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Author Topic: Long Indian vs. Short Briton  (Read 1261 times)

Maturin

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Long Indian vs. Short Briton
« on: September 01, 2010, 07:16:25 PM »
When Hitchcock offered it´s Classic EFI silencer as a special offer I couldn´t resist. Now the long Indian is gone and replaced by a short Briton.
The difference in sound is remarkable. Usually it was impossible in normal traffic to turn heads by just letting her rip. That changed. Although its possible to contain the noise, it barks quite a bit when you approach full throttle. No way to pass the TÜV test - but as installment was easy, refitting the old one is no problem. As you can see on the photos the rear carrier on the footrest is not used anymore, the flexible arm is attached to the front carrier. The silencer´s diameter fits accurately over the exaust pipe, the clamp fits aswell, although the tea drinkers used some odd-sized Allen screw that normal people do ,of course, replace  ;D.
There is a sensible difference in power output now, the torque in the medium and especially upper rpm-range gained and the engine is more willing to rev now. In adition, at low revs the output now is more cultivated so I can accerlerate from idle on with few vibrations or wobbling.
To my surprise backfiring is virtually non existing. My test ride was about 50 km and I heard a loudish bang once, when the engine was half-warm. Thats was it. Nothing the neighbors will open fire for.
The machining is quite good, the chromium gives the impression of beeing solid. 
2010 G5
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r80rt

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Re: Long Indian vs. Short Briton
« Reply #1 on: September 01, 2010, 08:27:34 PM »
It looks great too!
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Cabo Cruz

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Re: Long Indian vs. Short Briton
« Reply #2 on: September 01, 2010, 08:50:24 PM »
That's a really good looking muffler, Br. Maturin!
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Keep the shiny side up, the boots on the pegs and best REgards,

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Sub

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Re: Long Indian vs. Short Briton
« Reply #3 on: September 04, 2010, 02:09:07 AM »
I have one of these waiting to go on to replace my megaphone emgo. Hopefully I like it more! It looks quite restrictive - sort of a cork screw type affair down the length and a tiny center path that's free.

ES-335

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Re: Long Indian vs. Short Briton
« Reply #4 on: September 07, 2010, 09:51:48 PM »
I have one of these coming via mail, probably this week. Looking forward to it. When I changed my rear chain i tried to get rid of that original torpedo in order to ease up things. But did not put too much effort on that because I managed the task otherwise.
Any special hints to remove that long original silencer, please. i felt it was stuck. Here in Finland there is not so much biking season left (weather), maybe a month?

r80rt

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Re: Long Indian vs. Short Briton
« Reply #5 on: September 07, 2010, 09:55:04 PM »
Remove the heat shield, the shield is attached to the muffler with 3 screws and there is a clip attaching it to the head pipe.
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Maturin

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Re: Long Indian vs. Short Briton
« Reply #6 on: September 07, 2010, 10:15:07 PM »
@ ES-335: Don´t forget special tool No.1: rubber hammer!

Update to backfiring: Happens rarely, but only within 2 minutes after start irrespective of engine temperature. Maybe the mapping needs this time to adjust itself.
« Last Edit: September 07, 2010, 10:20:25 PM by Maturin »
2010 G5
A Garage without a Bullet is a empty, barren hole.

When acellerating the tears of emotion must flow off horizontally to the ears.
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Sub

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Re: Long Indian vs. Short Briton
« Reply #7 on: September 07, 2010, 10:18:48 PM »
Yup, the exhaust is pretty easy to remove.. lots of wiggling required to get the pipe off.

ES-335

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Re: Long Indian vs. Short Briton
« Reply #8 on: September 12, 2010, 09:29:48 PM »
All right, nowadays my maroon C5 puffs burned gas through that same type of silencer. Looks good (and less like Jawa 250 cc), sounds nice too. Lots of wiggling, rubber hammer with thick metal pin was involved in order to get the old torpedo off. Noticed a fracture in the front part of the heat shield, can not imagine when that had happened. Not during this workout though.
There is some backfiring ALSO with new the silencer, my driving style is that I use a lot motor braking, shifting gears down before red traffic light etc. But backfiring pops are not that loud and so far some fun. Performance gain is like Maturin described, I would like to add that also motor braking is not so intense/stiff with the new pipe. Something to wonder was the grand weight of the old silencer.

Sub

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Re: Long Indian vs. Short Briton
« Reply #9 on: September 13, 2010, 12:51:11 PM »
Es did you remove the heat shield before removing the pipe?

ES-335

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Re: Long Indian vs. Short Briton
« Reply #10 on: September 13, 2010, 08:47:25 PM »
Es did you remove the heat shield before removing the pipe?

No, as I saw it was not necessary. At least when there was this fracture already in the shield and the front end of it was loose. Well at some point I tried to unscrew one of the allen ones but the hexagonal shape gave up though the allen key was the right size. I did not worry about that too much since a new silencer without heat shield would be installed.
Maybe I broke the heat shield earlier when I changed the rear chain and had to loosen the pipe somewhat. But I did not notice that then. But I believe that the heat shield front connection gave up sometimes later on.
Mr Scotty reported about same kind of heat shield connection failure in another recent thread.
« Last Edit: September 13, 2010, 08:52:53 PM by ES-335 »

Sub

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Re: Long Indian vs. Short Briton
« Reply #11 on: September 13, 2010, 08:56:50 PM »
Thats definitely where the failure must have come from. You would have found if you took the allen screws off that the shield loops into that little clip thats welded onto the header pipe. Once the clamp is loosened, and the screws are out, the shield pipe slides right off. It caught me at first as well because it seems like its loose enough to get off. You definitely dont need to hammer the pipe off, it just slides off with a bit of wiggling.

Ducati Scotty

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Re: Long Indian vs. Short Briton
« Reply #12 on: September 13, 2010, 09:33:34 PM »
Those bolts can be hard to get out.  I stripped one head removing them.  Fasteners that get that hot deteriorate quickly, even when they are stainless steel.

Scott

ES-335

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Re: Long Indian vs. Short Briton
« Reply #13 on: September 13, 2010, 09:49:57 PM »
@ sub:
all right, but I would like to pinpoint that the original silencer did not come quite easily off (in this case) though the heat shield front connection was already earlier busted and there was this fracture in the shield front part.. It backed off first a couple of centimeters then more persuasion needed. There was some rusty looking gunk layer on front pipe connection area where silencer slides on.
In July when I changed the rear chain it was possible that being eager, ignorant and focused on the chain job I twisted the silencer and heat shield connection to a breaking point or at least close to it.

Hitchcock´s silencer input has a wider diameter and slided on easily. The clip was almost too big, not much gap left when connection came tight.
« Last Edit: September 13, 2010, 09:56:51 PM by ES-335 »