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Performance

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How Air Filters Affect Horsepower
Air filters work to clean the air entering your engine’s combustion chamber. A good supply of air and oxygen is very essential so that the engine can burn fuel efficiently and give you the horsepower...
What's the Difference Between Standard and Performance Air Filters?
Your air filter works to filter the air reaching the engine during combustion and protects it from dust, debris, dirt and bugs. From time to time, when the air filter gets clogged, you...
5 Essential Things to Know About High-Performance Vehicles
There’s just something enticing about sitting in a high-performance vehicle that makes the heart start pumping before you ever hit the gas. However, there are a few things you should know about them before you sign on the...
How to Buy a Good Quality Tachometer
Tachometers are used to let the driver know when to shift gears in a manual transmission as well as giving additional information about traction or slippage; as well as giving a quick overview...
All About Oversized Wheels and Tires
You love your vehicle. It reflects your personality and performs its intended function. It would be great if it had a couple extra inches of ground clearance, though, and it would be nice...
What Are Run-Flat Tires?
Run-Flat tires, as their name implies, are able to support the weight of a vehicle with no air in them at all. This protects the rims of a vehicle and makes the repair of...
How to Choose What Type of Car You Would Like to Build
Car shows are packed with vehicles that have been customized to one degree or another. Many custom cars have everything from custom paint jobs to engine modifications, from...
How to Install an Aftermarket Air Intake
Trying to squeeze more performance out of your car can be an expensive and serious undertaking. Some modifications can be simple, while others can require that...
How to Make Your Car Perform Better
Car performance includes horsepower, handling, and efficiency. Upgrade your engine, exhaust, and electronics to improve the performance of your car.
How is Car Performance Defined?
There are a lot of us who want a little red Corvette in our lives. It’s fast, handles well, and let’s face it, a high performance car makes you look good on...
What to Look For in a Performance Driving School
Performance driving schools teach driving techniques used by race car drivers, such as braking before turns and preventing fishtailing.
How to Maintain a Car at 50,000 Miles
Maintenance at the 50000 mile mark is essential. These services include inspection of the exhaust, suspension, fuel caps and filter, and tire changes.
How to Improve Automatic Transmission Performance and Reliability
The transmission on automatic cars is improved by changing driving habits, maintaining engine performance, and replacing transmission oil and filter.
How to Buy a Good Quality Muffler
Having a good exhaust system and muffler can help you lower your engine temperature and tweak your power levels, and purchasing a new performance exhaust system is one of the easiest and least...
How to Buy a Good Quality Performance Air Filter
Unlike cheaper paper air filters, performance filters are made of either foam or cloth (typically cotton). They’re more expensive, but they also last longer, in fact, depending upon the type and use...
What Is Engine Displacement?
Engine displacement is an important measurement for a vehicle. It is often used to determine how a vehicle may be taxed because it directly correlates to fuel efficiency. While displacement is not the same...

Related questions

Question
Speed vs. Torque
If you compare the concept to some small remote control cars and trucks out there, they have a two speed rear ends to have great low speed torque and use shift gears to have great high speeds. When it comes...
Question
Power capabilities
Hi there. The engine will not start to break down or lose power at that point. The factory engine does not make that much power on its own so I have to assume you are talking about aftermarket power modifications....
Question
I have a MB WDB2011281F343389-0 and I know it: It would be advantageous to place an intercooler and how to get a design for this?
Admittedly, the 190D is not a big performer, so it's understandable that you would want to do something to improve the power, but I don't think there is much out there for that car. If you are determined, however, there...
Question
I am looking to make a "sports" , "dub" car with alot of power.
Taking on a project such as this takes lots of time, even for the most experienced mechanic. You will be re-engineering your car and this will require you to learn a lot and make a lot of decisions. There is...
Question
Will a after market performance chip increase my horse power? Will it pass smog?
If you live in California or any jurisdiction that regulates these aftermarket products, the first thing to check is whether the California Air Resources Board (CARB) has "registered" or "approved" the product. If no approval exists, particularly in California, that...
Question
Performance Restricted Warning and Check Engine Light - 2004 Jaguar XK8
Hello. The engine knock sensor is retarding the ignition timing to match what the lower octane fuel can support in terms of “timing advance.” There is nothing to worry about. The engine computer is just operating the engine so as...
Question
More power
Hello there, thank you for asking about your 2005 Ford Ranger. This is not an engine size or type used in our American version of the truck and I can only recommend having the intake system opened up with a...
Question
Under load on the engine we already checked the mass sensor and replaced map sensor what should i I look for now I unplugged the m
Hello. From what you describe it would appear that you are experiencing some sort of engine performance issues. Perhaps misfires, or stalling. If you changed the MAP and MAF sensors, and the issue has persisted I would then look into...
Question
Performance issues when driving and idling, RPM dropping abruptly
The symptoms you are describing are almost always caused by a bad catalytic converter. When this fails it clogs the exhaust, which causes these problems to occur. Do a back pressure test on the exhaust first. If that is fine...
Question
Performance exhaust recommendation for a 2015 Jeep Grand Cherokee
Hello. The type of exhaust that you will use depends greatly on what kind of sound that you want to achieve and if you are going to do it yourself or if you are going to have an exhaust shop...
Question
Outside of an engine rebuild, what can I do to get high-end horsepower rather than the low-end torque inherent with american cars?
Hello. Due to the design of the engine, there's not much that can be done, aside from completely rebuilding the engine, to achieve high rpm power. Typically V layout engines are designed to provide low end torque and a smooth...
Question
Adding air intake
One of the best brands for performance intakes would be K+N. These intakes, however, make very minimal difference to a four cylinder vehicle. These engines have been designed to produce as much power as possible due to the fact that...
Question
Low performance
Hi there, thanks for writing in. I'd be happy to offer my insight. I would recommend checking the EGR valve and EVP sensor. The EVP sensor will tell the solenoid to open and send vacuum to the EGR valve. Right...
Question
Sometimes my car runs loud from the front of the engine
From what you describe it would appear that an exhaust leak may be affecting your engine's performance. If the leak appears to come and go, then the first thing I would do is look at the vehicle's EGR valve and...
Question
Engine performance - 1997 Nissan Maxima
If the engine is running as poorly as you describe, it will actually be cheaper to pay the diagnostic fee so that the correct repair can be made rather than to continue to waste fuel. Obviously, a poorly running engine...
Question
Turbo blow off valve
Hello. The "blow-off-valve" or BOV, is a pressure-release valve designed to prevent over-pressurization of the engine, not the turbocharger itself. While hearing some of the sounds a turbo-charged engine makes while running through the gears is a most pleasant experience,...
Question
Packing power. Looking to add more off-road performance.
If you want to add some more power easily to your vehicle I would recommend an intake system or an exhaust system or both. The intake system and the exhaust system are two of the easiest ways to add power...
Question
Question about acceleration improvement.
There are zero options to "improve" the acceleration of the vehicle very simply because if such "options" actually existed Toyota would have already implemented them on the assembly line. That is who wouldn't want better acceleration? Toyota selected and tuned...
Question
The car idles very nicely. When I press the gas pedal it does not pick up speed, rather it sounds like it is dying for air.
From what you describe it would appear that your vehicle is experiencing some sort of engine performance issue. Hesitation when put into gear can be caused by a wide variety of things. Possible causes can range from issues with the...
Question
What kind of modification/performance can I do to my car?
Hello - the best way to keep your Altima running like new is "attentive maintenance". Keep fluids (oil, transmission fluid, coolant) topped off and changed at recommended intervals. If your timing chain and associated components (tensioner, idler, chain guides, etc.)...

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