Mazda Rx-8's Renisis breaks 40 FIA records. - Nissan 350Z Forum, Nissan 370Z Tech Forums
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post #1 of 12 (permalink) Old 10-22-2004, 06:52 PM Thread Starter
 
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Copied From Miata Forum
(from Mazda Press Release) It is midnight. There is complete silence on the track and the cold damp darkness has an inky-black density.

Suddenly the night is sliced open by a pair of electric blue lights that glare down the straight and head towards the start-finish mark. The silence is absolute.

The lights draw nearer now, hurtling ahead, and the stillness is finally ripped apart by the wail of a Mazda RX-8 at full chat, blasting its way through the night-time air at over 140mph as it flies down the straight and on towards the next corner.

All eyes flick immediately from the glowing red tail-lights of the swiftly disappearing car to a flickering television screen on the trackside that displays the Mazda RX-8's statistics – actual speed, lap time, lap number and average speed. The engineers, team managers and other drivers silently punch the air. Mazda is on its way to setting a new world record.

Well, not just one – make that 40 FIA-recognised world speed records. At the beginning of this month a 14-strong team of motoring journalists from 11 European countries, as well as Formula Woman champion Natasha Firman, put two Mazda RX-8s through the most gruelling of endurance tests – 24 hours of non-stop maximum speed around the 7.6mile-long banked circuit at Papenburg test facility, near Hamburg in the north of Germany.

Under the auspices of the FIA, motorsport's official governing body, the German motorsport federation DMSB, selected two Mazda RX-8s for the event. The first was a standard road car and would compete in Category B for standard production cars. The other entrant was one of the cars used in this year's successful Formula Woman all-woman race series, competing in Category A for special vehicles.

Both cars were fitted with a bespoke racing seat, a full roll cage and fire extinguishers – all mandatory requisites for competition racing – but their mechanics were left untouched. The FIA even sealed the engine and gearbox to ensure its mass-produced authenticity. The race team was also supported by tyre manufacturer Kumho which supplied dry and wet weather tyres for the event, and German fuel supplier Aral provided on-site refuelling for the pair of Mazda RX-8s.

The cars started their ordeal at 12:20pm on Saturday 3 October and, pausing only to refuel and change drivers, were pushed to their limits to create 40 new endurance records for naturally aspirated rotary-powered cars.

Under the hawk-like eyes of Shoji Tokuda, Mazda Motor Europe's chief engineer who tended to the cars' every needs throughout the 24 hour period, the pair of RX-8s racked up respective average speeds of 132.250mph in the Group A section, and 134.174mph in Group B, as well as an array of other time and distance records (see accompanying tables).

The event also underlines the bulletproof reliability of the Mazda RX-8. Each car covered a total of 3,174 miles during the 24hour period without skipping a single revolution of their award-winning RENESIS twin-rotary engine. Impressive.

The rest of the car was just as fault free – apart from a snapped boot release cable that caused mass consternation in the pits because it meant one of the cars would be unable to refuel. But a bit of inspirational handy work with a mallet and a length of new cabling soon sorted the problem.

These records better those set by Johnny Herbert, Bertrand Gachot and Volker Weidler under race conditions during the 1991 Le Mans 24-hour endurance race. Their ferocious 700bhp Mazda 787B racecar lapped the famous French circuit at an average speed of 127.1mph.

But it’s not just about sitting in a car and driving at top speed around a big bowl. Papenburg's track is more lozenge-shaped – two long straights joined by a pair of sweeping, steeply banked curves at each end.

Despite driving flat out in sixth gear to maintain maximum speed, further precious seconds can be shaved off a single lap simply by positioning the car with millimetric accuracy into the entry of the corner and slingshotting it out the exit. Now, a second here and there on a lap may not sound much, but over 415 laps, that adds up to a lot of saved time – and higher speeds.

Driver change-over times were also crucial – witness the flurry of activity when one of the cars came in to collect a new driver. The outgoing driver has to enter the pit area as quickly and safely as possible, position the car for refuelling, kill the engine, release himself from the four-point harness and then climb out. While the new driver gets strapped in, the car is refuelled, the oil level and tyre pressures are painstakingly checked, the headlamps and windscreen are cleaned and then the go paddle is flashed up and the race against time starts again. Throughout the entire race every move on either car was adjudicated by an FIA official to ensure the attempt met their stringent qualifications.

It's through the long dark night that the drivers really need to be at the top of their game – as Formula Woman ace Natasha Firman explains: "It's a lot easier when it's light because you can pick up your turning reference points and you have a sense of what's around you. At night though, all you have is what the headlamps pick up. It makes it difficult to focus on the corner ahead when you can't see it. And," she admits, "it can feel quite lonely out there because you feel really isolated from the action."

Nor does it help when it starts to rain – just after midnight the skies opened, releasing a cold and persistent downpour. A combination of lights and flags brought the cars into the pits for a quick tyre change, the Kumho engineers swiftly lowering the car's tyre pressure to reduce the chance of aquaplaning. But fortune was smiling on the Mazda team because the rain lasted no longer than an hour and the cars were soon back up to full pace.

And they maintained this v-max speed for a full 24 hours, crossing the line just after noon on Sunday 3rd October, with Shoji Tokuda enthusiastically waving the chequered flag. "There's no tougher test than this," he said. "We can't think of a better example of the reliability, strength and power of the Mazda RX-8's RENESIS engine than a round-the-clock race against time."
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post #2 of 12 (permalink) Old 10-22-2004, 07:03 PM Thread Starter
 
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It's been said that, "today's 'sports cars' are faster than yesterday's race cars." I am however shocked that the underpowered Rx-8 beat Mazda's 24hr @ Lemans winning 787B!!!?

Anyway, I know this isn't 350z content but, there have been quite a few 350z vs RX8 articles in various mags so I thought it was relevant.
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post #3 of 12 (permalink) Old 10-22-2004, 07:04 PM
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I'd like to see a list of the records they broke.

Also, how can they compare avg speeds for cars at two separate tracks. LeMans is not an oval track and it's not 100% throttle (braking and sharp turning is required) compared to the basic oval shape of the track the 8s went on.


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post #4 of 12 (permalink) Old 10-22-2004, 07:28 PM Thread Starter
 
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Quote:
Originally posted by NismoKid@Oct 22 2004, 05:04 PM
[b] I'd like to see a list of the records they broke.

Also, how can they compare avg speeds for cars at two separate tracks.* LeMans is not an oval track and it's not 100% throttle (braking and sharp turning is required) compared to the basic oval shape of the track the 8s went on.
Your point is well made and I am embarrest to say that I didn't even think about the fact that they were on different tracks. Sure does make more sense though. Anyone have any background info on this?

Picture ;)
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post #5 of 12 (permalink) Old 10-22-2004, 08:31 PM
 
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Originally posted by thrlskr@Oct 22 2004, 04:52 PM
[b] Copied From Miata Forum

The cars started their ordeal at 12:20pm on Saturday 3 October and, pausing only to refuel and change drivers, were pushed to their limits to create 40 new endurance records for naturally aspirated rotary-powered cars.
the records broken were only for rotary powered cars. so how do the times and such compare with piston engines? anyone know how the Z did with this type of testing (assuming it has gone through this testing)?
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post #6 of 12 (permalink) Old 10-25-2004, 12:35 AM
 
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Originally posted by hndumafia+Oct 22 2004, 06:31 PM-->
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<!--QuoteBegin-thrlskr
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@Oct 22 2004, 04:52 PM
[b] Copied From Miata Forum

The cars started their ordeal at 12:20pm on Saturday 3 October and, pausing only to refuel and change drivers, were pushed to their limits to create 40 new endurance records for naturally aspirated rotary-powered cars.
the records broken were only for rotary powered cars. so how do the times and such compare with piston engines? anyone know how the Z did with this type of testing (assuming it has gone through this testing)?
thats exactly what i was going to say !!

Exactly how many other "naturally aspirated rotary-powered cars" are there to compete with?

I can&#39;t even think of another manufacturer who produces rotaries !!
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post #7 of 12 (permalink) Old 11-15-2004, 08:56 PM
 
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I wonder if it broke the record for amount of times it had to fill up.
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post #8 of 12 (permalink) Old 11-16-2004, 12:29 AM
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Haha! Yeh, the RX-8 is the only in it&#39;s class. Don&#39;t think it beat anything other than it&#39;s N/A predecessor.



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post #9 of 12 (permalink) Old 11-16-2004, 12:40 AM
 
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Hey guys, i set a new world record today as well !!

Me and my Z Track (unmodified production class) set the landspeed record today for any N/A internal combustion piston engine driven by 26 yr old males who live in Perth and who are about to eat lasagne for lunch today.
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post #10 of 12 (permalink) Old 11-16-2004, 02:10 AM
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ROFL. Good one nang. I&#39;m interested in the 350z numbers on this type of test as well, though I find it impressive that any car could go 130+ for 24 straight hours.


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