Quote:
Originally Posted by rackley
BTW, if we're using the HP/L logic, the 328i engine made 193 hp / 2.8L = 69 hp/L. The N55 makes 100 hp/L. This dramatic difference in hp/L MUST mean the N55 is less reliable. Likewise, all newer engines MUST be less reliable than older engines that made less HP/L. See? The logic doesn't hold up.
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Exactly, YOUR logic doesn't hold up, my friend.
Just never ever compare a NA engine to a turbo engine.
The 3 litre turbo 6 puts out less HP/litre than its 2litre turbo 4 brother, that's what we already know and thats what we are talking about. The more hp/litre of the N20 is excellent, but its downside is that it's more stressed out than the relaxed N55. I gave some examples(458/z06Vette, both NA).
So anybody who says the N20 is easily tuneable to 295/300BHP; Fair enough, but keep in mind a N55 is ALSO tuneable to 100BHP MORE easily. So I don't understand that argument. The only argument is $$$$ and that's why I drive a 335i and not a 991 or 458
Anyway.
Cheers
Robin
Come to think of it, my dad bought a E46 328i coupe 5MT back in 1999. He still has it. ITs'the engine you were talking about , 2.8 NA I6 with 192 DIN HP. 310,000kms. And still running fine, which means YES, with 69HP/litre whatever it IS MORE RELIABLE than 'my N55' and 'your N20'. Which means the N55 is logically more reliable than the N20....