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Twin Carbs

Posted: Tue Feb 24, 2004 8:56 am
by fweddy
Is it worth what ever hassles there are to fit a pair of 1.5 inch SU carbs that suit larger mini or other BMC A series motor.

Tell me about the process and options - just that there are some forsale at present

Image

Posted: Tue Feb 24, 2004 11:11 am
by edd
Theres some answeres under this posting
http://www.morrisminoroc.co.uk/index.ph ... pic&t=3059

Edd

Posted: Tue Feb 24, 2004 11:37 am
by MrA.Series
A singular 1.5 would be a good upgrade in itself. Twin 1.5 would mean hassle with set up and probably choke the engine too much.

Posted: Tue Feb 24, 2004 1:20 pm
by brixtonmorris
i wouldnt bother with them

Posted: Tue Feb 24, 2004 1:26 pm
by Innovator
A single HIF SU would be a better bet.

As Vizard says in his book the twin carb inlet is not very effecient.

Set up is easy with either if you use a rolling road with an operator that knows what he is doing. If you are not prepared to have the carb/s set up correctly stick with a standard engine.

John

Posted: Tue Feb 24, 2004 1:35 pm
by Kevin
Twin 1.5" are really for the `B` series engine.

Posted: Tue Feb 24, 2004 4:22 pm
by Peetee
Twin 1.5's on a standard Minor engine are too much. They are really too big for a 1275cc motor too, unless it is in a high state of tune. A single 1.5 on a 1098 would be the best choice. Mated to a suitable inlet and exhaust and mildly worked head you could get 55 to 60bhp and more importantly, bags of torque - something that would definitely suffer with twin 1.5's