designing an adapter, thoughts please?

[Asa]

i'm gonna play around with making adapters for a dual 2-bbl setup, i have a few questions to start off with

here's a prelimnary design, using a Holley 5200
small holes with no circle are carb mounting places
small holes with a black circle in the center are where the adapter bolts to the head, the outer circle would be recessed to allow the bolt to sit below the carb and not create sealing problems, the black center would be drilled straight through to allow the bolt access to the mounting point

NOTE: nothing to scale, all copyright me, steal my ideas and i beat you inna head with a fish

1) the red area - i've noticed in designs where the center carb has been milled off, it's opened up completely, i know the main reason for this is because the 1bbl hole was already there.
now, the question is, on mine, do i open that up? or should i leave the center dividing piece there

2) the blue holes w/black centers - i've thought about it, and i'm not too sure that i like it only being mounted via two holes
so, the question is, if i have enough meat in the intake log, do i put extra bolt holes there, or put slots where those are, and one slot in the log in the webbing between the intake runners and put a big ole band clamp in it so it'd look something like this?

finally would be little things
arrange the carbs how? oO Oo? oO oO? Oo oO? Oo Oo?

i'd be centering the carbs over the #2 and #5 cylinders, so the red part is dead-center between cyls 1&3 and 4&6, better idea somewhere?

i know that depending on the year/engine, the carbs flowed between 240CFM and 275CFM (or something like that?) which would be better for a dual carb setup?


any other comments, thoughts, whatever
thanks

 

[wallaka]

Hmm. I'd leave the red area in there and 'port' it so i tapers off. Maybe that would help smooth the flow out.

Also, I would see if I could mount the carbs with the primaries outboard. It would be a little more trouble to route the throttle cables, but since the fuel distribution issues lean the outboard cylinders out, it would probably help to have the primaries closer to them. Like this: [ Oo oO ] .

I don't think anyone's had any problems with just two mounting holes...but I suppose you could try a band clamp. I don't think there's enough room for anything else. It would look ghetto though.

 

[xctasy]

Just a get a giant size big slab of 1.25" thick, 4.5 wide by 13.375" long alloy and make a mini 'AsaStang' alloy plate. Sort of like a mini Offy intake

The ideal place for the gas to go is between

cylinders 2 and 3

and

cylinders 4 and 5.

Bolt it onto the old centre carb mount, I'd say under slinging some steel ties or u bolts through the log will work fine. Add epoxy on the top of the log, and clamp down the new alloy adaptor, let it cure, and then drill to the iron to the right sizes.

Then mount a couple of good Holley 5200 or Weber32/36 DGV or 38DGAS, or Autolite 2100 or Motorcraft 2150 or Holley 2300 or 2305 juicers there.

Basically, you have a minimum 400 cfm at 1.5"Hg progressive Holley mounted on one plate, or 710 cfm at 1.5"Hg with a some big ass 500 Holleys.


Go to it!

 

[Anonymous]

i got some post here with an adapter using dual solex 40 M/M carbs side draft ! with an special made intake en al the gas linkage is realy fitting great !
cheap and great looking setup . no problems with hood clearance

 

[Asa]

i realized i can't really orient the carbs however i want as they have to go a certain way for the linkages... which sucks, but oh well

X, are you sayin you see nothin wrong with my plan? what about that bit about the center section?

 

[XFlow_Fairlane]

really I would say just weld up a little extra and do a direct mount.

there is nearly enough material on a E0 head to do a direct mount 5200. I just had to build up a little material here and there on it and viola! you need to run a thick gasket though to get it up over the rear portion of the log.I think this is a good route to go if you are going to modify a head at all. I just welded it up with some nickel rod on a buzz box. I took my time and let it cool between each pass (nothing longer than 1" at a time) once I get a job I will be able to send my head out to get rebuilt then it will be getting dropped on my motor.

 

[Anonymous]

my the force be with you

 

[Stubby]

i realized i can't really orient the carbs however i want as they have to go a certain way for the linkages... which sucks, but oh well

I am sure a hand full of bellcranks and rod ends would solve any linkage issues. What were you considering?

 

[FrankBoss]

why couldnt you have a adapter that fits the intake like plugging in a lego?

the dropped tube like sections fit the round openings in the head then just mount with two bolts centered to the intake... it would correct the warping problems and you could use gasket mattirial or "O"rings.... did I just give away a good idea... Bad Frank , Bad bad bad Frank

 

[Anonymous]

I think the easiest would be for two carbs to face the same direction, as far as linkage goes, that is if you want to make it as simple as possible.

See Ya,
Mike

 

[Asa]

really I would say just weld up a little extra and do a direct mount.

there is nearly enough material on a E0 head to do a direct mount 5200

me no have E0 head, me have C9 head, which is flat topped at least

why couldnt you have a adapter that fits the intake like plugging in a lego?

the dropped tube like sections fit the round openings in the head then just mount with two bolts centered to the intake... it would correct the warping problems and you could use gasket mattirial or "O"rings.... did I just give away a good idea... Bad Frank , Bad bad bad Frank

actually... that's a brilliant idea, and i'd love to do it as it should have absolutely no sealing problems...
but i be cheap

 

[Stubby]

It's simple now. That's the problem, not enough problems
Given a little time and engineering we can make lots of problems 8)

So, what orientation were you thinking about?

 

[Asa]

Given a little time and engineering we can make lots of problems 8)

actually... i just gave a lil thought to Frank's design...
i was thinking it would all need to be CNC'd or something...
but why not just make it like a cylinder sleeve? press it in, or even weld or braze it up top...

i'm goin too far here... but i see it in my mind's eye, all gleaming and polished to a mirror finish, graceful curves, edges so straight they'd put a razor to shame
mmmm....

'scuse me, i need to go take a cold shower...
and then buy my own metal-working shop

 

[Stubby]

The log is already tall for the hoodline. We need to keep it as short as possible. With that in mind what thickness and what orientation?

 

[Asa]

for orientation


for thickness, i was hoping to use hex bolts to hold it down, which shouldn't be any thicker than a normal bolt head
so at least twice the thickness of a bolt head of the size to install this (i'm just a lil vague, aren't i?), it's why i was thinking at least half an inch thick


and just for drooling, guess what i got in the mail a couple days ago?

 

[XFlow_Fairlane]

look at your first pic there evan...


I simpley added up a bead for the outer carb bolts to attatch into and drilled and tapped into the runners kinda. are you looking to do a single carb or is this going to be a dual carb setup? The E0 head has very little realestate on the top of it so I think it would prob even be easier with a flat top log.

http://photobucket.com/albums/v701/purf ... CF0043.jpg

http://photobucket.com/albums/v701/purf ... CF0044.jpg

I think the only benefit of the E0 head was that the EGR port on the side of it made the log wider at the carb pad area. I just laid the gasket on there like you did and looked at how much extra material was needed in a couple spots. if you have access to a buzz box or someone that could weld it for you cheap the cost would be pretty low on it. the nickel rod only cost me $35 to mod mine.....alot of money for 8 rods but big payoff in the end.

 

[michael_cini]

i would love to see this, where is it?

i got some post here with an adapter using dual solex 40 M/M carbs side draft ! with an special made intake en al the gas linkage is realy fitting great !
cheap and great looking setup . no problems with hood clearance

 

[Asa]

i would love to see this, where is it?

i got some post here with an adapter using dual solex 40 M/M carbs side draft ! with an special made intake en al the gas linkage is realy fitting great !
cheap and great looking setup . no problems with hood clearance

http://fordsix.com/forum/viewtopic.php? ... ight=solex

 

[michael_cini]

Thanks!

i would love to see this, where is it?

i got some post here with an adapter using dual solex 40 M/M carbs side draft ! with an special made intake en al the gas linkage is realy fitting great !
cheap and great looking setup . no problems with hood clearance

http://fordsix.com/forum/viewtopic.php? ... ight=solex

 

[addo]

Nothing to add, but the text boxes are starting to look cool!

Thanks!

i would love to see this, where is it?

i got some post here with an adapter using dual solex 40 M/M carbs side draft ! with an special made intake en al the gas linkage is realy fitting great !
cheap and great looking setup . no problems with hood clearance

http://fordsix.com/forum/viewtopic.php? ... ight=solex