Boxster Championship for 2010

[924racer]

It's just been announced that the Porscheracing Drivers Association who currently run the 924's under the BRSCC will have a new championship for Boxsters for 2010. Looks like early days at the moment but expect cars to be fairly standard and from speaking to the co-ordinator (Andy davies) it looks like there could be classes for the 2.5 and 3.2 models with a standard kit available to prepare the cars. There's an invitation class with the 924's this years allowing people to have somewhere to race/test new cars. Should be a good championship i think, especially with 2.5 cars available for about £5k these days. what do we think?


http://www.porscheracingdrivers.co.uk/

matt

[RobM77]

Sounds like a fantastic idea I hope it's a success!

[andy97]

Sounds like an excellent idea to me, particularly when early 2.5 cars can be picke up for about £6K.

However, I understand that that the Boxster engines are prone to oil surge & starvation problem & there is a breather pipe in to the sump which also gets submerged when cornering hard & somehow sucks oil into the inlet. All resulting in engine problems. Sorry to be non technical (I'm not sure I understood the explanation myself!). The sump is difficult to baffle effectively, apparently. All second hand info, sorry, but Neil Harvey is the man to speak to apparently as he built & ran the car that Marcus Holden raced in the PCGB Club championship.

It would probably be worth talking to them. Does anyone know if they look in on here? I wonder if any of the guys racing in the Spec Boxstrer series in the USA have had similar problems or developed a fix?

I hope that someone has developed a solution and that can be included in the kit of parts.

[924racer]

andy97 said:

I hope that someone has developed a solution and that can be included in the kit of parts.

http://www.bkauto.com/porsche/r9095.php

[clubracing]

andy97 said:

... there is a breather pipe in to the sump which also gets submerged when cornering hard & somehow sucks oil into the inlet.

This problem is not caused by oil surge. The boxster like most modern cars has a positive crankcase ventilation system where vapour from the breather is sucked into the inlet manifold to reduce emissons. There is an Air Oil Seperator which is supposed to stop the oil being sucked in with the vapour but these can fail on early cars (porsche redesigned it for later cars) so the oil and vapour are no longer seperated, causing problems. Its fixed by just replacing the AOS but I expect it could be removed all together for racing and the crankcase breather just direced to a catch tank, like is done with most race cars.

[porrec]

It should be confirmed within the next few days which exact years/models of Boxster will be eligable. Anyone who wishes to make enquiries should contact Andy Davies - the Porsche 924 Championship coordinator via the Porscheracingdriversassociation (PDA) website, or alternatively come along to a 924 race meeting during this season.

It should make for a cracking series as there have already been lots of people making enquiries about building cars to race. I've even had a few people phoning me to ask if I have any suitable donor cars!

[andy97]

clubracing said:

andy97 said:

... there is a breather pipe in to the sump which also gets submerged when cornering hard & somehow sucks oil into the inlet.

This problem is not caused by oil surge. The boxster like most modern cars has a positive crankcase ventilation system where vapour from the breather is sucked into the inlet manifold to reduce emissons. There is an Air Oil Seperator which is supposed to stop the oil being sucked in with the vapour but these can fail on early cars (porsche redesigned it for later cars) so the oil and vapour are no longer seperated, causing problems. Its fixed by just replacing the AOS but I expect it could be removed all together for racing and the crankcase breather just direced to a catch tank, like is done with most race cars.

In that case why wasn't this done for the Boxster used in the Porsche Club series?

[clubracing]

andy97 said:

clubracing said:

andy97 said:

... there is a breather pipe in to the sump which also gets submerged when cornering hard & somehow sucks oil into the inlet.

This problem is not caused by oil surge. The boxster like most modern cars has a positive crankcase ventilation system where vapour from the breather is sucked into the inlet manifold to reduce emissons. There is an Air Oil Seperator which is supposed to stop the oil being sucked in with the vapour but these can fail on early cars (porsche redesigned it for later cars) so the oil and vapour are no longer seperated, causing problems. Its fixed by just replacing the AOS but I expect it could be removed all together for racing and the crankcase breather just direced to a catch tank, like is done with most race cars.

In that case why wasn't this done for the Boxster used in the Porsche Club series?

I was just suggesting that it would be possible, if it was removed you'd then have to block the holes in the inlet manifold and crankcase that were no longer used.
Anyway, if it failed it would be simpler to retro-fit one of the redesigned parts which are said to be very reliable. Its a relatively inexpensive part and not a big job to do.

[thunderbelmont]

BRSCC?

It's doomed already.

[924racer]

a new section on the PDA forum has been opened up for the boxster series

http://www.porscheracingdrivers.co.uk/forum/defaul...

a new (separate) website should follow soon

[jellison]

thunderbelmont said:

BRSCC?

It's doomed already.

Haha - fine till the get bent!

Too many series now anyway in hard times - will be pitiful grids - anything less than 20 looks Crap when lined up!

[924racer]

I think the BRSCC are looking to Boxsters to help them out next season, so they're giving the series a lot of backing - there should be demonstration laps at upcoming meetings, cars on show in the paddock etc. It seems to be working as there has been A LOT of interest already, with people wanting to build cars.

Edited by 924racer on Tuesday 28th April 12:44

Edited by 924racer on Friday 8th May 02:07

[924racer]

New website for the race series has just gone live

http://www.rennsportracing.com/#

[GC8]

They appear to be overly-concerned with the vehicles appearance; dont they? No bare aluminium sheet; vehicles excluded if they arent still pretty enough mid-season.....

9.2 seems to be spurious too: 'standard traction control systems if fitted must remain fuly functional...'

[mat205125]

What would be a guestimate for a build cost from a standard doner 2.5 car?

What wheels and tyres would these cars be running in the series? - Tyres are a massive proportion of the running budget if you want to run at the sharp end of a competetive one make class/series.

[924racer]

At the moment the series is only going to be for the 'S' model, but i would imagine build costs to be virtually the same as for a 2.5 other than for the initial purchase of a car, where it's around a £3K difference.

I believe the planned tyre is Toyo R888's with maximum wheel size 9x17.

[924racer]

GC8 said:

They appear to be overly-concerned with the vehicles appearance; dont they? No bare aluminium sheet; vehicles excluded if they arent still pretty enough mid-season.....

We have this rule in the 924's, although i don't think it's ever actually been enforced. The aim is to not have people turning up with damaged cars from a previous race which look terrible, giving the series a poor image.

[clubracing]

GC8 said:

9.2 seems to be spurious too: 'Standard traction control systems if fitted must remain fully functional.'

Traction control was an optional extra on the earlier Boxster S, so that means that if you have a car with traction control (and don't remove it) you can't change the way it functions. The standard system would be a hinderence in the dry and only a slight advantage in the wet because the standard system is very cautious so would n't be faster than a well driven car without traction control. So no drivers would be disadvantaged by having a car without it.
If you were allowed to change the way it worked so that the point at which it cut in was higher or the reduction in power going to the wheels was less it would be a massive advantage.

[GC8]

I see: slightly ambiguous wording I think, but I see why now.

[GC8]

I presume now that youre saying that vehicles originally supplied with TC may remove it; and that if they elect to retain it, that it must function in the way that Porsche intended?