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Author Topic: collector to muffler options  (Read 1300 times)

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Offline evanphi

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collector to muffler options
« on: August 02, 2016, 04:53:46 pm »
Got my new stainless Delkevic headers in the mail today. Collector OD is 2.5", ID is 2.25". My current muffler is 2.25" OD. Womp.

So what I have is a slip-IN rather than a slip-ON.

Would this still be ok if I clamp it? Is there a exhaust-capable liquid gasket maker to avoid leaks (yes, Permatex Ultra Copper)?

Should it be welded? Or should I have a reducer made up so that it is still a slip-ON, technically (least fav option)?
« Last Edit: August 02, 2016, 04:56:52 pm by evanphi »
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--Evan

1975 CB750K "Rhonda"
Delkevic Stainless 4-1 Header, Cone Engineering 18" Quiet Core Reverse Cone, K&N Filter in Drilled Airbox
K5 Crankcase/Frame, K4 Head and Cylinders, K1 Carbs (42;120;1 Turn)

She's a mix-matched (former) basket case, but she's mine.

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Offline Stev-o

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Re: collector to muffler options
« Reply #1 on: August 02, 2016, 07:11:56 pm »
Personally, I would not slip it in a header, know what I mean?! [it will leak]


Have you checked Cone Eng?


http://www.coneeng.com/exhaust_system_kits.html
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Jerry Rxman Griffin aka MuthaF'er

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Re: collector to muffler options
« Reply #2 on: August 02, 2016, 07:52:32 pm »
Sell it and get one that fits.

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As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline gwallis

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Re: collector to muffler options
« Reply #3 on: August 02, 2016, 08:02:04 pm »
Make your own....


I just bought a tailpipe from Auto Zone and added a baffle from Carpy.  Cut the tailpipe to length and slip the 2.5 Inside Diameter onto the Delkevic.  Paint with high temp flat black paint.

Works like a charm and has a very nice note.
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Offline flybox1

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Re: collector to muffler options
« Reply #4 on: August 02, 2016, 08:03:32 pm »
Yes.  Get one that fits.
Someone on the forum was selling a cone 2.5"ID quiet core 18"......
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

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Offline BomberMann650

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Re: collector to muffler options
« Reply #5 on: August 02, 2016, 08:21:25 pm »
I slipped the yoshi into the mac midpipe.  Had it welded.  Not an issue. 

It passes gas.
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