17-05-2021, 09:41 AM
Hi
As has been said changing the back axle ratios is possible but might not get you what you want.
According to Bill Williams book a car with Ruby wheels and axle ratio should run in the mid forties mph when the engine is turning at 3000 rev. Even reducing the back axle ratio to an early box or Chummy ratio will only reduce the revs by a couple of hundred.
Changing the gearbox ratios for ones more to your liking is possible. Talk to Andy Bird http://austinsevengearboxservices.co.uk/ This won’t change the revs in top mind.
Probably the easiest route is to quieten the engine and cab. Check for rattles and clatter from the engine, gearbox and back axle. Then put some sound felt under the carpets and bulkhead.
Cheers
Howard
As has been said changing the back axle ratios is possible but might not get you what you want.
According to Bill Williams book a car with Ruby wheels and axle ratio should run in the mid forties mph when the engine is turning at 3000 rev. Even reducing the back axle ratio to an early box or Chummy ratio will only reduce the revs by a couple of hundred.
Changing the gearbox ratios for ones more to your liking is possible. Talk to Andy Bird http://austinsevengearboxservices.co.uk/ This won’t change the revs in top mind.
Probably the easiest route is to quieten the engine and cab. Check for rattles and clatter from the engine, gearbox and back axle. Then put some sound felt under the carpets and bulkhead.
Cheers
Howard