CIS Conversion questions

[daddygo]

The 73 I'm restoring is a Euro that was brought over sometime in the 1980's.

I came with Zenith carbs... but the engine is tired and I found a deal on a recently rebuilt 2.4L CIS engine.

So I'm converting from a carb fuel delivery to a CIS fuel delivery.

I'm trying to ascertain all that I need to do to switch over the fuel deliver to accommodate the CIS requirements.

The existing fuel tank has two fuel lines that run to the back of the car where a fuel pump sits underneath the driver side back seat.

I realize I need an accumulator with filter, but do I need to source a different fuel pump and fuel tank?

[docrodg]

You need a higher pressure pump for CIS as I recall. Fuel tank should be fine, as long as the pump can get enough volume out of the line connection.

[RWebb]

CIS fuel tanks had the swirl pot (search on those terms for pics, etc.)
- is it needed? dunno, but it has to be there for a reason (cornering?)

this is an expensive proposition -- and it leads to... unsportscar like conduct
however, you would get better mileage and lower emissions

if it wuz me, I'd fix up the Zeniths - they are really a pretty nice carb

or for the cost to retrofit CIS, you could just buy new PMOs and have the ultimate carb ever made

you can swap parts on the 2 motors - like the cams & pistons... have a nice sports car motor when you're done

[unclebilly]

IF you want CIS performance, go buy an 85 Plymouth Reliant...

Seriously, this is not a step ahead performance wise. If you want to go with injection, look at a Motec setup or a custom built EFI system with Ford parts. This has been done on the cheap in the past with very good results.

[daddygo]

Thanks for the input guys, and to clarify, its not a CIS or no CIS decision. I purchased a CIS engine, now I have to adapt the fuel delivery to support it.

Its a budget issue, not an "ideal" set up decision. If I wanted to afford it, I'd just have the original engine rebuilt with some PMO's... but whoa! The cost is too high.

[docrodg]

To add another few cents to my previous statement...

A used engine could give you problems as well, you never know what is going to happen or did happen. IMHO keep the old engine and tear it down, figure out exactly what needs to be done to it, and save up for the rebuild. Best of both worlds as you will have the used engine to keep you on the road and a better, stronger engine when you finish.