[Healeys] Rear axle ratios
WILLIAM B LAWRENCE
YNOTINK at msn.com
Mon Feb 20 18:30:46 MST 2017
The original final drive ratio for the BN1 was 4.125:1. This was using the spiral bevel rear end. BN2 through BJ8 used the hypoid rear axle and the standard final drive ratio through the BJ7 was 4.11:1.
There were several different ratios available for the spiral bevel set, but I'm not sure what they were. The hypoid set was available in 3.909:1 for early non-overdrive and late (BJ8) overdrive cars and in 3.54:1 for late non-overdrive cars.
The 2660 has plenty of power to pull a higher ratio on the highway and since I am using a hypoid final drive in my car I have opted for the 3.54:1 ratio as supplied by Mike Lempert. It is very pleasant in town or on the road.
From: Healeys <healeys-bounces at autox.team.net> on behalf of Chris Scholz <drscholz at visioncenterpc.com>
Sent: Monday, February 20, 2017 3:18:16 PM
To: Jonathan Einhorn
Cc: healey list
Subject: Re: [Healeys] Rear axle ratios
I switched my 4.11 to 3.54 and was very pleased.
Sent from my iPhone
Chris Scholz OD
On Feb 20, 2017, at 8:36 AM, Jonathan Einhorn <einhornlawoffice at gmail.com<mailto:einhornlawoffice at gmail.com>> wrote:
I'm restoring a 100-4 and have several rear axle ratios: what is the best one for street driving? What was standard? Yes, it's got OD.
Jonathan J. Einhorn, Esq.
Attorney & Counselor at Law
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New Haven, CT. 06510
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