Am interested in sharing experience with installing EFI in an A110 or similar rear engined Renault.
Currently looking at Jenvey Heritage carbs and Haltech ECU.
Would appreciate comments on fuel system. Currently my A110 has the larger plastic fuel tank with feed from the top to a Facet rated at 4- 7 psi electric fuel pump via a filter. The fuel then flows to the rear via a 8mm copper line embedded in the fibreglass bodywork then it goes to a regulator and then to the twin 45mm carbs via reinforced rubber fuel line.
Attached are two schematic plans for a fuel line map for carbies and for EFI obtained from a Motorsport Connections brochure.
To my way of thinking, you could use the existing fuel line up to the engine bay with the Facet pump functioning as a lift pump. Then use teflon braided hose fuel lines 8mm to feed the surge tank (1.5 litres). Then the fuel line connects to a Bosch high pressure fuel pump and 100 micron filter to go to the vacuum operated regulator as in EFI schematic to feed the Jenvey carbs which has fuel fittings the same as the Webers. The regulator feeds unspent fuel back to the surge tank and then the return line to the fuel tank proper. Some literature suggests using the existing fuel line as the return line but it seems just as easy to use the existing fuel system which is not under pressure up to the rear until the surge tank and then use higher rated fuel line and feed in a separate return line to the tank.
Would be interested in any comments.
Currently looking at Jenvey Heritage carbs and Haltech ECU.
Would appreciate comments on fuel system. Currently my A110 has the larger plastic fuel tank with feed from the top to a Facet rated at 4- 7 psi electric fuel pump via a filter. The fuel then flows to the rear via a 8mm copper line embedded in the fibreglass bodywork then it goes to a regulator and then to the twin 45mm carbs via reinforced rubber fuel line.
Attached are two schematic plans for a fuel line map for carbies and for EFI obtained from a Motorsport Connections brochure.
To my way of thinking, you could use the existing fuel line up to the engine bay with the Facet pump functioning as a lift pump. Then use teflon braided hose fuel lines 8mm to feed the surge tank (1.5 litres). Then the fuel line connects to a Bosch high pressure fuel pump and 100 micron filter to go to the vacuum operated regulator as in EFI schematic to feed the Jenvey carbs which has fuel fittings the same as the Webers. The regulator feeds unspent fuel back to the surge tank and then the return line to the fuel tank proper. Some literature suggests using the existing fuel line as the return line but it seems just as easy to use the existing fuel system which is not under pressure up to the rear until the surge tank and then use higher rated fuel line and feed in a separate return line to the tank.
Would be interested in any comments.