Horsepower gains and driveability improvements can be made on the dyno by tuning fuel pressure and ignition timing, and by custom tuning computer chips and/or flash tuners such as the SCT XCalibrator 2 or Live Wire. We have experience with Anderson PMS, Crane Interceptor, Accel DFI, and Pectel stand-alone fuel injection systems, in addition to SCT. In addition to horsepower and torque, our dyno can datalog Air/Fuel ratio, boost & vacuum, and fuel pressure. OBD II vehicles are datalogged with SCT Live Link software. EEC-IV vehicles can also be datalogged using our Race Systems SnEEC datalogging interface. FREQUENTLY ASKED QUESTIONS ABOUT THE DYNO Q. How much does it cost to dyno my Mustang? A. A basic dyno check of a Mustang is $85 for 3 runs with a printout of Horsepower, Torque, Boost(when applicable) and Air/Fuel ratio (tailpipe probe). A/F readings can be taken from the midpipe for an additional $30. All other vehicles are $100 to $130. (Mustangs cost less because our datalogging equipment and dyno straps are already configured for them.) Typical dyno tuning costs are as follows: Hardware required: SCT chip $269 (plus $30.00 to install the chip) or SCT XCalibrator-3 Flash tuner $379 Dyno Tuning: Most dyno tune rates fall into one of three categories: $225 ... Basic Naturally Aspirated (NA) tune with minor bolt-ons and a manual transmission. $300 ... Typical “heads/cam/intake” (HCI) combinations, cars with larger than stock fuel injectors or aftermarket cold air intakes that require re-mapping the MAF curve, computer controlled automatics that have to be locked into gear for the dyno. $400... Supercharged vehicles or any combination requiring 50lb or larger injectors, race vehicles with 3500+ stall converters. Turbocharged and Nitrous Oxide tunes start at $400 but may go as high as $550 depending on the vehicle. Dyno Tuning charges are in addition to the cost of the chip or flash tuner (if required). For cars running leaded race fuel there is an additional charge of $15 per full throttle pull plus $30 for part throttle tuning. This covers the cost of replacing the sensor on our wideband Air/Fuel ratio gauge, which is harmed by leaded fuel. Dyno rates may vary for special applications, such as racecars requiring custom work, other brand vehicles, different tuning software, etc. Dyno tuning prices listed here may include standard tuning procedures (as required) such as setting timing, adjusting fuel pressure, tightening supercharger belts, and checking 1 spark plug to make sure the correct type and heat range is installed. These prices do not include mechanical repairs such as changing clogged fuel filters, changing or re-gapping spark plugs, fixing supercharger belt alignment problems, or repairing other pre-existing mechanical issues. Important notes about tuning cars with Nitrous Oxide: We will only tune cars that have functioning pressure gauge and bottle warmer. Knowing and controlling your nitrous pressure is crucial to good performance with nitrous oxide. We simply will not send a car out the door with our name on the tune while guessing about the bottle pressure it was tuned with. You must bring the car to be tuned with a FULL nitrous bottle, or inform us at least 24 hours before your tuning appointment if you need your bottle filled. If the bottle runs low during tuning we cannot continue the tune until the bottle is refilled. This ties up scarce dyno time. If we have to refill your bottle to finish your tune you will be charged for the bottle re-fill and the time it takes to un-strap and then reconnect your car to the dyno, so that we can dyno other cars while your bottle is sent out to be filled. Q. Do I have to buy a chip (or tuner) for dyno tuning? A. 86-93 Mustangs can usually be tuned fairly well with just an adjustable fuel pressure regulator and a timing light, provided the MAF is calibrated correctly and 30lb or smaller fuel injectors are being used. All other Mustangs require a chip or flash tuner to make proper tuning changes. Q. I already have a chip (or Flash Tuner). Do I have to by a new one? A. It depends on what brand you have. We can re-write SCT brand chips and XCalibrator or Live-Wire Flash tuners. If you have another brand of chip we can not re-write it. You will have to purchase a new chip. If you have a Diablo Predator we can make adjustments to the Wide Open Throttle (WOT) fuel and timing using the on-screen adjustment in the handheld unit. More involved tuning will require a switch to the SCT XCalibrator-2. Q. How long does it take to tune a car on the dyno? How many passes do you make? A. The short answer is “As long as it takes." Regardless of the combination, we tune the car until it is right. There is no pre-set limit on how many pulls we will do. That means that some cars are very simple to dial in, with straightforward combinations of parts, meters that are calibrated perfectly, fuel systems that are working right, etc. Those cars are done in about three hours with as little as three or four full throttle pulls and a few "miles" of part throttle tuning on the dyno. Other cars have more complicated setups (high stall converters, MAF transfer functions that need a lot of work, injectors or meters that are past capacity ["pegged"], FMUs that have to be recalibrated, fuel pressure that needs to be adjusted, supercharger belts that are slipping, etc). A really complicated car could take all day and 15 or more passes. Q. Is the dyno hard on the car? What are the risks involved? A. Running the car on they dyno puts no more load on the engine than going full throttle on the street (or track). In many ways running a car on the dyno is actually safer than running your car full throttle on the street (or track), because conditions such as air/fuel ratio, coolant temperature and ignition timing are monitored closely. Any time an engine is operated at full throttle, whether on the street, racetrack or on the dyno, there is a small risk of something going wrong or a component failing. While this risk is actually somewhat smaller in the closely monitored environment of a dyno session, the risk still exists none-the-less. Realspeed Automotive, its employees and owners assume no liability for engine or driveline damage that may occur while the vehicle is operated on the dyno. All dyno work is strictly and expressly AT THE CUSTOMERS'S OWN RISK. All dyno services require a signed liability release form. dyno run |
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