Splitter

bennyboy · Sep 17, 2008

Still not 100% in love with my ESS-style splitter. Think I prefer the AIR style which all the Rennlisters have. Anybody have one or know where I can get one over here? This maybe similar, any experiences with???
http://www.porscheshop.co.uk/acatalog/info_5036.html

sawood12 · Sep 17, 2008

I also prefer the Air style splitter but I don't think it has the undertray. Where the ESS one wins out is that it is a good fit and retains the undertray.

There was a chap on Rennlist who was going to have some made up in PU so that they were flexible, as I believe the true AIR ones can break easily if you hit them on a kerb. Not sure where he got to with that one.

Diver944 · Sep 17, 2008

He's just about to go into production. He has pictures of the mock up on Rennlist at the moment and it looks good. Importantly it is made from a solid, flexible material like the originals that will soak up a fair amount of impact punishment. It looks like a cross between the AIR and the ESS and it has the full undertray which some racers are testing out to prove one way or another if it helps the airflow.

He's bringing one over for me to try in November [

]

Diver944 · Sep 17, 2008

Here's a picture of the first mockup. The final product will extend back to the front of the wheel arch.

appletonn · Sep 18, 2008

Ahem, here is my ESS style one, newly fitted and modelled in today's sunshine....[

]

zcacogp · Sep 18, 2008

Call me stupid, but what's the difference?

Oli.

bennyboy · Sep 18, 2008

Yeah I've been keeping an eye on that Rennlist thread and I too don't really see a great difference (of course the materials may be completely different, I just mean aesthetically). Nick, I think your car suits the splitter. I think the problem with mine is that a) my car is black and therefore the splitter looks like an extension to the bumper and b) my car is not especially low. How high is the bottom of your splitter at the front off the floor Nick? Thx

Diver944 · Sep 18, 2008

ORIGINAL: bennyboy

I too don't really see a great difference (of course the materials may be completely different,

That's the point. It's made from a material that is absorbent and flexible similar to the original batwing, whereas all the other ones are made from fibreglass.

With fibreglass you just have to touch a kerb or be hit by a decent stone and it will crack, with the new material it will remain undamaged

Big Dave · Sep 18, 2008

Nick.
Take GREAT care near kurbs m8.[

][

]....I was lucky with mine as i didnt hit any,, but it couldve been a different story...
The "ESS" style one wins every time for me... Just like the 968 TurboS version....

Fen · Sep 18, 2008

The difference? Well the ESS one fits and the other one seems to stop inexplicably 3-4 inches short of the wheelarch, which surely you have to agree makes it somewhat trousers.

I've nudged a couple of kerbs with my ESS one and it hasn't broken. It has a sharp edge on the bottom from scuffing which isn't visible when fitted, but which gave me a humdinger of a splinter when I was handling it off the car once.

Unless it's only for cosmetic reasons I really don't see the point in making something like this out of a floppy material - how on earth is it ever going to do anything useful if it bends in the air-flow?

sawood12 · Sep 18, 2008

That picture of the AIR one looks different to what I had in mind - or rather what I thought an AIR splitter was. The ESS one to me looks flat where as the AIR one (or what I thought was an AIR splitter) actually protrudes down and out (see photo). To me the AIR type splitter just looks a bit more meaty.

333pg333 · Sep 18, 2008

I think you may be getting 2 threads on Rennlist mixed up guys. There was a person who was going to make one out of Urethane but this was many months ago. The latest offering was going to be out of a stiff material or at least that's how I read it. I wondered if someone could make something that would be firm enough not to flex but also be able to wear away to it's natural level on lowered cars, but that is probably only really going to work on a 100% track car. As for the difference in the AIR ones to the ESS ones. Well the AIR is more of an air dam, whereas the ESS and variants act as the word implies, it splits the oncoming air in a different way. I think the consensus is that the AIR ones look better and the ESS ones perform better.

sawood12 · Sep 18, 2008

Well the VW Corrado has a stiff but flexible PU spoiler that was plenty stiff enough to resist oncoming airflow and would almost bend back double so PU would do the trick no probs. Problem is though it is much more difficult to manufacture something out of PU than fiber reinforced Epoxy. I.e. you're really talking injection moulding.

MarkK · Sep 18, 2008

Nick,new splitter looks ace![

]

appletonn · Sep 19, 2008

ORIGINAL: bennyboy

Nick, I think your car suits the splitter. I think the problem with mine is that a) my car is black and therefore the splitter looks like an extension to the bumper and b) my car is not especially low. How high is the bottom of your splitter at the front off the floor Nick? Thx

According to my tape measure, 13.5cm exactly [

]

I am desperately trying to avoid parking nose in to kerbs![8|]

xenon · Sep 19, 2008

With people talking about airflow and the effect that different materials may have, I have to ask if this is seriouslt anything else other than a styling addition? Will this really make any difference on the road? I'd be surprised if it did.

zcacogp · Sep 19, 2008

ORIGINAL: xenon

With people talking about airflow and the effect that different materials may have, I have to ask if this is seriouslt anything else other than a styling addition? Will this really make any difference on the road? I'd be surprised if it did.

I think I'm a little skeptical as well, although I am speaking from a position of almost complete ignorance.

Oli.

Fen · Sep 19, 2008

I don't really know as I did a lot of other stuff at the same time, and I suspect road speeds might be a bit low to really benefit, but the front of my car with the splitter was as planted as an aspidistra placed in the pocket of an innocent patsy by an overzealous officer of the law who runs a garden nursery as a sideline.

I suspect at higher speeds it does make a difference, possibly quite a big one.

333pg333 · Sep 19, 2008

ORIGINAL: Fen

I don't really know as I did a lot of other stuff at the same time, and I suspect road speeds might be a bit low to really benefit, but the front of my car with the splitter was as planted as an aspidistra placed in the pocket of an innocent patsy by an overzealous officer of the law who runs a garden nursery as a sideline.

I suspect at higher speeds it does make a difference, possibly quite a big one.

I may just need to quote you Fen. That is too funny.
Oh and I was in fact wrong. See post. This thing does flex. Not sure how much it would be affected by air pressure, but....well you make up your minds. Looks hardy if nothing else.
http://forums.rennlist.com/rennforums/showthread.php?t=455384

vitesse · Sep 19, 2008

It has to make a difference,however since the approaching air at that level now can't go straight under the car & won't easily deflect back forwards & then wrap round the bulge & then go under the car,most of it has to go to each side,I guess & go down the sides of the car,As it has to accelerate to catch up with it's mates,then it is going to get less dense so doesn't exert any stabilising force on the sides of the car,However,as it impinges on the bottom lip of the dam at some velocity as it moves to the edges,it will exert some small force downwards;-this is only that layer of air at that level.What happens because of increased turbulence,etc would only show up in windtunnel tests.
Just my thoughts to justify my son fitting one ;he now needs parking sensors-now there's an idea for a Xmas present.