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PostPosted: Mon Sep 13, 2010 11:03 pm 
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Bimmer Twinky
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blue_deluxe wrote:
Thats getting very interesting now, looks like you could buy the head with the webers, sell those and inject it with the money from selling.

All very interesting indeed.


well,,, not quite cover it,,, but go a damn good way towards it

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.


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PostPosted: Mon Sep 13, 2010 11:04 pm 
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Bimmer Twinky
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Ah crikey i only clicked on here to say that you could go for a set of motorbike throttle bodys & fuel rail & reg etc pretty damn good value from the bike wreckers or even e-bay

there , i said it :-) now stop disstracting me :-) crickey i`m getting to be like my old man running off on a tangent, blabbering about other un-related crap, talking about the good ol days & how long do you think i`ve been doing this stuff Matthew? & if you knew what you were doing you`d have had that new engine done ages ago & i would have done it this way & made that thing do 2 different things & ,,, oh,,, where are we,,, what were we talking about? who are you & what are you doing inside my microwave oven anyways???

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.


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PostPosted: Tue Sep 14, 2010 7:55 pm 
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1275cc
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TheMiniMan wrote:
Ah crikey i only clicked on here to say that you could go for a set of motorbike throttle bodys & fuel rail & reg etc pretty damn good value from the bike wreckers or even e-bay

there , i said it :-) now stop disstracting me :-) crickey i`m getting to be like my old man running off on a tangent, blabbering about other un-related crap, talking about the good ol days & how long do you think i`ve been doing this stuff Matthew? & if you knew what you were doing you`d have had that new engine done ages ago & i would have done it this way & made that thing do 2 different things & ,,, oh,,, where are we,,, what were we talking about? who are you & what are you doing inside my microwave oven anyways???


are you saying matt that with this head instead of the webbers, you could put those bike carbs on it that you have on the twinky?

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Bluey-1973 Clubby - 1330, high lift, big cam, 7 port madness in progress..

Gumby-1978 Minivan, British Racing Green - 1310, high lift, mild cam, enlarged porting and chamber shape with big valve head, supercharged build in ever slow progress!


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PostPosted: Tue Sep 14, 2010 8:56 pm 
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Bimmer Twinky
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Lockie91 wrote:
TheMiniMan wrote:
Ah crikey i only clicked on here to say that you could go for a set of motorbike throttle bodys & fuel rail & reg etc pretty damn good value from the bike wreckers or even e-bay

there , i said it :-) now stop disstracting me :-) crickey i`m getting to be like my old man running off on a tangent, blabbering about other un-related crap, talking about the good ol days & how long do you think i`ve been doing this stuff Matthew? & if you knew what you were doing you`d have had that new engine done ages ago & i would have done it this way & made that thing do 2 different things & ,,, oh,,, where are we,,, what were we talking about? who are you & what are you doing inside my microwave oven anyways???


are you saying matt that with this head instead of the webbers, you could put those bike carbs on it that you have on the twinky?


Lockie,,, yes,,, you could,,, but my point was that it is easy & neat & simple & nice & cute & effective & common sense to put "Injection" on it,

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.


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 Post subject:
PostPosted: Tue Sep 14, 2010 9:57 pm 
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1275cc
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Location: Brisvages and the Goldie, the place to be..
TheMiniMan wrote:
Lockie91 wrote:
TheMiniMan wrote:
Ah crikey i only clicked on here to say that you could go for a set of motorbike throttle bodys & fuel rail & reg etc pretty damn good value from the bike wreckers or even e-bay

there , i said it :-) now stop disstracting me :-) crickey i`m getting to be like my old man running off on a tangent, blabbering about other un-related crap, talking about the good ol days & how long do you think i`ve been doing this stuff Matthew? & if you knew what you were doing you`d have had that new engine done ages ago & i would have done it this way & made that thing do 2 different things & ,,, oh,,, where are we,,, what were we talking about? who are you & what are you doing inside my microwave oven anyways???


are you saying matt that with this head instead of the webbers, you could put those bike carbs on it that you have on the twinky?


Lockie,,, yes,,, you could,,, but my point was that it is easy & neat & simple & nice & cute & effective & common sense to put "Injection" on it,


oh for sure, i agree with you. My only thought was that maybe this would be a slightly cheaper option to go for, temporaily for us poor people :( to have the head on and running on the car, with those bike carbs and manifold you have.. UNTIL the savings appear for either the twins or the injection.. if you get my drift? how much are those bike carbs and manifolds from the wreckers roughly? the manifold wont have the same bolting mounts as the head will it?

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Bluey-1973 Clubby - 1330, high lift, big cam, 7 port madness in progress..

Gumby-1978 Minivan, British Racing Green - 1310, high lift, mild cam, enlarged porting and chamber shape with big valve head, supercharged build in ever slow progress!


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 Post subject:
PostPosted: Tue Sep 14, 2010 10:18 pm 
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Bimmer Twinky
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check e-bay or ring the bike wreckers

here`s one set of yamaha carbs on e-bay , but there`s plenty more , all over the place cheap as chips

http://cgi.ebay.com.au/Yamaha-Hitachi-Carbs-4-cyl-XJ-650-750-/200518042867?pt=AU_Motorcycle_Parts_Accessories&hash=item2eafce84f3

or better still , here--->

http://shop.ebay.com.au/i.html?_nkw=Zx9+carbs&_sacat=0&_odkw=Zx9+carbys&_osacat=0&bkBtn=&_trksid=p3286.m270.l1313

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.


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 Post subject:
PostPosted: Mon Sep 20, 2010 9:02 pm 
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998cc
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OK so the valve springs supplied with this head will not work with 1.5rr.
With my 266 cam the valve springs will bind at 1.4rr at a pressure of 200lbs. Even worse with 1.5 r.rockers
Tried some CAEA 526 spings and the installed height is only 1.26, not 1.42 which is recommended. The seat pressure is ok but the nose pressure is over 250lbs.
Emailed MED and they recomended not to machine out under the valve spring. They modify these heads, though they said thier castings from Pierce are different.
So off to see the guy doing the work for me tommorrow with some standard Cooper S dbd Vlv spring to see how they measure up for use with 1.5 rr. Otherwise his recomendation is to machine about 1mm from the valve seat to get the valve up higher to alter the spring pressure then try the CAEA 526 springs.

Anyone else sorting out thier 7 port, or got it running yet?
Be good to hear your findings! Cheers!

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PostPosted: Mon Sep 20, 2010 11:47 pm 
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848cc
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have you tried fitting the linkage yet? I had a play with mine tonight and its a right mess, lots of modifying to get it to work properly.


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PostPosted: Tue Sep 21, 2010 1:15 pm 
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998cc
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Im using Dellortos. They came with a linkage that works fine. Just shortened the actuator on the R H carb wheel.

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Now with 2 extra ports!


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PostPosted: Thu Sep 30, 2010 5:02 pm 
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1360cc
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For anyone deciding to just bolt one of these complete heads on "out of the box", please make sure you clean the head properly. I have found quite a few bits of swarf inside the ports :!:

Now for my question, I believe my cam is a Kent MD296SP although I haven't checked.
How much of a disadvantage will the Scatter Pattern be on the seven porter?
I know the scatter cams were made to suit the vagueries of the 5 port, but if there is little to be gained I won't bother going to the expense of changing cams.

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PostPosted: Thu Sep 30, 2010 5:12 pm 
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998cc
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I'd imagine you're not going to sacrifice much power, and the exhaust timing of the scatter cam will still suit the siamesed exhaust port in the middle.

Still I can't help thinking the playing around with timing they did to try and offset the effects of a siamesed intake isn't going to help power much with 4 separate intakes....

Can't imagine too many people have had to ask themselves that question!

cheers

Jacob

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'69 Morris 1100 S - Dinged by a bus, in shed under repair
'64 Morris 1100 - Early 1100, long term project



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 Post subject:
PostPosted: Thu Sep 30, 2010 7:52 pm 
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998cc
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MD296SP would not be my choice for a 7 port cylinder head. Reason being believe that only the intake timing is scattered on that cam, exhaust timing is not. MD286SP too. Vizard's SPVP4 scatter cam is the same, only intake timing is scattered.

Vizard's original scatter cam MD290SP was scattered on both intake and exhaust and was a fantastic cam in a 5 port, ran one in the Black S for over 10 years. Loved that cam.

Talk to GR, he will be able to advise you on a suitable cam for the 7 port and whether the 296SP is suitable.

Good luck with it. Let us know how you get on.

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 Post subject:
PostPosted: Sat Oct 23, 2010 11:33 am 
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848cc
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Hi. Has anyone got one of these going yet? Very keen to see dyno figures...

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PostPosted: Sat Oct 23, 2010 12:35 pm 
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1275cc
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I'm still collecting parts ;)


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 Post subject:
PostPosted: Sat Oct 23, 2010 8:33 pm 
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THIS SPACE FOR RENT
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TheMiniMan wrote:
check e-bay or ring the bike wreckers

here`s one set of yamaha carbs on e-bay , but there`s plenty more , all over the place cheap as chips

http://cgi.ebay.com.au/Yamaha-Hitachi-Carbs-4-cyl-XJ-650-750-/200518042867?pt=AU_Motorcycle_Parts_Accessories&hash=item2eafce84f3

or better still , here--->

http://shop.ebay.com.au/i.html?_nkw=Zx9+carbs&_sacat=0&_odkw=Zx9+carbys&_osacat=0&bkBtn=&_trksid=p3286.m270.l1313


can you split them?

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