Options for RGS carburetor intake manifolds?

I'm guessing from the pic that your bike is set up with bolt-on aluminum inlet stubs with replacement sleeves like most/many Japanese bikes. The originals are the sleeve and mount to the head in one.
 
murphus said:
I'm guessing from the pic that your bike is set up with bolt-on aluminum inlet stubs with replacement sleeves like most/many Japanese bikes. The originals are the sleeve and mount to the head in one.
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The bike is new to me and I don't have it here to look at. I removed the carbs and taped over the stubs, maybe this photo answers your question.

It's my first Laverda and a lot of it is non stock mystery. The frame is painted so the bike must have been completely stripped at some point. The wheels are EPM. The carbs bodies and slides were mis-matched and the bodies not in the original left to right sequence. The wiring harness appears to be more or less original.
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That must have made a lot of noise when the tank level went down.
I once took an engine to bits for a resonating tank.
But I was young and inexperienced.

Paul
 
Paul Marx said:
That must have made a lot of noise when the tank level went down.
I once took an engine to bits for a resonating tank.
But I was young and inexperienced.

Paul
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I knew of someone who had an untraceable rattle in their old car. Finally somebody hit them, the car went to a body shop, and the body guy found an empty whiskey bottle welded up inside the panel, left by an auto worker.

This bike had no airbox or filters. I asked Wolfgang for an airbox and boots. Airboxes are out of stock. Boots crazy expensive. K&Ns I asked?

No, he's a fan of v-stacks. I never used 'em before, they made me uneasy. But if velocity stacks are good enough for Wolfgang, they're good enough for me. Long ones won't fit. These will. Can't wait to hear the induction roar.

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I'm sure that's true. The way I see it, the whole thing's a blend between already-fast-enough, rolling-with-the-guru's-wisdom, and more-or-less-period-correct.

For the time and money I'll have in the TS, I could buy a new Yamaha 900 triple and get 120hp with an actual airbox.
 
I have been selling the Malossi trumpets for years for triples. Crucially they are about 10mm smaller Dia at the mesh than normal trumpets the same length. Now quite hard to get hold of so not many left.
 
I have a few secondhand if any body is interested, maybe even new. Would need to rummage.
I have a couple of new long ones as well.

Paul
 
Paul Marx said:
I have a few secondhand if any body is interested, maybe even new. Would need to rummage.
I have a couple of new long ones as well.

Paul
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This might be my fault, thread drift. You have intake manifolds? or v-stacks.

And fwiw calling intake boots "manifolds" should be illegal. A manifold is a pipe with multiple branches like the intake or exhaust on a V-8. It's literally "many-fold." One carb to one inlet port isn't a manifold. I have spoken.
 
jheath said:
This might be my fault, thread drift. You have intake manifolds? or v-stacks.

And fwiw calling intake boots "manifolds" should be illegal. A manifold is a pipe with multiple branches like the intake or exhaust on a V-8. It's literally "many-fold." One carb to one inlet port isn't a manifold. I have spoken.
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I have some trumpets.

Paul
 
jheath said:
This might be my fault, thread drift. You have intake manifolds? or v-stacks.

And fwiw calling intake boots "manifolds" should be illegal. A manifold is a pipe with multiple branches like the intake or exhaust on a V-8. It's literally "many-fold." One carb to one inlet port isn't a manifold. I have spoken.
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Agreed. I usually call them inlet stubs or adapters, but everyone knows what's meant when calling them manifolds.
 
Paul Marx said:
I have some trumpets.

Paul
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jheath said:
This might be my fault, thread drift. You have intake manifolds? or v-stacks.

And fwiw calling intake boots "manifolds" should be illegal. A manifold is a pipe with multiple branches like the intake or exhaust on a V-8. It's literally "many-fold." One carb to one inlet port isn't a manifold. I have spoken.
Click to expand...
Ooh. I recognise a fellow pedant. Well done that man!

While we're in pedantic mode, intake trumpets with mesh strainers in them should not be called velocity stacks. Perhaps they could be called air flow restrictors, or engine stranglers.

BTW, the only sensible intake trumpets I've seen on a Laverda are those used by Red on his race bikes. They were designed by someone who knows something about fluid dynamics.
 
Dellortoman said:
Ooh. I recognise a fellow pedant. Well done that man!

While we're in pedantic mode, intake trumpets with mesh strainers in them should not be called velocity stacks. Perhaps they could be called air flow restrictors, or engine stranglers.

BTW, the only sensible intake trumpets I've seen on a Laverda are those used by Red on his race bikes. They were designed by someone who knows something about fluid dynamics.
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Photo or link to Red's velocity stacks please.

The v-stacks with mesh might not be race-efficient but what am I losing? It's a 40 year old street bike. If I'm not holding a 1200 wide-f*cking-open everywhere then 2nd-rate fluid dynamics are causing only moderate damage to my masculinity. Nothing my veneer of bravado won't mask.

I had a 250 Metralla and if I rode it everywhere with the throttle pinned wide open I was going waaaaay too fast, except Eastern Montana.

I am certain that if you promised to hot rod someone's engine, then did nothing but install a short-throw throttle grip, they'd believe you added 20hp.
 
I have these used 3. There are in good pliable shape. They really didn't need replacement but I replaced them anyway with new ones from Wolfgang last year some time (part of a larger restoration). Are you in the U.S.? The midwest? You are welcome to them. Just let me know what you feel like paying. U.S. only shipping.

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