K&N Engineering 57-9004 User's Manual
Contents
1. INSTALLATION INSTRUCTIONS CAUTION PLEASE READ CAREFULLY AND COMPLETELY BEFORE BEGINNING WORK ON YOUR VEHICLE K amp N suggests that you have a repair manual available for reference during installation of the K amp N Filterchargere Injection Performance Kit TOYOTA SUPRA TURBO FIREWALL ENGINE COMPARTMENT INTER COOLER TUBES L e MASS AIR BRACKET e a INTAKE A HOSE VACUUM f HOSES MASS AIR k 27 ENGINE SENSOR l 4 AIR CONDITIONING LINES amp BRACKET AIRBOX FRONT OF VEHICLE INSTALLATION Disconnect the vehicle s negative battery cable Remove the inter cooler tubes from the vehicle held in place by hose clamps see fig 1 Remove the bolts holding the airbox to the body There are 2 on the airbox and 1 on the mass air bracket Loosen the hose clamp where the intake hose connects to the mass air sensor Carefully unplug the power cable from the mass air sensor held in place by a small spring clip and remove the wire from the mass air sensor hooked to a small bracket with a plastic clip Un hook the vacuum hoses from the mass air bracket Do not remove them from the vehicle Remove the mass air sensor and airbox as an assembly Unclip the airbox lid and remove the air filter Remove the nuts holding the mass air sensor to the airbox there are metal locking tabs over the nuts that must be bent out of the way with a straight bladed screwdriver Remove the foreign object deflector s2. L bracket at the adapter and the hose clamp on the intake hose Re connect the vacuum hoses to the mass air bracket Plug the power cable in to the mass air sensor and secure the wire to the sensor with the plastic clip Install the K amp N Filtercharger onto the adapter do not over tighten hose clamp Install the inter cooler tubes back into the vehicle Re connect the battery cable Double check to make sure everything is tight and properly positioned before starting the vehicle The C A R B exemption sticker attached must be placed in a visible area under the hood so that an emissions inspector can see it when the vehicle is required to be tested for emissions California requires testing every two years other states may vary It will be necessary for all FIPK s to be checked periodically for realignment clearance and tightening of all connections Failure to follow the above instructions or proper maintenance may void warranty FREE K amp N DECAL To register your warranty please see us online at knfilters com register FREE K amp N DECAL ROAD TESTING Start the engine with the transmission in neutral or park and the emergency brake on Listen for any air leaks or odd noises If there are air leaks make sure the hose connections are secure If there are any odd noises check for the cause and repair before proceeding The K amp N Filtercharger Injection Performance Kit will function identically to the factory air filter wi
3. creen and separate the mass air sensor from the airbox CAUTION The honeycomb material in the mass air sensor is very fragile Be careful not to damage it Remove the 4 studs from the mass air sensor If you thread two nuts on to the stud and tighten them together you can then back the stud out with the bottom nut fig 1 l fig 2 Allen bott 20mm Allen dolt Remove these two eed A hose clamps ard take inter vvoier tubes out as a unit 15mm Aller bolt 12 Install the K amp N filter adapter onto the mass air sensor using the stock gasket and four allen bolts Use a thread locking compound and do not over tighten the bolts see fig 2 13 Install the L bracket onto the 20mm bolt using the nylock nut provided but do not completely tighten at this time see fig 3 Put the bracket and nut on AIC lines the 20mm long Allen bolt use this bolt to after it is tightened into the APRO l secure the f g 4 mass air sensor l L bracket A inner fender panel Remove the bolt holding the air conditioning lines to the fenderwell If the vehicle is not equipped with A C the hole will be empty see fig 4 Install the mass air adapter assembly into the intake hose but do not tighten the hose clamp at this time Use the original bolts to secure the mass air bracket and the L bracket to the fenderwell If the vehicle is not equipped with A C use a supplied allen bolt to secure the L bracket Tighten the nut on the
4. ial in further smoothing out the incoming air flow and allowing for a less restrictive entry into the engine Air moving in a straight direction moves faster than tumbling air thus creating an increase in air flow See the figure below AIR CLEANER DESIGN EFFECTIVENESS To design an effective performance air filter assembly two factors must be considered the air filtering element and the air filter adapter On fuel injected computer controlled vehicles there can be a substantial gain in performance by using a less restrictive air filter assembly Original equipment air filter assemblies tend to be more restrictive than the performance enthusiast would like therefore by changing to the less restrictive K amp N FIPK the air flow potential of the engine can be fully maximized without jeopardizing important emission standards see figures below EMISSIONS LEGAL The FIPK is street legal for use on the emission controlled vehicles that it was originally designed to fit These kits replace the original air filter case and do not eliminate the emission controls The high temperature label contains the EO assigned by C A R B that will allow a vehicle installed with the FIPK to pass the visual inspection at an authorized Smog Inspection station BEFORE F LP K air sensor to engine filter element OEM air filter assembly air intake air sensor to engine ME FIPK assembl NM
5. ri FILTERCHARGER INJECTION PERFORMANCE KIT INSTALLATION MANUAL Toyota Supra Turbo 1987 1993 L6 3 0L Turbo P N 57 9004 CARB E O D 269 3 K amp N Engineering Inc 1455 Citrus Avenue P O Box 1329 Riverside CA 92502 K amp N Filterchargere Injection Performance Kit 57 9004 Application 1987 93 Toyota Supra Turbo L6 3 0L engine Air flow sensing device Karman Vortex air flow meter BASIC DESIGN CONCEPT This K amp N Filterchargere Injection Performance Kit hereafter referred to as FIPK is designed to be less restrictive than the OEM air filter system Low restriction air filters allow the engine to have better throttle response as well as more power throughout the RPM band K amp N has designed this FIPK to exactly replace the OEM factory air cleaner case with a precision engineered aluminum adapter and all the necessary mounting brackets bolts screws and nuts Additionally it is important to note if the O E M air cleaner case has emission control devices and or hoses that all these parts will be installed as necessary to the new assembly Each FIPK has a specially designed filter with woven cotton fabric sandwiched between 2 layers of wire mesh screen The screen and fabric combination creates a grid like effect which actually straightens out the incoming air as it passes through the filter In addition to the filter this kit has a uniquely designed adapter with a built in velocity stack This velocity stack is benefic
6. th the exception of being slightly louder than stock and much more responsive If all preliminary checks are okay then a road test is necessary Listen carefully for rattling or other odd noises and fix as necessary If the road test is fine you can enjoy driving as normal with the added response and power We suggest that the Filtercharger element be checked periodically for dirt This is now very easy due to the open element configuration If the filter material is overly dirty service it according to the instructions that are in the Recharger service kit part number 99 5050 or 99 5000 If you have any questions or problems inquire at your nearest K amp N dealer or direct to K amp N Engineering at 909 684 9762 PARTS LIST STOCK PARTS desc part 6mm 1 00 x 16mm allen bolt 07818 6mm 1 00 x 20mm allen bolt 07852 6mm 1 00 nylock nut 07553 L bracket 07868 die cast filter adapter 08842 size 104 hose clamp 08697 Filtercharger element RC 2960
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