Discussion in 'VAG Motorsport' started by HPR, Jun 29, 2011.
some lovely old skool pictures too.
Nothelle Motorsport Porsche NSU up.
• A little time travel: 40 years ago saw the automobile world is still very different.
• The NSU RO80 had set automotive standards, the small company has the NSU K70 modern production had frost.
• VW with the over-aged rear-engine cars had great action.
• As requested by the Board launched NSU, NSU VW took over without further ado.
• This was the course for VW, placed away from the monoculture rear car, for advanced front-wheel drive.
The story of Rolf Nothelle Motorsport.
From NSU and Audi AG, the Audi-NSU with a great future.
Many outstanding former NSU engineers were involved in the success of the later VW and Audi cars, as well as the VW Motorsports, Audi and the Audi racing rallying.
The start of Nothelle Motorsport.
An NSU TT was built from 1969 Nothelle team, Edgar Dennert + Rolf Nothelle and used at the German circuit racing championship for touring cars.
The first employee Edgar Dennert and Rolf Nothelle were practical way, the driver.
It felt like it had come, great enthusiasm, experience and engine power were very moderate. Engine technology was needed.
In motor sport, only loss on that learns faster than the competition, which was for Rolf Nothelle be a guideline.
Were racing camshafts in 1969 not to buy commercially.
The NSU racing camshafts were developed at NSU in the development department of the engineers who have self-operated racing. As had grown due to contacts, and Johan Siegfried Spiess Abbot access, but not the newcomer Rolf Nothelle.
The special parts and expertise were very guarded.
By chance, Rolf Nothelle has learned that the camshaft specialist Dr. Peter Schrick, who previously worked at the Technical University of Braunschweig, has declared its independence in Remscheid.
Sun visited Rolf Nothelle, Dr. Schrick and was one of the first customers.
Dr. Schrick developed exclusively for the Nothelle team, NSU TT, NSU TTS Racing camshafts in two different versions.
A camshaft for street tuned vehicles and vehicles NSU Slalom, which was stronger than the TTS camshaft. B903Fr the pure racing one developed by Dr. Schrick 328 camshaft.
The first racing engine was rebuilt over the winter and then it was time.
Dr. Schrick camshaft had finished and we built the first one Nothelle racing camshaft.
The NSU TT engine was then mounted to the test by Dr. Schrick and then tuned and measured.
The NSU TT engine 1240ccm 98PS had propped up on the test shaft.
Rolf Nothelle first-Dennert, and Edgar was only disappointed with 98PS.
The Zakspeed Escort and Alfa GTA 1.3Ltr. should have about 135HP. Dr. Schrick was of the opinion that we should go once the first race and he was sure that we had a different opinion then.
Edgar was immediately Dennert with the NSU TT, as fast as the Zakspeed Escort, so Dr. Schrick has been right yet.
For the price of this exclusive development cam-one could almost buy a new RO80 time. Through collaboration with Dr. Schrick Nothelle, the young team very quickly acquire technical know how for racing engine technology.
This risk has been calculated very quickly, Nothelle Motorsport has in course of time, sold a large number of camshafts and cooperation with the firm, Dr. Schrick developed until the late 80s very well. (Exclusive development of camshafts for the Audi 50, Audi 80, Golf 1, Golf GTI).
Some Heinz Tubbesing, in the 1.0Ltr. Class with his NSU TTS drove the speed has not gone by Nothelle TT-hidden.
Heinz Tubbesing had with his NSU TTS engine substantial power requirements.
Nothelle Motorsport had purchased an engine test at the company Steinmetz, supplied the test rig approximately 400 kg in the elderly back very deep Tempo Matador van (at that time very old), the driver of the test delivering was the former DKW lead foot kicker Dieter Mantzel , also a legend who was occupying at the time at Steinmetz Opel Tuning.
As a young lad with the Motorbazillus in the blood, Nothelle, Rolf-Dieter Mantzel admired at the Nurburgring when the race at 6 hours after the first round with the DKW Junior (3 cyl. 850cc 2 stroke engine?), As the total Leading from the first Came round, ahead of Mercedes 300SE, Jaguar E-Type and many others. Then, unfortunately, was mostly about the highly tuned engine on the mind.
What good old days, everything is still very straightforward.
Since the spark is jumping on that I want to do, Rolf Nothelle-thought.
The engine was mounted on the Heinz Tubbesing Nothelle new test and measurement, 74PS was the result. So you could not win a pot, Rolf Nothelle Poldi and the staff were amazed that the so Tubbesing was so fast on the road.
The man was able to help the Nothelle team. After 2 days with Nothelle new cylinder heads, camshaft, valve springs and correctly measured, the NSU TT race engine then had 85HP.
More of the budget was not Heinz Tubbesing ago. But 10PS more associated with a better torque in the NSU TTS already noticeable.
As for the thanks Rolf Nothelle team of Nothelle Tuning sticker on his car came. That was the beginning of a good friendship and successful cooperation.
B3 From next season, the race cars from Nothelle team finished in bright red.
There was enough work for the Nothelle team, so was Edgar Dennert used in operation, for this reason Rolf Nothelle Heinz Tubbesing sat in the race NSU NSU TTS and TT.
The first victory was the reward.
The engine technology and racing experience developed with the new engine test stand and a lot of creativity quickly and steadily.
The Nothelle tuning for road vehicles ran beautifully, it was the financial basis for the Nothelle motor sports activities.
In slalom racing in the classes with NSU 1000cc 1300cc + was awarded the winner's podium at the top of drivers with the most Nothelle engine power.
On the racetrack, the Nothelle racer now belonged to the absolute top riders and power Nothelle removed many victories.
The team developed by Nothelle NSU TTS engine connected for the 1973 season with a 1000cc 109hp + with a phenomenal torque, presented in the class then the absolute scale.
Oscar Berg has the engine at the company Pirburg (Solex carburetors) and measured the output could hardly believe, especially since he himself has developed a NSU TT engine and has used the 1150ccm in the class and also was champion. In three years the team had grown from Nothelle Nobody recognized the top team.
The duel between Wolfgang Wolf (Spiess) and Heinz Tubbesing was always a highlight of the racing day.
New goals. The Nothelle Motorsport team was now a confident and mature team in the winter of 1974-75 developed the new 1.1 liter Nothelle A50-Gr.2.
This marked the transition from rear-engine NSU, which was no longer in production, a new future with a modern front-wheel drive vehicles to drive Audi Urquattro prepared. For the VW Motorsport Golf 1, Golf GTI, Scirocco1, Golf2, Golf III. For the Nothelle Audi Motorsport-A50-A80 to Nothelle Audi Coupe and Audi ur-Quattro
Some of my pics i collected while doing Kamei research:
Nothelle-Coupe Kamei, development and construction in 70 days
Development and construction in 70 days!
These detailed specifications of the Nothelle-Kamei-Coupe writes Rolf Nothelle for the proposed motor sports fan, it was an extraordinary performance from the team Nothelle, the Audi Coupe in kapp 70 days to develop and build.
History of Audi Coupe, Urquattro:
The Audi Coupe Typ81 with 4 + 5 cylinder Audi engine and front wheel drive was introduced in 1980 and produced. The high-volume Audi Coupe was the basic support for the Audi ur-Quattro of 1980, in Geneva, the world public.
Audi Coupe and Urquattro, the basis for rallying and racing.
At Audi Motorsport 1980 preparations were being made and the Audi Urquattro developments for use in the World Rally Championship 1981
Audi motor sport was interested in working together Audi tuners that use the Audi coupe with front-wheel drive on the racetrack
Audi Coupe in the racing trophy.
The racing championship was made for it, 1981 was the series with Gr.5 fought race cars. The so-called silhouette formula.
Within this championship, which started with their own standings racing trophy. Which was advertised for vehicles, size 2 to 2.0 liter. Displacement. For the Audi Coupe was predestined.
Rolf Nothelle was able to build on the capabilities of the Audi coupe in this class winning car convinced.
Development and construction of the Nothelle-Kamei-Coupe.
Development and construction of the Nothelle-Kamei-Coupe in 70 days.
Commencement of work was 11 January 1981, the first race in Zolder 22nd March. So just 70 day`s
The Nothelle team had the task of showing that a 2.0ltr. 5 Cyl. Audi was able to defeat two-valve engine, in-Nothelle Coupe with front wheel drive,against the Ford and Toyota with 4-valve engines and BMW 320th
Here Rolf Nothelle describes the important phases of development and construction of the Nothelle-Kamei-Coupe in a short and interesting form.
It was provided by Nothelle team performance in the motor sport, where impossible things are usually done immediately, occupies a special position.
It was clear that had to be pulled all the stops with the optimal solutions for every detail.
The principal officer, Rolf Nothelle for frame and body and Henri Lotterer for Nothelle Audi engines have packed themselves alone can not deal with the development of the Audi Coupe, Henri Lotterer was responsible also for the many customers engines and Rolf Nothelle for the overall management of the company.
Probably on the 11th Hansi Kreische January, has made his way to pick up the bodyshell of the Coupe Audi in Ingolstadt. Of 11 January, were given all the drawings and plans to complete free.
Homologation, an important prerequisite for success.
Homologation of the major components from Audi's motor sport.
Related to the development of the Audi rally Urquattro for the World Rally Championship, the Audi motorsport engineers have done a lot of thought, which is a stable and fast racing rally device used. The Audi Coupe front wheel drive model was the technical basis for the original quattro Audi, many parts were identical. Audi's motorsport engineers were so friendly and so far as possible, let the special parts of the original quattro Audi directly homologated for the front-wheel drive model.
That was the success of the Nothelle-Kamei-Coupe one of the important prerequisites
Body and cage
At 12-13. January was the body in the Nothelle workshop, immediately became the bodyshell of the Audi Coupe edited.
Wheel arches cut larger, and other works that were necessary.
2-3 days later loaded onto the raw car and brought to the company in Matter Graben-Neudorf for the installation of the roll cage.
Audi Motorsport had existed before the development of the roll cage for the rally at the company Urquattro Matter in order.
The cage was so intrigued in the body that the body was stiffened considerably, very important for the rally Urquattro, but also for the Nothelle coupe.
Rolf Nothelle Audi wanted to bring this coupe as well a front-wheel drive with even the 5.Zyl. Could be motor from the front axle.
That was only possible with a very good suspension and a rigid body optimal engine technology as an absolute prerequisite.
For this reason, there was no alternative to this cage. The big drawback, the company Matter needed to work approximately 14 days. Transport time is not expected.
So were the pick of the body cage and completion of 70 consumes about 30 days
The next big time-eater was the elaborate finish of the Nothelle-Coupe Kamei, our "designer and art director," Lutz Fleischmann (who had a hairdressing salon), has the shape of the masking tape and painting days and nights.
The effort was worth it, the painting was unique.
Unless Rolf Nothelle recalls. the project has consumed paint for 14 days. Time to train the first Race about 25 days.
Bosch high-pressure Kugelfischer Einspritzpumpe.For the 5 cyl. Audi's engine was so far no mechanical high-pressure injection pump.
The pump was of Audi Motorsport 1980 well designed with regard to the Quattro rally.
Audi motor sport has not used these mechanical injection pump, but now we had it at our disposal.
Drawing from the intake manifold and a flat slider. Manufacture of tools and casting the intake manifold and a flat slider.
Cylinder head with maximum cross sections are always too small, not simply in a cylinder bore of 80 mm and are parallel valves.
Valve engine of the Audi engine to 9,500 U / min. Procurement of the engine camshaft according to the ideas of engine chief Henri Lotterer, max power projected to 8700-9000 U / min.
The camshaft manufacturer should not be one of the usual well-known manufacturers. (Competitive advantage).
This could be realized.
Nimonic valves and valve springs at the company Schmitthelm ordered. The company Wirtz excellent tool in Krefeld, then made a lot of special parts for the Nothelle-Kamei-Coupe.
Crankshaft lot easier. Almost all mechanical parts to produce, were manufactured at Wirtz tool.
2-disc clutch of the firm Sachs dry sump lubrication, could there back to the Audi development for the rally Urquattro used werden.Henri Lotterer it did not take that one to yourself and exhaust ports and cylinder head were milled .Motorblock selected parts of Audi Motorsport.; The parts were of course not all immediately available, but had to part long delivery times.
The fresh cast intake manifolds and flat slide did not come until the last week before the race.
Thus came, as it must, the engine was taken the Friday before the race from the test stand and installed.
Racing transmission with limited slip differential: Is thank God for Audi Motorsport delivered. A big worry less.
Brakes: Girling The company with the motor sport manager, Mr. Deuser was, as always with advice and assistance on the spot.
Front spoiler and fender flares
For the new Audi coupe was still nothing from the suppliers on the market.
So a conventional Audi Coupe dealer when purchased and brought to the company Evex in Solingen.
Mr. Hentschel has modeled with Rolf Nothelle the fender flares, with the striking rear commas (less air resistance) to the extensions and the front spoiler to the ideas of Rolf Nothelle and manufactured.
The Nothelle-Kamei-Coupe should be a conscious effort with the front of the bumper. By extending the bumper was a better aerodynamic spoiler at the end inclined to the side and above to be developed. (See the difference Kilian and Willi Bergmeister Audi Coupe, track test rally racing).
The chassis in combination with the tire has a particularly large influence on the lap time and most importantly, run over to the finish line will be the driving behavior as constant as possible. This was a special challenge for Rolf Nothelle, who is 15, January has made it all the suspension parts to draw and has been in production.
The suspension springs were manufactured at the company H & R Special springs and shock absorbers at the Sachs Company.
Completion Audi Coupe
The entire chassis, brake and Kotfflgelverbreiterungen, Nothelle front spoiler of coupe-Kamei has made the least problems in terms of delivery time.
Just as the body back from the painter was able to begin to install the chassis and brakes.
The following work quickly made progress and there were hardly any problems.
Installation of dry-sump system in the vehicle. engine oilcooler installed at the rear on the lower vehicle floor. (The first three races so used).
Amaturen installed and wiring harness manufactured and installed. Battery in the trunk and circuit breakers installed.
Pedals installed and extended to the rear. Bernd was not the lightest, so has the disadvantage, at least in part to an advantage.
Shift linkage installed. Seat installed.
Door panels made from thin fabric with a light carrier and installed.
General work on the building (trims, rubbers, lights, hood mount, glazing installed).
Ignition system with consequences
Bosch TSZ ignition system with electronic speed limiter fitted and wired. (This should still play a special role).
Fuel pumps with all hoses and catch tank fitted. Rubber fuel tank fitted with new fixtures.
The fuel pumping system was complete. duplicated, (6 pumps), a system should fail, the driver was the second Activating the system.
Water cooler for the front before the engine can make and install.
Make water pipes, as far as possible without engine, the rest is fitted when engine.
Mr. Hentschel has Evex from the extremely fast development and tooling for the front spoiler and fender flares pulled through and delivered very quickly.
The parts were made in excellent quality, so the painter was not quite as much work.
2-3 days, it was anyway.
Fender flares and front spoiler to the Rolf Nothelle-Coupe-grown, mounted wheels, the Nothelle-Kamei-Coupe was the first time on its wheels.
Exciting moment, is the height of the front spoiler and wheel arches have been calculated correctly.
Adjust the wheels. 3 mechanics replaced the engine compartment, the weight of the Nothelle Audi race engine and gearbox.
It fit everything perfectly. The vehicle was then measured immediately. Later it was no more time, it was already clear to all involved.
The designer Lutz Fleischmann made to work with the pasting of stickers and tape from the pasting dividing lines on the front grill alone has cost a couple of hours. The visible growth of the racing cars was a good motivation for the team Nothelle many overtime hours worked.
The major problem areas with regard to delivery times were, the intake manifold and the flat slide.
Two motors were installed to complete the intake manifold and the flat slide. The parts were finally in the mid-week (the week ending race date).
Henri has adjusted the intake manifold on the head and the final assembly could begin.
Injection lines made, make slide actuation. Cosworth intake manifold mounted with Alpina-holder for the extra injectors mounted on the top inlet.
The first test run
Nothelle Audi engine installed on the test, prime oil pressure, fuel vent system.
Start, the engine started and ran flawlessly. After three minutes off, everything controlled. then a new start, to warm up.
Henri made a mixture and ignition. The engine purred Nothelle wonderful, a great sound, then turn off, tighten the cylinder head.
Start the intake process for over 2 hours, more would not give the schedule. Then the exciting moment, the full throttle tuning and measurement.
The initial speed with full load, 6000 r / min, 7000, 8000, 8500, 8,800, 9,000, 9,300 rpm / he holds.
The performance curve remains stable at 8.500-8.800U/min and bends down slowly. Min 240HP at 8500-8800 U /. Fantastic. The effort has paid off.
Henri Lotterer and the Nothelle team have built a very good piece of engine technology, it also visually a delight.
Thanks for translating and proof reading it yourself Hugo.
Knew I had seen 'Dennert' somewhere:
Hugo has passed me some old articles on the car so i will try to get them added in here at some point.
More goodies for you i had today....
"VW & Porsche Magazine May / June 1982"
FIA legal alloy cage ^ ^ ^
Engine Type L4
Capacity (cc) 1596
Power (at revs) 162 HP/8000
Torque 173 Nm/5000
Fuel system 2 Solex 48ADDH
Body type 3-door hatchback
Shock absorbers Bilstein
Engine position front
Front track (mm)
Rear track (mm)
Weight (kg) 760
Number of gears 4
Fuel tank size (litres) 60
Front brake type disc
Rear brake type drums
Front rims 9 x 13
Rear rims 9 x 13
Maximum speed (kph) 210
Audi 80 GTE
All taken from the wonderful Nothelle website at http://www.nothelle.com
I wish the restoration section for the audi had bigger pictures, i did ask about the rear of the lorry pic in a bigger format but it got lost in translation i think....
larger pic of one earlier in thread:
First Belgian Historic race "BRAVO" yesterday in Spa, no Audi Coup Kamei. Just my black Oettinger.
Just for the fun, training times on the wet:
see trophe des Fagnes, BHC, training, PDF sheet
http://www.nothelle.com/rolf-nothelle-motorsport broken link from 1st page?
This is written from the same press release which I got forwarded from p1 of the dedicated thread - Golf+ were on the recipient list
Separate names with a comma.