UNIPOWER GT

Competition GT Spec Cars - Factory 'Works' cars

All the following cars were built by the factory and constructed to a full Competition GT specification, as was developed at the time, and competed by the factory as factory 'Works' cars in both National and International competition, with continuous development. Competition specification differed from Road cars in having fully Rose-jointed suspension, anti-roll bars, Adjustable shock absorbers with ride height adjustment, Cooper 'S' disc brakes both front & rear, Adjustable brake balance bar, Laminated windscreen, Monza type fuel filler and rubber fuel bag tank, Bendix fuel pump, stripped out interior with all trim/carpeting removed and Roll-over bar protection.

Of the three cars raced by the factory, Chassis # 766.2 was the first Competition GT car built in early 1966, upon which new ideas were tested in collaboration with its customer owner that year. It was then raced both privately and by the factory from 1967 to late 1969 and survives today, 54-years later. The other two cars were specially built based on previous developments, with # UWF1007 utilising the then new carbon fibre technology to reduce weight and was fitted with specially uprated suspension. Unfortunately neither of these latter cars survived and you can read their story further below.

Chassis 766.2  -  Built January - April 1966             

Owner : Gerry Hulford

Factory International history :  Nürburgring 500kms (D) '69

                                               Barcelona 12 hrs (E) '69

The Unipower GT was never originally designed as a racing car but at the Racing Car Show in January 1966, Universal Power Drives (UPD) displayed a Prototype road-car, along with a bare chassis with its principal components installed, but in the UPD Press release before the Show launch, a Competition GT version was mentioned as being offered with no price being mentioned. One early visitor to the Unipower stand was a certain Mr. A. Emlyn. Newman, who had a Tool making company in London, and on seeing the car for the first time with his young son, thought that it would indeed make a nice race car. Conversations ensued and it was decided that UPD would build a Competition GT version for Newman, with payment and an order placed on the 18th January ‘66. Of note is that this was also the very first Unipower GT ordered from UPD and whilst later given an amended Chassis number changed from #1 to #2, it was the first chassis sold (just happening to be a Competition GT spec car) and built on the production line. (For the avoidance of doubt, its provenance has been documented and verified by the Founder of the Unipower, Ernie Unger)

 

Given that Unipower’s Val Dare-Bryan was a race-car designer, Chassis 766.2 , the design of its chassis incorporated changes necessary to be UPD's first Competition GT version. A good friend of Newman, Gorden Allen, who was making a name for his company in making crankshafts and special competition engines, prompted a unique specific requirement to be incorporated in the build. The engine bulkhead was redesigned and moved forward considerably along with its chassis tube, requiring the driver’s seat to be 'sunk' into the more forward positioned bulkhead, to make more room for one of Gorden’s engine derivatives. Most likely it is thought a 2-cyl Ford engine of 1102cc capacity with forward facing intake trumpets, mounted on a Mini gearbox would be installed, being one of a few interesting alternatives being experimented with at the time by Gorden’s company. The car was therefore 'bespoke' built with this in mind, it now being the only Unipower GT of any derivative built with this modification. The car's suspension was also totally bespoke at that time, with the emerging rose-jointed  suspension fitted to ALL suspension and moving parts like the gear-change, Cooper 'S' disc brakes front and rear with a greater brake-bias adjustment facilitated in the pedal box, as well as Anti-Roll bars fitted to the front and rear. Other upgrades were the fitment of a Monza fast fuel filler and rubber bag tank of increased capacity, full harness seat belts, Graviner Fire extinguisher and the lack of any rubber mounts securing the engine. Many of these developments were incorporated into the following Competition GT spec cars sold. The completed car was delivered to Newman on the 30th April ’66.

​Early testing at Silverstone soon after delivery, exposed some early issues, which both Ernie Unger and Val Dare-Bryan were brought in to work with its owner to resolve with often with Andrew Hedges doing the test driving. The issues with the car had been caused by trying to, whilst sold as a Competition GT car, bring such a version to market way too early before sufficient testing had been completed whilst devoting most of their efforts principally to building the road-cars, their principal objective. Time passed in further developing the car and as the intended engine to be fitted was also experiencing some delays in development, progress on 766.2 was fitted in wherever possible, as again production cars were the main priority. The car was finally installed with a conventional Mini engine of 1102cc capacity (for the then 1100cc class) with a twin-choke down-draft 46IDA Weber, necessitating the cars unique cut-out in the rear window to accommodate this. It was also during this period of latter development, that when using the MIRA (Motor Industry Research Association) testing facility near Nuneaton, England to develop the road cars, the Unipower's tendency to 'wander' down the Mile-straight, when subjected to cross-winds became apparent, being identified as a lack of down-force on the front of the car. Subsequent experimentation in September 1966 by Val Dare-Bryan using Unipower GT chassis 766.3 borrowed from its then owner, for dynamic measurements, they were surprised to discover the benefit of, for the first on any car, an Air-Dam, which to their surprise not only reduced lift but also reduced drag. (see Aerodynamic Developments). Chassis 766.2 was fitted with the new Air-Dam and underwent further testing at a local airfield as well as at Silverstone with Roy Pike driving. When experimenting with different tyres, the wheel arches were cut-away considerably to enable this (see photos), so some 'splash-mould' wide wheel arches were made to fit the standard rear clam-shell, the resultant much wider look to the car being seen as both aesthetically pleasing and functional. This 'wide' rear clam-shell development was subsequently offered to some Customer's for their cars, as the Competition GT spec cars were usually delivered with bodywork having only slightly flared wheel arches. Final Factory development of updates to Chassis 766.2 were finalised towards the end of 1966, some of which formed the basis of the following Competition GT specification, but continued to be improved upon in collaboration with its owner during early 1967.

​With the early issues now resolved to its owner's satisfaction, John E. Miles (John 'Turner' Miles) was brought in to race the car at various UK National race meetings in early 1967 (see Unipower GT in Competition) and saw improving success, fitted with the wide bodied rear clamshell that had previously been developed for the car and fitted with the Air-dam for some early races (See photo below of the car bearing race #203), but not sometimes afterwards, for reasons unknown.

Sometime in 1968, with the factory now in its early transition to U.W.F. Automative Engineering, the car was bought back by Piers Weld-Forester from Newman. The Air-dam was fitted but by now a much shallower version and with the rear clamshell changed back to a conventional rear clamshell with wide wheel arches. Piers would race this car privately at both Brands Hatch and Snetterton later that year.  

The build and development of Chassis 766.2 as a Unipower Competition GT spec car was wholly instrumental, as Val Dare-Bryan has said, in enabling UPD to then offer Competition GT spec cars to prospective customers with a greater confidence level, resulting in further Competition GT chassis being built. Whilst a second chassis was built in mid-1966, the next time a Competition GT chassis would be displayed, was Chassis 1266.9 built in December 1966 and displayed at the 1967 Racing Car Show in January. This was subsequently bought later that year and delivered to Janspeed Engineering in June 1967. (see Unipower GT in Competition).

DSC_0959.jpg
Aero testing #766.2.JPG

A cold morning testing the new front Air-dam development on Chassis 766.2 in early October 1966. Roy Pike driving

Chassis 766.2 testing Sept_Oct 1966.jpg
Piers Forester Brands Hatch 1968.jpg

766.2 with Piers Weld-Forester at

Brands Hatch July 1968

766.2  Piers Forester  approaching Druid

766.2 driven by Piers Weld-Forester at Brands Hatch in June 1968

#766.2 at Perivale UPD premises after 4t

766.2 at the UPD factory after its first race on the 4th June June '67 

At the start of the 1969 season, U.W.F. decided to enter the World Sports Car Championship and intended entering one and sometimes more cars (see Unipower GT in Competition). It was in the second half of the '69 season, when the other factory entered cars had either been badly damaged or sold, that chassis 766.2 had been raced in some UK Club races by Robert Hurst to familiarise himself with the car, as he would race the car later that year.

The following month the car was entered into the Nürburgring 500kms on the 7th September carrying race # 40, for Piers and Robert Hurst to drive. The car had some problems in scrutineering regarding side window opening size as Ernie Unger remembers, resulting in his innovative solution to cut vertical slots in the in the side windows, thereby allowing the windows to slide down on their mounting bolts, to increase the opening, in addition to the existing central round-holes, thereby satisfying the size requirement. The car had also undergone further modifications to comply with the then endurance regulations, with a rear spare wheel carrier, dummy passenger seat and the rear bodywork returned to standard shape but with aluminium extended wheel arches. The front wheel arches were further extended due to scrutineering issues. At the Nürburgring Chassis 766.2 was running alongside UWF1007 (the June Le Mans entry) that would be driven by its owner Stanley Robinson and John Blankley, however in qualifying, Piers Weld-Forester did not qualify due to an engine issue. Stanley crashed  UWF1007 in qualifying but had managed to post a qualifying time, so an engine was quickly rebuilt and installed into chassis 766.2, so that Stanley and John could start the race, resulting in a great 9th place finish.

The car then went to Barcelona for the 12hrs race the following month, with Piers Weld-Forester again driving with Robert Hurst. Two roof-mounted identification lights were fitted for this race to identify the Works car, as Jamie Agustin and Alfonso Alvarez had also entered a privateer car, but in the event did not turn up. The race went well until 9hrs into the race, when a gearbox problem retired the car.

Chassis 766.2 was then sold to a Mr. John Chubb in early 1970, who raced it in the UK following which in 1973, it was sold on to the Unipower dealers Monty & Ward Motors in Kent and then in 1974, sold on to Mr. Peter Henshall, who sprinted and hill-climbed the car eventually selling it with a broken crankshaft, to Gerry Hulford in late 1976. Still in Gerry's ownership, the car has been campaigned with considerable success in a number of events and races from 1977 up until the present day, taking many class wins and places, most notably a Championship 2nd in Class in the HSCC Atlantic Computers Championship in 1986 and 1st in Class every year, for 5-consecutive years at the famous Brighton Speed Trails between 1978-1982, a feat that has never been achieved in the 115-year history of the Speed Trials (Sometimes running on the Tyrrell F1 P34 six-wheeler front tyres). Other memorable events were its participation in the first of the races through the streets of Birmingham in 1978 and being driven in numerous Le Mans Legends events on the famous 24hrs circuit (1994, 2002, 2007) as well as the historic Reims circuit in France (2008 & 2010).

 

In 2014, the car underwent a 'sympathetic restoration' to replace worn components with wholly period correct components and refresh its aesthetics, but most importantly, retaining its historic patina denoting its long history as the first Competition GT car built, the most 'raced' factory entered car (actually starting races), having at this time the longest fully documented competition history, as well as being the last surviving Factory 'Works' entered Unipower Competition GT. Possibly more importantly, it is the car on which the discovery of the very first aerodynamic Air-Dam was developed back in Sept 1966, making this car unique in the history of motoring aero-dynamics.

Chassis 766.2 event history is chronicled in the table below:

Nurberg a.jpg

Nurburgring 500 kms 1969

Modsports Race Brands Hatch 1976.jpg
766.2  Nurburgring Sept 1969.jpg

Nurburgring 500 kms 1969

Unipower racer #766.2.png

Brands Hatch 1976

Brighton Speed Trails 1978 .jpg
1969 12Hrs Barcelona Montjuich Piers For
Forester July 68 Snetterton.jpg

Barcelona 12 hrs 1969

Piers Weld-Forester 1968

Formula Libre -Bobby Bell BRM F5000 Char

Nurburgring 500 kms 1969

Silverstone June 1979

Brighton Speed Trials 1978 

Gerry H Donington HSCC.JPG
222 - 766.2 testing at Goodwood Circuit

Donington Park 1981

216 - Brighton Speed Trials Sept 1983.jp

Brighton Speed Trials 1983 

Castle Combe Ferrari Track day.jpg

Castle Combe testing 1992

Goodwood Sprint 29th Aug 1987.jpg

Goodwood 1987

Unipower Brands Hatch 2010 1 Gerry Hulfo

Goodwood Testing

#2  Reims.jpg

Riems 2008

Legends 2002.jpg

Le Mans Legends 2002

Brands Hatch GP 2010

766.2 interior.jpg
Unipower 6.jpg
Goodwood_05_07_14_285.jpg
Unipower 3b.jpg
IMG_1787.JPG
Goodwood - Gerry Hulford 2014.jpg

Restoration and shakedown testing at Goodwood 2014

Race Results 766.2.jpg

DNA  -  Did not Arrive

DNF  -  Did not Finish

DNQ  -  Did not Qualify

DNS  -  Did not Start

 © Gerry Hulford

Chassis  UWF1XXX  (Number not issued by factory)  

Built - February 1969

Factory International history :  Le Mans 24hrs Test Day (F) '69

                                                     Targa Florio Qualifying (I) '69

   

Whist much is known of the races it competed in and its build at the factory, there was no actual factory record of its construction in supporting the incoming the new U.W.F. company owner, Piers Weld-Forester's desire to contest the World Sports Car Championship in 1969. (Note: The Owners Club has temporarily given this car the chassis UWF1XXX until any further information comes to light). The financial implications of the WSC Championship, combined with the conditions imposed on his financial backing, make it likely it was built 'off the books' with no record even of its specification, although it was a very special Competition GT version. This car was also very possibly the first car in motorsport to utilise the then very recently developed Carbon Fibre technology, in providing stiffness and rigidity to its very thin fiberglass body panels, designed to lighten the car considerably in improving its power/weight ratio.  

This car was entered first for the Sebring 12hrs in the USA in March 1969, but was not sent, probably as the Le Mans Test Day a week after was considered too important to miss. At the Le Mans Test Day, wearing #53, Weld-Forester drove the car solo and despite some high-speed handling issues, put in a credible lap-time of 5m 15.0sec given the lack of preparation and experience for such an event. This was despite losing a rear wheel on the Mulsanne Straight at very high-speed, caused by the paint finish on the new J.A.P wheels cracking and loosening the wheel nuts resulting in structural failure of the wheel.

The Targa Florio in Sicily in May '69 was its next outing, with Weld-Forester and Andrew Hedges driving where it qualified well, 4th in Class very close to the 2-ltr cars. However the car had developed a miss-fire and in trying to resolve the issue the works mechanic, Michael Cane, took the car out for a test the morning of the race start and crashed the car very heavily into a rock wall, with extensive damage extending back to the front bulkhead, so did not start the race. The miss-fire in the end turned out to have been an overfilling of oil, due to the wrong length dip-stick installed !.

The car was trailered back to the factory by the poor Michael Cane and on its return the damage was found to be so extensive that, as Nick Ouroussoff recalls, the decision was taken to write the car off. Parts were redeployed where possible, but all the car's original specialist suspension components were bought by the Club's Founder back in 1976.    

Regrettably its history makes this, the only factory entered Competition GT never to have actually competed in a race.

Unipower GT Le Mans 3 [1].png
Unipower Targa Florio 1969.jpg
Robert Hurst (Dark glaases on left) Chri
Targa Florio 1969 - Unipower 41mins 5sec
Le Mans 53.jpg
Unipower GT Le Mans 3 [1].png
1969 Le Mans Test Day.jpg
UWF1XXX Leightweight s.jpg
Targa car.jpg

 © Gerry Hulford

Chassis UWF1007  

Build completed - March 1969

Factory International history :  Le Mans 24hrs Qualifying (F) '69

                                                     Mugello (I) '69

                                                     Jyllandsring (DE) '69

This was the second of the very special carbon fibre stiffened chassis built by Specialised Mouldings for U.W.F and intended, as was Chassis UWF1XXX, to capitalise on the improved power/weight ratio that being lighter would bring. Again utilising the then very new material, carbon-fibre, applied in strands in the form of a mesh to the underside of a thin fibre-glass layup body, this provided rigidity and light-weight. Its first race would be the Le Mans 24hrs in June '69 and the factory commissioned a new more powerful engine for the event, following their experiences at the Test Day in March. The engine would come from BMC Special Tuning at Abingdon, however the specification/use never clearly got communicated in addition to its being ordered late, so, as it turned out later on BMC had supplied a Rally tuned engine !. Additional lighting had been fitted to the car in the form of a huge single light, fitted into the grill to cope with the dark on the unlit circuit, which was to work remarkably well.

Arriving at Le Mans, the car was nicknamed the 'Puce Jaune' the Yellow Flea by the French journalists, but Piers Weld-Forester, running a high final-drive (2.9:1) for the long-straight, managed to wring a fast-enough lap time for him to qualify. Piers' qualifying time in no small part assisted by getting a 'tow' down the long Mulsanne Straight by a friends GT40, no doubt also contributing to its high terminal speed of almost 45 mph !.

 

But for co-driver Stanley Robinson, the task was daunting, being overtaken on the Mulsanne straight by cars doing 70+mph more and failed to put in a qualifying time. A huge disappointment for all and so the car did not start the race.

The aftermath of the Le Mans story is that, on their return the engine was dyno tested and found to have not the 130hp they had been expecting, but just 75hp !, but it must have produced a huge amount of torque from the engine.

Next up was the GP Mugello in July with Piers Weld-Forester and Dominique Martin driving. The car performed without any issues and finished in 46th place. For the race the large front headlight had been removed and the nose-bodywork reinstated.

Piers then raced the car late in the August, driving on his own as a factory 'works' entry in the Grand Prix of Denmark, at the Jyllandsring circuit in the Group 6 Class carrying race #24. The results of the three race event over that weekend is currently unknown, although the eventual overall winner, Barrie Smith in his Chevron B8, well remembers Piers and the yellow Unipower GT during the races.  

The car had been sold in the meantime to Stanley Robinson as part of his Le Mans 24hrs drive deal, so in the September for the Nürburgring 500kms, saw UWF1007 entered along with two other cars, 766.2 and UWF1004, a road-spec car UWF1004 entered for its owner William Tuckett (DNS due to an oil leak). Unfortunately, Stanley crashed UWF1007 but had put in a qualifying time and both 766.2 and UWF1007 suffered engine problems. Chassis 766.2 went on to finish 9th driven by Stanley and his co-driver, with a hastily rebuilt engine.

Stanley Robinson with his repaired car entered the World Sports Car Championship again in 1970 as privateer’s. The Targa Florio that year was entered but they did not arrive, before running at Spa (DNF) and finishing races at the Nürburgring (in May) and Mugello (July). However for the Nürburgring event later in October ‘70, they had fitted an FVA 1600cc engine complete with Hewland gearbox along with its suspension, taken from a crashed Brabham F2. This had necessitated a dramatic change to the rear clamshell/bodywork, making it look rather strange with sweeping rear wheel arches. Qualifying 20th, it was on the warm-up lap before the start of the race, that John Blankley had a front suspension failure and crashing heavily and rolled. On its return to the UK, the damage was so severe (body and chassis written off) that the car was cannibalised for whatever parts were salvageable (the FVA engine ending up in Stanley's next race car, the SAR), and the remains scrapped.

Unipower GT Le Mans 1969 -7.jpg
Nick Ouroussoff fueling up Chassis UWF10
Le Mans 24hrs 1969 47_Unipower.jpg
Unipower 47 Le Mans 1969.JPG
Unipower #9 at Nurburgring 31st May 1970

Nurburgring 1970

John Blankley pre-Nurburgring 1000kms 31
unipower Stanley Robertson [1].jpg
Unipower GT Le Mans 1969 -7.jpg

Le Mans June 1969

UWF1007.jpg

 © Gerry Hulford