[Healeys] Following Grace continued

Bob Haskell rchaskell at earthlink.net
Sat Apr 5 09:55:49 MDT 2014


Dave,

Thanks for getting Grace back on the road.

Cheers,

Bob Haskell
AHCA 3000 Mk I registrar
http://www.ciahc.org/registry_3000mk1.php

On 04/05/2014 11:37 AM, David Porter wrote:
> ... well my Word Press blog is suffering from a change over to Windows8
> from my perfectly working XP operating system (much like Obamacare
> mandate, but I digress) so I'll add a link to John's FB Drive Away
> Cancer site to bring y'all up to date.
>   First, the engine, with the VERY expensive, but VERY nice Denis Welch
> crank, rods, pistons, flywheel is pretty damn remarkable! It is now a
> zero balance engine and revs like crazy. I'd guess red line is above
> 6000 RPM now. The rods were less than a 1/2 gram different, pistons
> within 1 gram. The crank with the extra counter weights is a much needed
> improvement over the original 60 year old technology.
>   The block was hyper decked resulting in piston protrusion of 0.42".
> However the Welch steel head gasket is 0.60 so plenty of room. The
> resulting quench zone promotes very efficient burning and keeps carbon
> build up to a minimum.
>   The performance from the old engine is quite remarkable. On the
> freeway, in traffic, at 5200RPM in 4th gear the speedometer showed
> 105MPH and was still pulling hard. I suspect it will run out of cam or
> carbs before anything else.. I'd like to know what a dyno test would
> show. A local machine shop mathematician calculated an additional 16HP
> from the narrow quench zone alone. So M spec is 110, plus the 16 plus
> the reduced weight, additional displacement and reciprocating mass has
> got to get it to 130 at least. I can tell you that from a strictly seat
> of the pants impression that it will give a good E-type a run for it's
> money!
> Dave
> https://www.facebook.com/driveawaycancernow
>
> PS if my 100 didn't disappear in the divorce I'd be saving my pennies
> for the bits that went into Grace..


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