Quote:
Originally Posted by Burg Boxster
I am a track guy and, politely, you missed the answer entirely. BTW most AX courses, below extreme expert level, rarely if ever see speeds in excess of ~ 60MPH and even then only in very short bursts. So, AX is likely slower than a continuous curvy road you're driving. Nor did I suggest deploying below 55MPH or at slow speeds would make the vehicle unstable.
Simply this is a matter of physics. There's a world of difference b/w driving 35MPH vs 85MPH; at 35MPH, the rear spoiler, due to LACK of air flow/volume, will provide ZERO benefit. Where as being fully deployed at 85MPH would start to provide some benefit. But, and it's been greatly debated countless times, is said benefit spoiling of the airflow or using the airflow to increase downforce? They are NOT the same 
Anecdotally, I once had a 997 C2S with front aerokit but not accompanying rear aerokit/wing. Porsche advised the rear aerokit wing was necessary for stability purposes, but I ignored their 'requirement'. Everything was fine, stability-wise, on the vehicle at speeds up to ~ 125MPH. Up from there the back end would get wiggly... not so noticeable on an incline where the g-forces are compressing the car into the pavement. However, a fast downhill like the back straight of Mid-Ohio got 'exciting' on more than a few occasions...
Regardless, correct, I'm in the No leave it in auto-mode column. But if you feel deploying provides benefit then by all means deploy the spoiler when and wherever you feel it will help as having confidence in your equipment does aid you in being a better driver.
I'd be curious to know the answer to this if you can loop back after testing:
If you manually deploy then exceed 72MPH and subsequently reduce speed back below 55MPH, will the spoiler automatically retract?
Good luck  |
Yeah use the auto criss as an example, I get the idea fast more wind more down force.
So my question simply is the any extra down force at lower speeds or not, which we still have no definative answer to that question. If it creates down force when its deployed must have some at 40 not as much as 85 of course.
So is there a point where it has no affect? What if you are going 50 and dring into a 35 mph head wind? Lol
Note in Owners manual says manual mode is active until its manually retracted.
Retracts about 50 Mph according to manual. Comments in the manual seem more concerned that it is deployed over 70 for stability. And referes to it as a spoiler, to be affective it has to build a high pressure point to force the car down.
Curious to here more input