Without being able to physically see a particular car on the dyno, the only smart option is to provide a somewhat wider safety margin in the tune. The power output will vary slightly in each gear, and generally the car is run in the gear that is closest to 1:1 — usually top gear in a three-speed or four-speed, fourth in a five-speed, and fifth in a six-speed. Photography Credit: Scott R. Lear Once the torque at every single rpm point is recorded, the dyno’s computer can compute a corresponding horsepower figure. Make sure there is adequate tread on your tyres, and ensure that the drive wheels have similar tread depth. Ever wonder whether you should be tuning on the street or on the dyno? Shop. About the author Andre Simon. Dave Heerdegen at Dtech Motorsport says: “If you are starting a project or considering modifications, speak to your tuner beforehand, so they can give some advice and guidance around the best options and expected performance outcomes. Depending how smart or advanced the dyno is, it will also be able to log parameters such as boost pressure and air fuel ratio and provide the tuner with torque and power graphs that can be analysed after a run. Rolling roads are also sensitive to issues such as tyre pressure and temperature, and this can affect their power reading. dyno testing your engine. dyno tuning is not just for performance vehicles. In this instance it doesn’t matter if we are tuning on the road or the dyno, the knock threshold will limit our ignition advance and hence the results we can get on the road are generally every bit as good as what we could hope to achieve on the dyno. The advantage of an inertia dyno is that it doesn’t have complicated power absorbers and this keeps the cost down. Generally, these drums are quite large in diameter —1.5m or more — and they are damned heavy. I recently bought a 09 Repsol and wanted baseline dyno numbers before installing all my upgrades and getting it tuned. With an increase in power levels comes more load on the driveline. Pay special attention to any areas that could suffer from a boost/vacuum/exhaust leak. Then there’s the mechanical strain. Ensure that your boost control is correctly plumbed in and wired. The power absorber may be a water brake, an eddy current, or hydraulic, depending on the manufacturer’s preference. Much time, money and testing is invested into creating a flash tune. Detonation from incorrect timing or fuel mixture can be terminal in just one loaded run in the car. The dyno is a controlled environment specifically designed to make remapping and measurement of power as safe and effective as possible. Also, is Turbo Boost Short Power Max okay to bump up by 3w from 47w to 50w and Power Max from 58w to 60w? of torque at 10,000 rpm. We aim to cover everything automotive that might be of interest to our readers with in-depth reporting, breaking news coverage, event galleries, product information, and community content from a dedicated team of professionals who are expert in their field of car culture knowledge. Every Stage from mild to wild is available. So, is dyno-tuning-files.com safe? When we have a car on the dyno, obviously we can see exactly what’s going on - We are directly monitoring AFR and can listen for knock. I'd say it doesn't have EVERYTHING you need, but it is the perfect bot for moderation. What is E85? Learn more. Using a specialised dynamometer your trusted Repco Authorised Service technician can perform essential adjustments to your vehicle without guesswork, allowing them to carefully tune the air/fuel ratio to exactly match your type of motor and create maximum efficiency. A load bearing dyno (Torque Performance's dyno) on the other hand will have some form of power absorber module (hydraulic, eddy current or water brake are all popular techniques) that will allow the dyno to vary the load applied to the engine to hold the rpm constant. In the same vein, don’t forget to ask around, check out reviews, and make sure you’re 100-per-cent happy with the person who will actually be tuning your car. It’s difficult to adequately replicate the cooling airflow you would expect to see on the road, Easy access provided you have a straight stretch of road, You’re tuning the car in exactly the same conditions it will be used in, Ability to access the very light load areas of the mapping that can be impossible to reach on a dyno, Transient or acceleration enrichment tuning is often easier to accomplish on the road than a dyno, Safety can be compromised if you are attempting to tune a car while controlling it on a road, No feedback on the effect of tuning changes, Local laws may effect your ability to view a laptop while driving, Unlikely to offer the ultimate power your package is capable of, Homework is required to make sure you deal with a reputable tuner prepared to back their workmanship. Our buddy Andy, who we met autocrossing about 15 years ago, owns this 2012 Subaru Impreza WRX STI hatchback. Further, as you increase the grunt, the drivetrain losses don’t necessarily increase at a constant rate. New vehicles leave the factory with their engine’s tuned to generic driving conditions to account for a wide range of driving environments, driving patterns, and types of terrain (hilly, flat, mountains, etc.). Use the recommended heat range. Tuning your car through the use of a dynamometer should be thought of as more of a scientific experiment than a garage project. I’ve just mentioned the term ‘load bearing’, and that deserves a little more explanation. The advantage here to the tuner is that the dyno can provide instant and accurate feedback about the progress of their tune. If you’re heading to a dyno tuner with a hub dyno, your wheels will need to be removed; ensure that you have your lock-nut key. Advise us if your lug nuts are an abnormal thread pitch (we stock M12x1.5 and M12x1.25). Geoffrey Moulton, at MCR Automotive, says:“We can only work with what the customer brings us. Check the tyre pressures — ensure the pressures are identical, or nearly so. Ask your operator to see if his dyno is running on a live weather station or pre-programmed figures.”. Dyno Tested: Cobb Tuning Stage 2+ Power Package. Dyno tuning is the process of checking different engine and drivetrain components after they have been tuned to assess their performance. Let the tuner know if there are any known issues or past problems, as it will save you time and money. Do not turn up with semi- or full-slick tyres if your vehicle is getting tuned on a rolling road. If there's a problem others cant fix, we’ll find it! So when it comes time to finally get your car loaded onto the trailer and on its way to the dyno shop, why wouldn’t you want to be as prepared as you possibly can be? It tuned tune every combination of load and rpm properly to ensure maximum.... 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