LS Perimeter Plate Nitrous System
Contents
1. 82195 LS Perimeter Plate Nitrous System Thank you for choosing ZEX nitrous we are proud to be your manufacturer of choice Please read this instruction sheet carefully before beginning installation and also take a moment to review the included limited warranty information Why Our Nitrous System Is Better e A complete nitrous system Everything is included in this kit for an easy professional installation e Adjustable from 100 250 HP safe enough for stock engines but powerful enough for all out racing e The ZEX LS Perimeter Plate Nitrous System part 82195 is activated at wide open throttle with advanced electronics that monitor your throttle position sensor TPS Easy and safe activation especially with throttle by wire systems e Perimeter Plate design ensures optimum nitrous distribution for maximum power and engine safety ZEX N ITRO US 3418 Democrat Rd Memphis TN 38118 HELP Phone 1 888 817 1008 Fax 901 375 3430 ary tract 888 817 1008 EOR BENSE AS Kit Parts List ee 2 Solenoid Bracket Seews___ 4_ os ao Fuel et __f1_ ating AN Patek a 2 _ Electronic Throttle Activation TPS Switch 1 45 deg Jet Fittings faite 102mm Gasket Red 18 GA Wire Adapter Insert O ring 2 2 l 4 4 2 Cap Screw Bolt M6 x 1 0x40mm J4 Cio Same Bo MSxx 0am 4 lamp OO NPT to 4 AN Filter e Fitting 2 20ampMiniRelay u 4AN to 1 8 NPT Fitting 5 16 18 X I Bolt for Bottle Brackets 4 101b Nitrous Bottle2. w Valve 5 16 18 Nut for Bottle Brackets 4 30amp Fuse Holder Quick Start Reference Guide How the ZEX LS Perimeter Plate Nitrous System works The ZEX Part 82195 nitrous oxide injection system begins with a connection to a supply cylinder containing pressurized liquid nitrous oxide and a connection to the engine s fuel system These connections go the fuel and nitrous solenoids These solenoids are normally closed but are opened when the electronic TPS switch senses that the nitrous system is armed and the engine is at wide open throttle Once these solenoids open the nitrous and fuel are delivered to the LS Perimeter Plate via flexible delivery lines The amount of nitrous and fuel that is injected through the Perimeter Plate is adjustable by means of metering jets installed in the plate itself These metering jets allow for easy changes in horsepower settings Work safely Always wear eye protection and gloves when working with lines or hoses that contain pressurized nitrous oxide or fuel Never transport nitrous cylinders loose in a trunk or the back of a pick up truck and especially NOT within a vehicle s interior whether the cylinder is full OR empty Always disconnect the GROUND side of the battery when working on any electrical components Nitrous oxide won t fix problems you already have Before you install your nitrous system be sure your engine is in good mechanical condition Intermittent wiring problems etc can l
3. you hit the rev limiter Spark plugs and nitrous performance Quite often factory type wide gap projected nose spark plugs will produce a detonation condition after a few seconds of nitrous use The solution to the problem is to install spark plugs that have a colder heat range and proper ground strap design for nitrous use Consult your preferred spark plug manufacturer to ensure you install the correct plugs for the nitrous level you choose to run Also due to the cooler and denser inlet air charge that nitrous creates 1t may be necessary to close up your spark plug gaps to eliminate any misfiring In our experience 030 to 035 in spark plug gaps typically will ensure proper ignition You may be able to run a wider gap or you may have to close them up just be aware of this if you start to experience an ignition misfire when you are using your nitrous system Do not use Teflon sealing tape on any fittings in a ZEX nitrous system It is easy for Teflon tape to get pulled into the system causing blockages that can ultimately lead to incorrect nitrous system performance and potentially engine damage Only use liquid thread sealer for all NPT type fittings Do not use any thread sealing compound on AN style threads Do not attempt to start your engine if nitrous has been accidentally injected into the engine while it was not running Disable the ignition and with the throttle wide open turn over the engine for several seconds to clear the n
4. SWITCH GROUND ZEX N ITRO US 3418 Democrat Rd Memphis TN 38118 HELP Phone 1 888 817 1008 Fax 901 375 3430 ary tract 888 817 1008 encom REVIERE IMPORTANT TECH NOTE FOR THROTTLE BY WIRE VEHICLES Due to the sensitivity of GM s newer throttle by wire systems the ZEX Electronic Throttle Activation Switch may cause intermittent check engine lights on some vehicles if the included TPS resistor wire Fig 8 is not used It is required that you install the included white TPS resistor wire between the engine s Throttle Position Sensor TPS output wire 0 5 volt type signal and the white TPS wire going to the ZEX Electronic Throttle Activation Switch Use of this resistor will effectively isolate the Electronic Throttle Activation Switch and prevent check engine lights from occurring This resistor in no way affects the activation or performance of your ZEX nitrous system C The next step is to program the Electronic Throttle Activation Switch To begin turn the vehicle s ignition on but do not start the engine Turn the nitrous arming switch to the ON position Go to the Electronic Throttle Switch ETS and locate the push button Depress then release the push button switch Observe the ETS Operation Light At this point it should be RED This RED light informs you that the ETS is in learn mode Return to the driver s seat and depress the accelerator pedal to the floor holding it there for ten seconds Re
5. ead to erratic system performance and possible engine damage ZEX N T R O U S 3418 Democrat Rd Memphis TN 38118 HELPED Phone 1 888 817 1008 Fax 901 375 3430 T 888 817 1008 a BENSE AS Never defeat operation of the safety relief disc in the nitrous cylinder s valve It s required by law and is there for your safety Never drill machine weld deform scratch drop or modify a nitrous oxide tank in ANY way whatsoever Never overfill nitrous cylinders That little bit extra will put you and others at risk of injury More often than not when the cylinder warms up the pressure goes above the limit of the safety relief disc and you lose all the nitrous you just paid for All the power comes from the fuel not the nitrous Nitrous oxide is simply a tool that allows you to adjust how much and how quickly the engine burns the fuel If the fuel isn t there the power won t be either Avoid detonation at all times Nitrous enhanced detonation is much more damaging than detonation that occurs when naturally aspirated due to the increased amount of fuel available for releasing energy and the fact that more oxygen is present When the system is activated if something doesn t feel or sound right BACK OFF If you hear any detonation or feel anything unusual get off the throttle It s a lot easier to check everything over than it is to just try to drive through it and damage expensive parts Don t activate or have the system activated when
6. evel obstacles such as speed bumps Mount bottle separated from passenger compartment or use a Safety blowdown kit Note ZEX Part 82110 or 82111 Run nitrous delivery p sg ngs plug line under car In the trunk as an exit for the nitrous supply line 4 Mount Nitrous and Fuel Solenoids Assemble the 4AN filter fittings into the inlet side of both the nitrous and fuel solenoids Install the 1 ft long 4AN hoses into the solenoid outlets Make sure you use a liquid thread sealant on all NPT pipe threads Attach the solenoid brackets to the solenoids using the pan head Allen screws and find suitable mounting locations for them Finally attach the 16 ft nitrous line to the inlet of the nitrous solenoid and attach the 3 ft long 4 AN fuel feed line to the inlet of the fuel solenoid 5 Install LS Perimeter Plate Using a liquid thread sealant install the 45 deg jet fittings into the Perimeter Plate fuel and nitrous inlets Fig 6 If you are using a 90mm sized throttle body install one of the supplied o rings onto the Adapter Ring and after lubricating the o ring with some WD 40 slide the Adapter Ring into the center of the Perimeter Plate Fig 5 Notice that the Adapter Ring has an extension which fits into the Perimeter Plate s alignment notch for proper orientation If you are using a 102mm throttle body there is no need to use the adapter ring Using the included 4 AN line 90mm Throttle Alignment Notch 45 deg Je
7. he responsibility of the installer to ensure that all of the components are correct before installation We assume no liability for any errors made in tolerances component selection or installation There is absolutely no warranty on the following A Any parts used in racing applications B Any product that has been physically altered improperly installed or maintained C Any product used in improper applications abused or not used in conjunction with the proper parts There are no implied warranties of merchantability or fitness for a particular purpose There are no warranties which extend beyond the description of the face hereof ZEX will not be responsible for incidental and consequential damages property damage or personal injury damages to the extent permitted by law Where required by law implied watranties or merchantability and fitness are limited for a term of 1 one year from the date of original purchase This watranty gives you specific legal rights and you may also have other legal rights which vary from state to state ZEX N T R O U S 3418 Democrat Rd Memphis TN 38118 HELPED Phone 1 888 817 1008 Fax 901 375 3430 o 888 817 1008 a PERA
8. ion timing is set correctly All recommended ignition timing retard amounts on the Tune Up Sheet are calculated off of the base ignition setting If the ignition timing is not set correctly severe engine damage may occur ZEX 82195 Nitrous System Tune Up Sheet Po 100 AP 150 HP 200 HP 250 HP Nitrous 950psi 28 Fuel 58psi p28 Ignition Retard deg 4 6 8 0 Naturally aspirated tuning requirements For engines less than 10 25 1 compression ratio using nitrous system settings of 100 hp or less pump premium fuel is required for safe operation of your ZEX LS Perimeter Plate Nitrous System For engines with 10 25 1 compression ratio or greater using nitrous system settings higher than 100 hp high octane racing fuel is required for safe operation of your ZEX LS Perimeter Plate Nitrous System Nitrous system fuel pressure must be at least 55psi at the inlet of the fuel solenoid Limited Warranty ZEX warrants that all of its products are free from defects in material and workmanship and against excessive wear for a period of 1 one year from the date of purchase This limited warranty shall cover the original purchaser ZEX s obligation under this warranty is limited to the repair or replacement of its product To make a warranty claim the part must be returned within 1 one year of purchase to the address listed below freight prepaid Items covered under warranty will be returned to you freight collect It is t
9. itrous from the engine Failure to do this before restarting the engine can lead to a dangerous intake system backfire Do not engage your nitrous system below 2500 rpm This ensures that you will not have excessive cylinder pressures that could cause engine damage The ZEX Traction Control Window Switch Part 82085 is ideal for controlling the rpm range that your nitrous system operates in When finished using your nitrous system close the nitrous bottle valve and relieve the line pressure This eliminates the possibility that nitrous could inadvertently accumulate in the intake manifold while the nitrous system is not being used Do not run excessive bottle pressures Excessive bottle pressures over 1100psi are dangerous to your engine Your ZEX nitrous system is calibrated and optimized to operate from 900 1000psi Exceeding this will not improve performance Over 1100psi also runs the danger of locking the nitrous solenoid closed due to excessive pressure working against the valve s plunger If this happens you must cool the nitrous bottle down to lower the pressure This will allow the valve to operate properly again ZEX N T R O U S 3418 Democrat Rd Memphis TN 38118 HELPED Phone 1 888 817 1008 Fax 901 375 3430 eo 888 817 1008 a BENSE AS Start with the lowest horsepower setting and work your way up This ensures if you have any tuning issues to work out on your vehicle they will get sorted out with a smaller sh
10. lease the TPS Resistor Wire accelerator pedal and go back to the ETS and observe the Operation Light At this point the light should be flashing continuously from RED to GREEN to OFF This is the ETC s way of telling you that it has successfully learned the voltage curve of your engine s throttle position sensor Go back to the driver s compartment and turn off the system s arming switch then turn it back on Go back to the ETC and observe the Operation Light It should be solid GREEN at this point This informs you that the system is armed and ready to activate at wide open throttle Return to the driver s seat and depress and release the accelerator pedal several times You should hear the solenoids click each time you reach wide open throttle At this point your Activation Switch is fully programmed and ready for use If you ever transfer your nitrous system to another vehicle perform this same procedure on the new vehicle to relearn the Throttle Activation Switch 7 Install Fuel Delivery Line WARNING EFI fuel systems maintain fuel pressure even after the vehicle has been shut off A B C Before working on the vehicles fuel system it is important to relieve the fuel system pressure Refer to the factory service manual for the proper procedure in doing this Once the fuel system s pressure has been bled off we are ready to work on the fuel connections for the nitrous system Most GM engines have a fuel pressure test p
11. ort located on the factory fuel rail This provides a convenient place for us to tap into for the nitrous system s fuel needs First locate the fitting and verify that it matches the threads on the 3ft long 4AN fuel feed line provided in the nitrous kit If everything checks out use the provided Schrader Valve Core Removal Tool to unscrew and remove the core inside this test port fitting Attach the 3 ft long 4 AN fuel line to the fuel pressure test port 8 Check Fuel and Nitrous Pressure Lines A Perform a final inspection of all plumbing and electrical connections to ensure that they are correct B Ensure that the nitrous bottle is turned off and the line pressure is relieved ZEX NITROUS 3418 Democrat Rd LH E L PERD Memphis TN 38118 Part ZEX226 Phone 1 888 817 1008 Fax 901 375 3430 Revised 370711 008 WWwW zex com C Start the engine and observe all fuel connections for any leaks Fix any fuel leaks before proceeding D Turn off the engine E Open the nitrous bottle valve Listen carefully for any leaks as your valve is opened Leaks in the nitrous supply line will be obvious because they will be covered in frost F If everything checks out close the nitrous bottle and relieve the line pressure 9 Check Fuel Quality amp Ignition Timing The last thing to do before enjoying your new nitrous system is to ensure that the correct fuel for the HP you are making is in the tank and the engine s ignit
12. ot of nitrous that will be less likely to damage your engine Once you have the car working well on the smaller shot you can then safely start to step up your nitrous kit horsepower Make sure your vehicle has an adequate fuel supply Nitrous systems put a large demand on your vehicle s fuel system Make sure you have a large enough fuel pump to handle the demands of your engine as well as the nitrous system How to adjust power levels The ZEX LS Perimeter Plate Nitrous System is designed for multiple power levels Metering jets installed in the plate control these power levels To change the power output all you need to do is install the appropriate set of jets The correct combination of jets is listed on the tune up sheet at the back of this instruction manual Installation Instructions 1 Decide where to put everything Before you start to install the various components of this kit you ll have to find the best locations of each component by trial fitment and careful measurement First decide where you want to mount the nitrous and fuel solenoids Remember the stainless steel braided lines that connect the solenoids to the nitrous nozzle are 12 long The arming switch should be installed in a position convenient to the driver but not in an area where it could be accidentally armed Next decide where and how you l mount the nitrous supply bottle check Fig 1 2 3 and 4 for technical restrictions on bottle mounting location
13. s and positions Finally have a reputable performance shop fill your nitrous bottle with automotive grade nitrous oxide before you begin Do not overfill the nitrous bottle 45 Bracket Mount Outlet Outlet Flat Mount 2 Mount Nitrous Supply Bottle A Mount the nitrous supply bottle so that it 1s separated from the passenger cabin Fastback style cars that do not have separate trunk compartments have to be equipped with a safety blowdown tube ZEX Part 82099 Route the tube from the safety pressure relief cap to the exterior of the car preferably under the car Doing so will prevent your car from filling with a cloud of nitrous oxide should the safety pressure relief cap rupture ZEX N ITRO US 3418 Democrat Rd Memphis TN 38118 HELPED Phone 1 888 817 1008 Fax 901 375 3430 o 888 817 1008 E cau Revised 3 9 11 B Index the pickup tube with bottle position Refer to Fig 1 2 and 3 ZEX nitrous bottles are designed with the bottom of the siphon tube at the bottom of the bottle towards the outlet Always mount the bottle so that as your car accelerates the liquid flows toward the pickup tube 3 Mount nitrous delivery line under the car When routing the nitrous delivery line under the car try to use the subframe as a conduit Fig 4 This protects the line and eliminates the need to use clamps The supplied cable ties work if you can run the line higher in the under body so that it s safe from road l
14. t Body Adapter Ring Fittings is solenoi 4 AN line from nitrous solenoid Fuel Jet O ring Nitrous Jet Perimeter Plat a Nozzle ZEX N ITRO US 3418 Democrat Rd Memphis TN 38118 HELPED Phone 1 888 817 1008 Fax 901 375 3430 Part ZEX226 888 817 1008 E cau Revised 3 9 11 metric cap screws washers and appropriate gasket assemble the throttle body and LS Perimeter Plate onto the intake manifold Once the Perimeter Plate is installed place the appropriate tuning jets in the jet fittings and attach the 1 foot long 4AN hoses that come from the solenoids Fig 6 6 Wiring A Mount the arming switch in an easily accessible area for the driver B Using the supplied electrical connectors and wire refer to the wiring diagram for proper routing and electrical connections for the nitrous system see Fig 7 Always use the supplied fuse for electrical system protection in the event of a short in the system The best positive power source for the nitrous system s solenoids is a direct connection from relay post 5 to the battery s positive post Do not splice into the factory wire harness as it will not have the ability to supply the current required by the nitrous and fuel solenoids TPS RESISTOR WIRE TPS OUTPUT VOLTAGE WIRE Locate the 0 5 volt signal wire GROUND z ELECTRONIC THROTTLE FUEL NITROUS SOLENOID SOLENOID ACTIVATION GROUND SWITCH IGNITION ON 12V DC ARMING
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