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standard exhaust performance
#1
I have always been intrigued by the Birkett statement in the green book suggesting long, narrow bore 7/8" ID tailpipes were best. This old forum 2014 thread is worth re-invigorating:

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Ray White's comments on replacing the large bore rear pipe of his Swallow with an 1" bore (and finding it improved) contrasts with Sandy Croall's observation that when his LWB rear pipe fell off, performance improved (it became akin to the SWB system).

Any more recent experiences from those experimenting with standard manifolds and engines? Were Austin exhausts overspecced in diameter?
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Messages In This Thread
standard exhaust performance - by JonE - 11-10-2018, 09:55 AM
RE: standard exhaust performance - by Dave Mann - 11-10-2018, 10:07 AM
RE: standard exhaust performance - by jansens - 11-10-2018, 10:47 AM
RE: standard exhaust performance - by Michael D - 11-10-2018, 04:30 PM
RE: standard exhaust performance - by Davemayle - 11-10-2018, 07:45 PM
RE: standard exhaust performance - by Bob Culver - 11-10-2018, 07:44 PM
RE: standard exhaust performance - by John Mims - 23-10-2018, 01:33 PM
RE: standard exhaust performance - by squeak - 12-10-2018, 12:33 AM
RE: standard exhaust performance - by Bob Culver - 15-10-2018, 12:37 AM
RE: standard exhaust performance - by squeak - 15-10-2018, 04:40 AM
RE: standard exhaust performance - by Dave Mann - 22-10-2018, 04:42 PM
RE: standard exhaust performance - by Jamie - 23-10-2018, 12:24 PM
RE: standard exhaust performance - by JonE - 23-10-2018, 08:21 AM
RE: standard exhaust performance - by Dave Mann - 23-10-2018, 09:57 AM
RE: standard exhaust performance - by JonE - 23-10-2018, 12:37 PM
RE: standard exhaust performance - by JonE - 23-10-2018, 02:35 PM
RE: standard exhaust performance - by AustinWood - 23-10-2018, 04:14 PM
RE: standard exhaust performance - by JonE - 23-10-2018, 04:21 PM
RE: standard exhaust performance - by Dave Mann - 23-10-2018, 06:37 PM
RE: standard exhaust performance - by JonE - 29-10-2018, 07:55 PM

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