What does 1 step colder spark plugs mean?


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Why go “one step colder”? Running a “colder” heat range spark plug will reduce temperatures in the combustion chamber by wicking more heat into the cylinder head. This reduces feedback knock and fine knock learning when running gasoline tunes. Recommended on ALL 2.5 WRX/STI making over 280 whp.

How often should you change spark plugs N55?

In most modern BMWs, manufactured after 2010 with the N20 or N55 engines, it is required to change spark plugs every 60,000 miles. For BMWs with V8, V10, or N54 or N63 engines, 37000 miles are the threshold before getting new spark plugs.

What spark plugs does BMW recommend?

Bosch and NGK are original suppliers to BMW for spark plugs and the ignition system is set up to use these plugs.

What do I GAP my N55 spark plugs to?

Even so, with a heavily modified N55, you’ll likely have to replace the colder plugs every 15,000-20,000 miles. These plugs are best gapped to 0.020″ for optimal engine performance.

Should I replace ignition coils with spark plugs BMW?

While you’re replacing your ignition coils, we recommend inspecting and replacing your spark plugs at the same time.

How long do N55 Turbos last?

How long will a BMW N55 engine last? The BMW N55 motor should have no problem lasting over 150,000 miles, and some owners report getting over 250,000 miles out of their engines.

Does N55 need walnut blast?

N55 doesn’t require the same interval as N54 for Walnut Blasting. That being said 82-100K should be the optimal range to perform the first Walnut blast. This is just from experience, I know other cars can be different. N55 doesn’t require the same interval as N54 for Walnut Blasting.

Can I use NGK Spark Plugs in BMW?

YouTube video

What spark plugs are better NGK or Bosch?

There is no doubt that NGK spark plugs are great, yet Bosch ones also work decently at ignitability and combustion. The real difference lies in thermal transfer between electrodes and engine cylinders. Also, the double-electrode technology and durable materials are other advantages.

How do I know if my BMW needs new spark plugs?

  1. Slow or no start.
  2. Engine misfire.
  3. The engine is running rough.
  4. Rough idling.
  5. Poor acceleration.
  6. High fuel consumption.

How long does it take to change spark plugs in a BMW?

How long will it take to replace BMW N55 spark plugs? On a lot of cars and engines, it only takes a few minutes to replace your spark since so much has to come off the engine to get to the plugs on an N55, you can expect it to take you around 2 hours to complete this job.

How do you set the gap on a spark plug?

YouTube video

How long do BMW coils last?

Most BMW ignition coils last for more than 140,000 miles. If you frequently push your car’s performance, the lifespan of your coils can decrease significantly. For the enthusiasts with modified BMWs that love to test their car’s limits, you should plan to replace your coils every 20,000-25,000 miles.

How do I know if my BMW coil pack is bad?

  1. Poor Fuel Efficiency and Low Gas Mileage.
  2. Ignition Misfires and Stalling.
  3. A Struggle to Start.
  4. Overheating Engine.
  5. Engine Vibrations.
  6. Spark Plugs.

What are the symptoms of a failing coil pack?

  • Loss of Power. This is one of the first symptoms of ignition coil failure.
  • Check Engine Light On.
  • Poor Fuel Economy.
  • Backfiring.
  • Misfiring Engine.
  • Hard Starts and Stalling.
  • Spluttering and Coughing Sounds.
  • Jerking and Vibrating.

How much HP can N55 handle?

The N55 can handle around 550whp and 550wtq on the stock engine block and internals.

How much boost can N55 handle?

N55 Max Boost Stock Turbo Summary With a reliable twin-scroll turbo, the N55 is capable of making up to roughly 25-26psi. However, for reliability and longevity reasons, we recommend limiting boost to about 20-21psi. Much over 21psi pushes the turbo well outside its efficiency range for minimal performance gains.

How can I make my N55 faster?

  1. ECU Tuning. The engine control unit (ECU) is the brain of every modern engine.
  2. Cat-Back Exhaust.
  3. Downpipe.
  4. Intake.
  5. Intercooler.
  6. Charge Pipes.
  7. Oil Cooler.
  8. Oil Cooler Thermostat.

How much is a walnut blast N55?

What is the Cost of Walnut Shell Blasting? The Walnut Shell Blasting Service costs $250 and includes Replacement of the OEM BMW Intake Manifold Gaskets during the service. This price is for BMW N54 and N55 Engines.

How often should you walnut blast N55?

Carbon buildup on the BMW N54 engine (as well as N55 engine) can become severe over time, almost completely closing off the intake tracts and valves. BMW recommends intake valve cleaning in the form of walnut blasting roughly every 30,000 to 50,000 miles.

Can you do a walnut blasting yourself?

Performing a Walnut Blasting De-Carbon service really isn’t that hard, and with the proper tools and training, it can easily be done yourself.

How often should you change B58 spark plugs?

We recommend the following B58 spark plug replacement intervals: Stock: 40,000 – 50,000 miles. Modded: 15,000 – 30,000 miles.

What are the best spark plugs for BMW 328i?

  • Autolite Single Platinum Spark Plug. from $3.99.
  • Autolite Iridium Iridium XP Spark Plug. from $9.29.
  • Autolite Iridium Iridium XP Spark Plug. from $9.29.

How many spark plugs does a B58 have?

There are 6 coil packs (6 spark plugs) on your B58.

Is Denso or NGK better?

For this reason, Denso plugs won’t last longer than NGK units but they will be better at producing powerful sparks. On the other hand, NGK plugs will be a standard replacement for their platinum alternatives. They require less maintenance and provide a more stable and consistent performance than a Denso.

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