Question for those running Weber carb.

[denguy]

A little turbulence in the intake might be a good thing, distribute the gas around in the air charge a bit more, you know.

[Movin]

I wanted smooth flow, without any ledges to create any air turbulance.
The bottom is a match for the Festiva manifold, which makes a smooth transition to a match to the straight shape of the Weber.
Dont know if it helps much with the 1.3, but that is the idea I had and wanted to do on my adaptor.

Plus one!! I have done tons of conversions. You need a straight drop into the intake from where the idle mix comes out. You want to avoid unheated metal
as much as possible. Stumbles and warm up problems. The weber venturi is well designed and more turbulence is not needed, it will usually give better mileage even with an adapter.

[rollertoaster]

Here's a couple air filter boxes I have
Are for the 3236. One is a cold air intake, or blow through turbo box.
The other is a panel filter box and works very well for throttle response.










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[denguy]

Diamond plate! Why did you have to use diamond plate, that's what I have for mine. Actually it was the cheapest stuff my source had on hand. Your AC looks good.

[rollertoaster]

Thanks, but it's not diamond plate. I use regular sheet aluminum. Sometimes I put the "engine turning" pattern on with a drill press and small wire brush


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[denguy]

Movin................what did you mean by "unheated metal"?

[Speedbird]

OK. So I finally had time to finish the adapter. Got every thing mounted. Motor cranks and runs good. I have a problem with the choke though. I wired it up to the original hot wire coming from the alt. The choke is very slow about opening. Alt choke wire puts out 7 volts. Wired it to 12 volts, but it didn't seem to make much difference. Choke is not adjustable like on some carbs. Any suggestions?

[drddan]

Does choke have rivets, instead of screws? If so, drill out the rivets and put in screws. Now it is adjustable.

[Speedbird]

Going from memory, I think it has locking tabs on the cover. I drilled out the rivets, took it off the body for cleaning, any reinstalled it with screws.

[jfruauff]

How do they run with the webers. I got a festiva project and it came with 2 weber 42 dcoe. What are these worth?

[Movin]

Movin................what did you mean by "unheated metal"?

The bottom of a intake usually has heated metal to help vaporization
and prevent fuel puddling. Too much unheated metal such as flat
metal left in the flow of things will cause turbulence but make tuning
problems during warm up as fuel will puddle there. A straight shot
is best, a funnel look okay, flat spots are not good. Flat spots under
the idle fuel hole are really not good.

If you are running propane or cng then from a drive-ability stand
point it does not matter at all.

This is why two 2 barrel side draft carbs set up perfect work so well
and don't really need a choke. A single 4 barrel set up perfect on the same
engine..cannot be set up perfect, it will have problems.