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Post by steve4487 on Sept 29, 2019 16:05:49 GMT
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For sale
Sept 29, 2019 17:44:16 GMT
via mobile
Post by snoopy11 on Sept 29, 2019 17:44:16 GMT
£18k........... Anyone want to buy a fuel injected crab
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Post by Penguin45 on Sept 29, 2019 23:09:49 GMT
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Post by dave1800 on Sept 30, 2019 1:39:57 GMT
Why?
David
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Post by andrewa on Sept 30, 2019 22:03:13 GMT
Just fancy a change, that’s all..maybe a 2200 next or 3 litre (again)..let’s see how we get on first. Cheers Andrew
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Post by steve4487 on Oct 1, 2019 15:23:11 GMT
Back in the day Downton tuned a 2200 which was a triple carb, twin exhaust and revved to 6500rpm. When like wotsit off a shovel and was the first time I had seen auxiliary front dampers used on a road going landcrab. Somewhere I have an Autocar road test which I'll see if I can find Steve
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Post by andrewa on Oct 1, 2019 15:44:57 GMT
Wow!
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Post by steve4487 on Oct 1, 2019 18:38:22 GMT
Just found the magazine. It was June 16th issue of Motor in 1973 entitled "More Urge for the Barge" This was a Downton tuned Austin 2200. This was a stage 3 kit that had a modified head, a double 3 into 1 free flow manifold with a proper twin exhaust system running right to the back of the car. Breathing was considerably improved by a special inlet manifold which accommodates an additional HS6 SU. Downton claimed that these mods increased power to 135 bhp. Motor's performance figures showed 0 to 60 mph at 8.9 secs, standing 1/4 mile at 16.9 secs and 0 to 100 mph at 34.6 secs. Of particular interest was that the modified engine would rev happily into the critical crankshaft torsional vibration period which was around 6,000 rpm peaking at around 8,400 rpm, that upper speed is not a mistake. As far as I can remember the 2200 was geared to about 17.4 mph per 1,000 revs in top gear. Just imagine 8,400 rpm in top, that's just over 146 mph. If it could pull 6,000 rpm that on its own would be 104.4 mph. During Motor's test this car, AAM 77K managed a best of 113.8 mph. Imagine what you could do with a 2200 if you could some how fit the longer stroke crank for the 2.6 E series engine and find the room for a turbo or 2. Food for thought. My current car is a 1959 Austin A35 with a 1275 Midget engine tubo'd and running 10 psi boost. That set up makes 140 bhp. Steve
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Post by dave1800 on Oct 2, 2019 4:48:01 GMT
I know Daniel Richmond at Downton Engineering was very clever but I wonder how he overcame the inherent design failing of the 6 cylinder engine overheating due to lack of cooling between the bores. This was done to enable the engine to be short enough to fit transversely. Increasing the power would have worsened this issue.(Actually not needed with the move to a front radiator.)
I recall reading a road test (sorry unlike Steve, I can't recall the issue) that suggested moving the radiator from the side mounting noticeably increased understeer so the six cylinder crabs weren't as agile as the fours.
David
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