Sounds like the carbs and the cam cancel each other out as far as mileage
goes.
Mike
On Wed, Feb 18, 2009 at 2:32 PM, Alan Seigrist <healey.nut@gmail.com> wrote:
> Mike -
>
> For reasons I won't get into, I ended up putting H6 carbs on my stock BN1
> motor.
>
> The result was improved power and improved mileage! 25+ mpg!
>
> I think the M cam will improve horsepower about 10% and reduce mileage
> about ... 10%
>
>
> On 2/19/09, rrengineer @dslextreme.com <rrengineer@dslextreme.com> wrote:
> > 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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> >
>
> --
> Sent from my mobile device
>
> Alan
>
> '52 A90
> '53 BN1
> '64 BJ8
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