Re: DIY-EFI
Posted: Thu Mar 18, 2021 7:57 pm
Wes,
The mounts you found are just the sort of thing that could be employed. It is up to you what approach you take; I have seen several solutions that work fine.
Each solution has its own set of issues, the GPAS manifolds have bosses already moulded into them in about the right place, however they may not be big enough for the injector carriers you have identified and may need the bosses building up to take the threaded mount.
Some things to be considered:
• Holding the injector in place.
• Holding the fuel rail in place on the injector.
• Injector size. (see below).
• Injector wiring/plug clearance
• Fuel line connection to fuel rail.
When putting my system together choosing the correct injector was very tedious because we needed to select an injector that firstly delivered the right amount of fuel in its optimum operational range. We found the CHD 610 which is rated at 25 lb/hr best after trying a range of different sizes. This meant I had to make different fuel rails for each injector tested.
Keep in mind the penetration of the injector nozzle is a major consideration when choosing or building the mount.
One factor to be considered in my system was that I use Semi-sequential injection because the Aerovee does not have a distributor, there is no way of knowing which of the cylinders in each bank is going to fire next. Not a problem you have to deal with so you could go Full Sequential.
Next, which ever injector you choose the manifold / mount / fuel rail combination must be tailored to suit.
After a lot of experimenting I am currently building a new and "forever" final set of manifolds based on a pair of Aerovee manifolds I purchased from Facebook Maketplace. I will post some pictures as I (slowly) progress.
The mounts you found are just the sort of thing that could be employed. It is up to you what approach you take; I have seen several solutions that work fine.
Each solution has its own set of issues, the GPAS manifolds have bosses already moulded into them in about the right place, however they may not be big enough for the injector carriers you have identified and may need the bosses building up to take the threaded mount.
Some things to be considered:
• Holding the injector in place.
• Holding the fuel rail in place on the injector.
• Injector size. (see below).
• Injector wiring/plug clearance
• Fuel line connection to fuel rail.
When putting my system together choosing the correct injector was very tedious because we needed to select an injector that firstly delivered the right amount of fuel in its optimum operational range. We found the CHD 610 which is rated at 25 lb/hr best after trying a range of different sizes. This meant I had to make different fuel rails for each injector tested.
Keep in mind the penetration of the injector nozzle is a major consideration when choosing or building the mount.
One factor to be considered in my system was that I use Semi-sequential injection because the Aerovee does not have a distributor, there is no way of knowing which of the cylinders in each bank is going to fire next. Not a problem you have to deal with so you could go Full Sequential.
Next, which ever injector you choose the manifold / mount / fuel rail combination must be tailored to suit.
After a lot of experimenting I am currently building a new and "forever" final set of manifolds based on a pair of Aerovee manifolds I purchased from Facebook Maketplace. I will post some pictures as I (slowly) progress.