Turbocharging Archives - Page 4 of 4 - UnderhoodService
Tech Feature: Northstar Supernova

Introduced in 1993, GM’s 4.6L 32-valve dual overhead cam all-aluminum V8 engine – housed in the Cadillac Allante, Eldorado and Seville STS – was considered a quantum leap forward for U.S. automakers. Initially rated at 295 horsepower, the Northstar V8 has grown over the years to an incredible 469 hp at 6,400 rpm (STS-V Supercharged Northstar engine).

Z Sport, Part 2: Powering Subaru WRX Engine & Chassis Upgrades

A few months back, I highlighted a project car being built by Z Sport. The car is now back together and running. Charles Damewood, the car’s owner and a principle at Z Sport, has been driving the car to break in the engine, and get an idea of what needs to be sorted out as far as engine management before doing a full on dynamometer test. As soon as fuel mapping and software issues are resolved, we will get full performance testing data and publish a follow up.

Tech Feature: Boosting Profits Through Turbocharger Services

A turbo’s basic purpose is to boost power, so when an otherwise healthy engine suddenly becomes anemic, it often (but not always) means turbo trouble.

Tech Feature: Engine Technology Gets a Boost

As a technician, you’ll need to understand how Ford’s EcoBoost turbocharged gasoline direct injection engine works, since the automaker plans to incorporate it in 90% of its new vehicles over the next three years.