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Honda, Chevy reveal low-drag speedway aero for Indy 500

As the two automakers currently participating in the IndyCar Series, both Chevy and Honda were invited this year not only to provide engines to the teams on the starting grid, but to develop their own aerodynamics packages as well. Both revealed their designs for the road-course races a few months ago, but with the Indy 500 approaching at break-neck speed, they've now unleashed their aero approaches for speedways. Both are based on the Dallara DW12 chassis introduced to the series a couple of years ago, but sacrifice some of their downforce at the altar of speed. And you can tell as much from looking at them: both Honda (above) and Chevy (below) have streamlined their designs, with single-plane front wings, lower-profile rear wings and fewer winglets on the body and around the wheels in between. The idea is to allow the cars to reach higher top speeds with less drag, while offering the necessary amount of downforce for the banked turns. With the four opening road-course rounds complete, teams using either automaker's equipment will keep the existing aero kits on their cars for the Grand Prix of Indianapolis on the infield course next week, then switch to the speedway package for the Indianapolis 500 later this month. Then it'll be back and forth for the rest of the season as the circus switches between road courses and speedways. Honda Unveils 2015 IndyCar Super Speedway Aero Kit Apr 30, 2015 - SPEEDWAY, Indiana - To be used at the Indianapolis 500 - Manufacturer seeking 11th Indianapolis 500 victory since 2004 - First public running to take place Sunday at Indianapolis Honda today debuted the "Super Speedway" aero kit of aerodynamic upgrades and components its teams will use at this year's 99th running of the Indianapolis 500. The Honda Super Speedway Aero Kit, produced by Honda Performance Development, Honda's racing arm in North America, includes a variety of individual aerodynamic components fitted to the existing Honda-powered Dallara Indy car chassis. All are intended to give Honda's six Indy car teams – encompassing a potential 17 '500' entrants - the ability to maximize performance at the 2.5-mile Indianapolis Motor Speedway oval and other large ovals ( over one mile in length) on the 2015 Verizon IndyCar Series schedule. "We're excited to unveil our Super Speedway aero kit, the newest element in this era of enhanced manufacturer competition in the Verizon IndyCar Series," said Art St. Cyr, president of HPD.

2.0-liter turbo four reportedly returning to Chevrolet Equinox line-up for 2022

Chevrolet's popular Equinox crossover will enter the 2021 model year with comprehensive updates and a turbocharged, 1.5-liter four-cylinder as its only available engine. The 2.0-liter turbo four offered through 2020 is allegedly leaving the line-up, but it will be replaced for 2022 with a newer engine that produces slightly less power while returning better fuel economy, according to a recent report. Called LSY internally, the new 2.0-liter turbo four already powers the Cadillac XT4, among other models in the General Motors portfolio. Enthusiast website GM Authority learned it will deliver 237 horsepower at 5,000 rpm and 258 pound-feet of torque from 1,500 to 4,000 rpm. For context, the 2.0-liter available through 2020 (known as LTG) made 252 horses and 260 pound-feet of twist, and the 1.5-liter posts figures of 170 and 203, respectively. As a trade-off for the slight drop in horsepower and torque, the LSY is smoother, quieter and cleaner than the LTG it replaces. Transmission options remain unconfirmed, but the four-cylinder will likely shift through a nine-speed automatic. Front-wheel drive will come standard, and all-wheel drive will be offered at an extra cost. Chevrolet hasn't commented on the report; it hasn't even confirmed the Equinox is losing the LTG engine for 2021. If the rumor is accurate, details about the 2022 Equinox should be released during the first half of 2021. GM Authority added the GMC Terrain, which is closely related to the Equinox, will receive the new engine for 2022 as well. Both should have gotten it for 2021, but the on-going global pandemic delayed its launch. Related Video:

GM will recall 3.5 million pickups and SUVs to fix brake issue

WASHINGTON — General Motors Co is recalling 3.46 million U.S. pickup trucks and SUVs to address a vacuum pump issue that could make braking more difficult and increase the risk of a crash. The recall, which covers 2014-2018 model year vehicles, including some Cadillac Escalade, Chevrolet Silverado, Chevrolet Tahoe, GMC Sierra, Chevrolet Suburban and GMC Yukon vehicles, was triggered because the amount of vacuum created by the vacuum pump may decrease over time, GM told the National Highway Traffic Safety Administration (NHTSA) in documents posted Wednesday. NHTSA opened a preliminary investigation into the issue in November 2018, and said it had reports of 9 crashes and two injuries related to the issue. It provided GM in July with additional field reports that prompted the automaker to open an investigation. The company did not immediately say on Wednesday how many injuries or crashes are linked to the issue but said it could impact braking in "rare circumstances." GM said dealers will reprogram the Electronic Brake Control Module with a new calibration that will improve how the system utilizes the hydraulic brake boost assist function when vacuum assist is depleted. GM said the vacuum assist pump, which is lubricated with engine oil that flows into the pump through a filter screen, can in some cases lose effectiveness over time, as debris such as oil sludge can accumulate on the filter screen. GM told NHTSA that prior model years used a different brake assist system design, and vehicles manufactured after 2018 were not equipped with the affected pump design. Recalls Chevrolet GM GMC