Search results for "fitech"

It’s no secret that yanking a Gen. 3 or Gen. 4 Vortec truck engine out of the junkyard is the cheapest way to make 400+ horsepower. 5.3L engines start in […]

Fans of no-prep drag racing in the vicinity of northern Ohio won’t want to miss the 2018 edition of Super Summit, Summit Racing’s annual homage to all things internal combustion, […]

In only nine months, a single-cell zygote can grow into a viable human baby inside its mother’s womb. Here’s hoping the same time span was long enough for Uber to […]

Q: I have a 1976 Toyota FJ-40 with a 350 small block from a 1973 Camaro. The engine has been rebuilt and is stock internally. The heads have a fresh […]

Got questions? We’ve got the answers—Mondays when the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re taking on engine hesitation and the poor fuel economy that’s so […]

Q: What are the different types of electric relays? … A: An electric relay is a high amperage switch controlled with a small electrical input. Normally, the small input controls an electromagnetic […]

Tuning is rewarding when you want to do it, but aggravating when you have to do it. Today’s self-learning fuel injection systems give us the best of both worlds. The injection units […]

If you own a 1979-93 Mustang or Mustang GT, you understand the limitations of the Fox-body Mustang’s four-lug hubs. Four-lug underpinnings limit your choice of aftermarket wheels and certainly tire size. […]

Editor’s Note: This L9H engine upgrade guide is part of a series of LS engine upgrade guides assembled by a team of LS experts at Summit Racing that we are sharing at […]

The LR4 is a 4.8L iron block truck engine that was introduced in 1999. Along with the LM7 and LQ4, they were the first LS truck engines. The LR4 was available […]