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Weber Carburettors


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#1 lee1293

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Posted 17 September 2008 - 09:01 PM

Havn't seen much info on this forum about webers. anyone know much about them..

How much power they add
How hard are they to fit
do they need any aditional parts. ie electric fuel pump.

was looking at this one on mini sport, gonna add it to my 1275 after cam and head upgrade.

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Please post any pictures if you have any. Thanks Lee.

Edited by lee1293, 17 September 2008 - 09:01 PM.


#2 mike.

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Posted 17 September 2008 - 09:30 PM

I've had no experiance with them you'll find that most people will say just stick with a HIF44.

Much cheaper, much easier to set up, no need for a bulkhead box and plenty big enough to fuel highly tuned large bore engines.

I'm sure people will elaborate on this...

Edited by minimadmike, 17 September 2008 - 09:30 PM.


#3 newbambeeno

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Posted 17 September 2008 - 09:32 PM

I have one for sale at the moment with the manifold and the filter here You will need to buy the jets and linkages for it I beleive and the electrical fuel pump is required. If your'e interested, PM me!

#4 Turbo Phil

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Posted 17 September 2008 - 10:26 PM

Adding a Weber to your car won't add any power if the carb currently fitted isn't a restriction.

#5 lee1293

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Posted 18 September 2008 - 12:07 AM

thanks for all your replys..

i have the HIF44 fitted and my engine runs pretty sweet. Just thought a weber would have been a good way to boost some power instead of a turbo or supercharger. but ive never really heard much about them or anything. Twin carbs would probly be better easyer to fit, cheaper, but then again would it make that much of a difference?

#6 mike.

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Posted 18 September 2008 - 12:18 AM

It wouldn't make much difference at all really. Apparently they're ever so slightly better for torque (acceleration) but youy wouldn't even notice.

With the sort of money your looking at paying for a sorted weber or twin SU set-up - i.e. up to £500 i'm sure theres something you could do that'd give you more power.

Whats your current engine spec?

#7 newbambeeno

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Posted 18 September 2008 - 05:29 PM

According to Mr Vizzard, Webers can deliver up to 10% power increase, mainly at the top end. He says that on engines built up to a spec delivering 70+HP then a Weber is suited for the job. The 40 is better for tuned 998-1275 whereas the 45 is suited for the 'fire-breathing 1380's'. The O/H has stolen the book off me at the moment, so I can't quote directly, but I have said what I can remember. Also, Webers cause mini's to sound rather sweet! You will need to get your mini rolling roaded no matter what upgrade you go for, to ensure all is well, and Webers are no different.

I have been told that once a Weber has been set up, then it tends to stay that way, just the initial set up can be a pain, but that is why rolling roads are so great!! Don't let the fact I am selling mine put you off what I am selling, I am merely quoting Vizzard. It would be worth you putting a new head, cam and stage 1 kit on before you even consider a Weber, but if you want something a bit different then I would say that it would be a great addition to your engine bay, if your willing to learn about them and get the car set up.

#8 Turbo Phil

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Posted 18 September 2008 - 05:56 PM

Yes exactly, "can" deliver a power increase. If the carb currently fitted isn't to small as to cause a restriction & is correctly callibrated for the application, then adding a Weber will be of no real benefit.
Gains may be made in a straight swop, not due to the carb itself, but due to the better manifold design generally used on Webers, as a lot of the SU manifolds are of poor design.
The SU on a decent manifold however is a great piece of kit, & often very underrated. I must admit though, the Webers do sound & look much better ! Lol.

#9 newbambeeno

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Posted 18 September 2008 - 06:00 PM

Yes exactly, "can" deliver a power increase. If the carb currently fitted isn't to small as to cause a restriction & is correctly callibrated for the application, then adding a Weber will be of no real benefit.


Good point, it is a case of don't fix what isn't broken.

#10 abskie

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Posted 18 September 2008 - 06:08 PM

my boyfriend has one on his 1293 and theres no real power gain from a weber than a HIF44 carb. just the noise sounds better!

#11 WiredbyWilson

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Posted 18 September 2008 - 06:59 PM

my boyfriend has one on his 1293 and theres no real power gain from a weber than a HIF44 carb. just the noise sounds better!


I run one on my std 1275 but it will bemoving across to my naughty 1330 when it is built.

No immediate powere gains - im currently about 70bhp, but you simply can't ignore the noise, some say to me they don't realise it is a mini till they see it ;D

if you want to be a bit different and can afford it, then why not (that was my rationale).

Wilson

#12 lee1293

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Posted 21 September 2008 - 10:25 AM

Thanks to everyone who left a reply. I thought a weber was a bit like a tiny supercharger, and would give me some power increase. but im not spending the time and money so i can just make it louder. at the moment im only running a metro 1275. i have made some small upgrades ie. straight through exhaust, cone filter, splitfire HI leads, etc nothing big. Soon to be adding a brand new head and cam. thought a weber was a cheaper option to the supercharger but from the sounds of it its a waste of money.

I am running the HIF44 ive had it on the rolling road, tuned and needle played about with. ( 62 bhp ).

Just wanted to make some upgrades soon. glad i got some more info on the weber, save my money for something else :dontgetit:

Thank you.

#13 wolfys_mini

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Posted 21 September 2008 - 10:27 AM

you seem too be comparing forced induction too a weber....why?

#14 lee1293

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Posted 21 September 2008 - 10:38 AM

you seem too be comparing forced induction too a weber....why?


Thats why i asked about it because i wasnt 100% sure.

#15 shorty

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Posted 21 September 2008 - 10:53 AM

firend of mine has offered to give me a weber free as he has just had a whole new engine put in his.

problem is another friend said that fitting one to a 998-1000cc engine would drown it and also would it rack the insurance up much?




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