MotorTrend

Snow Performance Water-Methanol Test

Cold air is good air, but can chemical intercooling with water-methanol injection take the place of a conventional intercooler? We put it to the test to find out.

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After many seasons of hard racing an LS7 is tired and ready for rebuild. Here's what we found on the initial tear down.

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Tearing down a worn LS7 track engine in preparation for a rebuild

A look at the ultra-cool track-ready 1967 Chevelle built by HRCC for the 2017 SEMA show and ultimately the track! Packed with a ton of performance, including an blown LSA crate engine, this Chevy has just the right mix of old and new.

0:59

HRCC 1967 Pro-Touring Chevelle

One of the most common valvetrain upgrades for pushrod-style engines is roller rocker arms, which are often said to increase horsepower through reducing friction. But is it true? You’ll find out on this episode of Engine Masters presented by AMSOIL, as we use a 7,000-rpm, small-block Chevy to test stock-type stamped-steel rockers, roller-tip rockers, full rollers, and full rollers with a ratio of 1.6:1 rather than the stock 1.5:1. We’ll reveal the facts and myths around the horsepower claims and discuss other things you need to consider before purchasing any rocker arms for performance engines of any kind.

19:57

Do Roller Rocker Arms Add Horsepower?

How does the $340,000 dollar, Cadillac Celestiq drive? MotorTrend editor Alex Stoklosa gets behind the wheel to find out.

11:18

Finding Out How Well the $340,000, 2025 Cadillac Celestiq Drives

A look at the fastest car at our 2017 Super Chevy Muscle Car Challenge. This vintage Camaro bested our baseline 2017 Camaro in every single test showing that the aftermarket can add a lot of performance to our classic Chevys.

2:53

1969 Camaro from Detroit Speed for the Super Chevy Muscle Car Challenge

1:29

2018 Tri-Five Nationals Top 25

0:58

2018 Tri-Five Nationals Giveaway 1955 Chevy

2:09

2018 Tri Five Nationals Drag Racing

Chevy's new Silverado EV electric pickup packs tons of technology and a massive battery rated for 440 miles. We take the Silverado EV for a first drive to see if it's good enough to put range concerns to rest.

4:06

2024 Chevrolet Silverado EV RST First Drive: Has EV Range Been Solved?

A look at what went on for day four of our Jegs Week To Wicked 1987 Monte Carlo SS Aerocoupe build project. As we near the end we have tackle all the small things that have to be done so our G-body can hit the road on Friday.

5:56

Jegs Week To Wicked 1987 Monte Carlo SS Aerocoupe Day Four Wrap Up