FW: Bored engine in Rally car?

[JShadzi at aol.com]

Stephane, thanks for qualifying your inexperience.

The "Audi engineers knew best" argument never flies with me, if Audi Engineers had their say on the end result of the product without consideration to the financial, marketing, sales, distrubution and ego/upper management factor, you think Audis would look anything remotely to what they have all along?  No, absolutely not.

The bore/stroke/displacement considerations were as much marketing considerations as engineering ones.

Anyway, Audi made boring and stroking an I5 very easy, FROM the factory.  With bigger bore pistons and longer stroke cranks available basically off the shelf, it makes it a very simple development process.

Plus, it works, in my experience the bigger displacement motors give up little in revving capability and gain much more torque than they already have.

HTH,
Javad


>
> Totally inexperienced wild a$$ suppositional flame bait here...
>
> I like to modify vehicles, and there are lots of things that I am willing to
> do, sometimes because the engineering doesn't matter, and sometimes because
> I think I can do it better than the engineer who designed it.
>
> However, when it comes to the bore and stroke of engines, I am willing to
> accept that the engineers who came up with the specs for the I5 knew their
> stuff and found the BEST balance between performance and longevity.  So if
> you change the bore/stroke aspect, you will gain in 1 area and lose in the
> other.  Another good example (besides the I5) is the droF 302 V8.
> Absolutely bullet proof in stock configuration - especially the older
> versions.  I know - I've had a few in my younger wilder days and could not
> kill them, despite my youthful enthusiasm and lack of maintenance.
> Since joining the Audi fold, I am very impressed with the longevity of some
> listers' I5's, and as you mention, you don't hear of too many people messing
> with the basic block.
>
> Just MVHO
>
> Stephane
>
> > ----------
> > From:     Zsolt[SMTP:zsolt1 at telusplanet.net]
> > Sent:     April 7, 2003 11:38 PM
> > Cc:   quattro at audifans.com
> > Subject:  Bored engine in Rally car?
> >
> > I am curious about the bored engine. How come hardly anyone seems to be
> > trying to get more displacement out of Audis?
> >
> > Thanks,
> >    Zsolt
> >
> > Ray Rollins wrote:
> >
> > >[ Converted text/html to text/plain ]
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