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8 & 10 cyl Bristol cars Type 407 onwards - restoration, repair, maintenance etc |
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![]() I only have two black marks having a 407 and on this the exhaust exit via
a curved stainless steel pointing downwards at about 60 degrees for the same reason. To stop the gases bing sucked inside the car by the vacuum created by forward movment of the car. Nick. |
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![]() Thanks Kevin for your mention.
I would however challenge any engineer to devize a car design that would be able to suck exhaust fumes back into the vehicle from behind the rear bumper! As an anecdote I was recently in the Science Museum in London with my son (and was actually able to park in my old spot next door when a student at Imperial!). In the museum were of course fantastic steam engines and aeroplanes, including the Rover JET 1, but when I saw as an addition what they claimed to be a capsule that had actually landed on and returned from the moon, I thought, no, that couldn't be possible in the 1970's. I mean, consider the faulty door seals, and leaky exhausts! Where were Bristol then? With best regards, Andrew Knox. |
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![]() Bent Exhaust Tips (Tips for the unwary!)
As an aside, you will recall that the original XJ6 tail pipes had a curious 'S' bend. As you elaborated, the airflow helped direct the fumes away from the car. My father in the 80's didn't like the look of his old XJ6's tail pipes, so, you guessed it, he replaced them with some straight stainless sections. After only a few miles, it became apparent that the fumes were being reingested into the rear of the cockpit and indeed, stained the rear hood lining. The message - the factory knew what they were doing! Brett Ps Downward tips more than likely make a quieter car. |
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![]() Aero Dynes were designed for the rear window to be left open when
travelling in order that a through flow of air through the car be established, and would allow the heating to work properly. Tony Crook was always insistent that the rear window be left open as anyone who rode with him would know. One word of warning regarding the exhaust protruding beyond the rear bumper on the V8's. It can be very costly if you reverse into anything as it is very easy to break one of the exhaust manifolds, which are not easy to replace. My regards, Bellerophon |
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![]() As a child I flew regularly from Hurn airport to Cherbourg in a Bristol (3
cars and 12 passengers). I'm sure however you couldn't open the windows! The stories about their cars are getting weirder and weirder! Andrew Knox. |