Monthly Archives: May 2011

The Kiwi Bear – McLaren Offy M15

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.

Taxi Driver – Jim Robbins Eagle Ford T/C Mk 2

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Continuing GALPOTS potted history of the Indianapolis 500 Ed’s photos shown here today were taken in 1969, when Ed Arnaudin took the opportunity to get good and close to the Jim Robbins team again.

The driver of the #67 Eagle Ford is Lee Roy Yarbrough, not related to Cale Yarborough, from Jacksonville, Florida.

Lee Roy is said to have won his first race at 19 at a local dirt track and progressed through the NASCAR Sportsman Division with 11 wins and onto Modifieds where he won 83 features in 3 years.

On reaching the top Grand National Division, today called Sprint Cup he won 14 races from 198 starts over 12 years. His best season was 1969 7 wins, including Darlington, Charlotte and both races at Daytona, from 31 starts in the seasons 54 races. Many retirements due to engine failure kept him out of the title hunt won by David Pearson.

Lee Roy made just three starts in the ‘Indy 500’ in ’67 ’69 and ’70 his best finish was in 1970 when he completed 107 laps and retired with turbo failure and was classified in 19th place.

His career, as were several others,was adversely affected by the withdrawal of Ford from competition and Yabrough disappeared from NASCAR after failing to secure a ride for the Daytona 500 in 1973, he was eventually admitted to a mental hospital where a fall inflicted a fatal traumatic brain injury aged 46.

Jim Robbins turned up at the Brickyard in 1969 with three vehicles the #10 and #27 Vollstedts and the #67 Eagle Ford Mk 2, seen here, a design inspired by UK free lance design consultant Len Terry. This vehicle appears to be one of several built in 1968, though at this stage I do not know it’s exact history prior to the 1969 race.

After Denny Zimmerman failed to get the #67 up to speed in 1969 Lee Roy Yarbrough moved over from his ride in the #27 Vollstedt to qualify 8th for the Indy 500, during the race a turbo pipe broke sending him into retirement and a final classification of 23rd.

All of Jim Robbins 1969 entries were powered by turbocharged Ford engines, a turbocharger had first been used at Indy in 1952 on the Cummins Diesel.

With the arrival of the normally aspirated 4,195 cc / 255 cui Ford V8’s in 1963, several Offenhauser powered teams turned to supercharging smaller 2,752 cc / 168 cui motors to remain competitive in 1965, following the lead set by Novi some years earlier.

A couple of Offenhauser powered vehicles had mechanically more efficient turbochargers fitted to these smaller motors in place of the superchargers in 1966. Bobby Unser drove his Eagle Offy to the first turbocharged victory at Indianapolis in 1968.

In 1969 Ford also went the smaller capacity turbocharged route and only three cars in the 33 car field of ’69 did not have smaller 168 cui engines with turbochargers fitted.

Note how the large turbocharger air intake on the left rear of the #67 is rearward facing so as to avoid the problems experienced by the Cummins Diesel turbocharger in 1952 which sucked up so much debris from its front facing turbo air intake that the turbines terminally failed on lap 40.

I’d like to thank Steve Arnaudin for scanning today’s photographs and Amphicar at The Nostalgia Forum for his help in identifying the car.

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

When Everything Went Wrong – Dave MacDonald and Eddie Sachs

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The Indianapolis 500 run in 1964 will be for ever remembered as one of those days where everything that could go wrong, did go wrong, not just in front of the 250,000 spectators at the track , including the late Ed Arnaudin who took took today’s photos from the exit of turn 4, but also on live close circuit cinema broadcasts through out the United States.

The out come of everything going wrong was a fireball and the instant death of Eddie Sachs and a couple of hours later, as a result of his injuries, the death of Dave MacDonald.

Eddie Sachs was known as the ‘Clown Prince of Auto Racing’. Born May 28th 1927 in Allentown, PA, Eddie won the 1958 USAC Midwest Sprint Car Championship.

From 65 AAA and USAC starts Eddie won 8 USAC Championship races, he started twice from pole at Indianapolis in 1960 and ’61. With three laps to go in ’61 Eddie made a pit stop from the lead to replace a delaminating tyre finishing second saying afterwards “I’d sooner finish second than be dead.” This was to be his best career result in the ‘Indy 500’.

In 1963 Eddie was running 4th behind Parnelli Jones and Jim Clark in the Indy 500, when Parnelli’s oil tank split spilling oil on the track allegedly causing Eddie to spin into retirement with 9 laps to go. After the race Eddie got into a fist fight with Parnelli over the issue and earned himself a year on probation from USAC.

Dick Sommers Eddie’s team owner at the race has been quoted since as saying “I’ve often regretted not having yelled and screamed at the USAC board that day in the hope that Eddie would follow suit. He probably would have been suspended for a year and might be still around.”

Dave MacDonald known as the ‘Master of Oversteer’ was born in July 23rd 1936 in El Monte, CA, Dave’s start in motor sport was on the Drag Strips of California and proceeded on to road courses with Don Steven’s Corvettes usually numbered ’00’. Scoring a remarkable 26 wins from 57 races in three seasons brought Dave to the attention of Carroll Shelby in 1963.

Shelby’s faith in Dave was rewarded with 17 further outright and class wins including the first wins recorded in the 260, 289 and Shelby Daytona Cobra’s. Daves last victory was at the wheel of a King Cobra at the USRCC event at Kent Washington on May 10th 1964. From 101 races Dave managed a remarkable 44 victories.

Also severely injured in the aftermath of the 2nd lap incident at Indy in 1964 was Ronnie Duman who’s car caught fire after a secondary collision causing injuries from which it took two and a half months to recover.

As if to emphasis just how difficult it was to learn the lessons of the fireball at Indy in 1964 Bobby Marshmam, who started in the middle of the front row at Indy that year, went tire testing at Phoenix at the end of the season, he was wearing jeans and a T-shirt when his fuel tank ruptured in an accident. A week later Bobby died of the burns sustained in the accident.

My thanks to Steve Arnaudin for the scans of his Dad’s photographs.

Join me again tomorrow for another edition of ‘Getting a lil’ psycho on tyres’. Don’t forget to come back now !

Stock Block – Thompson Buick/Chevrolet

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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

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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 !

A Big Red Cadillac – Ferrari 126 CK

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Taking a one day break from GALPOT’s Indy 500 celebrations, for Ferrari Friday today we are celebrating the life of Gilles Villeneuve, father of 1995 Indy 500 winner and 1998 World Champion Jaques Villeneuve, and Gilles Ferrari 126 CK seen here during practice for the 1981 British GP at Silverstone.

The Ferrari 126 CK was a development of Ferrari’s first turbocharged Grand Prix car which was launched in 1980. Featuring a fire breathing 600 hp 1,496 cc / 91 cui 120º V6 twin turbo charged motor and six speed gearbox Villeneuve described this car as a ‘big red Cadillac’ because the chronic turbo lag, ferocious power curve combined with ground effect aerodynamics made this car a real handful to keep under control.

Despite it’s wayward characteristics Gilles pulled off two of the most entertaining victories this writer has ever seen on TV, the first at Monaco (apologies commentary in German) came after Champion elect Nelson Piquet spun off after leading for 51 laps and reigning Champion Alan Jones experienced a fuel feed problem which allowed Gilles to steal a late victory on the one circuit least suited to his cars few strengths.

Two weeks later Gilles pulled off an even more unlikely victory at the equally tight and unsuited Jarama Circuit this time Villeneuve took the lead after 14 laps when reigning Champion Jones spun off. Gilles kept a four car train behind him for the rest of this exciting race by using the Ferrari’s brutal power on the straights to pull away out of the corners, going round the corners his pursuers bunched up time after time but did not have the brute strength to get an edge on the straights.

The finish of the 1981 Spanish Grand Prix was one of the closest in history with the first five cars being separated by 1.24 seconds. Sadly this would be the last time Gilles would take the checkered flag.

By the time Ferrari arrived in Britain they were developing a way to minimise turbo lag by injecting fuel into the red hot turbo exhaust pipe when the throttle was off, as the fuel ignited in the turbo exhaust pipe the pressure difference created between the burning fuel in the exhaust and the turbine wheel mounted upstream caused the turbine wheel to spin faster which in turn increased the turbo boost to the motor so that when the throttle was depressed more power was readily available. In this form whenever the 126 CK was off throttle a lick of flame would appear out of the exhausts.

At some point this system was banned, it being successfully argued by teams using naturally aspirated motors that the turbo afterburner constituted a second engine, when the rules clearly stated only one motor was allowed.

At the British Grand Prix, apologies Austrian commnetary, Gilles qualified 8th and made up five places on the opening lap before loosing it on the apex of the last corner of the first lap. Notice in the clip that despite his totaled car Gilles somehow manages to squeeze another 1/4 lap out of the car before retiring, this guy just did not know how to stop when the chips were down.

Another memorable performance that emphasised Gilles never say die attitude came at the 1981 Canadian Grand Prix where despite his damaged front wing obscuring his vision and adversely affecting the already poor handing of his Ferrari for numerous laps, Gilles kept his car on the black stuff to record an amazing third place finish.

Gilles was killed in an accident during practice for the Belgian Grand Prix, May 8th 1982

Salute Gilles RIP.

Hope you will join me for another edition of ‘Gettin’ a lil’ psycho on tyres’ tomorrow. Don’t forget to come back now !