IndyCar Aerodynamic Body Kits Revealed Side-By-Side

Verizon IndyCar Champion Will Power, tests the Dallara/Chevrolet/Penske aerodynamics body elements on the track at Circuit of the Americas near Austin, Texas. Image Credit: IndyCar

IndyCar Aerodynamic Body Kits Revealed Side-By-Side (kinda')

The evening of Monday, March 10, 2015 saw the final reveal of the aerodynamics body panels (Front Wing, Sidepods, Rear Wing) for the beginning of the third season of the Dallara DW12 chassis.

Chevrolet introduced its road course/street course and short oval design Feb. 17. The much-anticipated unveiling of the Honda aero kit took place Monday evening at a reception attended by principals from Honda Performance Development, American Honda and IndyCar. Defending Indianapolis 500 winner Ryan Hunter-Reay, who drove for a bulk of the on-track development, joined Honda executives in showcasing the base road/street course and short oval aero kit.

Possibly the most accomplished pilot using a Honda engine for 2015 Verizon IndyCar Season, 2014 Indy 500 winner and 2012 IndyCar Champion (using Chevy-power) Ryan Hunter-Reay, had the aerodynamics body work applied to his Andretti Autosport DHL Dallara DW12 for the Honda Performance Development reveal. Image Credit: Jeff Olsen (2015)

Honda Launch Video HERE >>>

Chevrolet and Honda, the current engine suppliers to the Verizon IndyCar Series (America's top professional open wheel chassis motorsports racing series), under the rules laid out for 2015 are able to modify the original body work of the Dallara DW12 to enhance the racing platform as it relates to airflow and give, potentially, an additional advantage to the teams that use their engines. The previous two years that the Dallara DW12 was on the track, all body parts were exactly the same as manufactured by Dallara from the factory for all teams (Honda or Chevy).

The reveal timing all seems a little delayed in relation to generally understood timing used to build fan interest. One wonders how fans, who support the series, are able to analyze and absorb the subtle aero approaches each manufacturer has adopted given that the Firestone Grand Prix of St. Petersburg, will be run in just about 3 weeks, on March 29, which marks the inaugural 2015 competition between the manufacturers' body kits. The speedway aero kit components are scheduled to be delivered to teams by April 1.

Below are full chassis images originally supplied by IndyCar from the manufacturers. The larger hi-res images were cropped in order to bring a visual focus to the three main areas of where aerodynamic body panel manipulation takes place on the Dallara DW12 - the Front Wing, Sidepods, and Rear Wing body parts - for comparison.

First, Chevy supplied the initial image that shows the fluid dynamics effect of their developed approach. The way the lines are drawn, it leads one to believe that the turbulent airflow coming from the back of the chassis has a strong upward motion soon after leaving the rear wing of the chassis.

This fluid dynamics motion is called 'Mushroom Busting' (first coined by Swift Engineering during the Iconic Development Process) which moves the trailing turbulence, that forms in the shape of a mushroom cap, out of the way of the race car behind allowing for stability in racing and possible overtaking.

Frontview Detail Comparison

Chevy Frontview Fluid Dynamics Detail - Image Credit: IndyCar

Honda Frontview Detail - Image Credit: IndyCar

This close-up view comparison has one potentially questioning whether Honda wishes to continue the same 'Mushroom Busting' competitive agenda, explored and - EXPLAINED HERE.

The Chevy front end view seems to have less parts to get in the way of the fluid nature of air whereas the Honda front end has many more elements that appear to be aiding in the dropping of the turbulence mushroom so that it would act as an impediment to any car trailing the Honda-powered chassis.

Front Wing Detail Comparison

Chevy Front Wing Detail - Image Credit: IndyCar

Honda Front Wing Detail - Image Credit: IndyCar

This close-up view comparison has one potentially questioning whither Honda wishes to continue the same 'Mushroom Busting' competitive agenda - EXPLAINED HERE.

The Chevy front end & front wing views both seem to have less parts to get in the way of the fluid nature of air whereas the Honda front end clearly has more elements channeling and funneling the air.

Sidepod Detail Comparison

Chevy Sidepod Detail - Image Credit: IndyCar

Honda Sidepod Detail - Image Credit: IndyCar

The sidepods housed the radiators in the original version of the DW12 so it is assumed the same function of the airflow through the housing performs the same benefit of cooling the engine.

Again, the Chevy sidepod has fewer elements and an addition of an airflow pass through outport just in front of the rear tire. Chevy also supplied a component identification terminology plate which describes the flying wing on top of the sidepod as an 'upper flick' and the element in the middle of the back of the sidepod (main flick) as a 'wheel wedge' which looks a little like a shark fin placed on the pod.

No component identification terminology plate was available from Honda/IndyCar so one is left to guess. The most interesting characteristic seems to be the integral nature of the sidepod without many add-ons or outports carving up the side, visually, and hanging above, leaving an uncluttered profile.

Rear Wing Detail Comparison

Chevy Rear Wing Detail - Image Credit: IndyCar

Honda Rear Wing Detail - Image Credit: IndyCar

For the Chevy rear wing, we almost instantly see louvers on either side of the main central fences or end plates. The louvers allow air flow to move from the central wing section defined by the fences over to the airflow on either side of the central wing.

The Honda aero kit features an added fin along the backbone of the engine cover along with, again, more parts that appear to most observers to aid in the dropping the strength of the upward movement of the turbulent air mushroom cap ... but then, who really knows without the developmental CAD/CAM information and testing statistics. One might say that the Honda aero kit looks less than ... iconic. More parts placed at the corners of the racing platform also equal more Yellow Flag track litter.

As an example that aids understanding in the philosophy that less parts that impede the flow of air is better, the new Nissan GT-R LM NISMO LMP1 employs the use of very large, designed-in airflow ducts where nothing invades the space of the duct.

This excerpted and edited from Racer -

Inside the Nissan GT-R LM NISMO LMP1 program
By Marshall Pruett - Feb. 1, 2015

Designers spend thousands of hours coming up with the best way to make aerodynamic downforce while minimizing drag, and drag comes from interrupting the air.

An LMP1-H punching through the air at 200mph is one giant exercise in disturbance, yet with Bowlby’s through-flow system, he’s found a brilliant method to work peacefully with the air as it envelops the Nissan via huge rectangular airflow channels that start at the rear of the splitter, wrap around the cockpit, and continue to the tail end of the GT-R LM NISMO LMP1. In practical terms, it’s the difference between the hull of an oil tanker making a huge wake and the razor-thin interruption made by an America’s Cup yacht.
[Reference Here]

One thing for sure, only racing on the track will let fan, team, and driver alike really know for sure.

If one hears about difficulty in passing a Team Honda car over the ease at passing a Team Chevy car just know that you heard the first speculation written about >>> HERE!

... notes from The EDJE

An American Open Wheel Ladder Series 2013 Season Yearbook

Book Cover Design - The Ladder 2013 Yearbook: Lights - Pro Mazda - USF2000. Image Credit: Ron Bijlsma and Tony DiZinno (2013)

An American Open Wheel Ladder Series 2013 Season Yearbook

What happens when one takes two very intense and busy motorsports Documentarians, put them out to engage and relate to all of the effort that goes into the three open wheel racing series that hold their seasons in North America, have them take all of their digital assets and arrange them into one reference resource?

What's created is a colorful, page turning book that goes by the title "The Ladder 2013 Yearbook: Lights - Pro Mazda - USF2000" with the tagline, Capturing the next generation of American open wheel talent, produced by Ron Bijlsma and Tony DiZinno.

In this recap, Ron and Tony look at the Firestone Indy Lights Series, Pro Mazda Championship Presented by Cooper Tires and the USF2000 National Championship Presented by Cooper Tires/Powered by Mazda seasons. The three divisions are all part of the Mazda Road to Indy ladder, where graduates from all three series have eventually gone on to race in the IndyCar Series, the top level of open wheel racing series in North America, or continue driving in other top level motorsports series.

In 300-plus pages, through Ron Bijlsma’s captivating photography and through Tony DiZinno's captivating words, the Ladder 2013 Yearbook attempts to tell the stories of each race weekend, the people who made their name and impact on the field, and produced starring roles.

Page Design - Teams & Drivers - 1. Image Credit: Ron Bijlsma and Tony DiZinno (2013)

In 2008, a similar effort was undertaken as a documentary by the title of "Driven To Race" by Cargo Productions (2010). Jeff Krueger and Brian Spillane of Cargo Productions were able to edit down 150 hours of footage shot across the United States and Canada and produce a still available feature-length documentary that followed only eight ambitious, young male and female drivers from around the world as they competed for the one thing that will move them up the ladder to a career in professional racing. The film focused, however, on only one of the established ladder series that was known then as Star Mazda Series ... the modern day Pro Mazda Series.

The Ladder 2013 Yearbook: Lights - Pro Mazda - USF2000, however, is much more expansive. As a book, one can refer to it on a whim, at random times, and can serve as an invaluable resource that provides unmatched, comprehensive coverage on the entire 2013 season of three open wheel racing series.

Page Design - Series Round Text & Results - 2. Image Credit: Ron Bijlsma and Tony DiZinno (2013)

Between March and October 2013, Ron and Tony traveled around the U.S. and Canada to a wide variety of circuits. Ovals such as the historic Indianapolis Motor Speedway and Milwaukee Mile were joined by classic road courses such as Sebring International Raceway and the Mid-Ohio Sports Car Course, the brand, spanking new Circuit of the Americas in Austin and diverse street circuits in St. Petersburg, Long Beach, Toronto, Baltimore and more.

Through this backdrop and through the three ladder series, Ron Bijlsma and Tony DiZinno were able to capture a season’s memorable moments, and have this effort serve as a keepsake for all participants - drivers, teams, media, sponsors and fans alike - by providing a detailed look at the young talent racing in the American open wheel ladder system with The Ladder 2013 Yearbook.

To reserve your production copy, your order has to be made no later than January 20th 2013 or this project becomes stalled and unable to be available for your reference. In this New Media age one learns early on that not only does one become self-taught about modern internet communications, but one has to become self-published. Ron Bijlsma and Tony DiZinno have their digital assets edited down into 320 pages of a book that is ready to go to print but need the orders (or support pledges) in-house before the minimum production run can happen.

Please Order Or Pledge Support Now - "The Ladder 2013 Yearbook: Lights - Pro Mazda - USF2000" - and aid in the expansion of information on Ladder concept supported racing.

Page Design - Series Round Introduction - 1. Image Credit: Ron Bijlsma and Tony DiZinno (2013)

The biggest challenge in producing a yearbook like this is actually already behind Ron Bijlsma and Tony DiZinno; the commitment of covering all 42 races and all the challenges that come with it are now met. This Kickstarter approach is literally set up to get to the final challenge of getting the book from their minds and laptops onto paper.

Ron Bijlsma and Tony DiZinno are proud that it will be a self-published project which will allow for independence and total creative control over the book.

The biggest risk with this book project, of course, is that if the minimum threshold is not met, the book will not be printed.

AGAIN - Please Order Or Pledge Support Now - "The Ladder 2013 Yearbook: Lights - Pro Mazda - USF2000" - and help produce a memorable slice of motor culture history.

... notes from The EDJE

33 Indy 500 Winners Line Up At The Brickyard For Their "Close Up"

The display on the Speedway’s front straightaway was part of the ongoing Centennial Celebration; the 2011 Indianapolis 500 will mark the event’s 100th anniversary. Each car present on Tuesday was a former race winner, and each has a story. Image Credit: IMS/Ron McQueeney

33 Indy 500 Winners Line Up At The Brickyard For Their "Close Up"

On Tuesday of this week, 33 winning Indy 500 cars were pushed to the front straight for the photo opportunity of a lifetime. Most of the Indy open-wheel racers came from the Hall of Fame Museum leaving the museum about half full, while other cars were on loan for the shoot from as far away as California. One car was a replica because the original is on view at the Smithsonian in Washington D.C. where as all other cars are the actual winning steeds.

Director of the Hall of Fame Museum, Ellen Bireley introduces us to this effort to capture a unique moment in time and the staging of this historic "close-up" beauty shot in celebration of this upcoming centennial season!

This excerpted and edited from AutoWeekRacing.com -

The “pole” car was the Marmon Wasp that won the first 500 in 1911. Next to it on the “front row” were the cars driven by Dario Franchitti (2010) and A.J. Foyt (1961). Foyt’s car represented both his first 500 win and the winner of the 50th-anniversary event.

The rest of the legendary machines were positioned in a way that revealed an interesting evolution of race cars. Every row included front-engine and rear-engine cars in a pattern. Each decade was represented.

The four double winners were included along with the first winner after World War II. Twenty-seven of the cars are owned by the Indianapolis Motor Speedway Foundation.

The rows and the years the cars won:

-- Row 1: 1911 (Ray Harroun), 2010 (Dario Franchitti), 1961 (A.J. Foyt)

-- Row 2: 1979 (Rick Mears), 1939-40 (Wilbur Shaw), 1970 (Al Unser)

-- Row 3: 1963 (Parnelli Jones), 1990 (Arie Luyendyk), 1947-48 (Mauri Rose)

-- Row 4: 1980 (Johnny Rutherford), 1953-54 (Bill Vukovich), 1968 (Bobby Unser)

-- Row 5: 1964 (A.J. Foyt), 1965 (Jimmy Clark), 1922 (Jimmy Murphy)

-- Row 6: 1969 (Mario Andretti), 1957-58 (Sam Hanks, Jimmy Bryan), 1983 (Tom Sneva)

-- Row 7: 1912 (Joe Dawson), 1982 (Gordon Johncock), 1952 (Troy Ruttman)

-- Row 8: 1972 (Mark Donohue), 1962 (Rodger Ward), 2000 (Juan Montoya)

-- Row 9: 1928 (Louis Meyer), 1995 (Jacques Villeneuve), 1950 (Johnnie Parsons)

-- Row 10: 1977 (A.J. Foyt), 1951 (Lee Wallard), 1992 (Al Unser Jr.)

-- Row 11: 1946 (George Robson), 1978 (Al Unser), 1932 (Fred Frame)

Reference Here>>

... notes from The EDJE