Quick 20v turbo Question
jiipm at sci.fi
Sun Jun 17 02:18:18 EDT 2001
Jonas and Javad wrote:
>> OK, so I'm putting together the pieces for my 20v turbo
>> project into the CQ. >>
> Good, good...
I agree :)
>> I've sourced the exhaust manifold, and I have a question about the turbo.
>> Is it just a KKK turbo? Will any KKK turbo mate up to the EM, or are there
>> different hot-side bolt patterns? Will the KKK K03 from a 1.8t bolt up?
> Any K-24/26 will bolt up, the 24 will give better low end power and respone,
> the 26 will allow high RPM power, the 3B comes with a 24, a 24 will cost you
> about 5 times as much as a k26 off an MC
After testing those two turbos in MC engine, I can say You don´t want that K 26.
K 24 is capable for 250 Hp without any turbine side blade modifications and after
it much more. K 26 ( big one ) has bigger turbine side, but smaller compressor
side and it will have bad effiency after 3B´s 220, maybe before. Also You need that
later Euro 10v (and 20v) single pass IC, do not take that U.S. 10v dual pass.
>> The Intake manifold is expen$$$ive, but if the turbo fits under the 20v NA manifold,
>> then I don't mind using it. Will the new injectors fit in the stock IM...
> It should fit, you will have to figure out all the induction yourself instead of using
> the stock 3B parts. The 7A injectors will not fit in a 3B fuel rail, the top uses a much
> larger oring than the 3B.
Yeah the turbo will fit, but the wastegate doesn´t, it has to be moved. Also 7A injectors
should be replaced to 3B:s...So You need that IM IMO...
>> Also, if anyone has a set of NG or NF pistons sitting around, I'd be interested
>> in buying them. With or without rods. >>
> I would buy the whole bottom end, trying to refit used pistons is kinda a gamble.
That is right and makes me asking Jonas; why not a complete 3B swap, or a low
pressure turbo system, when You can have all Your ECU, injectors etc...
All You need is a new modified header and a turbo ( maybe Garret T3 with integral
WG ) and some exhaust plumping. Of course hp:s will be very limited...
former ´91 20v cq owner ( spent lots of hours in planning swap or mods )
now drivig a ´90 100tqw with 1.1 Bar ( 2.1 absolut ) and waiting for my
20v S-project next year
More information about the quattro