So I am trying to get a new manifold onto my slant 6. The old one is a single barrel Holley carb, and the new one is a bbd by carter, off of a 1978 Plymouth Volare.
That is the simple part, here is the issue:
I have everything except a kickdown rod. One would think this entire issue of finding a different rod would be solved by turning the new carb the way the old carb sat. So when the Holley 1bbl is pulled on by the accelerator, it yanks the throttle to the driver's side of the car. When the carter bbd is pulled, it moves the arm front to back, rather than side to side (if you are in respect to the car). Buying a new setup would run in the hundreds. People believe these parts are made of gold, and I cant find em in junkyards here in CA since the super six setup was not offered in CA due to emissions.
My question is... is there any reason at all, I can't get a machine shop to manufacture a 2 barrel spacer, that twists the mount sideways.... Sounds dumb. But it might work. My only thought is that this destroys the whole idea of it being two barrels due to some kind of restriction in the mount. But perhaps it could even be a step further and just a 4bbl to 2bbl plate, turned sideways and drilled onto the intake, to cover the old holes and essentially creat two new barrel inlets facing the other way. Hopefully some of this makes sense to someone. Would this function, or is this just dumb?
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This is a shitty paint drawing of my thought process, but hopefully someone gets it.
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This is the new intake, as you can see, with the Carter, it sits so that the lever moves front to back in the car. If you were looking over the driver fender, you would see this view exactly.
And the 1bbl intake has the fuel bowl on one side, and the lever on the opposite, so it moves from fender to fender.
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There are several write-ups online about doing this swap, but all use stock parts. None have I seen with retrofitted stuff, besides a lokar cable - which solves the transmission kickdown, but none of the throttle stuff up top. Thoughts?
Couldn't hurt to get some quotes from your local fabrication/machine shop.
If I've learned anything about trying to Frankenstein a Subaru turbo into my Nissan machine is that there are separate mounting flanges/plates available for purchase. Just have the shop make the body for you. There are also pre-made adapters you can buy that are meant to rotate the turbo.
Perhaps there maybe something similar when it comes to a carb setup?
Plates and flanges are readily available for this car. There is a large community of people who make turbo manifolds and other manifolds so the flanges are easy to come by. This is merely a question of turning a carb sideways, if that would effect anything. I know a machine shop that may be able to create the piece i need. Perhaps tomorrow i can draw a pic of what it would make the air travel to through the custom flange. If it doesnt have any ill effect, ill have the part made i think.
Might hurt the flow and the fuel&air mixturing property a little bit, but I don't see why it shouldn't work.
The real question is whenever it's worth the effort contra getting a carburettor that fits and works with no fancy tricks, or if going the hacky route then do it big while at it.
[QUOTE=Van-man;42913732]Might hurt the flow and the fuel&air mixturing property a little bit, but I don't see why it shouldn't work.
The real question is whenever it's worth the effort contra getting a carburettor that fits and works with no fancy tricks, or if going the hacky route then do it big while at it.[/QUOTE]
The thing is, the Carter BBD IS the carb that fits the super six bbd intake. IT was a stock part. The problem was about 15% of slant 6's ever had this installed - and it was in the late 70's. So the cars had a different kickdown rod, return bracket, and manifold, as well as the air cleaner, and the choke setup. All of the changing of extra parts can be remedied by turning the carb the same way the old carb sat. Everything else fits. All I'm trying to accomplish is gaining control of the carb. $150-$200 would allow that, but I don't want to go spending that kind of bank to get a couple plates and a long rod.
I do think that the alternation of where the carb sits would effect the mixture and possibly make it as effective as a single barrel which is all that worries me, but I am still not positive. It would also have to sit about 3" higher to cause as little change in the flow as possible.
Could you possibly fab up the kickdown mechanism to use a cable instead? Maybe fab up a linkage and holder to actuate the stock rod?
I think you're probably just gonna be approaching the territory of buying the rod off ebay or something at a stupid price to have a hacked up method of making it work.
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