Hello bbb88 - another new member! :wave: Whereabouts are you?
i have uno turbo 1,3 88 MK1 i was going to get one pipercam camshaft, but i dont have enought money for now. one friend of mine told me that i can put one from uno 70 but i dont know from wich one please help!
If you want my personal opinion - don't.
Fact: original camshafts for turbocharged engines have very different valve timing to the camshafts for naturally-aspirated engines - the timing figures are in the Uno handbook. I believe they are different for a reason; less valve overlap to reduce potentially-damaging compressor surge.
I'm not the expert on cam profiles, but it stands to reason that what is necessary for a naturally-aspirated engine ISN'T necessary for a turbocharged engine, since the mixture is forced-in under boost. There isn't the same breathing requirement at all, except when the engine is running off-boost - and then, that's at low revs and low load, when smoothness and economy are more important anyway.
Personally I won't be changing what FIAT developed, since they obviously went to some expense for it.
In a naturally-aspirated engine, the cam change is useful only in conjunction with other improvements (higher compression, bigger carbs), and even then you generally don't get something for nothing; more power at the top end equals less power at the bottom end. The turbocharger overcomes quite a lot of this problem, so in my opinion, it makes cam changes less important.
Dunc of course has set out to create the ultimate race engine - all power to him

His engine has many other changes and so, if someone says the cam needs changing, I accept that. But I still don't think a cam change is necessary for a 'standard' Uno Turbo engine.
-Alex