I would have thought that the Brits would have figured out crossflow
porting by that date.
Paul
Not sure about the exact date, but Ford had a pretty good crossflow head on
their 'Kent' engines back in the late 60's - could have been sooner.
I raced a 1600cc Kent engine that dyno'ed out at around 155hp with twin
webers, ported head and a high lift cam - still wasn't competive with the
BRE Datsuns that we ran against in the under 2.0L Trans Am.
Kenneth Waller
http://www.pentaxphotogallery.com/kennethwaller
----- Original Message -----
From: "Paul Stenquist" <[email protected]>
Subject: Re: PESO rockin'
Nice work. It should run well. How high much boost will you run and how
high is the compression ratio? It's unfortunate that pump gas is a
limiting factor there. With that port design, you almost have to have some
kind of forced induction. I would have thought that the Brits would have
figured out crossflow porting by that date.
Paul
On Oct 18, 2012, at 4:30 AM, Larry Colen <[email protected]> wrote:
Now that I've got paint on the engine compartment, I started cleaning up
the motor in preparation to installation.
As I document the progress, I kind of like this shot:
http://www.flickr.com/photos/ellarsee/8099334872/in/set-72157631773384091/
For the motorheads that have any interest in such things, between the
ported aluminum head, aluminum fidenza flywheel, aluminum back plate and
lightweight reduction gear starter, I've knocked about 50 static pounds
off the motor. Other go-fast goodies include the roller rockers, custom
cam, pauter rods, venolia pistons, and of course the supercharger from
http://www.hi-flow.com/
In the previous incarnation of the motor, which unfortunately had a
cracked iron head, I was getting a bit over 90hp on the chassis dyno, and
once saw a bit over 100hp to the ground, just before the head gasket
blew. I'm hoping that this version of the motor will hold together a bit
better and put a little over 100hp to the ground. For people not
familiar with MGBs, a rubber bumper ('76-80) MGB would put about 50hp to
the ground, a stock '69, like Jasmine would put about 65hp to the ground.
Before supercharging, I was getting a fairly consistent 75hp to the
ground. So an MGB that puts 100 to the ground is pretty quick for an
MGB. Or about average for a spec miata, which you could buy, or even
build for significantly less than I have invested in Jasmine's motor. It
must be a symptom of the same mental condition that causes me to shoot
with Pentax gear.
--
Larry Colen [email protected] sent from i4est
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