2.5l 5cyl via diesel crank and smaller bore

[Mihnea Cotet]

Javad, Todd, Pantelis,

500 HP, even on an RS2 engine, with real long term reliability is *not that
easy* to achieve. First off because the Motronic can't calculate a long
enough injector opening time of 16ms at 6k and 14ms at 7k. It need serious
tuning with not that much error margin and freaking big injectors too.
Plus, the cold side it would need would have to be something like a T04
60-1 trim combined with a turbonetics #8 K26 hot side (which is about as
big as a standard Sport quattro K27 #7 hot side) as well as ideally an MTM
S1 EM or a tubular one.

Everything is possible, but the main issue remains the budget, 440 safe and
reliable HP can be done for pretty little money compared to what it would
take in order to make 500 or 500+....

Just my 0.02 Euros,


Mihnea

At 12:15 17/09/2003 -0400, JShadzi at aol.com wrote:
>If you build that motor up right, no reason you can't have 5-600hp out of
>it if you wanted, heck, I'm getting close to 400 out of a distributor
>ignition'ed 10v, a direct fire RS2 motor with rods, the right turbo, and
>of course the proper management can make 500 crank easy.
>
>The difference between an "alleged 360" and 400hp is small to say the
>least, I completely agree with Todd, I'd make 500 your goal for this project.
>
>Javad
>
> >Right,
> >  But if he is gonna spend the time and money to say, Extrude
> >HOne and P&P the head and EM, put a Ceramic Ball bearing T3/T4
> >Turbo on there, and who knows what else, why not shoot for a
> >little more than 400.  I guess thats what I'm saying.  With a
> >similar setup, simply moving to the T3/T4 and then doing some
> >serious chip tuning Alex and Ned ended up with a 4ktq that was
> >WAY more powerful than it was before.  We did not Dyno the car,
> >but it was around 380hp before the mods and was maxed out.
> >After the changes I'm guessing the car jumped to at least 450hp
> >as it was MUCH MUCH faster.
> >  I hear everything your saying, I just feel that if one is
> >going to spend lots of dough on upgrades and custome rods they
> >may as well aim a little higher.
> >l8r
> >  Todd
> >
> >--- Mihnea Cotet <mik at info.fundp.ac.be> wrote:
> >> At 00:26 17/09/2003 -0700, Todd Phenneger wrote:
> >>
> >> >   Anyhow, my Point was why shoot for 400hp when he is so
> >> close.
> >> >Might as well go for more and see a noticable improvement.
> >>
> >> Because the difference between 380 HP at the
> >> reliability/efficiency limits
> >> of a turbo is sooooo big when you compare it to 400 HP with a
> >> turbo that is
> >> at 80%+ efficiency and no reliability issues. 380 safe and
> >> reliable HP in
> >> the long run is almost impossible for an RS2 turbo, except if
> >> there's a big
> >> IC, very good exhaust with no cats and possibly some head work
> >> done, BTDT
> >> on the dyno.
> >>
> >>
> >> HTH,
> >>
> >> Mihnea