Banks Power Jeep Trucks: (Gas ’91 - 06 Wrangler 4.0L) Sidewinder Jeep Turbo Jeep 4.0L I-6 models '05-06 - Manual (Page 4)

4
96312 v.2.0
The Banks Sidewinder ® Turbo System
MUST be installed on an engine that
is known to be in good operating
condition in order to maintain engine
life. Before installing your Sidewinder
®
System, you must perform a cylin-
der leakage test, compression test,
spark plug inspection, and key on fuel
pressure test. If you are not familiar
and experienced with these tests, we
recommend that you have the vehicle
inspected by a qualified technician
to ensure that your engine is in good
health and will support the Banks
Sidewinder
® Turbo System.
Whether you complete these tests
yourself or have a qualified technician
complete them, fill out the following
tables for future reference.
Reference Figure 1
1. Remove passenger side radiator
support rod by removing two bolts.
13mm socket
2. Disconnect intake air tempera-
ture (IAT) sensor connector from stock
intake tube. Remove and retain sensor
for use on new intake tube.
3.
Remove stock intake tube by
loosening one clamp at throttle body
and one clamp at air box. Cover throt-
tle body inlet with a cap or clean rag.
8mm socket
4 . Remove front positive crankcase
ventilation (PCV) hose from air box lid
and top of engine.
5.
Remove air box lid and air filter
element. Remove air box housing by
removing three bolts from inside air
box housing.
8mm socket
6
. Remove ignition coil pack to
access spark plugs by removing four
bolts.
13mm socket
!
NOTE: Do not disconnect
connector at rear of ignition
coil pack. Set ignition coil pack
where it will not interfere with
removing spark plugs.
7. Using compressed air source,
blow any debris away from spark
plugs to prevent any foreign objects
from falling into cylinders once spark
plugs are removed. Remove ALL spark
plugs.
⁵/₈"
spark plug socket
!
NOTE: Mark each spark plug
with the cylinder number that
it was in. If there is a problem,
this may help locate which cyl-
inder has the issue.
8.
Perform a spark plug inspection,
cylinder leakage test, dynamic com-
pression test, and key on fuel pres-
sure test. Record all values in follow-
ing tables for future reference.
Engine Component Good Bad
Spark Plug 1
Spark Plug 2
Spark Plug 3
Spark Plug 4
Spark Plug 5
Spark Plug 6
Spark plugs should not have any
unusual discoloration or pitting. We
recommend replacing all spark plugs
with new OEM parts. Check the gap on
spark plugs, whether they are being
reused or brand new. Gap require-
ments are posted on the inside of the
hood or in vehicle owner’s manual.
Engine Property Value Unit
Cyl. 1 Leakage %
Cyl. 2 Leakage %
Cyl. 3 Leakage %
Cyl. 4 Leakage %
Cyl. 5 Leakage %
Cyl. 6 Leakage %
Ideal cylinder leakage is less than 10 % ,
however you may see higher values
depending on the condition of your
vehicle. Banks Sidewinder
® Turbo
System can be installed on a vehicle
with up to 50
% leakage in a cylinder,
at the owner’s discretion. If you are
unsure whether your vehicle can sup-
port the Sidewinder
® Turbo System,
consult a qualified technician.
If you record cylinder leakage greater
than 50
% or if the leakage in a cylinder
is 2-3 times greater than the other
cylinders, there may be an issue with
the engine.
Take the vehicle to a qualified techni-
cian before installing the Sidewinder
®
Turbo System.
Engine Property Value Unit
Cyl. 1 Compression psi
Cyl. 2 Compression psi
Cyl. 3 Compression psi
Cyl. 4 Compression psi
Cyl. 5 Compression psi
Cyl. 6 Compression psi
Typical cylinder compression is 160-
185+ psi, with no more than 10
%
difference between the highest and
lowest values. If you record compres-
sion lower than 160 psi or a difference
greater than 10
% , there may be an
issue with the engine. Take the vehicle
to a qualified technician before install-
ing the Sidewinder
® Turbo System.
Key on fuel pressure: ______________
Technician Signature: ______________
Date: ____________________________
9 . Reinstall spark plugs and ignition
coil pack after checking spark plug
gaps. Apply dielectric grease to inside
of ignition coil pack boots.
Engine Health Inspection