650-Horse Kia? 800+ Horsepower from Hyundai? Yep–We Saw it at SEMA 2014!
LAS VEGAS, NV — What’s going on outside of Detroit? In addition to checking out the press conferences from the Big Three at SEMA, we also did a walk-by of […]
Ask Away! with Jeff Smith: Drivetrain Loss & Comparing Engine Horsepower vs. HP at the Wheels
I hear numbers thrown all over the place about the horsepower loss from flywheel power to rear wheel power. I’ve heard 10 percent up to 25 percent—which is a huge […]
Horsepower Wars $10K Drag Shootout No Prep Edition, Episode 4: We NEED Four Race Cars
The Horsepower Wars $10K Drag Shootout returns for a third go-around. In the $10K Drag Shootout, teams are given a vehicle, plus $10,000 to build the quickest drag car possible. Oh, […]
Working 4 to 5: How to Convert a 1979-93 Mustang Four-Lug to Five-Lug
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. […]
Custom Header Designs from Doug’s Headers
Way back in the dawn of hot rodding, exhaust headers were a make-your-own proposition. Through trial and error, you cut and welded pieces of tubing together to create headers for […]
Ask Away! with Jeff Smith: Building a Performance Intake Manifold for a 5.3L LS
I’ve heard there is a really good factory LS intake manifold out there for cathedral port intakes but the friend who mentioned it didn’t know anything more than that. He […]
Triangulated 4-Links: Make Your Stock Suspension Car Work
If you have a Fox-body or SN95 Mustang, a 1980s GM G-body (Grand National, Malibu, El Camino, etc.) or something like an early Chevelle or a GTO, it has a […]
Dyno Test: 120+ HP Gains and No Low-End Loss with Cam Swap on 6.2L LS Engine
Why were we so excited about swapping cams on the all-aluminum L92? Many reasons. The first was that we had previously run the Summit Stage 4 Pro LS cam (SUM-8711) […]
Monday Mailbag: Aluminum vs. Iron Cylinder Heads & S10 Upgrades
Got questions? We’ve got the answers—Mondays when the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re talking cylinder heads and Chevy S10 upgrades.. From: Gary Button […]
Top 10 Mustangs of All Time (#5): 1987 Mustang 5.0L
There certainly have been more powerful Mustangs. There have been better looking ones, too. But you can’t underplay the role of the 1987 Mustang 5.0L in getting Ford’s legendary pony […]