Topic: Cone Engineering "Quiet-er Core" Slip-On Muffler

[helloluketurner]

I've settled on the 18" 2.25" ID "Quiet-er Core" silencer.

http://www.coneeng.com/pdf/motorcycle/MC-finished-Mufflers.pdf

What other bits will I require..? Some sort of angled pipe to lift the silencer up a tad?



That's my motorbike. I've removed the silencer due to a rusty hole along with the collector shield, so I've been left with where the 4 pipes merge in to 1.

I want to make sure I'm 100% right as I'll be ordering it from the USA (I'm in little old England).

Cheers!

[FunJimmy]

You'll want to be sure that the Quiet-er Core muffler ID is compatible with the outlet OD of the stock header. I don't believe Core Engineering sells an angled pipe to lift the silencer up a tad. They do however sell pre-bent tube sections that may be useful or you may have to get that custom made in the UK.

I would purchase an MC-BRKT-1H3SBA weld on bracket as well.

[helloluketurner]

I've measured the OD of the stock header to be 2.125" or 2 1/8".

I came across 18° mandrel bends on their website.

http://www.coneeng.com/pdf/Header%20Kits,%20Tubing%20and%20Bends%20PDF.pdf

(4th page)

[flybox1]

A mounting tab should be welded on, otherwise its just a long lever, bouncing up and down on the head studs.

[helloluketurner]

Yeah FunJimmy mentioned that part, I've added it to the list.



That's it if I'm not mistaken.

[helloluketurner]

Ah, useful!

http://forums.sohc4.net/index.php/topic,144617.msg1647195.html#msg1647195

[evanphi]

I'd say you're on the right track... make sure the OD of you collector will fit the 18deg bend you get (the bend should fit OVER the collector)

Also make sure the bent bit will fit onto your muffler/silencer, too! Order the appropriate size muffler so that the pipe goes INTO the muffler end (HINT: It will be about the same size as the bent pipe OD ).

Have them include some stainless pipe clamps like the ones in my post you linked. They are VERY strong and will cinch things up.

You might consider cutting some short cuts into the extension pipe/muffler so the ends can compress tightly.

You can also CALL THEM UP! Tell them what you need and what you're doing, they will put together a parts kit for you... I'm sure of it. They were awesome to deal with over the phone when I called.

And good call on getting that bracket. You'll just need a bit of strapping from your Right passenger peg mount to hang the muffler from.


If things don't just slide together (which is entirely possible!) take everything to a muffler shop and have the parts expanded slightly to fit.

[helloluketurner]

Cheers Evan! That's been hugely helpful.

Calls are extortionate as I'm in England but I may have to suck it up & call them to make sure I'm correct.

I've got the OD of the collector as 2.125" (2 1/8) so I'll need an 18° mandrel bend with an OD of 2.25" (2 1/4) in order for pipe to fit OVER the collector.

If the above is correct then the pipe will have an OD of 2.25" so I can cut slots in the end and squeeze it inside the 2.25" OD muffler or buy a muffler with an OD of 2.50" and cut slots in that to clamp it over the pipe.

[Ericcb750]

I'll tell you what, I have a Cone Eng.. Quiet-er core on my 78 CB750k and that thing sounds AWESOME!! I think once you get it all mounted up that you're going to love it...Good choice. I Was recommended it by a member here Flybox who is an awesome guy and was spot on with his explanation of the muffler and sound. It's great....best of luck and i'm sure you'll love the pipe.

[evanphi]

Cheers Evan! That's been hugely helpful.

Calls are extortionate as I'm in England but I may have to suck it up & call them to make sure I'm correct.

I've got the OD of the collector as 2.125" (2 1/8) so I'll need an 18° mandrel bend with an OD of 2.25" (2 1/4) in order for pipe to fit OVER the collector.

If the above is correct then the pipe will have an OD of 2.25" so I can cut slots in the end and squeeze it inside the 2.25" OD muffler or buy a muffler with an OD of 2.50" and cut slots in that to clamp it over the pipe.

Hold it right there!

The mufflers are listed with the INNER DIAMETER for the inlet/outlet.

All you need is the 18deg mandrel bend with OUTER DIAMETER of 2.25" (thus 2.125" ID 16G steel is 1/16" thick), and the cone will have an INNER DIAMETER of 2.25" that way it'll slip right onto the mandrel bend! You might have to do a bit of fine tuning/fitting with some emery paper.

Double check on your own, but you should need the following part numbers:

Mandrel Bend: TU-1816SS-225-300
Muffler: MC-2250-18-Q-SS
Clamps: 2 of 0225T
Weld-on bracket w/ bolt and square nut: MC-BRKT-1H3SBA (Or get MC-BRKT-3SB which is the exact one I got and it fit the angle of the reverse cone perfectly Call them and ask if the one with the bolt is angled for the reverse cone)

[FunJimmy]

Weld-on bracket w/ bolt and square nut: MC-BRKT-1H3SBA (Or get MC-BRKT-3SB which is the exact one I got and it fit the angle of the reverse cone perfectly Call them and ask if the one with the bolt is angled for the reverse cone)

Exact same bracket is supplied with both.
Only difference is the bolt and square nut.

[evanphi]

Weld-on bracket w/ bolt and square nut: MC-BRKT-1H3SBA (Or get MC-BRKT-3SB which is the exact one I got and it fit the angle of the reverse cone perfectly Call them and ask if the one with the bolt is angled for the reverse cone)

Exact same bracket is supplied with both.
Only difference is the bolt and square nut.

Good to know. That's a handy dandy square nut to have!

[helloluketurner]

Spot on!

Cheers for your help, it's hugely appreciated.

I'll put an order in!

[Chachi]

That square nut would have saved me a little grief. I don't think they offered that when I got mine. It's a great muffler and the Cone folks are super nice and helpful.

Check this thread out, it's from when I had questions about the same muffler:
http://forums.sohc4.net/index.php/topic,144617.0.html

Check out the mounting tab orientation in Evan's pic in my thread link. I'm pretty sure mine is turned the opposite way (slimmer end toward rear). It probably all depends on what you're mating up to for a hanger strap and how it fits. Just dry fit everything really well before welding and test everything for fit - especially center and side stand clearance.

[Don R]

 I believe Evan got you squared away. Good Luck.

[helloluketurner]

Aye he's been very useful! As have you all.

I'm headed home this weekend so I'll get in the garage & familiarise myself with where I can mount things & such before I part with my money.

Cheers lads.

[evanphi]

Glad to be of help!