Discovery Turbo TV

Pop superstar Teyana Taylor's 3-wheel Polaris Slingshot is customized to turn heads on the streets of Manhattan. Alex does a full-custom Jeep Wrangler for hot New York Yankees catcher Gary Sanchez.

Alex customizes a Polaris General for music producer Akon, all to benefit a unique solar power initiative in Africa; Alex gives a Range Rover SUV a tough, off-road look.

Alex takes on a huge challenge when NBA star Iman Shumpert wants to restore his first car, a broken-down 1998 Chevy Blazer; an anonymous client wants to transform a new Rolls-Royce Dawn into a one-of-a-kind vehicle.

Singer Marc Anthony asks Alex to create a custom limo van from a bare-bones Mercedes-Benz Metris; the team drops a Hemi engine into a Jeep Wrangler.

The crew tests the effects of running long vs. short rods on otherwise identical engines; they'll find out if long rods make more torque, if shorter rods' faster swipe makes a difference, or if rod length doesn't actually matter.

The guys find out which cheap carburetors produce the most expensive results; they pick a fight among remanufactured offerings from Edelbrock, Summit and Demon to see which will pump the most power into their 383 Chevrolet.

The guys flip things upside down to find out how much power might be left in the oil pan; a number of factors play a part in minimizing turbulence around the crank, but an $1,100 solution may not be worth the cost.

The guys try to shed light on whether iron or aluminum heads will deliver more power; they'll look at weight savings and heat retention's effect on cylinder pressure.

A camshaft is causing issues, so the crew explores how changes to cam timing can help tune a power curve for high-end performance or low-end power.

The guys experiment with lash adjustments in an effort to unleash some serious ponies; specific engine and cam combos can benefit from loosening or tightening, leading to more power and better performance.

The guys determine whether a dual 2.5-inch or a single 3.0-inch exhaust system has more power; they swap pipes on a run-of-the-mill 351 Ford, then they test turbo versus straight-through mufflers and Y-pipe versus a 90-degree merge.

The guys answer whether a carb spacer produces more power; the answer is yes, no, and maybe, depending on the engine.

The guys test the belief that a simple swap of the standard firing order can create more power in a 90-degree v-8; they do a 4/7 swap on a big 572 to see if there's more power to be had or if the theories are just that.

The guys take four of the most popular street-style, dual-plane intake manifolds on the market and strap them to the test mule; they reveal how much power the hood clearance issue costs on a Mustang.

The guys test the difference in power between gas and e85 on a 555 BBC.