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 > > > > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
