[Healeys] FW: Calibrating Speedo for 3.55:1 Rear Axle

Thu May 26 11:02:32 MDT 2022

Sorry, I meant to “reply all” and didn’t notice the “healey-bounces”  What is that, anyway?

From: BJ8Healeys [mailto:sbyers at ec.rr.com] 
Sent: Thursday, May 26, 2022 1:00 PM
To: 'Alan Seigrist'; 'Roger Grace'
Cc: 'daveimo2 at bellsouth.net'
Subject: RE: [Healeys] Calibrating Speedo for 3.55:1 Rear Axle

A friend had these made up to calibrate for  a 3.5 diff in a BJ8.  They are plastic film – “static cling”.

He may have some of them left.  If interested, contact Dave Leonard.

Steve Byers

HBJ8L/36666

BJ8 Registry

AHCA Delegate at Large

Havelock, NC   

From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Alan Seigrist via Healeys
Sent: Tuesday, May 24, 2022 9:19 PM
To: Roger Grace
Cc: Ken Fleming via Healeys
Subject: Re: [Healeys] Calibrating Speedo for 3.55:1 Rear Axle

Another elegant option is to get small stickers for the 3-4 key speeds and just put them on the speedo glass.  Mileage will still be a skosh off but you will know how fast you are going.

This is what we do to mark Kph on our speedos in HK, fully accepted for MOT.

On Tue, 24 May 2022 at 11:39 PM, Roger Grace <roggrace at telus.net> wrote:

I am very happy with my electronic replica built by Speedy Cables in Wales. Face is near identical to original BJ8 and no one has ever noticed. You do however need to fabricate a bracket for a sensor or use a pulse transducer attached to the cable. -VE ground only.

Of course it is dead accurate !

rg

On Tue, May 24, 2022 at 8:20 AM Harold Manifold via Healeys <healeys at autox.team.net> wrote:

Thanks for a number of good replies. It seems this is more complicated than I first thought. The car has a USB connection and will use an iPhone Speedometer App and see how that works. 

Harold

From: Jim Ryan <mailto:ryan at jimryan.com> 
Sent: Tuesday, May 24, 2022 6:28 AM
To: David Nock <mailto:healeydoc at sbcglobal.net>  BCS
Cc: Harold Manifold <mailto:manifold at telus.net> ; Ken Fleming via Healeys <mailto:healeys at autox.team.net> 
Subject: Re: [Healeys] Calibrating Speedo for 3.55:1 Rear Axle

What about a GPS speedo if you aren't concerned about original?

On Mon, May 23, 2022, 12:26 PM David Nock BCS via Healeys <healeys at autox.team.net> wrote:

There are 2 choices. Either have the speedo re calibrated internally or install an in line ratio box.

David Nock
healeydoc at sbcglobal.net
209 948 8767
www.britishcarspecialists.com

Help us have our Founder Norman Nock inducteed into the 
British Sportscar Hall of Fame, You can vote for your favorites 
by visiting the site at.
www.britishsportscarhalloffame.org

From: Harold Manifold via Healeys 

Sent: Monday, May 23, 2022 8:45 AM

To: Ken Fleming via Healeys 

Subject: [Healeys] Calibrating Speedo for 3.55:1 Rear Axle

Hello,

I have changed the rear axle ratio on my BT7 from 3.91:1 to 3.55:1. Is there an easy way to correct the speedo for the 3.55:1 rear axle?

Harold

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