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not seen this done before

02GF74 - 9/11/12 at 08:08 PM

you have to be pretty brave when getting the hack saw ..... (pic is linky)
Works Mini Cooper S MK1 Mk2 Split Weber 45 DCOE Special Tuning Works Longman | eBay

steve m - 9/11/12 at 08:11 PM

OMG

what a waste of a good.........................hacksaw blade

Jon Ison - 9/11/12 at 08:15 PM

You guys obviously to young to remember. Guess it shows my age, that was the only way to get ultimate power from your mini at one time that it appears is longer ago than I thought.

mookaloid - 9/11/12 at 08:17 PM

quote:
Originally posted by Jon Ison
You guys obviously to young to remember. Guess it shows my age, that was the only way to get ultimate power from your mini at one time that it appears is longer ago than I thought.

I thought mini when I saw that too - definitely an age thing

CRAIGR - 9/11/12 at 08:20 PM

Split 45's Aaahh the noise inside the mini was ........loud!!!

steve m - 9/11/12 at 08:31 PM

all the minis ive owned or driven had four cylinders

unijacko67 - 9/11/12 at 08:38 PM

Brave, also minted back in the day as Twin 40/45 where the thing to have. Night rally regs stated only two chokes, single cam and 4 cylinders. So splitting them meant you could line them up perfectly to two ports each, although I used a single 45 on a swan neck manifold as only the real money chaps bought two and butchered them.
Happy days back in the 80s.

Canada EH! - 9/11/12 at 09:12 PM

One of the reasons I am partially deaf, two Weber throats behind an ali plate over the speedo hole and a 970S turning 7000 rpm and wearing an open face helmet and no ear protection. Oh! the good old days.

britishtrident - 9/11/12 at 09:38 PM

Eventually Weber brought out a single choke version of the DCOE especially for use as pair on the A series.

britishtrident - 9/11/12 at 09:46 PM

quote:
Originally posted by Canada EH!
One of the reasons I am partially deaf, two Weber throats behind an ali plate over the speedo hole and a 970S turning 7000 rpm and wearing an open face helmet and no ear protection. Oh! the good old days.

In the UK Mini racers were left choking on the dust left by 998 Imps before they disappeared off into the distance.

ReMan - 9/11/12 at 09:48 PM

:-0
http://www.youtube.com/watch?v=977ZRV-X7z8

snapper - 10/11/12 at 09:26 AM

quote:

all the minis ive owned or driven had four cylinders

And siamesed inlet ports, that's only 2 for the 4 cylinders

russbost - 10/11/12 at 10:17 AM

Yup, I remember these, had them on our AutoX Mini about 37 years ago!!! 850cc Mini screaming up to around 8,000rpm & as said only thing between you & the trumpets was a bit of thin ali, perhaps thats why I am also slightly deaf!

MikeRJ - 10/11/12 at 03:14 PM

My brother a 45 DCOE (just a single one) on his 1380 mini with a simple alloy box fitted into the bulkhead. He also had straight cut box and straight cut drop gears. We drove it from Plymouth to Silverstone for the Mini 25th Anniversary celebrations, and both of us had ringing ears for days after. Young and foolish...

skydivepaul - 10/11/12 at 04:02 PM

quote:
Originally posted by 02GF74
you have to be pretty brave when getting the hack saw ..... (pic is linky)
Works Mini Cooper S MK1 Mk2 Split Weber 45 DCOE Special Tuning Works Longman | eBay

you also had to cut out the bulkhead in the mini to fit them in

Fatgadget - 10/11/12 at 07:36 PM

quote:
Originally posted by britishtrident
Eventually Weber brought out a single choke version of the DCOE especially for use as pair on the A series.

Never heard of this one ..What was its desgnation?..And did Brirish Leyland Special Tuning ever use it? I remember they experimented with Lucas mechanical injection albeit on a 8 port head though.
Incidentaly,why wasnt a single 45DCOE just as effective?

[Edited on 10/11/12 by Fatgadget]

02GF74 - 10/11/12 at 09:38 PM

taking the topic away from Minis, I seem to recall something similar being done for the B series engines (for MGB) but without chopping the carbs - again one choke from each carb feeding the siamesed inlet ports .... or did I dream that up?

picture anyone?

skydivepaul - 11/11/12 at 12:48 AM

quote:
Originally posted by Fatgadget

Incidentaly,why wasnt a single 45DCOE just as effective?

[Edited on 10/11/12 by Fatgadget]

with a 45 dcoe the two chokes are too close togethor. a split 40 dcoe gives you the exact distance to make a straight fuel inlet for both ports

makes a few bhp difference and can seperate the winners from the losers

rusty nuts - 11/11/12 at 08:23 AM

quote:
Originally posted by Fatgadget

Incidentaly,why wasnt a single 45DCOE just as effective?

Had something to do with charge robbing which made the outer cylinders run rich and the inners weak

DIY Si - 11/11/12 at 11:34 AM
It's not just you old boys that know about split dcoes! Anyone who's read Vizard's A series book should know about them too. Just as with using a 48 IDA for full silliness, like this:

Description

iank - 11/11/12 at 11:57 AM
quote:
Originally posted by DIY Si
It's not just you old boys that know about split dcoes! Anyone who's read Vizard's A series book should know about them too. Just as with using a 48 IDA for full silliness, like this:

Description

To be fair Vizards book only has 1 small section I could find regarding split webers (I checked this morning) and reckons they weren't really any advantage in the end.
It's only for getting a straight shot down at the ports apparently.

[Edited on 11/11/12 by iank]

DIY Si - 11/11/12 at 01:21 PM
Ah, I remembered it being more than that, but my copy's buried in the garage somewhere.

Peteff - 11/11/12 at 05:07 PM
quote:
Originally posted by steve m
all the minis ive owned or driven had four cylinders

But they only had two inlet ports

kipper - 12/11/12 at 10:16 AM
I remember in the dim and distant passed fitting twin Amal monobloc bike carbs to my mini with one float chamber cut off and being fed from the float chamber of the other carb.
Wish I had a camera in those days
Denis.