Can you dyno tune a stock ecu

The bigger the combustion, the more oxygen it needs. Because of this, more power requires more fuel and oxygen. In the olden days, a car is very mechanical. The gas pedal was mechanically connected to the throttle. The more you press the pedal, the wider the throttle opens — allowing more air and fuel to enter into the combustion chamber. This was simple but it lacks control.

Plus it wears the tire much quicker. Instead, acceleration should be kept low when at low speed and then increase at a higher speed. These kinds of power output would not be possible in the olden days. An ECU takes input from various sensors in the car such as air flow sensors, oxygen sensors and temperature sensors. It then performs calculations and makes decisions by referring to the lookup table. If a car is currently producing 80Nm of torque from RPM, then by tuning — we can change the target torque to be 90Nm instead.

Of course this extra performance will come at the expense of increased fuel consumption and potentially more wear and tear problems. But you get the idea — tuning is all about changing the values in the lookup table and then testing it with the dyno to see if it does perform as expected. Tuning does not necessarily mean extra performance.

You are free to tune your car however you want. The list is endless. Racing teams tune their cars on a daily basis to ensure the car will perform at its best for the particular race track on that day. But how exactly? Instead, we will discuss how a chassis dyno works. Chassis dyno is the typical dyno that you see in the car tuning world.

The dyno rollers are hooked up to sensors which read the amount of force exerted on the rollers. Obviously — more force means higher horsepower.

Also, when your car is hooked up on a dyno, it is not actually moving — only the tyres are. This is why a dyno also requires a good cooling system to cool down the area and ensure the dyno tests are always accurate. All in all, dyno tuning means that you let your car run on a dyno to get some reading.

Then use your computers to adjust values in the lookup table and then let your car run again to test the changes. I think you have an EM1? Then they can tune it with crome or uberdata. MySiIzFaster said:. So they can just plug my shyt in and tune it??????

Im stil confused SeanJohn said:. I have a ctr cam in They are shit ECU's for the cost of the units. I had to spend hours and hours tuning the car below, instead of a simple 2 or 3 compared to if it ran a decient ECU. Posted 04 June - PM. Jett: kw at the wheels and runs 15psi will run mid 13s all day? Im sure thats a well tuned car.. In regards to chips and a microtech.. I know of so many 4 cylinders running VERY good times with a microtech..

But for me I think he has a FWD cc lancer jon. Even you must recognise that Mr kW evo. As well as this you haven't even understood what my point is about Microtechs - don't worry I'll get to your beloved Chips. If you knew anything about tuning a real ECU you would understand what I mean. Its OK though I'll explain it for you ANY aftermarket ECU will run an engine - how could it not - thats what it was designed to do - otherwise none would be sold would they?

Its to do with the poor user interface and terrible map point resolution. This is why many tuning shops simply refuse to tune Microtech's. Its not worth the effort to tune these things for many businesses because they cannot charge enough money to make it worth while. So therefore the car owner loses out becuase what they thought would be a cheap ECU turns out to be either poorly tuned or expensive to tune well. Now about eeprom chips - same deal yes of course they will run a car well of they are tuned properly but most of the time people buy an off the shelf chip designed for "the VR4" - modified cars are all different and hence these off the shelf chips have to be tuned with so much safetly factor that the power loss through too rich AFR's is ridiculous.

And the ones that have been tuned properly really do cost too much money for what you are getting. For the money spent on a chip and tune you can just about buy a full standalone ecu with infintely more features and the potential to run the engine so much better than a once off dyno tune - then seeya later out the door.

Don't bother coming back if you change your modifications because we have to make a new chip. Occasionally, you may also get Check Engine Light. If done correctly, the true potential of your car will be unlocked. Which typically means more power and responsive car but worse mileage. In return, emissions can be made worse if you tweak your car engine to run richer.

Slightly richer will be fine though. The extra emission is minimal and it will be legal. If your tuner is experienced, he should also be able to turn the CEL off — so this is not a big problem. Technically, you can tune your car to be less powerful in order to achieve better gas mileage. However, as a car enthusiast, I assume power is what you want… yes? In this article, I am only discussing tuning to get more power. That will not happen. Unless your tuner made a huge mistake or significantly skewed your configuration.

In this case, you need to get a better tuner. As long as the tuned car is still compliant with sound and emission laws, tuning a car is legal. Even better if the tuning is done by a certified tuner.

Tuning becomes illegal only if you go overboard with it. For example, tuning your car to be extremely rich — causing it to produce highly toxic exhaust gas.

I recommend consulting with the tuner and checking your local laws to be sure. Car dealer will know if your car has been tuned. One idea is to tune your car back into the stock settings before bringing it to the dealer. It depends entirely on your relationship with the dealer.

My recommendation: If your car is quite new and still has a warranty, I suggest you wait a little longer before you tune. You typically need sessions.

But it can be worth it if you are a true enthusiast who will enjoy the power or any custom configurations that you put in. It costs too much for no actual horsepower gain. Instead, I recommend installing aftermarket parts and then going for a tune — this is the most effective.

I suggest saving up your money and installing these parts below:.