[Healeys] What Cam?

[rrengineer @dslextreme.com]

Kees,
     that certainly does not sound like very much weight to remove from the
flywheel.
Mike

On Wed, Feb 18, 2009 at 11:07 PM, Oudesluys <coudesluijs at chello.nl> wrote:

> Mike,
> With the mods you already did it is best to fit the hotter cam as wel. Yes,
> you will be in the higher rev range, not only because of the camshaft but
> also because of the larger carbs and better flow, however it will not be
> that dramatic.
> Lightening the flywheel does not make to much sense for a street car but if
> you would, moderately lighten your flywheel, say max. 1-1,5kg. This will
> probably not do any damage to your gearbox/diff as the engine is not highly
> tuned.
> Also make sure that all ridges and gaskets between carbs/inlet
> manifold/cilinder head/exhaust manifold are smoothed out. If not all your
> porting and polishing may be in vain.
> Kees Oudesluijs
>
>
> rrengineer @dslextreme.com schreef:
>
>> Thanks to Doug I have the specs for the 100S cam which I am told is the
>> same
>> as the 100M cam, but after reading some discussions on the list about cams
>> and flywheel lightening I am not sure what to do.  My BN2 engine is not in
>> the car yet, but the short block is assembled with a standard Moss pistons
>> and a standard 100-4 cam profile.  I still have time to change the cam as
>> I
>> have a spare to get re-profiled.  I want a streetable car with a little
>> more
>> get up and go than stock.  I will be using the larger carbs of the Lemans
>> version.  I am also getting the head ported and polished along with the
>> combustion chambers evened out in volume.  My question is, with the 100S/M
>> cam, will I have to be in higher rpm ranges to get any benefit from the
>> upgrade?  Also, using a lightened (and I don't know how much to lighted it
>> either) flywheel, am I turning this car into something which has to driven
>> hard to get the benfit while losing a nice idle?   Will the lightened
>> flywheel beat up my transmission?  That alone is a costly rebuild.
>> Mike MacLean
>> 56 BN2
>> 60 AN5
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