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1100
https://www.ausmini.com/forums/viewtopic.php?f=5&t=29319		 Page 1 of 1
Author:  goonslayer [ Sat Mar 17, 2007 5:06 pm ]
Post subject:  1100
hey all... i recently just put a RE13 cam in my 1100 and also bored it out 60thou aswell as many other small things. The motor is running much better and i can really notice a difference. At the moment im currently running a single 1 1/2 su, and I also have a set of twin 1 1/4 su's, would it be worth giving the twins a clean up and put them on?

Cheers
Author:  drmini in aust [ Sat Mar 17, 2007 5:40 pm ]
Post subject: 
Personally, I think so, but I happen to like twin SUs. Properly set up...8)
Many folks here might disagree but I'd say unless you go up to an HS6 or HIF44 carb, twin HS2s will beat a single SU. :wink:
Author:  Anto [ Sat Mar 17, 2007 6:23 pm ]
Post subject: 
I'm running a 1098+60 with a stage two cam, with an HS4 on a Mini Spares manifold. I'd consider it slightly undercarbed. I reckon twin HS2s would be better, I have some but don't run them coz I think they're a pain. If you've got them and can set them up, use them. Other option is a 1.75" SU.
Author:  sgc [ Sat Mar 17, 2007 10:24 pm ]
Post subject: 
My last Mini (1098) had a single HS4 on the old cast manifold with 3-2-1 extractors and a warmish cam, and it got breathless revving beyond about 4000. After I put twin HS2's on a MG Midget manifold, the top end opened right up.. made a huge difference.

I'd definitely recommend the twins over a single HS4.. especially if you have a cam which can make use of the extra airflow. But then, I'm like the Doc and I just prefer two carbs :)
Author:  Spaceboy [ Sun Mar 18, 2007 5:03 am ]
Post subject: 
in my opinion twins will always be better because,

there is one carb per 2 cylinders, they flow easier and each cylinder gets a more even and direct flow of fuel and air.

:wink:

oh and twins are like breasts... or balls.., one will do in a pinch, but you really need 2.. :D
Author:  willy [ Sun Mar 18, 2007 9:29 am ]
Post subject: 
Real Minis run webers :wink: :lol:
Author:  sgc [ Sun Mar 18, 2007 10:19 am ]
Post subject: 
Spaceboy wrote:
each cylinder gets a more even and direct flow of fuel and air.


That's a really good point. With a single carb feeding all four cylinders, the #1 and #4 pots will run leaner than #2 and #3, making it hard to get the best power out of the engine -- the mixture is always a compromise. Twins deliver a much more consistent charge to all four cylinders, and (assuming you can balance them properly :wink: ) will give you better performance for that reason alone.

But Spaceboy's right for another reason...

Single HS2: A cup
Single HS4: B cup
Twin HS2s: C cup
Twin HS4s: D cup

:lol: :lol: :lol: :lol: :lol: :lol:
Author:  gafmo [ Sun Mar 18, 2007 12:18 pm ]
Post subject: 
I also run a 1152 with a Re13 but use a HIF44..and I can't complain
But a set of Twins always look great and perform very well.
Otherwise I'd go a Dellorto 8)
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