Exhaust questions... Simple upgrade not going to plan!

Got a technical query? Found another 0.02bhp? Ask/tell the world.

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Great Britain
dysondiver
Posts: 288
Joined: Thu Oct 18, 2012 1:10 pm
Location: UK

Re: Exhaust questions... Simple upgrade not going to plan!

Postby dysondiver » Sun Nov 05, 2017 12:17 pm

just mig it ,,,, a tenner will get a local welder to do it , simple job , no need for tig , it wont last for more than a year or two , but gives you time to look for what you really want ,,, ive done a lot of exhausts as temp fixes ,,
by the time you clean it and tig it properly with back purges etc its not worth the expense if you cant do it your self.
maybe a local forum member will step in and glue it together for a beer.
its not a boxer , its a 180 degree v-twin

England
KeithW
Posts: 23
Joined: Sun Dec 11, 2016 5:44 pm
Location: Hertfordshire

Re: Exhaust questions... Simple upgrade not going to plan!

Postby KeithW » Sun Nov 05, 2017 4:48 pm

Hi All, Just a question on this subject. If your replacing the stock cat with the Dan Moto pipe are there any other upgrades required.
Cheers.

England
kfrogzx7
Posts: 239
Joined: Tue Jul 15, 2014 9:25 pm
Location: Suffolk

Re: Exhaust questions... Simple upgrade not going to plan!

Postby kfrogzx7 » Mon Nov 06, 2017 5:52 am

KeithW wrote:Hi All, Just a question on this subject. If your replacing the stock cat with the Dan Moto pipe are there any other upgrades required.
Cheers.


+1
I've just paid the tax on my DanMoto Y piece ( delivery this week I hope ) and will be fitting it sometime early in the New Year.
As far as I know no other mods are required are they ?
Simon.
R1100s, R1200st, R1150rs. K100rs.

Great Britain
adam
Posts: 86
Joined: Wed Nov 15, 2017 6:40 pm

Re: Exhaust questions... Simple upgrade not going to plan!

Postby adam » Wed Nov 29, 2017 11:31 am

If you're anywhere near N.Shrop/ Welsh borders, I'll weld that up for nowt.

Great Britain
Heyho
Posts: 10
Joined: Sat Oct 07, 2017 7:36 pm

Re: Exhaust questions... Simple upgrade not going to plan!

Postby Heyho » Thu Nov 30, 2017 4:32 pm

I've tried cleaning it back to clean metal, and it's like lace. Ironic that they've used a mild steel section to connect 2 stainless sections together.

Anyway, I've picked up a carbon oval under-seat can from ebay. No idea what it's from, but I know one thing for sure, it's going to sound a bit fruitier than it did! Will update with photos once some progress is made.

Neil178
Posts: 650
Joined: Sun Aug 29, 2004 11:24 pm
Location: East Mids

Re: Exhaust questions... Simple upgrade not going to plan!

Postby Neil178 » Thu Nov 30, 2017 9:12 pm

Keith and Frog, nothing else to do exhaust wise as removing the Cat seems to be in fashion, but have a search about the air filter mods.
The engine will breath better then with both attended too.
A good winter job!

Great Britain
Mooey
Posts: 9
Joined: Tue Aug 22, 2017 7:03 pm

Re: Exhaust questions... Simple upgrade not going to plan!

Postby Mooey » Thu Dec 21, 2017 9:11 pm

I’ve ha a stainless cat replacement and twin end cans made by nrp for £350 absolute bargain I’m trying to post a vid of it but the iPad doesn’t seem to let me

England
KeithW
Posts: 23
Joined: Sun Dec 11, 2016 5:44 pm
Location: Hertfordshire

Re: Exhaust questions... Simple upgrade not going to plan!

Postby KeithW » Thu Dec 21, 2017 11:33 pm

Neil178 wrote:Keith and Frog, nothing else to do exhaust wise as removing the Cat seems to be in fashion, but have a search about the air filter mods.
The engine will breath better then with both attended too.
A good winter job!


Thanks for the info, only reason for my question was feedback from various forums suggesting re-chipping the 11s when changing the exhaust system and also an air filter mod.
I have now removed the cat and fitted the danmoto pipe which was quite a simple procedure (Lucky Me) and the bike runs fine and the exhaust sounds a bit louder.
Would be interested in any recommendations on the air filter upgrade.
Cheers

Neil178
Posts: 650
Joined: Sun Aug 29, 2004 11:24 pm
Location: East Mids

Re: Exhaust questions... Simple upgrade not going to plan!

Postby Neil178 » Fri Dec 29, 2017 10:27 pm

Search for ‘Val Singleton’ which is a Heath Robinson way of duplicating the hard to find air filter set up from the USA (SJ BMW?).
With the engine breathing better there may be a chance of it running leaner, so a temperature spoofing device should be used to make sure you don’t get detonation.
I’m certainly an amateur at this so I’m only trying to point you in the right direction!

Great Britain
Heyho
Posts: 10
Joined: Sat Oct 07, 2017 7:36 pm

Re: Exhaust questions... Simple upgrade not going to plan!

Postby Heyho » Thu Jun 14, 2018 8:15 am

Slow progress on this unfortunately, but I've managed to get a bit more done recently.

Oval carbon can from ebay - rebuilt with new acoustafil packing, a couple of stainless 45 degree mandrell bends and the services of a local man with a TIG gives me this:

Image

The mount is attached via a fabricated stainless T bracket and sits underneath the seat release catch.

Sounds great, and nowhere near as loud as I had first anticipated! Some better pics and a video when it's done.

Great Britain
dysondiver
Posts: 288
Joined: Thu Oct 18, 2012 1:10 pm
Location: UK

Re: Exhaust questions... Simple upgrade not going to plan!

Postby dysondiver » Thu Aug 23, 2018 7:32 pm

looking great
its not a boxer , its a 180 degree v-twin

Neil178
Posts: 650
Joined: Sun Aug 29, 2004 11:24 pm
Location: East Mids

Re: Exhaust questions... Simple upgrade not going to plan!

Postby Neil178 » Fri Aug 24, 2018 10:25 am

dysondiver wrote:looking great


Agreed! Never seen a single on the 1100S before and it makes it very individual.
I’m going the other way numerically and fitting a triple that has been sat in the box for over a year now.

Great Britain
Heyho
Posts: 10
Joined: Sat Oct 07, 2017 7:36 pm

Re: Exhaust questions... Simple upgrade not going to plan!

Postby Heyho » Wed Sep 05, 2018 11:34 am

Thanks guys.

I've just about finished the number plate mount, indicators and new wiring for both. Unfortunately things happen slowly here, but I'll get some pictures up of the end result soon.

Great Britain
dysondiver
Posts: 288
Joined: Thu Oct 18, 2012 1:10 pm
Location: UK

Re: Exhaust questions... Simple upgrade not going to plan!

Postby dysondiver » Sun Nov 11, 2018 1:53 pm

looking forwards to seeing them
its not a boxer , its a 180 degree v-twin


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