When you say it "can" be made to work, is it any trickier than wiring one into a supra or silvia?
No not really, depend on what type of commodore.
I seem to recall seeing a video of an engine assembly line, where one of the steps after it's been fully assembled was to rev it at high RPM for about a minute? I've also heard from numerous places that modern engines are pre-broken in by the time you get hold of the car, and that the break-in period is much less crucial than it used to be in the past.
It also seems to be a highly contentious topic about how running-in should actually be done. Manufacturers tend to say "take it easy", many mechanics claim that a good flogging helps the piston rings bed in against the liners better or some such.
That said I'd still follow whatever the manufacturer recommendations are simply because I assume they know best having designed the thing.
Mechanic tell ya to flog it because it means more work for them.
Maybe that inital 1 min of high revs beds every thing in but if the engine breaks during that minute what happens. They throw it in the bin and start again, if your engine blows up in a new car, what happens. It goes to manufacturer and they plug there computer into it. Check the top rpm, how many times the limiter has been hit, top speed ect. Then decide if they want to give you a new engine or if u will be paying for it. Seen it happen to a mate in a new falcon at then end of 08.
Seen blokes with dirt bikes say the same thing about flogging it, and others run it in properly, the ones that got flogged had a very short life compared to the ones that are properly run in.
Im no mechanic, but do work in the metal industry and can see the need to run large chuncks of alloy with lots of moving parts made out of various steels in.
If you cut the spark but not the fuel supply, won't you be dumping fuel down the exhaust and ruining your cats? Assuming your running cat.
If you have modified your car enough to need a spark cut limiter, im sure you would have steel or empty cats in your car.
All in all i think spark cut is better than fuel cut on highly modified cars or cars running FI with high boost.
Matt