecessor model to the 381 kit I am working on. Yup, those are fuel pumps. 4 of 'em. Fuel slosh is a real problem under high-G braking, cornering, and acceleration, even with foam-filled bladders in the tanks. Multiple pickups in the tanks leading to multiple pumps is an attempt to provide constant fuel flow no matter how full the tanks are, and what attitude the car is in.
ModWrench Posted May 13, 2023 Author Posted May 13, 2023 Perfect, thanks for the insights and answer. Much appreciated!
Ace-Garageguy Posted May 14, 2023 Posted May 14, 2023 4 hours ago, ModWrench said: Perfect, thanks for the insights and answer. Much appreciated! You're welcome.
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