Z Sport, Part 3: Subaru WRX Engine Modifications And Dyno Testing
In this third article of a series, Larry Bailly continues to detail the performance mods done on a 2005 Subaru WRX project car, the daily driver of Charles Damewood, who manages the service department and coordinates all aspects of Z Sport’s operations. Read on to learn how Z Sport “punches up” performance!
Tech Feature: Hemisphere Exploration – Journey to the Center of the 5.7L Hemi
The 5.7L HEMI Magnum V8, which made its debut in 2003 in Dodge Ram 2500/3500 series trucks, was quite an improvement over the older 5.9L V8 it replaced. The engine was 56 lbs. lighter, produced 41% more horsepower and 12% more torque than the previous motor. Better yet, it also delivered 8-10% better fuel economy.
Directions: E15 — Helping or Hurting American Drivers?
At Issue: E15 fuel blends could be available by March or April of 2011, assuming the EPA makes two approvals for use of E15 in 2001 cars and newer models by the end of the year.
Tech Feature: The DeLorean – Back From the Past
The DeLorean was often referred to as “the ethical sports car,” leading to the relatively small V6 engine and stainless-over-fiberglass construction with good fuel economy and long life in mind.
Tech Feature: General Motor’s Ecotec 2.0L Turbo Engine
General Motors introduced its powerful Ecotec 2.0L direct
Independent Research Shows E15 Poses Minimal Risk to Older Vehicles
The conclusion of the Ricardo study is that the adoption of E15 as the blend limit for standard US pump grades of gasoline should not adversely affect vehicles manufactured between 1994 and 2000.
Tech Feature: Sports Compacts – Performing in a ‘Maturing’ Market
What started out in the 1990s as an affordable way for kids to bang around with cars that were often handed down from their parents or siblings, later grew into a fledgling market all its own.
Tech Tip: BMW Check Engine Light On and Vehicle Running Rough Due to Airflow Meter
If a customer complains of a check engine light on and a vehicle running rough, it may be due to problems with the airflow meter and wiring.
Tech Update: Gaskets, Seals, Sealants and Fasteners
Some gaskets can go the distance, while others can not. The factors that typically cause a gasket to fail include age, heat, thermal expansion, abrasion, pressure, vibration, corrosion, material breakdown or poor design.
Tech Feature: Taking it to the Streets
We have all seen in our industry that a “streetable” racing engine or a “raceable” street engine appeals to a broad spectrum of potential engine buyers because of its flexibility. Yet, everyday street driving is not the same thing as serious drag racing.
Racing Report: NASCAR Belt Technology is ‘On Track’
Goodyear engineer Mike Gregg has played a part of the four-straight championship trophies the No. 48 team has hoisted — not to mention the great racing all NASCAR teams entertain fans with every weekend.
Tech Feature: Valve Timing Terror Tales
While a lot has been written about timing belt replacement intervals, not a lot has been written about diagnosing timing belt and valve timing-related driveability complaints. In this article, Gary Goms reports that he is beginning to see more driveability problems caused by faulty valve timing.