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Diagnosing Acura RDX Turbo System Problems

The wastegate prevents the turbo from exceeding maximum boost pressure.

Nissan Variable Compression: The Engine That Will Change Performance & Service

The new Nissan 2.0 L VC-Turbo (Variable Compression Turbo) offers similar performance figures to the 24-year-old 3.5 L V6 that it replaces, while providing 4-cylinder fuel economy. The first vehicle to receive the engine in the Nissan lineup will be the 2019 Altima SR. While it might be a few years before this engine is in your bays, the preparation and training needs to start now, not when you are stumped with a problem.

Diagnosing Acura RDX Turbo System Problems

The 2007-2012 Acura RDX was Honda’s first production vehicle in North America with a turbocharger. The company took the proven K-series engine and lowered the compression ratio from 10:1 to 8:1, and added a turbocharger with the associated plumbing. But, it is a lot more complicated when it comes to managing the boost.

Component Connection: The Mod Squad – Boosting Engine Power With Turbochargers And Superchargers

The power that a naturally aspirated engine can make is limited by its displacement and how efficiently you can make it breathe with cylinder head, camshaft and induction system modifications. The engine can only inhale so much air because the atmospheric force that’s pushing air into the engine is only 14.7 lbs. per square inch at sea level. To make matters worse, atmospheric pressure decreases with elevation. Air density also decreases with temperature because hot air is thinner than cold air.

Tech Feature: General Motor’s Ecotec 2.0L Turbo Engine

General Motors introduced its powerful Ecotec 2.0L direct

Carbon Deposits and Direct Injection Engines

The primary cause of these problems is that fuel and added detergents are not hitting the back of the intake valves.

Carbon Deposit Q&A

Follow along to learn more about carbon deposits.

Spark Plug Fouling

Understanding why spark plugs get dirty.

VarioCam: Understanding Porsche’s VVT Technology

Originally developed for the 2001 Porsche 911 Turbo, VarioCam changes the valve timing to increase power & reduce emissions.

No Replacement For Displacement? Mercedes Might Disagree

There are rumors that the M177 may be the last of the V8s for the company.