Re: Flat 4 engine intakes

"John_H" <john4721@[EMAIL PROTECTED]
> wrote in message
news:ejdiv397kk76la64qp3dohtj301cv8h3rr@[EMAIL PROTECTED]
> Jason James wrote:
> >
> >Now we have the Suby, which the earlier motors were pretty tame, but
then
> >came the turbo models. Is it true to say, that these engines need more
boost
> >to get the 160 odd kws, compared to an inline engine?
>
> Without doing the sums I'd suggest that the specific torque figure for
> a WRX (Nm/litre/At) would be directly comparable with any other
> cylinder configuration.  Therefore its power output will also be
> comparable.
>
> In any case... what relevance does the length of the intake tract have
> in a forced induction engine?

In simple terms (the best I can do) for the same reasons putting a longer
hose between a water-tap and a sprinkler will reduce water volume vs time
(tap setting as a constant).


 > Nor is there any reason why they couldn't be set up to produce buckets
> of low down torque other than the fact they'd probably break something
> behind the engine....  Especially since a four cylinder engine puts
> exactly the same loadings on its transmission components as does an
> eight cylinder producing half the torque!
>
> -- 
> John H

http://www.mre-books.com/sa115/sa115_2.html

This site mentions the effect of long and short intake runners over a
short
distance, let alone the old Dub,

Jason