Tag Archives: Bennett

Scottish Hillclimb Champion – Chevron Holbay B17 #F3.70.08

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1967 Chevron started building cars with 1 litre / 61. cui “Screamer” motors to comply with the tertiary international Formula 3 regulations.

The manufacturers first Formula 3 model was the one off B7 driven by Peter Gethin towards the end of 1967, this was followed by a batch of 8 production versions of the B7 built in 1968 known as B9’s

Chevron Novamotor B17, Grand Finals, Castle Combe,

A one off B9B with stressed panels incorporated into the frame was built at the end of 1968 and again raced by Peter Gethin who drove the car to a debut win.

The following year Chevron built 14 production versions of the B9B known as the B15 and in 1970 9 upgraded Formula 3 cars followed known as B17’s.

Chevron Novamotor B17, Grand Finals, Castle Combe,

I believe today’s featured car seen in these photographs at the recent Grand Finals Castle Combe meeting where it was driven by Jim Blockley is the same car as that advertised by David Pullen in October 2013.

Distinguishing features include the one piece top body work from the back of the cockpit to the nose, the exhaust, and the universal joint with sliding spline driveshafts in place of the more common for the period Rotoflex driveshaft couplings.

Chevron Novamotor B17, Jim Blockley, Grand Finals, Castle Combe,

According to former Derek Bennett Engineering employee Kevin ‘Ossy’ Hodge, who was involved in building nearly all the B17’s, the car formerly belonging to David Pullen is the eighth Formula 3 B17 to be built and was originally supplied to Ken Sedgley.

Kevin also established recently that unlike Chevron’s GT’s chassis frames for the B8, B16 and later B19 models which were built by sub contractor Arch Motors the frames for the open wheelers were subcontracted out to Racing Frames in Ware, Hertfordshire.

Chevron Novamotor B17, Jim Blockley, Grand Finals, Castle Combe,

In his notes on Ken Sedgley’s B17, see note 13 on this link, Allen Brown records that #F3.70.08 was raced by Ken in Formula 3 and Libre events with Holbay motors and upgraded the following year with a 1600 cc / 97 cui Holbay motor compliant with the new for 1971 spec Formula 3.

John Finch of Chesterfield bought and raced the car midway through 1971 and shared it with Graham Lynch in 1972, the following year a Formula Atlantic Spec production based twin cam was fitted and the car was raced in both Formula Atlantic and Formula Libre events.

Chevron Novamotor B17, Grand Finals, Castle Combe,

Alan Thompson bought the car for hillclimbing campaigning it in 1975 and 1976 which culminated in him securing the 1976 Scottish Hillclimb Championship.

Russell Paterson acquired the car in 1977 but crashed it before it passed through the hands of Bobby Howlings and M Wakefield-Brand in 1978.

Chevron Novamotor B17, Grand Finals, Castle Combe,

David Pullen bought the car in 1991 and in the spring of 2009 the car was significantly rebuilt with a 1964 to 1970 F3 spec 1 litre / 61 cui Holbay R70 MAE engine rebuilt by Stuart Rolt and Mk8 Hewland 4 speed gearbox by Cavan Riley.

John Pearson raced this car in 2014 prior to selling it to Jim Blockley who raced a Brabham in Historic Formula 3 events up until appearing in the Chevron at Castle Combe.

Chevron Novamotor B17, Grand Finals, Castle Combe,

The 1964 to 1970 Formula 3 engine specs required the use of a production engine block and a single choke carburetor fitted with a 36mm restrictor twixt the carburetor and inlet manifold.

The cylinder heads were free to be modified with gear driven cams replacing cam chains and dry sump lubrication for the crankshaft, the 1 litre / 61 cui Formula 3 motor’s were known as “screamers” because they could occasionally be buzzed up to 13,000 rpm with little or no damage.

Chevron Novamotor B17, Grand Finals, Castle Combe,

By far the most popular blocks used in the “Screamer” formula were the three crank bearing 105E and 109E blocks from Ford, Cosworth built a Modified Anglia Engine known as the “MAE” based on 105E but the term “MAE” appears to have carried over onto products for the same market from both Holbay and Novamotor who also used Ford 3 bearing engine blocks.

It was soon realised that the least resistance to flow was offered by a twin choke Weber IDA down draught carburetor with a blanked off choke, for which special inlet manifolds were built to fit engines that were tilted over at 30 degrees along the crankshaft axis in the chassis.

My thanks to all who contributed to the B17 thread at TenTenths and to the Ford 105E thread at The Nostalgia Forum especially Snakedriver, Ray Bell, John Saunders and David Birchall who kindly answered my question regarding the use of the blanked off twin choke carburetors.

Thanks for joining me on this “Scottish Hillclimb Champion” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again tomorrow. Don’t forget to come back now !

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The Blank Car – Chevron Cosworth B16 #B16-DBE-27

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1969 saw Derek Bennetts Chevron launch what turned out to be it’s final closed cockpit model the B16, most of which were powered by 4 cylinder Cosworth FVA or larger FVC motors, though at least one was powered by a Mazda rotary and at least two more were raced with BMW motors.

Chevron Cosworth B16, Race Retro, Stoneleigh

23 Chevron B16’s are believed to have been built, 20 from 1969 to 1970 and three more in 1971, however the desirability of these coupés has increased since the 1980’s and many more than the original 23 exist today as numerous continuation and replica examples have been built and are still available to order from Chevron.

Chevron Cosworth B16, Race Retro, Stoneleigh

I believe the Cosworth powered chassis #B16-DBE-27 was originally delivered to Chevrons Swiss agent and noted racing driver Jo Siffert who sold it onto fellow Swiss driver Arthur Blank who took it hill climbing and won at least one race at Ulm-Laupheim in Germany with it.

Chevron Cosworth B16, Race Retro, Stoneleigh

Shortly afterwards the car is said to have been burnt out in a club race and it is believed the useable remains or at the very least the chassis plate were built up into a Steinmetz Opel powered B19 spyder, as were numerous other B16’s after the closed cockpit class for sports racing cars was abandoned.

Chevron Cosworth B16, Race Retro, Stoneleigh

Arthur Blank entered his B19 in at least two races at the Nurburgring and Le Mans in 1971 for himself and “Brilliant” Bob Wollek to drive but it would appear the car never took part in either event and Bob appears never to have raced this B19 which Arthur drove to a second place finish in class at Hockenheim at the end of 1971.

Chevron Cosworth B16, Race Retro, Stoneleigh

Arthur continued to compete in the B19 through 1972 mostly in hillclimbs and did a deal with Austrian Freddy Link to drive the car, now with a Ford motor installed, at Interlagos where Freddy finished 18th in the 500km race.

It is believed Arthur then upgraded his B19 to B21 spec, as were many other B19’s, which he again took hill climbing in 1973, Gerhard Kobler competed with the car in 1974 and 1975 running a turbocharged Cosworth motor until crashing it while testing at Misano. Chevron aficionado Vin Malkie appears to have been responsible for restoring the B21 spec car back to B16 spec with bodywork in Arthur Blank’s 1970 colours.

Thanks for joining me on this “The Blank Car” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again tomorrow. Don’t forget to come back now !

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When Forty Four Equaled Fifty – Chevron B8 #CH-DBE-78

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1967 had been a busy year for Chevron with the production of the one off BMW powered B4 GT , one off BRM V8 powered B5 GT, a run of 7 B6 GT’s six with BMW motors and one with a Ford Twin cam and the companies first open wheeler B7 Formula 3 car.

For 1968 Chevron really stepped it up producing six different models and 59 cars in total, by for the most numerous with 44 examples built was the B8 GT which differed only in detail from the B3. B4, B5 and B6 models and were mostly powered by the 2 litre / 122 cui BMW 4 cylinder engine with a few being powered by the Cosworth FVA and FVC motors and a couple with Climax engines of varying sizes.

Chevron B8, Andrew Newall, Silverstone Classic

In order to comply with the Group 4 category in international events series production of the B8 should have run to a minimum of fifty units however in order to make up the short fall Derek Bennett managed to get away with renumbering and counting rebuilt cars as new vehicles, succeeding where Enzo Ferrari failed with the 250LM some years earlier, hence the chassis numbers for the B8 GT’s run way beyond the 44 chassis actually built brand new and tracing their exact histories is far from straight forward.

In October 1945 Joseph Cyril Bamford founded the company with which his initials have become synonymous in a small lock up with a prototype electric welder, some scrap steel and some surplus jeep axles which he fashioned in to a trailer that sold for a handsome profit, 3 years later he introduced the first hydraulic tipping trailer to the European market and in 1951 he painted his products a shade of yellow which has also long since become synonymous with JCB.

Chevron B8, Andrew Newall, Silverstone Classic

With the introduction of JCB’s backhoe trailer and “hydra digga” JCB established themselves with must have equipment for every self respecting farming and building contractor with earth moving requirements, by 1968 JCB were sponsoring an MGB driven by Peter Brown and Tony Fall in continental events as part of their marketing strategy.

For 1969 Peter graduated into the 2 litre GT class using at least one Chevron B8 including today’s featured chassis #CH-DBE-78 which he is believed to have shared with Roger Enever in the Targa Florio where the pair were classified 14th despite not finishing after and accident, at Spa classified 20th, Le Mans where they retired, Zeltweg recording a 13th place finish, before rounding out the season with two retirements in Barcelona and Paris.

Chevron B8, Andrew Newall, Silverstone Classic

Peter drove a B8 in numerous other events during 1969 but at the time of writing it is by no means certain #CH-DBE-78 was the car he drove in all of them. He appears to have taken a bit of a sabatical from racing between April 1970and March 1972 when he reappeared in the JCB sponsored Ferrari 512M chassis #1030.

Andrew Newall is seen at the wheel of #CH-DBE-78 in these photographs earlier this year at Silverstone Classic during qualifying in the rain and racing in the dry.

Thanks for joining me on this “When Forty Four Equaled Fifty” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again tomorrow when I’ll be looking at possibly my favourate Formula 5000 car. Don’t forget to come back now !

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1967 – Chevron B6

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In 1966 hitherto builder of Clubman’s racing cars Chevron guided by founder Derek Bennett diversified into building a series of GT Cars starting with two Ford Twin Cam powered Chevron GT’s that retrospectively became known as B3’s an a similar BMW powered car known as the B4.

Chevron B6, Nick Thompson, Sean McClurg, Gold Cup, Oulton Park

Both of these models won first time out as did the one off 2 litre / 122 cui BRM V8 powered B5 built in 1967 which Brian Redman drove to a debut victory at Oulton Park in April 1967.

Chevron B6, Nick Thompson, Sean McClurg, Gold Cup, Oulton Park

1967 also saw the fledgling business build a batch of six similar B6 GT cars similar to the one seen here shared by Nick Thompson and Sean McClurg at Oulton Park in August.

Chevron B6, Nick Thompson, Sean McClurg, Gold Cup, Oulton Park

Like the similar B3, B4 and B5 GT models the B6 was also driven to a debut victory, by Digby Martland at Brands Hatch who also claimed the B3 debut victory in 1966.

Chevron B6, Nick Thompson, Sean McClurg, Gold Cup, Oulton Park

Six of the B6’s were powered by 2 litre / 122 cui BMW motors and the other by a 1600 / 97.6 cui Ford Twin Cam, between them the B6’s are credited with at least 14 wins and an additional 4 class wins.

The last documented in period class win being recorded by Martyn Denley at Silvertone in 1970, Simon Hadfield and Michael Schryver were campaigned their Michael Schryver Antiques example in Thundersports from 1985 to 1986.

Thanks for joining me on this “1967” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again tomorrow when I’ll be looking at the last in the current series of Lola T400’s. Don’t forget to come back now !

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No Added Lightness – Chevron B2

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After building his first two Chevron cars, retrospectively called B1’s, for clubmans racing in 1965, Derek Bennett and his small team built four more clubmans cars, at his Chorley Old Road premises in Bolton, in 1966 which became known as B2’s.

Chevron B2, Oulton Park,

Three of the B2’s like the two B1’s were originally fitted with 1500 cc / 91.5 cui four cylinder Ford motors while a fourth was fitted with a 1 litre / 61 cui British Motor Corporation (BMC) engine.

B2 drivers included Howard Heerey, John Love in Barnsley, Geoff Temple, Barry Joel, John Carden and his brother Edward Carden who owns one of the B2’s which is now resident in the United States.

In an interview with Tony ‘Giraffe’ Gallagher former B2 owner John Love recalled that the more powerful 120hp B2 was not as quick as his lighter Lotus 7, but that it handled “beautifully”.

Today’s featured car belongs to Vin Malkie owner of Chevron Cars who completed a restoration of the car in 2013.

Thanks for joining me on today’s “No Added Lightness” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again when I’ll be looking at another unloved Lola T400. Don’t forget to come back now !

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IRS 7 Beater – Chevron B1 #01

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Born in Manchester in 1933 Derek Bennett took a keen interest in model aircraft before completing an apprenticeship in mechanical and electrical engineering.

Working as a mechanic Derek was soon applying his skills and intuition to motor racing applications that included a V8 powered model Ford Model Y (British) stock car, two JAP powered Midgets for oval racing and Austin 7 specials for 750 Formula events organised by the 750 Motor Club at his local Oulton Park and Aintree Circuits.

Chevron B1, Race Retro, Stoneleigh.

At the same time Derek was building a reputation as a quick driver racing his Formula 750 special which was upgraded to Clubmans spec with a mandatory Ford 1172 engine and was pitted against the ubiquitous Lotus Seven’s and rarer Len Terry designed Terrier a MkII version of which Derek also prepared and raced for Doug Linton.

Derek graduated to a less than successful Formula Junior car of his own devising, allegedly originally conceived on the back of a piece of wall paper, which was replaced by a Gemini FJ and BT9 Brabham F3 car, along with a Lotus Elite and TVR.

Chevron B1, Race Retro, Stoneleigh.

While successfully racing a Formula Libre Lotus Twin Cam powered Brabham BT14 for Robert Ashcroft Derek was approached by accounts clerk Brian Classic, for whom Derek had earlier helped sort out a Daimler SP250 and another Lotus Elite, to build the Clubmans car that kick started Derek Bennett Engineering Ltd as a racing car manufacturer of Chevron Cars with financial help from John Bridges who’s initial B would become synonymous with the Chevron type designations.

Derek decided that he would build two such Clubman’s cars, the first for himself, which were to be Lotus Seven beaters. Using typical for racing practice for the period Derek specified proprietary Triumph suspension uprights and steering rack, a Lotus Elite differential housing and Brabham wheels to save on costs.

Chevron B1, Race Retro, Stoneleigh.

The rest of the car, named B1 after it’s first appearance, was drawn out in chalk on the floor at Derek’s Salford workshop at 31 Church Street with David Willars and featured independent rear suspension (irs) all round unlike the contemporary Lotus which it set out to beat.

Despite not being complete the first Chevron was taken to Ireland for three races in July 1965 where Derek won the first at Kirkistown on the cars debut, setting fastest lap for good measure before his Formula Libre entrant Robert Ashcroft won in the car on it’s second appearance at Dunboyne where he beat future Formula One star John Watson who was driving a Crosslé.

Chevron B1, Race Retro, Stoneleigh.

Back on the mainland Derek is known to have driven his first Chevron to at least two further victories in 1965 at Mallory Park in August and Silverstone in October, successes which set the phone lines at Salford ringing with new orders for 1966.

Chassis #01 is seen in these photographs at Race Retro earlier this year after a full restoration by Vin Malkie who I believe owns or has recently owned 5 of the first 6 Chevrons built.

Note an under powered prototype Chevron B1 Mk II road car project appeared in 2007 but is appears never have gained traction for a production run.

Thanks for joining me on this “IRS 7 Beater” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again tomorrow. Don’t forget to come back now !

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Bird’s Wyedean Win – Wyedean Forest Rally

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On Saturday I popped over to the Forest of Dean to see the 40th Weir Engineering Wyedean Forest Rally for which 175 entries had been received.

The Wyedean started and finished at Chepstow Race Course and was run over 8 stages making a total of 43.42 stage miles that were linked by 98.37 road miles.

MG ZR, Gemmell, Beebe, Blaze Bailey, Wyedean Rally,

This was the first Rally I had been to since the 1985 Lombard Race Rally, during the course of the day I visited two stages the 3.26 mile Blaze Bailey on the eastern edge of the Forest of Dean near Soudley and 6.02 mile Mailscot near Staunton on the western edge.

Above co driver Matt Beebe directs enthusiastic spectators in their efforts to get driver Richard Gemmell and his MG ZR out of a mud trap that saved the car from a couple of hundred foot drop into an abyss on the last corner of the Blaze Bailey stage, the #243 crew recovered to eventually record a 100th place finish from the 120 crew’s who made it back to Chepstow.

Mini Cooper S, Lewis, Fife, Mailscot, Wyedean Rally,

Unfortunately I was not party to any radio communications during the event which made it impossible to follow what was going on in terms of positions and stage times so today’s blog will be limited to photographs of the winners of the 5 classes which split into a total of 16 sub classes each with a winner along with an overall winner.

The historic class was divided into four, winners of the H1a Class were Peter Lewis and Paul Fife in the 1963 #255 Mini Cooper S, seen above in the Mailcot Stage.

Datsun 240Z, Easson, Reynolds, Blaze Bailey, Wyedean Rally

Back in 1971 and 1973 Datsun 240 Z’s driven by Edgar Hermann and Shekhar Mehta respectively won the gruelling East African Safari Rally proving the model was no flimsy boulevard cruiser.

It was therefore perhaps no great surprise that Jeremy Easson and Mike Reynolds won class H2b on Saturday with their #53 240Z built in 1974.

Mazda RX7, Scannell, Stevens, Blaze Bailey, Whedean Rally,

Nowhere near as noisy as it’s circuit racing siblings was the 1979 #48 Mazda RX7 crewed by class H3b winners Jake Scannell and Adrian Stevens which like the #53 Datsun is seen on the Blaze Bailey stage above.

Ford Escort RS1800, Elliot, Price, Blaze Bailey, Wyedean Rally,

The Ford Escort in MkI and MkII guises was a rallying staple through out the 1970s, winning the 1970 World Cup Rally in MkI form and the 1979 World Rally Championship in MkII form.

The #24 Escort RS1800 Replica above crewed by Nick Elliot and Dave Price won the H4 category and as we shall see was one of three MKII shelled Escorts to win awards on Saturday, the #24 started life as a far more mundane 2 door Ford Escort Popular.

Nissan Micra, Quinn, Carmen, Mailscot, Wyedean Rally,

Three classes were run for the Rally First starter series for novice crews running production cars with a few basic competition safety features.

The RF 1.0 class for cars running motors of no more than 1 litre / 61.5 cui was won by the 2001 #260 Nissan Micra S crewed by Nick Quinn and Neill Carmen seen above on the Mailscot Stage.

Volkswagen Polo, Handford, Davies, Blaze Bailey, Wyedean Rally,

Morgan Handford and Richard Davies took top honors in RF1.4 despite taking the longest route around the final corner of the opening Blaze Bailey stage in their 1999 #236 Volkswagen Polo 1.4 16V.

Volswagen Polo GTi, Smith, Houldsworth, Mailscot, Wyedean Rally,

Top starter class RF1.6 honours were taken by Mick Smith and Calvin Houldsworth driving their 2001 #220 Volkswagen Polo GTi seem above on the Mailscot Stage.

MG ZR, Riddick, Riddick, Mailscot Wyedean Rally,

The BTRDA kick Start 1400 series is run in two classes for slightly more sophisticated cars than the Rally First vehicles, but with tightly controlled stock restricted specifications on motors and suspensions.

Winners of Class 1400 C were the Scotish pair Keith and Mairi Riddick in their 2001 #227 MG ZX.

Vauxhall Corsa, Bennett, McNeil, Blaze Bailey, Wyedean Rally,

The slightly more liberal 1400 S class was won by #201 Vauxhall Corsa crewed by David Bennett and Alistair McNeil seen above on the Blaze Bailey stage following a much better line through the final corner than the #236 RF1.4 class winning VW Polo.

Ford Fiesta ST, Cook, Jones, Mailscot, Wyedean Rally,

Group N is an internationally recognised production based category that allows only safety modifications and a free choice of electronic control unit (ECU) for the motor, the success of the category can be judged by the fact it has remained largely unchanged since it’s inception in 1982.

Winners of the Group N3 class for vehicles with motors up to 2 litres / 122 cui on Saturday were Geno Cook and Ryan Jones who drove the #66 Ford Fiesta ST seen above in the closing gloom towards the end of the final Mailscot Stage.

Mitsubishi EVO IX, Thompson, Murphy, Blaze Bailey, Wyedean Rally,

Russ Thompson and Andy Murphy won the over 2 litre / 122 cui Group N4 class driving the #10 Mitsubishi Evo IX seen on the Blaze Bailey Stage above.

Peugeot 205 GTi, Lloyd, Roberts, Mailscot, Wyedean Rally,

The top five classes, B10, B11, B12, B13 and B14 cater for a range of specialised vehicles which must retain FIA crash tested type body shells, which precludes the use of space / tube frame specials.

Winners of the up to 1600 cc / 97.6 cui B10 class were Thomas Lloyd and Sherrin Roberts in their formerly Grey 1987 #60 Peugeot 205 Gti running with non period LED fog lights.

Ford Escort Mk II, Elsmore, Harrold, Mailscot, Wyedean Rally,

Graham Elsmore and Stuart Harrold won the first three Wyedean Rallies from 1975 to 1977, the pair were also British Group One, similar to Group N, champions in 1977 and competed for works Ford, Triumph and Vauxhall teams in to the 1980’s.

They were loaned the #32 Ford Escort Mk2, seen hanging it’s tail out on the Mailscot stage above, by event sponsor Rob Weir, Graham and Stuart repaid Rob’s kindness with an up 2 litre / 122 cui class B11 victory.

Ford Escort Mk II, Phelps, Manuel, Blaze Bailey, Wyedean Rally,

Over 2 litre / 122 cui B12 class honours were won by the #61 Ford Escort Mk2 crewed by Tim Phelps and Elwyn Manuel, their car is powered by a 2.4 litre / 146 cui motor who’s origin I was not able to determine during the course of the event.

Mitsubishi EVO IX, Elsmore, Edwards, Mailscot, Wyedean Rally,

Graham Elsmore’s son Nik is a proper chip off the old block, he was 1999 BRTDA Gold Star champion and shared the #21 Mitsubishi Evo IX above with Matt Edwards to finish 5th overall and win the B13 class for vehicles over 2 litres / 122 cui with four wheel drive.

Ford Fiesta ST, Payne and Williamson, Mailscot, Wyedean Rally,

The events Press officer Andrew Haill kindly explained that despite finishing behind 2 other B14 competitors James Payne and Carl Williamson driving the #3 Ford Fiesta ST above on the Mailscot stage were awarded the top honours in class B14 because the top three overall finishers are excluded from class awards.

Ford Focus WRC 07, Bird, Davies, Blaze Bailey, Wyedean Rally,

Clear overall winner of the 40th Weir Engineering Wyedean Forest Rally with five stage wins and 3 second fastest times was 2005 ANCRO National champion Cumbrian Paul Bird and his Welsh co driver Aled Davies driving his 2007 #1 Ford Focus WRC.

Paul, the head of Paul Bird Motorsports who run PBM Moto GP and British Superbike teams, has finished 2nd twice on this rally before was thrilled to win the event at the third time of asking.

Paul finished last season with two straight rally victories, which has now become three and he will be looking to make it four on the Malcom Wilson Stages Rally on March the 7th.

If you have never seen a forest rally in person I can heartily recommend it, your fellow spectators are unfailingly friendly, kids seem to love the sport, one six year old on Saturday managed to detain his Dad on the stages for many hours beyond the original two Dad had planned for the visit and most National Forests in the UK can be visited for free, though there maybe charges for car parking, as for example the reasonable £6 being charged for Forestry parking on the Mailscot Stage.

Thanks for joining me on this “Bird’s Wyedean Win” edition of “Gettin’ a li’l psycho on tyres”, I hope you will join me again tomorrow when I’ll be looking at King Richards ’67 Plymouth Belvedere. Don’t forget to come back now !

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