2 replies to this topic

[m1tch]

Hi guys, hopefully this is in the right place im going to be dropping in a 1275 engine, 1100 sprint box, twin weber Dcoe 40 (running 45 internals) running a stage 3 head, 1.5 rockers and big valves into my mini at some point. Basically I need to know what jetting I need for the main jets, the emuslion tubes, air correctors and the idler jets as my mate has give me his that is set for a race engine (did do 90mph in 2nd).

I basically need to know what jetting I will need to get the car to run ok, the car will have both methonol and nitrous injection, but not 100% of the time.

Can anyone help? *smiles nicely*

[sprintmini]

Twin weber carbs on a standard might be overkill.
A single weber 45 or even split webers on a proper manifold may work better.
As for jetting I would start off with enough jet just to get the engine running and take it to a rolling road that knows minis and get it set up there.

[m1tch]

Its currently running stupidly big main jets lol what jetting does everyone else have? also what is the different in performance wise regarding the 4" or 6" inlet manifolds? I know the swan-neck manifold isn't very good for gas flow.