RCU Forums - View Single Post - Webra speed 61 muffler

09-01-2008 | 12:23 AM

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DarZeelon

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From: Rosh-HaAyin, ISRAEL

RE: Webra speed 61 muffler

Quote:

ORIGINAL: frugalme

I have drilled/tapped Webra Speeds to accept the same mufflers/headers as an OS.60FSR. According to MACS Products an OS 50/61 FSR, ASP 61, Enya 60X, MVVS 61/77 header will fit.

Tom,

I guess your Webra Speed .61 is a rather early example, from the early '70s, that did not come originally drilled to accept a muffler and needed to be fitted with a strap-on muffler.

Later engines of this type have an exhaust stack pattern which is identical to MVVS .61-.91 engines and to the OS.61FSR.

This does mean a bolt-on arrangement (not bolt-through, like most current engines), with 35 mm between centers.

You can drill and tap your engine's exhaust stack, as Terry wrote, to accept an MVVS muffler.
Of all those engines mentioned, the MVVS .91 is the only one still in production and so are most of its mufflers.

They are most often much less costly than aftermarket items, despite being OEM.

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