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Results
Both Jeeps resulted
in insignificant gains in HP and torque from the
Unichip. The
Airaid did provide results
through all tests. Neither product
provided results according to the manufacturers
claims. The Unichip claims 27 HP and 26
Torque were based upon corrected engine HP so
that result would be inflated but assuming
typical driveline loss of 25% the rear wheel
gains should be approx 20 for both HP and
Torque. The
Airaid claimed 14 HP and 24
Torque at the rear wheels.
It is well known
that manufacturers will "play" with a test until
a result can be achieved but we expected more
from both products. The opportunity to
test 2 identical Jeeps was very effective in
this test. Both Jeeps were within 6 HP
during the base tests. That could be due
to different gasoline, mileage, etc.
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Note on Fuel Mileage
Prior to
installation of the components the jeepfan.com
JK computer fuel mileage readout read a
consistent 16.7 mpg, since the addition of the
Unichip and
Airaid mileage now reads 18.3.
A 1.6 mpg improvement can equal approx $200/year
fuel savings at 12000 miles/year.
Conclusions,
theories, observations, wonderings
Both OK and us agree
that the Jeeps "feel" different with the chips
and
Airaid. A possible flaw in our test is
the RPM range we used of 2500-5500 RPM.
Both Jeeps seem to have more low end power,
something you would use while climbing a long
hill or passing on the highway. It would
have been beneficial to test the Jeeps at a
lower RPM but one would still expect better
results throughout the RPM range. |
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During our tests
both Jeeps complained through indicator lights
about the ABS and Traction Control systems.
The new JK is completely computerized and the
computer may have interpreted the dyno as a
system issue. The ABS sees the rear wheels
running at 70 MPH and the front is sitting
still. The Traction Control sees the front
stopped and the rear wheels slipping. It
may be a possibility that the computer ran the
engine at a reduced mode during the
interpretation of a system issue???
This test is hard
for us to call...The
Airaid seems like a
worthwhile investment but the Unichip module
doesn't seem to stand up considering the dyno
reports no significant improvement on either
Jeeps. Still there is something there
worth mentioning. wtf?
We are contacting both companies to
see if they can provide some insight on our
findings. We will report any news here.
Thanks to
OK Auto and
especially to
G&S Autoworks
for tolerating us and not laughing too much at
our 160 ish HP Jeeps.
For pricing and options see these
products at
Unichip Jeep JK Wrangler Performance
Module
Airaid Jeep JK
Wrangler Cold Air Intake
See the
full installations of the above
Unichip Jeep JK Wrangler
Performance Computer Module Install
Airaid Cool Air Dam Intake System
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