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8 & 10 cyl Bristol cars Type 407 onwards - restoration, repair, maintenance etc

Upgrading the 410 Final Drive Ratio

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Old 17-10-23, 01:41 PM
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Join Date: Jul 2008
Location: Wiltshire, UK
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My 410 has a 2.88 LSD axle. I am not sure if this was from new or from when the car was restored in the early 90s by Spencer Lane-Jones (it was his own car, not a customer restoration). Sadly my rev counter is wildly inaccurate so I cannot report accurate figures. I saw 24mpg on one trip this summer, but 21-22 is more common on a long steady run. Spencer also told me he fitted mildly faster cam, and the engine was rebored so I think is about 5.5 litres now. Still on the standard carb.
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