Yet other 20vt conversion questions, 3B engine mods

Bernie Benz b.m.benz at
Tue Jun 18 17:09:52 EDT 2002


What is an Abt?  The cam shaft doner engine?  Does it fit somewhere in the
group of 3B, AAN, ABY, and ADU, S5-20VT engines?


> From: Mihnea Cotet <mik at>
> Date: Tue, 18 Jun 2002 23:10:53 +0200
> To: quattro at, 200q20v at
> Subject: Yet other 20vt conversion questions, 3B engine mods
> Fellow listers,
> I'll be having pretty soon for my 3B engine a pair of brand-new Abt sport
> camshafts - intake and exhaust - (if anyone's interested in these, I can
> have them for pretty cheap) but I'd like to know wether I'll need to have
> my ECU modified (it's already modified for 282 HP actually) for these cams
> or not...Some people tend to say that the ECU has to be reworked in order
> to take all advantage of the cams, but is there any danger in running these
> cams with my modded chips? I'm also planning to port the turbine housings a
> little to be able to run some more boost (am I right?), anyone has already
> done that on a K24 and if yes, what are the results?
> Thanks for your help and answers in advance,
> Mihnea
> '85 Coupe quattro, due for a 20vt conversion for this summer, as well as
> new shocks, Eibach springs and lots of other mods including Porsche brakes
> in the front
> '90 200q20v 20vt donor, at the moment with a broken distributor gear :(((
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