2.5l 5cyl via diesel crank and smaller bore

[JShadzi at aol.com]

Well, granted, my experience tuning the Motronic system is limited, but Hap over in Colorado is running Motronic, and with reasonable mods he's pushing some 400 wheel hp on a very reasonable K26/TO4 54 trim turbo.

If the Motronic is ad tuneable as you say Mineha, then tuning for bigger injectors to supply enough fuel shouldn't be a problem either.  Of course, if the Motronic can't keep up with the power, then a better alternative should be considered ;)

Javad

>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
>
>