What is speed density tuning?


Sharing is Caring


Speed Density is a tuning method where the ECU uses information based on manifold pressure and temperature using the MAP sensor and an added IAT sensor to calculate how much air is coming into the engine.

Can you tune a BMW M3?

The modified M3 has a reprogrammed ECU and nothing else. Wrench Studios was able to crack the M3’s ECU to tune it, wringing more power out the powertrain. It has no other modifications other than the ECU tune, which takes the stock output up to 600 hp (447 kW) and 516 pound-feet (700 Newton-meter) of torque.

How can I make my e46 M3 sound better?

YouTube video

What is Alpha N Tune?

Alpha-N is a tuning strategy that makes the file unique to that car and its modifications. The car must be tuned on the dyno to dial in your engine and get the most horsepower and torque. The standard ECU programming relies on sensors like the HFM to set its tuning.

How much does it cost to tune a M3?

RepairSmith offers upfront and competitive pricing. The average cost for BMW M3 Engine Tune-Up is $208.

Is the BMW S55 engine reliable?

S55 Engine Reliability After 6-years of on the road data, the S55 appears to be an extremely reliable motor. On pre-2016 engine models, the crank hub was complained to be a high-failure point, resulting in a “spun” crank hub.

What engine is in E46 M3?

The BMW M3 E46 Engine. Outstanding performance is provided by the typical BMW M Series 6-cylinder engine. The 3.2-litre S54B32 engine built on the legacy of its predecessor. Nevertheless, it was an almost entirely new development.

How much HP can you get out of a E46 M3?

The M3 makes two runs on the dyno โ€“ one in regular mode and one in Sport. The first attempt nets 284.89 hp (212.4 kW) at 7,250 rpm and 238.43 pound-feet (323.3 Newton-meters) at 4,500 rpm. In Sport mode, the BMW puts down 289.48 hp (215.9 kW) at 7,250 rpm and 240.78 lb-ft (326.5 Nm) at 4,530 rpm.

How fast can an E46 go?

Interestingly, it has an electronically governed max speed of 155 mph (250 kph), though, obviously, the example from the video reaches speeds well above that limit.

How fast is a supercharged M3?

According to G-Power, its higher displacement, supercharged M3 can hit 124 miles per hour (200 kilometers per hour) in 9.8 seconds and reach a top speed of 205 mph (330 kph).

What is Alpha N fuel injection?

In Alpha-N mode, the system uses Throttle Position to measure the load on the engine. It then uses the throttle position and RPM to identify a cell in a 3D table that fuels the engine at that specific Load and RPM.

What is a speed density engine?

Speed density systems do their work first by measuring the temperature of the inlet air and then the manifold pressure via a manifold air pressure sensor, or MAP sensor. They then calculate a density of air with which the ECU can calculate how much fuel it needs.

How much hp does a tune add?

For a general stock car (i.e. no additional performance parts), a tune will boost your hp by 10 to 15 percent. What’s more is that if you’ve added performance parts to your vehicle such as cold air intake, exhaust, or turbo, the hp boost you gain from tuning may be as high as 50 percent more!

Can I tune my own car?

Conclusion. Tuning your car is one of the best ways to enhance the engine performance that you can do by yourself. There are certain tools and software required to perform this task but before using them you need to make sure that you have sufficient knowledge to finely tune your car otherwise you can damage it as well …

Is it good to tune your car?

ECU tuning does not harm your car’s engine if tuned properly. A good tuning can improve your car’s fuel economy but more often maintenance is needed. However, extreme tuning may affect the longevity of the engine. Personally, I have installed a bigger turbo to my Civic without ECU tuning first to test the difference.

How much HP can S55 handle?

The stock S55 fueling is able to keep up with 100% E85 up to roughly 600whp. Though, it is important to pay attention to AFR’s. You must also have the appropriate tune to keep up with the demanding fuel flow. A JB4 alone can handle up to 30% E85.

Whats better S55 or B58?

An S55 powered M3 can be found for roughly $10,000 more than a B58 car. The B58 is a great engine, but the S55 is better. Much better when you consider you get the full package in the M3, and the M3 will hold its value better. For that reason, the B58 scores the worst value rating.

What year M3 has S55?

In late 2013, BMW introduced the S55 on the F80 M3 and F82 M4, and the engine eventually made its way onto the F87 M2 Competition/CS.

What year E46 is best?

  • VANOS Oil Pump.
  • VANOS Solenoid.
  • Camshaft Sprocket Bolts.
  • Exhaust Camshaft Hub.

Why are E46 M3 so expensive?

The BMW E46 M3’s all-round excellence and increasing scarcity have led to high prices. The BMW E46 M3’s timelessness means finding one to call your own takes a considerable amount of money, especially for models in pristine condition. The magic of this car is that it can be many things to many drivers.

Why E46 M3 is the best?

It had a high-revving inline-6 engine, and lightweight construction, capturing the essence of the iconic BMW M3 E30. Since then, people considered the E46 generation as the greatest M car built due to its simplicity, appeal, and just overall design of it all.

Does BMW E46 M3 have Turbo?

Pushing out over 1000whp, this stunning turbocharged E46 M3 finished in Laguna Seca blue is a simply staggering performance build that’s on a whole other level. Feature from Performance BMW.

How much horsepower does a E46 have?

The BMW M3 E46 generation left the BMW factory in Regensburg with 333 hp and 268 lb-ft of torque.

How fast is a BMW M3?

From the factory, BMW electronically limits the top speed of its M3 sedan to 155 mph, or 180 mph if you option the M Driver’s Package.

How fast is the E92 M3?

It can sprint from standstill to 62 miles per hour (100 kilometers per hour) in 4.8 seconds, while its top speed was electronically limited to 155 mph (249 km/h). However, without the limiter, the E92 M3 is said to be capable of reaching speeds of up to 190 mph (306 km/h), albeit unconfirmed.

Craving More Content?

Carolina's BMW