D2 - This point is where the tuner ended the modified dyno run with the raised 7,300 RPM redline. A dyno tune that is attached to an engine directly is called an engine dyno. In fact, you might be worse off than if you didn't put those parts on. At the dyno you can tune your car and stop guessing if the change you made actually did anything. When I put in cams, probably this winter, I'm going to get a dyno tune. Dr. Dyno's Tuning Tips When you take your bike to a dyno for tuning by an "expert" why would you leave without it expertly tuned? D1 - This point is where the tuner ended the baseline dyno run nearing the factory redline. We have experience tuning E85 in almost every application using most every fueling system available. A tune could consume anything from 20 litres through to 80 litres or more depending on how long the car spends on the dyno, so give yourself the best chance with a full tank. A necessity for racers and street rodders to get the most out of their vehicles. We like to run almost full boost right away afer the car has been dialed in to the proper Air to fuel and ignition timing. You can bolt on parts all day long, but without making the necessary changes in the ECU, not much will come of it. The dyno is just that useful. Dyno tuning allows us to give your vehicle a tune-up of unparalleled quality, providing you with the smoothest, most economical performance possible from your vehicle. 2. Then we put the car on the dyno, tune it, run it hard….rings need PRESSURE to be able to seat so running the engine up to 75% will help those rings seat better. A dyno is one of those tools that opens up people’s eyes and changes the way they do things. Dyno tuning is expensive and people expect results. It’s kind of like a timing light: Once you learn how to use it, you’ll never do static ignition timing again. Dyno software can even correct for the day’s atmospheric conditions. Step 9: Try It, You’ll Like It. Tuning isn’t magic and to properly tune your engine, it’s going to need fuel. I'll know what they did, and I'll be able to compare recorded runs (the new Super Tuner lets you record and download up to 15 minutes of live data-- so I'll do one before the dyno, and one after). When a Harley comes off the Doc's dyno, he wants you to have: Maximum torque and usable horsepower; Silky smooth power at all throttle openings. Step 3) Do a dyno pull and datalog all your sensor input Step 4) Make your changes based on your a/f ratio targeting 11:1 to 12:1's. The chassis dyno is a great way to find out how much power your car is making. E - This point is 5,252 RPM. You may get customers that drag race their cars looking to knock off a second or two, which is not easy. This is where we start working with boost pressure. Good fuel mileage, typically 42-45 at reasonable highway speeds. Dyno tuning is one of the safest and easiest ways to get more power out of your car. 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