8 replies to this topic

[Bam]

I have got a set of 1 1/4" twin SU's and am not entirly sure how to fit them, can any body help?

Thanks.

[Wil_h]

Remove old carb and inlet manifold (not so easy if you have the original cast manifold, as exhaust and inlet are attached);

Put on new carb and manifold;

Connect up throttle, choke and fuel;

Get fuelling set-up.

Wil

[Bam]

The only part that I am not so sure on it connecting up the fule lines and the vacume pipe that comes off the distrobuter.

[miniboo]

Bam i am in the same boat as you.

Iam not sure which cable connects where?

Has anyone got any pics of there in the car?

Sorry to thread jack bam

[Don't Panic]

if you have had electronic ignition fitted you won't need the vacuum pipe, must a note because they connected it on mine after the ignition was fitted and when it was tuned by a different specialist they removed it.

[Dan]

I'm sorry but that's not remotely true. The electronic ignition simply replaces the points and condenser most of the time. The guts of the distributor including the vacuum advance are still required to map the spark timing in most types of electronic ignition systems.
If you have had an ECU system fitted which includes a throttle position sensor for load calculation that's a different matter but straight electronic ignition still needs the distributor to rotate the baseplate in order to move the sensor around the spindle and therefore advance or retard the ignition.

[The Matt]

Bam i am in the same boat as you.

Iam not sure which cable connects where?

Has anyone got any pics of there in the car?

Sorry to thread jack bam

Miniboo, if you email me a piccie of the carbs and your questions about what goes where, I will scribble some arrows on the pictures and tell you what I can mate. :wink:

[miniboo]

Cheers MMM.

Will do

[Don't Panic]

hijacking this thread, sorry, Dan should i reconnect the vaccum advance pipe then? it was cut off by a guy at northern mini's when on the rolling road, who took it from 61bhp to 68bhp @ wheels. What difference will having this disconnected make?