Here's Why You Don't Need Your Exhaust To Have More Back Pressure

Exhaust

Contrary to popular belief.

Unless you’re into dumpster diving, waste is not really a fun concept to think about for the vast majority of the population. Of course that’s only because the vast majority of the population isn’t made up of gearheads because to us, exhaust systems are a fascinating world of their own. Especially when it regards making a car either more powerful or louder. The only problem is that like many things in life, there are many misconceptions about the exhaust system. Especially when it comes to back pressure.

Put simply, back pressure is pressure headed back into the exhaust and takes place when the pressure of the surrounding atmosphere is greater than that of the exhaust. Simple logic will tell you that excessive back pressure will hinder the exhaust system’s performance by impending on the exhaust flow.

You Might Also Like
Weird, Wonderful, Wacky Pickup Trucks You're Going To Love Or Hate
Weird, Wonderful, Wacky Pickup Trucks You're Going To Love Or Hate
10 Best V8 Engines Of All Time
10 Best V8 Engines Of All Time

That means lost horsepower (imagine trying to breathe quickly while sprinting and having a hard time exhaling). The problem is that regulating optimal amounts of back pressure is not easy. Install a restrictive exhaust and back pressure is increased, though such systems also have the effect of increasing the velocity of the exhaust, On the other hand a wider exhaust will reduce back pressure but slow the flow of exhaust gas, meaning it can’t escape into the atmosphere as fast. As always, Jason Fenske of Engineering Explained takes the time to explain these concepts in terms we can all understand so that you can school your less enlightened gearhead friends.

Ford Mustang Splits In Half In Illegal Street Race

This is the best example of dumb luck you'll ever see.

The World's Weirdest Wheel Designs

Sometimes the most basic customization tool goes drastically wrong...

Jaguar XE 300 Sport And XE SV Project 8 Create Modern Art

Two vastly different sports sedans that share a common thread.

LEAKED: Ford Mustang Shelby GT500 Revealed At Private Event

This is the first pic we have seen of the supercharged range-topper

All-New Revolutionary Mazda3 Teased Ahead Of LA Reveal

Along with its game-changing sparkless ignition engine.

WatchThe Extraordinary Nissan GT-R50 Being Built By Hand

It’s all about bending sheet metal the old-fashioned way.

Here's How Aerodynamics Make The Lamborghini Aventador SVJ So Much Faster

Take a behind the scenes look at this amazing system.

Fake Lamborghini Murcielago SV Reverse-Engineered By Iran

The Chinese couldn’t have done it better.

Hennessey Trackhawk Is World's Quickest SUV

That's what a thousand horsepower will do for ya.

What's Hot

Related Cars

Starting MSRP
$417,650

Related Reviews