T YOUR MODIFIED ENGINE FOR MAXIMUM PERFORMANCE …

1 Match larger injectors to a MODIFIED ENGINE On-the-fly adjustment from the driver s seat Fine tune for MAXIMUM horsepowerThe ARC1 provides precise adjustment of air/fuelratio. It is ideally suited to re-establish the proper fuelmixture in MODIFIED , fuel injected engines. Its two frontpanel controls are calibrated and detented to allowprecise and repeatable settings. The ARC1 is well suitedfor recalibrating engines that have been may also be used to compensate for changes indriving conditions, elevation or front panel controls of the ARC1 operate as follows:LOWThe low control addsa variable offset to theinput signal.

2 It thereforemoves the output up ordown (rich or lean) by a fixed amount over theentire operating range. It is called LOW becausechanges in offset cause amuch greater percentagechange at low engineloads. Idle and cruise are low load HIGH controlchanges the signal therefore changes theoutput level by a fixedpercentage over the entireoperating range. It iscalled HIGH because it isthe primary way to adjustthe air/fuel ratio at highloads. High loads occurduring full throttleacceleration and climbing steep grades.+ INPUT VOLTAGEOUTPUT VOLTAGE+ INPUT VOLTAGEOUTPUT VOLTAGE OBDII compatible Ideal for cars with mild modifications On-the-fly adjustableThe ARC1-003 is designed specifically for lightlymodified engines.

3 It is particularly well suited for latemodel OBDII engines. It follows a stock fuel curve in theidle and light load regions. It allows for a deviation fromthe stock fuel curve at an adjustable threshold this threshold, the fuel curve can be MODIFIED tobe more rich or lean by an adjustable LOW controladjusts the thresholdwhere deviation from thestock fuel curve control input can bemass air flow, TPS orsome other signal. HIGHThe HIGH control setsthe amount of deviationfrom the stock fuel curveabove the VOLTAGEOUTPUT VOLTAGEINPUT VOLTAGEOUTPUT VOLTAGEAIR/FUELRATIOCALIBRATORARC1 AIR/FUELRATIOCALIBRATORARC1-003 LOW, MID, HIGH and ACCEL controls Crisp throttle response Improve midrange PERFORMANCE Mass flow conversion Panel illumination and night dimmingThe ARC2 Air/fuel Ratio Calibrator provides aneffective way to calibrate fuel mixture over the entireload range of the ENGINE .

4 Its four front panel controlsare calibrated and detented to allow precise andrepeatable settings. Adjustment of the ARC2 can bemade on-the-fly from the driver s seat to optimize engineperformance for the current driving situation. It canalso be used to recalibrate MODIFIED engines includingthose converted to forced induction with a turbo ARC2 picks up where the ARC1 leaves off. In addition to the LOW and HIGH controls of the ARC1,the ARC2 has controls for MID and ACCEL. Theyoperate as follows:MIDThe MID controlalters the linearity of theinput signal. Increasingthe MID control bows thecurve so that mid-loadvalues are boosted morethan low and high loadvalues.

5 The MID controlis used to fine tune theair/fuel ratio at moderateacceleration boostmomentarily makes theair/fuel ratio richer. Thedegree of enrichment isrelated to the rate ofchange of the TPS inputand the amount of boostselected by the ACCEL control. ACCEL boost isused to optimize VOLTAGEOUTPUT VOLTAGE+ +INPUT VOLTAGEOUTPUT VOLTAGEARC2-AThe ARC2-A is specifically designed to replace airflow meters with mass air flow sensors. Conversion to aMAF sensor removes a major restriction on the engineand boosts horsepower and torque. The ARC2-Aperforms the specific elevation compensation andsignal filtering required for MAF ARC2-GM is specifically designed to calibratethe frequency output of late model GM MAF ARC2-K is specifically designed to replaceKarman Vortex type sensors with MAF sensors.

6 It doesall the signal conditioning necessary to make the MAFsensor signal output look like a Karman Vortex ARC2-NE is used when the same type ofvoltage-based air flow meter is retained, but calibrationof the signal is required. It can be used to calibrate fora larger MAF sensor or a wide variety of other is designed to be mounted in a hiddenlocation and features a single mixture control that canbe conveniently located for adjustment from thedriver s VERSIONS OF THEARC2 AIR/FUELRATIOCALIBRATORARC2 Fuel and timing control in one product Up to 20 degrees of timing retard Laptop programmable with the R4 software Available with ESC1 function built-inThe FTC1 combines the laptop programmability of the PSC1 with the timing control of the TMC1.

7 Theresult is a complete fuel and timing calibration solutionthat works in conjunction with the stock FTC1 is programmed with the Split Second R4 ENGINE calibration software. The software has two 3-dimensional map tables. The FTC1 can be used withboth MAP sensor and MAF sensor FTC1 comes in many different versions. It mustbe ordered for a specific model of vehicle. Some versionshave an internal bar MAP sensor which can replace thestock one-bar MAP sensor. Other versions operate involtage mode and are driven off of the stock MAF sensor. As with all Split Second products, the FTC1 isavailable on a semi-custom basis.

8 One of the optionsavailable is to combine the AIC1 with the TMC1 for afuel/ timing calibrator that controls fuel through additionalinjectors rather than by conditioning the MAP or MAFinput to the stock ECU. 3D mapping of timing retard over RPM and intake pressure Adjustable from the driver s seat Compatible with modern OBDII engines withindividual coils Panel illumination and night dimmingThe TMC1 timing Map Controller provides the abilityto precisely control ignition timing retard as a function ofboth intake manifold pressure and RPM. It is primarilyintended for engines that have been converted to forcedinduction through the addition of a turbo or boost pressure increases, ignition timing is retardedin a smooth progressive fashion.

9 This makes it possibleto boost manifold pressure without inducing harmfuldetonation. It is compatible with modern engines thathave individual ignition coils and will not degrade theperformance of the ignition system. Several differentversions of the TMC1 are available. These versions aretailored for specific models of vehicles. The TMC1 has four front panel controls. The functionof the THRESHOLD and RETARD controls are as follows:THRESHOLDThe THRESHOLD control adjusts thethreshold level of intakemanifold pressure atwhich the TMC1 willbegin to retard this threshold notiming retard will zero point of theTHRESHOLD control isset at atmosphericpressure.

10 The range of adjustment is from 15 inHg ofvacuum to +7 PSI of manifold RETARD controlsets the sensitivity oftiming retard to anincrease in manifoldpressure. It may be setover the range of zero to 2 /lb of boost in /lbincrements. Timingretard begins at themanifold pressure set bythe THRESHOLD control,while the amount of timing retard is set by the RETARD PRESSURE(DEG)+10+200 10 20+ 7 PSI 15 inHgVACUUM PRESSURE0 2 /lb(DEG)+10+200 10 20 TIMINGMAPCONTROLLERTMC1 FUEL/TIMINGCALIBRATORFTC1 Stand-alone style 3-D fuel mapping Laptop programmable Direct output or signal modify modes Can operate as programmable MAP sensorThe PSC1 Programmable Signal Calibrator providesprecise calibration of fuel by adjusting fuel controlsignals.