Tag Archives: Ed

Rained Off – Eagle Offenhauser 7400

As I mentioned yesterday the 1975 Indianapolis was won by Bobby Unser and today thanks to photo’s by Ed Arnaudin we can have a look at the #48 Eagle Offy 7400 driven by Bobby Unser, seen starting on the outside of the front row with #20 Gordon Johncock and #14 AJ Foyt on pole, that was declared the winner after 174 of the scheduled 200 laps.

All American Racers which manufactured Eagle racing cars was set up initially by Dan Gurney and Carroll Shelby to tackle the World Championship Grand Prix circuit and the US Champ Car and Sportscar circuits in 1964.

In 1967 Dan Gurney won the Belgian Grand Prix in an Eagle Weslake Mk 1, also known as T1G, run by the firms UK based satellite team known as Anglo American Racers. The following year Bobby Unser won the Indy 500 in an Eagle chassis.

Upon retiring from the cockpit Dan Gurney bought Shelby out and in 1973 Gordon Johncock in an Eagle run by Pat Patrick was declared winner of the tragic rain shortened race, in which his team mate Swede Savage suffered injuries from which he would later die and a member of his pit crew was fatally struck in pit road by a fire truck going the wrong way down pit road to attend to the Savage incident.

By 1975 McLaren also with two Indy 500 wins were regularly challenging Eagle for overall supremacy on the USAC Champcar Circuit and this would prove to be the third and final Indy 500 victory for the Eagle marque.

It transpires that the Eagle chassis type numbering system is worthy of a large dense volume all of it’s own, however to the best of my knowledge the winning car that Bobby Unser car drove is a type 7400, if a chassis number becomes known to me I’ll add it below.

Bobby Unser is part of one US Racing’s elite families, he and his younger brother Al Snr competed on the Champ Car circuit in the 1960’s, 70’s and 80’s.

Bobby known as the ‘undisputed King of Pikes Peak’, counts among his many success 13 Pikes Peak hill climb victories, 8 of them in a ten year period, the ’68 and ’74 USAC Champ Car championships, along with his Indy 500 wins of ’68, ’75 and ’81.

In 1968 Bobby participated in two Grand Prix for BRM, after qualifying for the Italian Grand Prix he flew back to the United States and took part in the Hoosier 100 at Indianapolis, upon his return to Monza with fellow Italian GP qualifier Andretti, they were told that the rules forbade drivers to participate in 2 races less than 24 hours apart.

In 1975 Bobby also won the IROC championship to confirm his all round versatility.

Hope you have enjoyed today’s All American Racers edition of getting a lil’ psycho on tyres, and that you will join me again tomorrow. Don’t forget to come back now !

Three Time Winner – McLaren Offy M16

11 Replies

The McLaren M16 was designed by Gordon Coppuck in 1970 and took essential design queues from the Lotus 72, that was dominant in Formula One, including the chisel nose and side mounted radiators.

On it’s Indy debut in 1971 M16’s of Revson, Donohue and Hulme qualified 1st, 2nd and 4th for the 500, the race was won by repeat winner Al Unser with Peter Revson coming home a career best 2nd. Mark Donohue driving for the private Penske team said of the M16 that it “…obsoleted every other car on track…” and proved it with a win in 1972.

In 1973 Johnny Rutherford, seen driving the M16C/5 here at Goodwood Festival of Speed, took pole position again in his works M16 though the Eagles of Johncock and Vukovich Jr took first and second in the race that was called early due to rain. The following season driving the same car Rutherford started 25th on the grid and went on to win the first of his three Indy 500’s.

Photo Ed Arnaudin

In 1975 Rutherford drove the #2 Gatorade M16E/1 qualifying 7th and coming in second.

Photo Ed Arnaudin

Lloyd Ruby drove the #7 Allied Polymer Group M16E/2 qualifying 6th and finishing 32nd in 1975 and in 1976 Rutherford dominated the Indy 500 with a victory from pole in this ex Ruby chassis. Cliff Hucul raced this same car at Indy from ’77 – ’79 qualifying a best 18th in ’79 and finishing a best 22nd in ’77.

Photo Ed Arnaudin

Bob Harkey seen in the #33 Dayton Walther M16C/2 here in 1975 qualified 23rd for the Indy 500 and after 18 laps handed the car over to Salt Walther who’s own M16 had experienced turbo failure after 2 laps. Salt was flagged in 10th at the conclusion of the rain affected race. In 1976 David Hobbs nade his fourth and final Indy start in this car starting 31st and finishing 29th.

In 1978 Jerry Karl modified M16C/2 fitting a Chevrolet stock block motor, Karl made three starts in ’78, ’80 and ’81 recording best start positions of 28th in ’78 and ’80 and a best finish of 14th in ’78. This car still fitted with a Chevy stock block but now with orange #15 bodywork as used by Peter Revson resides in the Matthew Collection.

My thanks to Steve Arnaudin for scanning his Dad’s photographs and to everyone who contributed to the M16 thread on The Nostalgia Forum for providing the chassis details.

Hope you have enjoyed today’s chisel nose edition of ‘Gettin’ a lil’ psycho on tyres’ and that you will join me again tomorrow. Don’t forget to come back now !

The Kiwi Bear – McLaren Offy M15

2 Replies

This is the only photo to have so far surfaced by Ed Arnaudin at Indianapolis from 1970.

The car is a McLaren M15, based loosely on the Can Am dominating M8 chassis, Gordon Coppuck incorporated numerous parts from the M8 Can Am car into the design of the M15. The stressed aluminium monocoque chassis was held together with 3 steel bulkheads with the 4 cylinder Offy turbocharged engine bolted directly to the rear most and supported by two a frame running form the bulkhead to the bell housing.

The drivers of the cars were originally scheduled to be 1967 world champion Denny Hulme known as ‘The Bear’ in the #73 and Chris Amon in the #75, though team founder, Bruce McLaren also turned a few laps in the #79 spare car on the first day of practice running in a three car line astern McLaren train with fellow New Zealanders Denny and Chris. Bruce however never had any intention of taking the start.

The #73 of Denny caught fire during practice as a result of a fuel leak from a quick release breather cap that had not been properly secured. As Denny slowed the car down the intensity of the largely unseen methanol flames increased forcing him to jump from his car while it was still moving at an estimated 70 mph !

Denny was to miss the 500 due to the burns his hands received, meanwhile Chris Amon was not happy about the Indianapolis track set up, his speed was 3 mph slower than Bobby Unser who tested the #75 and the extent of the injuries received by Denny convinced him to withdraw from the race.

Teddy Meyer team manager drafted Carl Williams into the #75, he qualified 19th and finished 8th, while Peter Revson was drafted into the #73 qualifying 16th he retired from the race with a broken magneto classified 22nd.

2 days after the 1970 Indy 500 McLaren founder Bruce McLaren was killed testing the latest incarnation of the McLaren M8 Can Am car leaving Denny Hulme and Peter Revson to become the back bone of the McLaren team in Formula One, USAC and Can Am series until 1974.

Thank you for joining me on this Team Kiwi edition of ‘Gettin’ a lil psycho on tyres’ I hope you will join me again tomorrow. Don’t forget to come back now !

07 12 12 PS Jerry Entin has kindly informed me that the original plan was for Denny Hulme to drive the #73 but that he burned his hands shaking down the #79 McLaren. As a consequence Peter Revson was drafted in to drive the #73. I’ll be writing a full follow up blog with some interesting new photographs during the month of May.

Stock Block – Thompson Buick/Chevrolet

11 Replies

In 1961 legendary American speed king Mickey Thompson employed british Dolphin Engineering designer John Crosthwaite to design and build three challengers for the 1962 Indianapolis 500.

Aided by Fritz Voigt and his crew the challengers were transformed from blank sheet of paper into drawings and three complete cars in just 120 days.

(Photo by Ed Arnaudin)

Dan Gurney, possibly seen sitting in the vehicle above, had a lot riding on the 1962 Indy 500, at his own expense he invited Colin Chapman the genius behind Lotus Cars over to see the 1962 Indy 500 with a view to getting a deal done for Lotus to hook up with Ford and himself for a proper shot at the 500 in 1963.

Whatever else happened in 1962 Dan had to look good. Dan had originally agreed to drive the gas turbine powered #52 John Zink Trackburner, however the characteristics of the power plant did not sit comfortably with Dan who was racing on an oval for the first time, so he switched to drive Mickey Thompsons all aluminium Buick V8 stock block powered #34 Thompson instead.

Dan made a wise move, qualifying 8th and retiring with a seized rear end in 20th, the move looked doubly good for Dan when one of two drivers who drove the #52 John Zink Trackburner after Dan had left, veteran Bill Cheesbourg, followed Dan and drove the #35 Harvey Aluminium Special also a Thompson – Buick.

Cheesbourg like the previous incumbent Chuck Daigh failed to qualify the #35.

A third #33 Thompson Buick, belonging to Jim Kimberly, who the year earlier had owned and run the Kimberly Cooper Climax, was driven by Porky Rachwitz, Jack Fairman who both failed to qualify.

(Photo by Ed Arnaudin)

For 1963 Thompson took four cars to Indianapolis all now powered by Chevrolet stock blocks, the # 85 shown here with, possibly Micky Thompson standing on the extreme right behind the pit wall, is one of the original 1962 cars, driven in 1963 by Bill Cheesbourg until he wrecked the car in practice before qualifying had even started.

Cheesbourg who seems to have made a career out of driving novel designs at Indy failed to qualify a conventional #27 Watson for the race in 1963 while the #85 is not recorded as having taken any further part in the ’63 race after it was wrecked.

My thanks to Steve Arnaudin who kindly scanned his Dad’s photo’s for me to share and to Tom, FB84, Michael, Jim, EB, Amphicar, Tim and Tom G over at TNF who have helped me identify the cars and stories attached to them.

Hope you have enjoyed today’s Stock Block edition of ‘Gettin’ a lil psyco on tyres’ and that you will join me again tomorrow. Don’t forget to come back now !

1962 DNQ – John Zink Trackburner

10 Replies

The other day I caught a bit of a radio programme about interview questions asked of potential Oxbridge (Oxford & Cambridge) university students, one of which was “If you are not in California how do you know it exists ?”

This got me thinking about if one was not at a particular race how could one know what happened ?

Looking into the story behind today’s photograph by Ed Arnaudin several ‘beliefs’ I have long held were ‘corrected’, namely that after the appearance of Jack Brabham’s Cooper Coventry Climax T54 the next car with an engine in the back to appear at Indianapolis was Jim Clark’s #92 Lotus Ford 29 in 1963.

Much to my surprise I found out that there were two rear engine vehicle types at Indianapolis in 1962 !

The John Zink Trackburner, above, and Mickey Thompson’s Harvey Aluminium Special, remarkably they were both driven by Dan Gurney who invited Colin Chapman of Lotus over, all expenses paid, for the 1962 Indy 500 in an attempt to secure a deal with Lotus & Ford to have a winning shot at the race in 1963 !

The history of running turbines in Indy cars goes back to 1955 when a Kurtis Kraft 3000 chassis was fitted with a 175 hp Gas Turbine with the support of USAF General Curtis Le May. This vehicle known as the SAC Fireboid, see images at the bottom of this link, was used for testing by Firestone and for a demonstration at Indy in 1955.

In 1958 a Mr Williams of the Boeing Aircraft Company approached Frank Kurtis in 1958 to design a purpose made turbine powered vehicle, allegedly Frank drew up plans for a vehicle with the engine at the rear, primarily do deal with the 1000º F plus exhaust gas temperatures. However the powers that be at USAC were not sufficiently timely or co-operative to get the project up and running.

For 1962 the 1955 and ’56 winning owner John Zink had his Chief Mechanic Denny Moore build a rear engine chassis to take a Boeing Turbine.

Prior to the Indy 500 the car was tested and crashed by John ‘Jack’ Zink at his own private 5/8ths mile circuit which included 11º banking ! After repairs the car was taken to Indianapolis where the rookie road racer Dan Gurney tried it after passing his Rookie test in a front engine Roadster.

Gurney managed to run at 143 mph not fast enough to qualify in the gas turbine Trackburner and felt that though more speed was achievable throttle lag in traffic would present insurmountable problems during the race. Dan ended up qualifying and racing Thompson’s Buick stock block, under, powered Harvey Aluminium Special instead.

Indy veteran Duane Carter was next to run in the Gas Turbine Trackburner, Carter ran slower in the corners but faster on the straights than Gurney recording a best time of 142 mph.

Duane qualified for the ’62 Indy 500 in a conventional roadster belonging to Zink and Bill Cheesebourg, most likely the driver seen in the car here, had a shot at running in the turbine Trackburner he managed a best time of 145 mph but like Gurney fancied his chances in a Buick stock block powered Thompson, unlike Gurney he could not get up to qualifying speed before crashing.

Finally Duane Carter in danger of being bumped off the grid had one more shot at qualifying in the turbine Trackburner but he could not record a time faster than 143 mph. It was concluded that despite running nearly a full race distance during qualification for the 500 the combination of throttle lag, high track side temperatures, and inconsistencies born out of the three different drivers who spent time in the cockpit led to the cars failure to qualify.

My thanks to Steve Arnadin for scanning his Dad’s photograph, to Tom, E.B, Michael, Tim, at The Nostalgia Forum, for filling a large gap in my knowledge.

Hope you have enjoyed today’s belief changing edition of ‘Gettin’ a lil’ psycho on tyres’ and that you’ll join me again tomorrow. Don’t forget to come back now !

Sign of things to come – Kimberly Cooper Special

Trading Places – 1960 Watson Roadsters

7 Replies

Thanks to Ed Arnadin‘s photos today we will be continuing our 100th anniversary of the first running of the Indianapolis 500 by having a behind the scenes look at Indianapolis in 1960.

Watson, Indy 1960

Our story begins with an invitation from a mutual friend of Ed Arnaudin and the Indy car owner Jim Robbins to visit the garage of the #97 Jim Robbins Special, where a Watson Roadster powered by an upright 4178 cc / 255 cui twin overhead cam Offenhauser is being prepared.

AJ Watson shares the record for building the most cars that won the ‘Indy 500’s’, seven, with Roger S Penske. Watson built his first car ‘City of Glendale’ in 1950, Dick Rathmann qualified 18th on the grid driving the ‘City of Glendale and retired from the race with a stalled motor after 25 laps. After working on aircraft assembly lines for Lockheed Watson was hired as Chief Mechanic by John Zink in 1954.

Watson modified Zinks Kurtis KK500C roadster and Bob Swiekert duly won the 1955 Indy 500 with it, in 1956 AJ built the first of 23 Watson Roadsters for John Zink, these iconic vehicles were to win a further six Indy 500’s in 9 years.

The Watson chassis was narrower than the Kurtis, featured extensive use of 4130 chromoly tubing in place of the steel used by Kurtis, innovative use of magnesium in the drive line and body panels saved further weight. The Offenhauser engine was mounted upright on the left side of the chassis to increase weight bias on the corners of the car closest to the inside of the track rather than tilting the engine at 36 degrees as Kurtis had done and later Eperly / Salih would do with engines 18 degrees off horizontal.

With a 220 lb weight saving the 1,640 lb Watson Roadster design remained fundamentally unchanged from 1956 until 1963, AJ Foyt drove a Watson into Victory Lane at Indianapolis for the last time in 1964.

The car, seen being worked on above was one of three entered in the race owned by Safety Belt manufacturer Jim Robbin’s, the #97 was driven by the man who first put a Watson on the grid of the Indy 500 in ’53, Dick Rathmann. In 1960 Dick qualified for fourth spot on the grid and retired from the race in 31st place after 42 laps with defective brakes.

Dick Rathmann had a varied career spanning 1949 – 1964 encompassing the AAA Championship, NASCAR (13 wins, all in Hudsons, from 128 starts) and latterly the USAC Championship. He started from the Indy pole in 1958 but was collected in an accident on the opening lap by fellow front row starter Ed Elisan, the ensuing 15 car pile up cost Pat O’Conner his life.

As a result of that fatal accident Dick Rathmann became the first man to start from pole not to complete a lap of the race, a stat that has since been emulated by Roberto Guerrero and Scott Sharp. Rathmann’s best Indy 500 finish was 4th in 1956.

Now this story enters the racing twighlight zone, ever since races were organised teams and drivers have made it there business to pull the wool over organisers eye’s. ‘Dick’ Rathmann was actually born James. James had a brother, younger by four years, called Richard and when underage Richard wanted to go racing in 1946 James and Richard simply swapped names, James became ‘Dick’ and Richard became ‘Jim’ a change that ended up sticking for life.

Indy 500, 1960

In 1960 Jim Rathmann was the driver of the #4 Ken Paul Special a Watson Offenhauser Roadster MK2, Jim qualified 2nd and can be seen in the blue car in the middle of the front row as the cars cross the 100 yards of bricks at the start of the 1960 Indy 500 above, his brother ‘Dick’ in the #97 is on the inside of the second row.

Rathman and Sachs, Indy 500, 1960

Jim seen here battling with Eddie Sachs went on to win the 1960 Indy 500, a race memorable because the lead changed a record 29 times. Last year (2010) Jim became the sixth Indy 500 winner to celebrate their 50th Anniversary of the Indy 500 win, Ray Harroun, Jules Goux, Rene Thomas, Peter DePaolo and Louis Meyer were the others.

Three time Indy winner Johnny Rutherford presented Jim with a trophy to commemorate the 50th anniversary of his win, Rutherford who was present at Indy as a spectator for the first time in 1960 remembered the race thus ” We had seats in the North grandstands of the infield on the backstretch. The duel between Jim and Rodger [Ward winner of the 1959 Indy 500] was one for the record books. Little did we know that some 50 years later [the 29 lead changes] would still be an Indy 500 record.”

Jim said of the 1960 Indy 500 “That was a great duel with Rodger. Ward was one of the toughest drivers out there and beating him meant a lot to me, and winning the Indy 500 changed my entire life. Winning the ‘500’ was and still is the all-time highlight of my racing career. To win that day, in that race against Ward means so much to me.”

Slightly off topic after retirement Jim became a Cadillac dealer in Melbourne, Florida and is credited with convincing GM president Ed Cole that GM should set up a deal to supply his friends the astronauts on the NASA space programmes with a pair of new cars each year.

My thanks to Steve Arnaudin for the scans of his Dad’s slides, to B² and Indycar Nation for additional information.

Hope you have enjoyed today’s 1960 edition of ‘Gettin’ a lil psycho on tyres’ and that you will join me again for a celebration of the 50th anniversary of the first running of the Indianapolis 500. Don’t forget to come back now !

Gettin' A Li'l Psycho On Tyres

Art Tidesco blogs on all things motoring

Tag Archives: Ed

Rained Off – Eagle Offenhauser 7400

Three Time Winner – McLaren Offy M16

The Kiwi Bear – McLaren Offy M15

Stock Block – Thompson Buick/Chevrolet

1962 DNQ – John Zink Trackburner

Sign of things to come – Kimberly Cooper Special

Trading Places – 1960 Watson Roadsters