Author Topic: exhaust  (Read 917 times)

Offline Morala

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exhaust
« on: December 09, 2024, 11:25:48 PM »
Hi everyone, can somebody explain the reason for the rubber connector  that joins the two silencers on my 1974 550, thanks for any advice you can give me.

Offline ozzybud

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Re: exhaust
« Reply #1 on: December 09, 2024, 11:55:06 PM »
Likely similar reasons dual exhaust cars have "H'" pipes

here is an AI answer for h pipes.   likely gives it a better sound.

Cars have H-pipes in their exhaust systems to help equalize exhaust pressure between the two sides of the engine by creating a crossover point, which can lead to improved engine performance, particularly by enhancing low-end torque and smoother power delivery, especially on vehicles with dual exhaust systems; essentially, the H-pipe allows exhaust pulses from one side of the engine to interact with the other, promoting better gas flow.
« Last Edit: December 10, 2024, 12:05:44 AM by ozzybud »
1976 Z50 YELLOW
1970 CT70 BLUE
1971 CT70H ORANGE
1972 CT70H GREEN
1973 CL200 BLUE
1973 CB350F RED
1975 CB360T RED
1975 CB400F BLUE
1975 CB550 ORANGE
1976 CB750F RED

Offline Bryanj

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Re: exhaust
« Reply #2 on: December 10, 2024, 12:02:12 AM »
Somebody in Hondas R&D in the late 60's worked out you got a slight increase in power with it fitted

Offline SteveD CB500K0

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Re: exhaust
« Reply #3 on: December 10, 2024, 06:51:59 AM »
Bryan, have you got “convert characters to emojis” set in your PC?


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2022 Tiger Sport 660
1971 CB500K0

Offline deltarider

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Re: exhaust
« Reply #4 on: December 10, 2024, 08:23:32 AM »
Somebody in Hondas R&D in the late 60's worked out you got a slight increase in power with it fitted
Yes, when these 'balance tubes' are more towards the end, there's a slight increase in high rpm's, the more towards the head, you gain somewhat in the lower range. That's the idea. Personally I don't think ours make much difference. After all... Honda dropped them when they launched the K3's.

Offline Bryanj

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Re: exhaust
« Reply #5 on: December 10, 2024, 10:57:55 AM »
Absolutely no idea what you are talking about Steve

Online McCabe-Thiele (Ted)

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Re: exhaust
« Reply #6 on: December 10, 2024, 11:05:54 AM »
Nor me.
Honda CB400NA Superdream (current money puddle)
Honda CB500 K1 (second money pit)
https://www.sohc.co.uk/index.php/topic,28541.0.html
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html
This is a neat 500 restoration in the USA.
http://forums.sohc4.net/index.php/topic,151576.msg1731556.html#msg1731556

Offline SteveD CB500K0

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Re: exhaust
« Reply #7 on: December 10, 2024, 11:54:03 AM »
Somebody in Hondas R&D in the late 60's worked out you got a slight increase in power with it fitted


Clearly a phone thing...


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2022 Tiger Sport 660
1971 CB500K0

Offline Bryanj

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Re: exhaust
« Reply #8 on: December 10, 2024, 12:34:32 PM »
Well i was on my dumfone when i wrote it, the pc is still running 98 and the laptop 7!

Offline Morala

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Re: exhaust
« Reply #9 on: December 10, 2024, 06:55:15 PM »
thanks for all the advice, was wondering if the connectors can be removed without causing any problems as it is a real bore trying to line the connectors up so would it be possible to seal the openings on the exhausts or will it cause the bike to run badly cheers.

Offline Bryanj

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Re: exhaust
« Reply #10 on: December 10, 2024, 09:16:31 PM »
Probably not, only the nit pickers will be upset

Offline Murf

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Re: exhaust
« Reply #11 on: December 11, 2024, 11:59:21 AM »
As Bryan says leave them fitted or you will be harassed by the classic bike police every time you take it out 😄😄.  Well the lack of them will definitely be pointed out to you. 

I haven’t got a 5mm diameter red dot 🔴 painted on the front brake caliper of my CBX and I am always being told about  the error of my ways.  Now I have become stubborn and won’t put it on 😂

Offline Sesman

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Re: exhaust
« Reply #12 on: December 11, 2024, 12:56:14 PM »
Hey, Murf. Put two red dots on. That should mess with their heads. Then tell them it’s an American model!

Offline Martin6

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Re: exhaust
« Reply #13 on: December 11, 2024, 01:27:19 PM »
Or HRC.

Offline Sesman

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Re: exhaust
« Reply #14 on: December 11, 2024, 01:38:11 PM »
😁😁😁

 

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