Center/Front/Rear Mount Adapter

[bgott]

Cut this out, based off of dave w. design last night. 6061 Aluminum.

Fits my performer RPM nicely. I didn't bother to do clearance work from the bottom side, so it isn't truly "port matched" in my case, but I think will work nicely for me. Still need to polish the tooling marks out of the bore taper, just didn't have time last night. IMG_1664.jpgIMG_1669.jpgIMG_1666.jpg

[dave w]

dave w

[Fast355]

Honestly I would not polish it and leave it slightly rough. I might even go so far as to take a small cuttoff wheel and a dremel and purposely carve ridges in it. The reason behind that is so it will help atomize any raw fuel droplets that might try to collect and run down the bore of the spacer. I often add the same grooves on the intake manifold ports for the last 2 inches of each. Liquid fuel does not burn, vapor burns.

[geewhiz]

PM sent

I'm putting a '87 7.4L TBI with the factory adapter on an amc 360, with Edelbrock Performer carb manifold.

Thanks

[bgott]

PM sent

I'm putting a '87 7.4L TBI with the factory adapter on an amc 360, with Edelbrock Performer carb manifold.

Thanks

As the design belongs to Dave I am not at liberty to produce these. I will say I have had it on the engine now for 2 years or so without any issues and seems to work fine. I would recommend Dave get them produced and market the design but in truth the amount of machining required may make it not feasible in terms of price to demand. When you consider cost to produce would likely be around $300-400 per part youre halfway to buying a holley sniper at that point.

[dave w]

As the design belongs to Dave I am not at liberty to produce these. I will say I have had it on the engine now for 2 years or so without any issues and seems to work fine. I would recommend Dave get them produced and market the design but in truth the amount of machining required may make it not feasible in terms of price to demand. When you consider cost to produce would likely be around $300-400 per part youre halfway to buying a holley sniper at that point.

The adapter could be affordably manufactured Off-Shore (at or about the Trans-Dapt prices . . . https://www.hedman.com/carb-to-efi-adapters), minimum production run of 1000 units. My pocket$ are not that deep. Trans Dapt isn't buying my idea either

dave w

[geewhiz]

That's all right, I thought someone offered the step file above. I can make the measurements and make my own.

[bgott]

That's all right, I thought someone offered the step file above. I can make the measurements and make my own.

Dave's design is very nice and although a simpler adapter could be machined very simply, his requires 3D surfacing toolpaths to produce but the benefit is that the cross section of the hole is constant (at least that's how I understood it) and allows the wider throttle body holes to comfortably transition into a square bore intake. That was my impetus for making it when I did.

[bgott]

The adapter could be affordably manufactured Off-Shore (at or about the Trans-Dapt prices . . . https://www.hedman.com/carb-to-efi-adapters), minimum production run of 1000 units. My pocket$ are not that deep. Trans Dapt isn't buying my idea either

dave w

Mine Either! Something tells me it would be hard to sell 1000 of them too, unfortunately.