Twin Carbs

Post by **fweddy** » Tue Feb 24, 2004 8:56 am

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

Post by **edd** » Tue Feb 24, 2004 11:11 am

Theres some answeres under this posting
http://www.morrisminoroc.co.uk/index.ph ... pic&t=3059

Edd

Post by **MrA.Series** » Tue Feb 24, 2004 11:37 am

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.

Post by **brixtonmorris** » Tue Feb 24, 2004 1:20 pm

i wouldnt bother with them

Post by **Innovator** » Tue Feb 24, 2004 1:26 pm

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

Post by **Kevin** » Tue Feb 24, 2004 1:35 pm

Twin 1.5" are really for the `B` series engine.

Post by **Peetee** » Tue Feb 24, 2004 4:22 pm

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