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Re: [Spridgets] Was: Re: Classic Motorsports Midget Project,

To: bugeye15@hotmail.com, spridgets@autox.team.net
Subject: Re: [Spridgets] Was: Re: Classic Motorsports Midget Project,
From: WeslakeMonza1330@aol.com
Date: Mon, 31 Aug 2009 07:09:51 EDT
Ift it's based on an iron 7 port head then the design and origin was  
scandanavian not Mini Spares.  Still that doesn't help.  The iron 5  port 
design 
was well established but the re-work by Pierce's contactors didn't  improve 
the flow.
 
Weslake-Monza 1330
 
In a message dated 31/08/2009 02:55:31 GMT Daylight Time,  
bugeye15@hotmail.com writes:


Interesting that you say that the MGB X-flow head isn't a Pierce  design.
It appears that "new" A series head isn't a pierce design  either.
The email I have says that it is similar to the MiniSport design  head.
it appears to me that it is the same as the Minisport but Aluminum  instead 
of cast iron,
and funded by Pierce and Dr. Ferrillo
This is what  Minisport has to say about their X-flow head.

Product Description:
Image Illustration Only  

Cast in iron to the highest standards, this is truly a cylinder  head to 
enhance any performance engine from fast road up to full race  specification. 
It has many fantastic features that make it one of the most  attractive 
additions to any Mini, not least of all that it fits under the  original bonnet 
without modification.

Its advantages over other heads  of this breed make it the winning choice 
for the original A-series tuner.  Using 7 ports (4 inlets, 3 exhausts) 
optimizes power achievement along with  compatibility with all the currently 
available 5 port performance parts.  

Twin inlet manifolds are cast one piece with the head, and in standard  
form these accept two twin barrel side draught 40mm carburetors, or  
alternatively they can be opened out to suit larger 45mm  carburetors.
Retaining the 3 exhaust ports allows any widely  available _ A _ or _ A+ _ 
series type exhaust manifolds and systems to be  used. 

Likewise any A-series cam (standard or competition) and any  valve train 
components fit straight on. 

Thanks to 1.2mm of extra space  between valve centerlines, this head also 
accepts big valves. Or if standard  to slightly oversize valves are used, the 
risk of cracking between inlet and  exhaust are greatly reduced. 

The 7 port cross flow head has shown  great success in real competition, as 
it was fitted to all the top Danish team  works cars. 

Under tests carried out on a standard (with the exception  of 1.5mm 
rockers) MG Metro, the head increased the maximum power to 100 HP.  This huge 
increase is due to the use of 4 inlet ports and the cross flow  construction. 

We also have a 7 port head fitted to a hill climb 1380  Mini, with a full 
race engine and Weber Alpha injection system, which is  producing 150bhp +, 
with only a 10:1 compression ratio. So, as you can see the  potential is 
massive!!!
..........



As you know, I am  far from an expert on these things, just passing along 
some info.
If I had  the funds, I would like to try it.

Brian S.
Bugeyeracer finally  resto'ed!
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