Upping the boost in a 5ktq...

[TM]

Steve-
IMHO, running higher boost than the 12psi or so that you're running now
on
stock fueling and engine management is not going to work well. The CIS
system
can't provide enough fuel nor does the ECU have proper management maps
for
what you're proposing.

Also, if you do the resistor/zener mod, you'll defeat all overboost
protection,
so if the car does run lean due to a fuel problem, you'll blow the
engine.

Running the largest hot side will kill your spool up times- you want a
smaller
hot side, like the RS2 turbo, otherwise you're increasing lag.

You should ditch CIS and go to standalone engine management and EFI if
you want
big power. Talk to Javad- he's running something like 300+ hp in his
80tq with
EFI.

For the best throttle response, you should go to a tuned-pulse
equal-length header
and the most free-flowing exhaust you can bear.

Taka