[Healeys] Is a vernier cam wheel worth the money and trouble?

Bob Spidell bspidell at comcast.net
Sat May 18 10:41:50 MDT 2019

When I got my BJ8's engine rebuilt a couple years ago, I bought a DWR1 
cam for it ('slightly better than stock' according to DWM). Lister Chris 
Dimmock was kind enough to send me one of the adjustable timing sets 
that his local (to Australia) club was offering:

According to my engine builder, he needed to 'adjust' the timing by 
about 4deg in order to get the proper lift(s) spec'd for the DWR1 cam 
(no dyno'ing or road tests involved).  I was surprised that the cam was 
that far 'off,' meaning if you installed a fixed timing set you might 
have degraded performance.  I have no reason to doubt the builder, he is 
extremely meticulous and diligent (and happens to be a Kiwi and licensed 
airplane mechanic).


On 5/18/2019 9:03 AM, simon.lachlan at alexarevel.plus.com wrote:
> I took my car to a rolling road garage the other day. A splendid 
> place, just like garages used to be.
> So, to cut a long story short, they’ve suggested that I get a Vernier 
> cam wheel. (If that’s the right name).
> It seems to me that they’ll be able to “get the timing precisely 
> right” and that’s a “Good Thing”. Now, the engine will be up and the 
> cam chain cover will be off so access will be taken care of….But, will 
> it make enough difference to make it worthwhile? They’re about £150 
> over here.
> Looking at the net and Facebook etcetc, it seems that one normally:-
> Installs Vernier setup
> Get timing “just right”.
> Test drive &/or rolling road.
> Faff around with Vernier to get it more “just right”
> Test drive etcetc until one is blue in the face….
> Well, I’m not going to do that. Getting access is such a pain that 
> I’ll get it in, have it setup by an expert with all the right gear and 
> leave it. Hopefully, never to clap eyes on it again.
> To repeat, under that regime, is it worthwhile?
> Thanks,
> Simon
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