View Full Version : Homolog
Why did they change the rules and when? I.e. real bad news for us car nuts as it has reduced the amount of Rally monsters available as new road cars!
Do you mean for the Group B supercars?? e.g Audi Quattro, 6R4, RS200 etc etc??
Can't recall extactually when that was but the reason was because of pedestrians getting killed I think?? They were just too quick it became dangerous.
I'm sure someone slightly older than me will be abler to expand on that! [img]http://www.turbosport.co.uk/images/smilies/laugh.gif [img]http://www.turbosport.co.uk/images/smilies/wink.gif [img]http://www.turbosport.co.uk/images/smilies/wink.gif
Hi Kieron
Nah i mean recently, like you Peugeot no longer have to have a road going version of their 206 WRC etc
OK, then I don't know! Sorry. [img]http://www.turbosport.co.uk/images/smilies/sad.gif
I did hear something about the Peugeot bumpers the other day. Because their car was too short they put extended bumpers onto a limited run of the GTi's they were selling for it to qualify so maybe some of the regs do still stand??
This is the one with the big bumpers, made for a short time.
http://members.lycos.co.uk/hot_hatches_uk/206_grandtourisme_1.jpg
Some other guff, about the regs
PARIS - The 2001 evolution of the Peugeot 206 WRC is poised to make its debut in Cyprus next weekend.
Michel Nandan, Peugeot Sport's Chief Engineer, reveals all about the recently homologated car?s main features, areas of improvement and the gains the team expects the new machine to deliver.
Q/ According to the WRC regulations, what parts of the car require FIA homologation?
A/ As far as the chassis is concerned, you need to homologate modifications to areas such as the wheel arches, the transmission tunnel, as well as body parts such as the bumpers and bonnet.
Moving on to the engine, it is only possible to revise the crankshaft, conrods, flywheel, inlet and exhaust manifolds, turbo and intercoolers within the overall framework of a new homologation.
When you submit a dossier for an existing model to the FIA, as was the case with the 2001-version of the 206, not everything is systematically revised, although you do have to produce at least 20-off of all new components. This is totally coherent because you are more or less certain to use them from one year to the next.
Clearly, when you submit a new car for homologation, you also have a long list of parts that don't necessarily require annual homologation but which have to be modified to adapt them to the new overall package; parts such as the fuel tank, fuel lines, brackets, mountings, radiators, etc.
Q/ How does WRC homologation work?
A/ Cars are submitted for homologation once per calendar year, which means there are not necessarily twelve full months between each homologation. If we wanted to, we could submit a new version in January 2002.
There are a number of homologation meetings every year. In general, they take place at the start of the month and you have to send your dossier in at least three weeks in advance. We sent ours to the FIA in March, which meant we could have homologated our new car in April or at a later date. Meanwhile, homologation requests for so-called 'variant options' can be submitted every three months.
In compliance with Group A regulations, this concerns such areas as suspensions and transmission parts for example. One last subtlety: you are only allowed to homologate one new gearbox every twelve months.
Q/ How long does it take for a new version of a car to pass from the drawing board to full homologation?
A/ Obviously, the first thing to do is establish a retro-planning, although the actual timescale can vary of course according to the scale of the changes you're looking to introduce and also according to what you discover as the project progresses.
In the case of the 2001-specification 206 WRC, for example, the basic brief was not particularly complex but many of the modifications led to others and, at the end of the day, we ended up revising quite a large number of components.
Some engineering work can also prove more delicate than expected while the lead times of suppliers of certain prototype parts can force you to put back the dates of scheduled test sessions. Occasionally, you may also decide to add a certain number of detail modifications to the initial programme.
It is the combination of all these parameters that render the timescale elastic. For argument's sake, let's say two to three months of development, followed by assembly and testing of the first prototype the following month, then fine-tuning and finalisation of the project. I suppose six months isn't far wide of the mark. But research and development never stops of course. The minute our 2001 dossier was submitted, the brain of our development engineer, Julien Loisy, was already working on the next evolution!
Q/ What is new on the 2001-specification 206 WRC?
A/ We have improved the engine cooling with additional intakes in the bonnet and front bumper and revised airflow under the bonnet; air entry and extraction have been optimised following wind tunnel tests.
We have profited from the new homologation to adapt certain components with a view to improving accessibility inside the engine compartment. We have also shed some weight and fine-tuned the actual weight split, an area that was already very satisfactory on the 2000 version.
As far as the engine is concerned, we have homologated different manifolds and turbos to improve driveability at low revs. These are the main areas.
Q/ There has also been talk of a new five-speed gearbox?
A/ We have effectively been working for some time on a five-speed box that allows us to house bigger gears with the same available space without, in theory, detracting from engine performance. This box is already homologated since Harri Rovanpera ran it in Argentina.
Our drivers now have a choice between a five-speed and a six-speed gearbox. Meanwhile, the 2001 car features a new strengthened angular member between the engine and the gearbox.
Q/ The regulations dictate that once a new car has been homologated, you cannot revert to the former model. Is that a problem?
A/ Let's say it's best to get your basic technical options right first time since u-turns are effectively out of the question. Having said that, you don't just launch into a programme like this without first having done your homework. In principle, a new car is always going to be a step forward.
I wondered what this post was about with the title
'' HOMO LOG '' [img]http://www.turbosport.co.uk/images/smilies/wink.gif [img]http://www.turbosport.co.uk/images/smilies/laugh.gif [img]http://www.turbosport.co.uk/images/smilies/wink.gif [img]http://www.turbosport.co.uk/images/smilies/laugh.gif
Sorry, i'll go back to school now..... [img]http://www.turbosport.co.uk/images/smilies/grin.gif [img]http://www.turbosport.co.uk/images/smilies/grin.gif
Good thread by the way, lads. I was going to ask a similar question sometime as was not sure about the situation anymore. Cheers for the information.
Gomp.
Bascially the FIA (gits) relaxed the rules so you no longer had to have x many road going production models of the WRC cars, bit of a pisser as that 206 would make a cracking road car, oh and not forgeting the Focus WRC.
Without the old regs we would never have seen the 3Door and all the following cossies! Delta Integrales, UR Quatros etc. are all in the same boat too.
I reckon the manufacturers started to baulk at the idea of not being able to venture into new experimental stuff as the cost of producing a production model would have been prohibitive.
I think it's a shame because it's all bit like silhouette racing now instead of seeing cars that you would on the road. Not complaining as it's still a great sporting spectacle but reckon a bit closer connection to production examples would be a good thing.
[img]http://www.turbosport.co.uk/images/smilies/smile.gif
The Racing Puma is pretty close to the Super 1600 rally Puma, it even has the same brakes [img]http://www.turbosport.co.uk/images/smilies/laugh.gif
Aye, good point. I meant in the WRC. [img]http://www.turbosport.co.uk/images/smilies/moon.gif [img]http://www.turbosport.co.uk/images/smilies/grin.gif
I watch a fair bit of the super 1600 championship and it's ace. I think half the attraction is that the cars are pretty much modified everyday road vehicles. If I ever win the lottery thats the sport I'll be taking up. Get a wee car and thrash the crap out of it round a rally, what could be more fun. [img]http://www.turbosport.co.uk/images/smilies/grin.gif
</font><blockquote><font class="small">In reply to:</font><hr />
what could be more fun
[/QUOTE]
Me, Buffy, + Britney, in a naked baby oil wrestling match [img]http://www.turbosport.co.uk/images/smilies/drool.gif [img]http://www.turbosport.co.uk/images/smilies/grin.gif
[img]http://www.turbosport.co.uk/images/smilies/jester.gif [img]http://www.turbosport.co.uk/images/smilies/jester.gif [img]http://www.turbosport.co.uk/images/smilies/jester.gif
Funny, I pictured a similar scene when I wrote that!! [img]http://www.turbosport.co.uk/images/smilies/jester.gif
I was told that the 206 WRC rep was available in France but I don't know if that's true and I ain't seen any pics.
I don't know why the big manufacturers don't make rally reps.They look so much cooler with fat arches and sitting lower on bigger rims.Take the Citroen for instance.It looks the nuts,and might help shift a few units if you could buy something similar in the showroom.The Hyundai looks sexy too.
Subaru only sell the quantity of road cars they do today because of the success they had with the Legacy and then obviously the Impreza.Until then all they really sold in any quantity was pickups to farmers.Maybe the others should take a leaf out of their book.
Spot on Guy, there was a mass decline in standard escort sale when they stopped production of the Escy Cos, so it obviously works with sale of satndard models as you say with the Scooby's so why don't they do it? I know the development costs are large but allot of that has been done already on the Rally cars classic example is the Mitsi Evo.
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