AV8 Pickup Build With EFI

hellmet said:
virgil whats the mpg and hp benefit's to adding efi? billy
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Probably not a lot over a well tuned engine. A couple of advantages may be the EFI handles the different altitudes better, you are able to input what air fuel ratio you want at different loads and RPM and with a crank trigger setup the ignition timing can be dialed in better (you can input what advance you want at any load and RPM). Is the fuel injection that much better --- No and a lot more work, would I do it again --- yes, it keeps the grey matter working and the challenge is fun. This is actually my third flathead injection, the first one I made the housings from scratch (2X2's) to look like carbs (well favor is a better word) and that system was my introduction to fuel injection and what a learning curve that was. I think the best bang for the bucks and less problems is a four barrel carburetor. But as I mentioned I would do it again , no regrets.

Vergil
 
34flathead said:
just a fantastic job, did you do a tech for tech week or what site did you post the build on?
rich
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Thanks Rich and maybe more detail on the build at BillB's site, was going to post it on the HAMB but I'm settled in here now and like it so figured I would post.

Vergil
 
beautiful engine....great looking pickup....and great ingenuity with the EFI...great work....thanks for sharing, especially with the great pics.....ah, the things people can do with flatheads....nice...Mike
 
Mike in AZ said:
beautiful engine....great looking pickup....and great ingenuity with the EFI...great work....thanks for sharing, especially with the great pics.....ah, the things people can do with flatheads....nice...Mike
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All you guys have had is the opportunity to see the pictures. Vergil and I both live in Tehachapi and are in the same club. I have had the distinct pleasure to see and hear both of his cars close up and personal. They are both incredible works of live art. Old Fart or not (look in you rear view mirror Vergil, I'm right there) this guy knows what to do.
 
Hey, thereare lot more old farts lurking in your mirrir, Vergil - great job on the flattie FI setup. It looks super and I will take deucemac's word for it in that they are as beautifully crafted as they are engineered. Thanks for posting your great work!
 
Again thanks, and what a surprise to see Mike respond from AZ, went to grade school near him (Dysart Elementary and was born in Buckeye) as for Doug (Deucemac) guess the comments he made will cost me a beverage of his choice the next time I see him, btw his avatar shows his very nice hemi powered deuce.

A few more pictures to show how the throttle position sensor is set up in the back carb using the accelerator linkage. The tps is from an '85 Buick Regal, both coupe and pickup use this setup and work good and are hidden with full range of 0-5 volts.

Vergil

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I know that Az speed and marine started a efi for flatheads a few years ago using a 4 berrel manifold but never did finish it.I ahd machined the bungs to weld in but like them I have to put it on the way back burner.Thanks for the pics great job Flatmotor40
 
truly awesome in the detail and execution, ( boy I would loved to have that set up on my 276 in 56 for my 41 sedan 1/4 miler, held off the 283s for coulpe of years) flatheadernie
 
Ol' Ron said:
Truly a great job, and gets better the more we see
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Thanks Ron but I have only showed the good pictures, I also have a few oops pictures and will share one of them. The first picture shows the setup I used to cut the injector bores, this is the second jig, the first jig I bored two injector ports and it dawned on me maybe I better see how the injectors were going to fit and -- yep the holes were cut to high in the port and there wasn't enough room for the injectors, so made another jig and drilled ONE hole this time and it gave me the room I needed but had four holes in the port now. Filled the two top ones and was on my way again.

Vergil

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lol...know any Trumans when you went to Dysart??....went all the way thru to graduation in '71....small world....Mike
 
Brian said:
Vergil, I certainly won't give you any flack; how can I? I'm too gobsmacked!! I followed your build up of this on a different forum, and was most impressed. Great to hear it's living up to expectations. Brian
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Your "gobsmacked" had me completely flummoxed so I had to look it up. Great word. lol
 
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