I noticed that a fellow has an ad over at the IPD web site for a "Factory" Weber 3-piece intake manifold. I wonder if it is in fact an aftermarket manifold.I worked as a Volvo partsman for ten years and never saw anything like that in any of the Volvo Competition catalogs. The only thing listed for 164's was suspension upgrades. And besides Volvo only used Solex carbs in their B20 kits. I know because I bought a factory stage two kit. Still have most of it left except for the "r" cam and the lightened flywheel.

He is definitly not bashful on his price either. For what he is asking he should include the carbs. Any thoughts????


Jim

I can't say that such a thing exists, but this manifold looks good enough to be one.

Is that the 6 cylinder Marcos that was on eBay a few months back?
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I'm JohnMc, and I approved this message.

I have no idea.

There is a second triple carbie B30 Marcos in their pictures section at MarcoManiacs, it's a different looking manifold with Solex's on it.

Although I do not know definitely, I see no reason not to believe that Volvo did factory intakes for the B30 that would fit sidedraft solex/weber carbs.
Fairly recently intakes that were supposed to be copies of the factory intake manifolds were still available. I believe the price was in the $450 - $500 range last I checked.

John
V-performance.com

There were R-Sport / Volvo Competion Service manifolds for Solex sidedrafts, and Webers or Dellortos would bolt right up to them as well. I'm guessing that they would be interchangeable between B20 and B30 heads -- ???

That's the only thing I can think of that could be remotely considered "factory" manifolds for Weber sidedrafts. They are rare, sought after, and pricey... but $333 each is a stretch.

If they are not that, I'd be pretty curious to know more.

Webers on a B30 might have been from a boat motor or something.
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And now for something completely different.

No, the marine manifolds were downdraft only. Single barrel Solex's.

Jim

The carbs might be interchangeable but the manifolds certainly are NOT.
Have you looked closely at a B30 lately? The ports are all one hand,
not mirror image like the B20.
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George Downs Bartlesville, Heart of the USA!

Then obviously those are not the same manifolds as for a B20. We know about the Penta manifolds that take downdraft Solexes, but sidedrafts? I'm really mystified as to what the guy has, or thinks he has.

KGTrimning in Sweden has them.
Not many in the US as far as I know.
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George Downs Bartlesville, Heart of the USA!

KgTrimning sells the three piece Weber B30 manifolds. They say 'dagspris' in the catalog, which I'd guess means 'ask us for the price', but their 4 cylinder manifolds for B20's and B21's are both priced at 1600 kr, so scaling that up to the extra cylinders puts us at roughly 2500 kr, which converts to just over $350 in USD. Maybe they charge a little extra for the rarity, but I can't see them charging TRIPLE the price they charge per cylinder for the 4 cylinder weber manifolds.
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I'm JohnMc, and I approved this message.

KgTrimning sells three-piece DCOE style manifolds for the B30 - I wonder if they are less than $300-ish apiece?
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I'm JohnMc, and I approved this message.

I haven't a clue as to the originality of the manifolds, but don't the twin side draft Solex carbs have the same mounting pattern as do DCOEs? As well as twin side draft Dellorto's?

In other words, perhaps factory R-sport Solex manifolds that also fit DCOE's and Dellorto's.
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I'm JohnMc, and I approved this message.

Don't forget Mikuni

Mikuni, Weber, Dellorto all have the same bolt pattern and are interchangable.

Its matching, jetting and tuning when you run into problems

I say screw sidedraft and MS it!

I'd say that in this day and age MS'ing it would be a *much* better idea than paying for those manifolds and 3 sets of sidedraft carbs. You can tune mechanical carbs so well - without feedback they can only get so good.
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I'm JohnMc, and I approved this message.

John, I have been out of the loop for awhile. What is MS?

Jim

Megasquirt fuel injection. It can use pretty much standard injectors, manifolds
and sensors but has its own adjustable programmable computer that is easy
to modify to set to your engine. Not even very expensive.
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George Downs Bartlesville, Heart of the USA!

Yep. It's an open source sort of project, with lots of hands helping improve it. It can be a bit confusing at time because there are so many options of what to do with it. It consists mainly of a cumputer controller that you could either build yourself (parts are about $120 or so) or have built (usually about $250 - 300). Then you can talk to it using Windows or Linux software and set all sorts of parameters. People keep coming up with new versions of the software that runs on the MS box and the software that talks to it on windows, adding new features and functions. Originally it was fuel only, now it also does spark too (in many different flavors).

Basics include an 8X8 (or 12X12 depending on version) table of fuel values with RPM on one side and manifold air pressure on the other. Spark has a similarly sized table by RPm and MAP.

Unlike the D-Jet computer this can bet programmed to use almost any type of hardware - injectors or sensors. It can handle feedback from narrow or wide band O2 sensors should you add one. If you add boost of some sort to the engine, it will handle that too (most of them come with an MAP sensor that goes up to 2.5 bar).

All in all you can fine tune it to as great a degree as you want to - no swapping of expensive little Weber bits, no dark mystery of what effect at different conditions each little carb part has. Lots of people yank the OEM computers of new cars and plug in an MS too - merely because OEM comuters are sealed black boxes, but the MS is open and completely programmable.

Heck, once I get it installed on my PV I can have things like traction control and rev limiters.
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I'm JohnMc, and I approved this message.