Options
Description
These
are
the
same
EPROMs
we
include
with
our
full
ECU
upgrades.
If
your
ECU
has
already
been
upgraded
or
modified
in
the
past
and
is
already
socketed,
these
can
easily
be
installed
by
just
swapping
out
the
chip.
Features
&
changes
to
the
program,
compared
to
stock,
include:
-
Street
legal,
does
not
affect
emissions
testing
-
Plug-and-play,
no
further
adjustments
needed
to
run
-
Rev
limiter
raised
to
7,200
RPM
-
Vehicle
Speed
Limit
disabled
(unless
you
think
you
can
hit
300mph!)
-
VTC
release
point
adjusted
-
Fuel
&
Timing
Load
Scales
adjusted
for
higher
boost*
-
Fuel,
timing,
and
countless
other
maps
meticulously
fine-tuned
for
smoother
output
-
Fuel
maps
adjusted
to
provide
safe
AFRs
for
most
Zs
with
typical
mods
-
Timing
maps
adjusted
to
provide
more
power,
within
a
safe
limit,
for
most
Zs
with
typical
mods
-
Factory
safety
boost
still
functional
(where
applicable)
*
The
ECU
does
not
control
boost
directly
(outside
of
enabling/disabling
safety
boost),
but
an
upgraded
ECU
is
a
prerequisite
for
raising
boost.
We
recommend
no
more
than
~12.5psi
on
stock
injectors.
With
upgraded
injectors,
our
recommended
limits
are
~14psi
on
91
octane,
or
~16psi
on
93
octane.
Consider
these
upper
limits--
always
monitor
AFRs
with
a
wideband
and
listen
for
knock!
Please
note:
If
your
ECU
is
stock,
you
will
need
to
have
it
professionally
socketed
before
you
can
install
one
of
our
EPROMs.
We
offer
an
option
above
to
include
the
physical
socket,
but
you
will
still
need
to
have
the
stock
EPROM
chip
desoldered
and
removed
before
the
socket
can
be
installed.
Our
Full
ECU
Upgrades
takes
care
of
this
step
for
you,
allowing
you
to
send
in
your
ECU
for
us
to
socket
+
chip.
ONLY
FITS
8-BIT
ECUs!
This
will
only
fit
the
original
ECUs
as
stated
in
the
title
of
this
product
page
(90-92
NA,
93
Convertible,
or
90-94
TT).
8-bit
ECUs
themselves
can
be
used
throughout
90-95,
but
it
is
up
to
you
to
determine
if
your
ECU
is
compatible
with
this
chip
upgrade.
If
you're
not
sure
how
to
tell,
please
contact
us
with
photos
of
your
ECU
and
the
label
on
the
cover
of
it.
Compatibility
If you have questions about vehicle fitment, please contact us.
| Year | Make | Model | Body | Engine |
|---|
| 1989 | Nissan | 300ZX | 4-Seater (2+2) | VG30DETT (Twin Turbo) |
| 1990 | Nissan | 300ZX | 2-Seater | VG30DE (Non-Turbo) |
| 1990 | Nissan | 300ZX | 2-Seater | VG30DETT (Twin Turbo) |
| 1991 | Nissan | 300ZX | 2-Seater | VG30DE (Non-Turbo) |
| 1991 | Nissan | 300ZX | 2-Seater | VG30DETT (Twin Turbo) |
| 1991 | Nissan | 300ZX | 4-Seater (2+2) | VG30DE (Non-Turbo) |
| 1992 | Nissan | 300ZX | 2-Seater | VG30DE (Non-Turbo) |
| 1992 | Nissan | 300ZX | 2-Seater | VG30DETT (Twin Turbo) |
| 1992 | Nissan | 300ZX | 4-Seater (2+2) | VG30DE (Non-Turbo) |
| 1993 | Nissan | 300ZX | 2-Seater | VG30DE (Non-Turbo) |
| 1993 | Nissan | 300ZX | 2-Seater | VG30DETT (Twin Turbo) |
| 1993 | Nissan | 300ZX | 4-Seater (2+2) | VG30DE (Non-Turbo) |
| 1993 | Nissan | 300ZX | Convertible | VG30DE (Non-Turbo) |
| 1994 | Nissan | 300ZX | 2-Seater | VG30DETT (Twin Turbo) |
Customer Questions
Question:
I’m no car expert. Would this make my 1991 Z faster and or more responsive? Are they difficult to install? Is there anything else you sell that is somewhat of an easy upgrade for performance?
- Michael
Answer:
Hi Michael, these mostly benefit the TT as they allow you to run higher flow-rate injectors and different intake configurations. They do optimize things a bit for the NA, but there just isn't as much to change on the NA. If the ECU is stock, these require pretty high soldering skills to install. Otherwise, check out our full ECU upgrades as those are the same thing, just with having us install them for you.
Question:
If my car is a 1994 NA but has a 1992 ECU what year should I put down?
- Max Kilbourne
Answer:
Hey Max, you'll want to go off the ECU's year, so select 1992.
Question:
My car is an auto to manual conversion and still runs the auto ECU. Should I select auto or manual in the options list?
- Justin
Answer:
Hey Justin, select for Manual
Reviews
Rated 5/5
based on 5 customer reviews
Got a chip for my 91 NA Z. Right off the bat I could tell a difference in how it ran. Throttle is more responsive, low end pick up is much better, power band through entire RPM range is much smoother. I thought my Z ran good before the chip, but that was just the cherry on top. GG, would recommend!
Very impressive how such a little tweak can make such big changes. The car ran smooth already before the chip, but especially the throttle response got so much better. Runs like new.
First off, it is an absolute pleasure to work with CZP for so many reasons.
Anyways, my Z was not passing CA smog, and this tune (along with some new plugs), and the car passed with FLYING colors. Not to mention the amazing throttle response, and overall improvement of the car running. Butt dyno felt a difference too! Absolutely best money I have spent in awhile!
