Matt B. wrote:
> "Mike Smith" > wrote in message
> ...
>
>>Matt B. wrote:
>>
>>>And the current 2.5L in the Jetta is also a 2.5 unit. Definitely a
>>>different head than the Eurovan engine. Not sure about the block though.
>>
>>From what I've read, VW claims the current 2.5L I5 is an all-new design.
>>In fact, they say it's (loosely) based on half a Lamborghini V10, but I
>>don't buy that. Maybe the bore and stroke, but that's about it.
>
>
> Well again the head is one thing and the block is another. VW claims the
> head is more or less half the Lambo's V10 but not the entire engine, hence
> my comment above regarding the head vs. block..
>
> From http://www.vw.com/jetta/features_perf.html:
>
> "...we borrowed the cylinder head design from the Lamborghini Gallaro V10"

But one would think that head design would have more to do with an
engine's power and efficiency than the block does, no? So why does the
2.5L I5 make only 150 hp?

--
Mike Smith