Alfa V6 dilemma

[SUSIT]

I may have the option to fit a 24 valve instead of a 12 valve during my rebuild. Remembering the car is for motorsport use and rallying in particular which engine would you all recommend and why?


Stephen Struthers

[Sando]

O how I look forward to having to think about this dilema one day!

For me it would depend on the available 24v engine, does it need a rebuild?
If it didn't, I'd go for the extra standard power, if it did, I'd be looking for a 24v with less miles on!

Not much use I know, cos I've not got any experience, but 12 or 24v I'd go for the one that you could drop in as it is, if you can, one that you know runs well and doesn't need a rebuild would be my choice for reliability. May cost more up front but rebuilds could cost as much (or more) again as the engine?

Robbie four pots
- 10 years behind, but feet on the floor!:)

[chris.richard]

One thing to think of is the logbook. The 24v goes under category K37.1.2 (b) because of the multivalve over 2.5l limit. This means a higher minimum weight requiring considerable ballast. (It doesn't include the crew in the weight, unfortunately!) There is a big set of forms to be filled in, which needs photos of bits of the car; the logbooking needs to be done by a Technical Commisioner, not your local Scrute. The paperwork isn't a reason not to use the engine, but the weight penalty might be.

[Sando]

Key Point Chris..............

[roger001]

when I had to make up my mind I felt that a 24v would be best if left in standard tune (ECU etc) however if modification was allowed then a 12v was half the cost on virtualy everything 2 cams instead of four, coil per plug ignition, plus smple things like cam timing did not require four sets of hands and special tools, (unless you are Chris).
Added to which at the time of making the decision 24v engines were still £1000 plus.

[David May]

If you are lucky enough to find a really low-mileage 3L 24V then you don't need to spend a penny and you at the level of a well-modified 12V, with 7200rpm, no noisy tappets and good economy into the bargain. If you buy a banger then yes, its going to cost you, but most of bits that wear out (bottom end) are identical.

Dave May