Page 1 of 1

Rear spoiler question

Posted: Mon Jan 25, 2016 2:51 pm
by andy97
I notice that the regs allow the rear spoiler to be either fixed up or fixed down, but I don't see any examples of the spoiler being in the up position in any of the photos.

Does anyone run with the spoiler up, and if not, why not please?

Thanks

Andy

Re: Rear spoiler question

Posted: Mon Jan 25, 2016 3:06 pm
by Chris Valentine
From comments I've heard in previous seasons, we're not going fast enough for long enough for it to be effective. Unless they just meant me.

Chris.

Re: Rear spoiler question

Posted: Tue Jan 26, 2016 4:36 pm
by andy97
Interesting, Chris. You wonder why Porsche bothered with at all then, because if you are not going fast enough to be effective on track you surely aren't on the road.

I'd have thought it was some use in the Craner Curves, and some of the corners at Silverstone or Thruxton etc

Re: Rear spoiler question

Posted: Tue Jan 26, 2016 5:07 pm
by Chris Valentine
andy97 wrote:Interesting, Chris. You wonder why Porsche bothered with at all then, because if you are not going fast enough to be effective on track you surely aren't on the road.


I don't know about that - you know what these nutty Germans are like on their Autobahns.

Re: Rear spoiler question

Posted: Tue Jan 26, 2016 5:10 pm
by andy97
Guess I was thinking of uk only.

I wonder if anyone has done a back to back comparison of lap times on a number of tracks?

Re: Rear spoiler question

Posted: Wed Jan 27, 2016 11:27 pm
by John Broadley
I've often wodered why Porsche went to the trouble of fitting a spoiler to 924S and 944 when it wasn't on the 924. Porsche don't usually add bits and pieces unless there's a good reason. A bit of Googling found this: "Externally, the 924S didn’t look much different from the car that had been phased out (924), although it did carry a rear spoiler from the discontinued 924 Turbo that lowered drag from 0.36 to 0.33". In theory then a bit less drag so better on long straights. I'd imagine it adds a bit of rear downforce too which should add stability in fast corners.
John B

Re: Rear spoiler question

Posted: Fri Jan 29, 2016 12:19 am
by andy97
And interestingly, the "Spec Boxster" racers in the USA seem to all have the spoiler up in the photos I have seen.

Re: Rear spoiler question

Posted: Mon Feb 05, 2018 4:00 pm
by Wide Boy Rich
andy97 wrote:And interestingly, the "Spec Boxster" racers in the USA seem to all have the spoiler up in the photos I have seen.



Andy I've tried it in the up position and creates quite a bit of under-steer on my car, unsure what others think, we rarely get above 130mph on circuit and if we do it would only be for a very short time, until your stamping on the brakes ready to throw into a corner,

although my car is was set up for a bit more under-steer than others I've driven, i didn't like it being to twitchy on the back end,

all down to your own preference i guess, give it a try you will soon find out what works best for you, i'm sure you will change ride heights etc, to see what works best with you,