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min13k
 Post subject: 7 port head
PostPosted: Wed Aug 04, 2004 2:20 pm 
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I DWIVE A BIG TWUCK
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sorry arron for stealing this but i think the good doctor will love this
http://www.users.globalnet.co.uk/~forst ... 7_port.htm
makkka

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drmini in aust
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PostPosted: Wed Aug 04, 2004 5:56 pm 
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Rare as rocking horse droppings now.... :wink:

Alexander stuff was good, but the works cars went with Arden 8 ports in 1968 I believe. At least you can still buy those, if you got the $$$$.

Now where did I put that K100 or K1100 bike head... oh yeah, I was dreaming again.. 8)

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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min13k
 Post subject:
PostPosted: Wed Aug 04, 2004 6:22 pm 
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hmmmmm think might have to look around for one of these heads doc
the bmw one that is .....
o btw if you put the bimmer heads on will you take the sticker of the back of the matic lol
makka

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drmini in aust
 Post subject:
PostPosted: Wed Aug 04, 2004 6:28 pm 
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I'll edit it to:
Real Mini!
Only a few BMW parts inside..

:P

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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min13k
 Post subject:
PostPosted: Wed Aug 04, 2004 7:11 pm 
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haw haw haw
makka

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Meck
 Post subject:
PostPosted: Wed Aug 04, 2004 7:17 pm 
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848cc
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Is there much work required on the BMW motorbike head to get it to work??

[EDIT] - Also how much faster would it make it go?
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Anto
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PostPosted: Wed Aug 04, 2004 7:40 pm 
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He he I've got a 16 valve K series head sitting in the garage! Shame about the rest of the bike connected to it.....
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min13k
 Post subject:
PostPosted: Wed Aug 04, 2004 7:47 pm 
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yeah you'll have to spend time removeing them......
then sell whats left and buy a real bike
makka

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Anto
 Post subject:
PostPosted: Wed Aug 04, 2004 7:49 pm 
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real bike? I quite like this one! (not that it belongs to me or anything)
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min13k
 Post subject:
PostPosted: Wed Aug 04, 2004 7:52 pm 
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ducati :twisted:

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Anto
 Post subject:
PostPosted: Wed Aug 04, 2004 7:53 pm 
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okay point taken :)
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drmini in aust
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PostPosted: Wed Aug 04, 2004 8:54 pm 
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Meck wrote:
Is there much work required on the BMW motorbike head to get it to work??

[EDIT] - Also how much faster would it make it go?


Have a look on www.miniman.com.au
Matt was building one, has some pics there.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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68matic
 Post subject:
PostPosted: Wed Aug 04, 2004 9:31 pm 
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hi can someone define:
cross flow
7ports/8ports

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drmini in aust
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PostPosted: Wed Aug 04, 2004 9:42 pm 
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Standard Mini head is 5 ports, all on one side of head. 4 cylinders share 2 inlet ports, and centre exhaust port is shared by cylinders 2 & 3.

7port head is crossflow, inlets one side and exhausts the other. Inlets (4) are separate but the centre exhaust is shared by cylinders 2 & 3.

8 port head is crossflow, all ports separate for each cylinder. :wink:

<edit> 7 or 8 port heads give a bit more power but cost a fortune. In the meantime, the power got from the humble 5 port is increasing. Over 150HP can be had from a 1300cc 5 port race motor these days.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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9YaTaH
PostPosted: Wed Aug 04, 2004 10:35 pm 
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drmini in aust wrote:
8 port head is crossflow, all ports separate for each cylinder. :wink:


must find that website again...... :roll:

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