re. Turbo convertors type 85

[JShadzi at aol.com]

Ben,

There is no reason to think that a properly set up "Calloway" conversion will
not hold up.  The bottom end of a 4kq does not differ too greatly from the
RS2 bottom end believe it or not.  The 4kq motor in general is VERY
understressed, it has potential to run all day at easily twice the output.
The stock CIS, CIS-E and CIS-3 fuel systems can all safely fuel to 8-10psi
with good fuel ratios, easily.  You don't need the MC management swap to run
that level of boost with a K24 or 26.  Also, timing should be set to 6 btdc.
I've driven such conversions over 40k miles commuting, no reason to think
that it won't hold up.

Mike mentioned blowing head gasket running 18psi, this IMO is out of the
stock fuel systems capabilities, and I don't know first hand how he was
making up for the extra fueling, but with the proper supplemental fueling
devices that shouldn't be a problem either.

Javad

<< I would tend to agree, except for one thing.   For a properly set-up turbo
 application, there is a lot of modification required to the car AFAIK.  I
 suspect a "Calloway style" will not stand the test of time.  Probably good
 on a drag strip for some runs, but I question longevity for a daily driver.

 I'd be interested to know how the "bolt-on" turbo works in the long-run.

 Ben >>