Another question

TM t44tq at mindspring.com
Sun May 13 11:31:29 EDT 2001


MK, please post in plain text rather than HTML. Thanks.

As for your question, I think it is a known fact here that you
will need to significantly upgrade the intercooler, turbocharger
and the fuel system in order to get to 300hp on the 10v engine.

The only one I know who has done this has a hybrid K26 hot/K27 cold
turbo and IIRC, Merc 6.9 CIS injectors and custom IA programming.

I would not bore the engine out for strength reasons and I would maintain
a close to stock CR as well, if you want to go high boost.

You don't really need to do much w/ the cam either- just make sure the
engine is properly rebuilt w/ new rings, valve seals, etc. and strengthen
the cooling and fuel systems before turning up the boost.

Anyone know what the max boost is for a stock K26 w/o exceeding the
efficiency limits?

If I ever do it, my 3B engine will get a larger turbo, better radiator,
intercooler and oil cooler and larger exhaust if I am to get big power
out of the car.

Taka


-----Original Message-----
From: quattro-admin at audifans.com [mailto:quattro-admin at audifans.com]On
Behalf Of MK
Sent: Saturday, May 12, 2001 11:14 AM
To: quattro at audifans.com
Subject: Another question


  If you recall I wanted to take the turbo charged engine out of my rear
ended 1985 5000 S Turbo and place it in the 1986 4000 CS Quattro. I am aware
of the site with the change over to turbo but my question is this.
  I want to take it as close to 300 horse as possible, planning on a
complete rebuild I had noticed some comments on the size of the bore
affecting the RPM or on how high the RPMs will go.
  I guess is can the wrong piston, bore and cam affect the rpms? This is a
do it my self because I cant afford a mechanic type thing and I want to do
it right any input would be appreciated.




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