What is recommended size of exhaust pipe for mild 1275 also has lcb extractors I think 1 3/4

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77 Leyland Clubman
1293cc, LCB extractors, pulsar dizzy (recurved), cooper s disc brakes, 40DCOE Weber

I have a nice 1100 with LCB 1 3/4 to a 2" Muffler straight throu center exit and got a good Low tone and lost no power. I know someone else who has a similar set up but a side exit but a much bigger size and he's also happy.
I needed to change the muffler on the Van I have just put on the road now

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Stop Licking the Dog...I Don't Care Who Started It

For a road car, 1-3/4" is the way to go unless it's a monster...

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Simon

The adventures of an owner builder in the Tallarook Ranges

I'd say either 1 1/2 or 1 3/4.

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Respect mine and I'll respect yours.

1-3/4". Going bigger on a mild 1275 can give less power, not more.
Note that sizes are measured on the outside diameter of exhaust `tubing', not the inside (as water pipe is)..

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

1/3/4, centre hotdog and rc40.

still noisy enough m8.

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PrOuDlY aSkInG qUeStIoNs FoR uR aMuEsMeNt