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57_BN4
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Hi again,
While I am digesting the consequence of forking out 10k for a new chassis, in the other workshop the mechanicals are coming apart one by one. Last night I pulled down both diffs I have- a 3.54 from an Austin sedan of some sort, and the 4.1 from the car, unopened since 1957. The sedan diff seems to have been used for burnouts as the cross pin was seized to one spider gear and had sheared off the retaining pin. This left the shaft retained only by the seized-on spider gear and so has worn the holes in the cage housing very oval. Hopefully the main gears have survived ok.
Is the general consensus still that 3.54 is the better ratio for a BN4 with OD? My Zephyr has a 3.9 + OD and I wouldn't want any taller as it only has 3 gears and often requires first gear on-the-fly. Does first gear get used much in a Healey?
Second potential option is a Quaife helical gear ATB
I have no intention of competitively racing the car but what effect/improvement would an ATB diff make to enthusiastic driving? I spent a couple of years tootling around in a Triumph Vitesse and would have happily killed somebody for an LSD at times due to their silly-swing rear suspension. What is the Healey like for lifting the inside tyre in a corner?
Appreciating your help,
Andy.
While I am digesting the consequence of forking out 10k for a new chassis, in the other workshop the mechanicals are coming apart one by one. Last night I pulled down both diffs I have- a 3.54 from an Austin sedan of some sort, and the 4.1 from the car, unopened since 1957. The sedan diff seems to have been used for burnouts as the cross pin was seized to one spider gear and had sheared off the retaining pin. This left the shaft retained only by the seized-on spider gear and so has worn the holes in the cage housing very oval. Hopefully the main gears have survived ok.
Is the general consensus still that 3.54 is the better ratio for a BN4 with OD? My Zephyr has a 3.9 + OD and I wouldn't want any taller as it only has 3 gears and often requires first gear on-the-fly. Does first gear get used much in a Healey?
Second potential option is a Quaife helical gear ATB
I have no intention of competitively racing the car but what effect/improvement would an ATB diff make to enthusiastic driving? I spent a couple of years tootling around in a Triumph Vitesse and would have happily killed somebody for an LSD at times due to their silly-swing rear suspension. What is the Healey like for lifting the inside tyre in a corner?
Appreciating your help,
Andy.