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 Post subject: twin su's
PostPosted: Tue Sep 13, 2011 10:09 pm 
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hi guys just wondering what set of twin carbs goes for?

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PostPosted: Tue Sep 13, 2011 10:29 pm 
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Twin HS2 setups go from about $250 up depending on condition. New sets complete are around $1100 now!! :shock: :shock:

If you buy cheap s/h ones, budget to have them reconditioned.. but that ain't cheap either if done properly.

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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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PostPosted: Tue Sep 13, 2011 10:34 pm 
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Yeah I sold twin 1.25's for $340 about 4 years ago..

Cant remember what i got for the twin 1.5's about 7 years ago.

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PostPosted: Wed Sep 14, 2011 6:26 pm 
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twin hs2 set up less air filters, new, $745 + post


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PostPosted: Wed Sep 14, 2011 6:43 pm 
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I remember that after I rebuilt my twin HS2's that counting purchase and sourcing missing bits and rebuild kits I spent $500 not counting my labour to do the rebuild.

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PostPosted: Wed Sep 14, 2011 7:05 pm 
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peterb wrote:
twin hs2 set up less air filters, new, $745 + post

The $1100 price I quoted was local, not direct import.

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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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 Post subject:
PostPosted: Wed Sep 14, 2011 10:50 pm 
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hi thanks for the replies, seems to be a range of prices. I think it might be something that will have to wait till i can afford to get one and rebuild it or buy a new one. Thanks again guys :)

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PostPosted: Wed Sep 14, 2011 11:21 pm 
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I have some split Webers :wink:


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PostPosted: Thu Sep 15, 2011 2:16 am 
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what are split webers?

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PostPosted: Thu Sep 15, 2011 8:21 am 
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`Split Webers' have 2x DCOE carbs with 1 butchered on one side (by cutting 1/2 the barrel away) so that you can fit them to a straight twin tube manifold (similar to a twin SU one).
They were made popular after the UK factory famously homologated a version in 1969? but these days I don't think they produce much (or any?) more power over a single Weber on a good long race manifold...

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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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 Post subject:
PostPosted: Thu Sep 15, 2011 9:29 am 
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Yup Dr Mini is correct, My split Webers are done the Vizard way so they are still both useable and you only need a shoft manifold with splits which makes the engine sound amazing and you can have a normal looking dash even with a decent filter.

I need to start a FS thread as I will probably never use my Mini engine parts again, I can't bring myself to do it. :(


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 Post subject:
PostPosted: Thu Sep 15, 2011 9:29 am 
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Yup Dr Mini is correct, My split Webers are done the Vizard way so they are still both useable so you only need a shoft manifold with splits which makes the engine sound amazing and you can have a normal looking dash even with a decent filter.

I need to start a FS thread as I will probably never use my Mini engine parts again, I can't bring myself to do it. :(


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 Post subject:
PostPosted: Thu Sep 15, 2011 2:18 pm 
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Kermit wrote:
hi thanks for the replies, seems to be a range of prices. I think it might be something that will have to wait till i can afford to get one and rebuild it or buy a new one. Thanks again guys :)


Kermit, You would be much better off either running a single 1 1/2 carby or a HIF44. Cheaper and easier to maintain. Twins go out of tune pretty easily. IMO


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 Post subject:
PostPosted: Thu Sep 15, 2011 2:23 pm 
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Oh ok, I have heard that. I was gonna run a single 1 and a half inch one but just thought i would look at twins. I'll more than likely go with get a 1 and a half though.

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 Post subject:
PostPosted: Thu Sep 15, 2011 4:27 pm 
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The factory split Weber setup from 68 used a Cooper S manifold.
The rules for the class said that the manifold had to remain standard.
It was not homologated, it was within the rules.


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