Pics & Review of My Bilstein PSS10 Lowered Red Turbo by cannga

By diyauto
( 4 )

3 minute(s) of a 612 minute read

9-11-2013

Tire update:


Finally after 2 years and 20,000 miles (!!), my Michelin PSS are all worn out and will need to be changed. This is, by far, the longest life I have EVER had for tires on my 2 Porsches, and by a wide margin. 


Even though I should/could just replace with PSS, I will try the fabled Bridgestone RE 11 next, just for fun. Bridgestone RE 11 costs the same as PSS but is expected to last maybe 12000 miles per my tire store's opinion, or half as much as the PSS, in effect costing nearly twice as much, I think.


PSS is truly a game changer, so sticky and yet such incredible tread wear life. The only thing I didn't like about it (personal preference) is that sidewall is relative soft so car is comfortable but body rolls more.


9-13-2013


Hi, for front camber: the stock front camber maxes out at -1.2. To achieve more negative front camber, you *will* need to use either a. camber plate or b. lower control arm. VID has experience with both of these I believe. Or you could also call Ira at Tarret Web Site, very knowledgeable and helpful.

For rear camber: I've been told that stock rear camber could be adjusted to minus 2 range, up to minus 3 in fact (anyone pls correct me as needed), without any hardware change.


For street driving, IMHO -1.2/-1.6 is fine; "camber is for cornering," too much camber hurts straightline braking and acceleration. 

For the track, in general, I've seen minus 2 range both front and rear

For others reading this and wondering why negative camber is needed: The faster you are in corners, the more body rolls, and as body rolls, tires lose contact patch area (not good), there are 3 ways to counter this:

a. Increase spring stiffness

b. Increase negative camber

c. Lower the car

Body roll and weight transfer are major enemies of handling goodness (this is why weight is mother of all bad things in motorsports, weight causes increase in body roll/weight transfer). This is also the reason why the track junkies on this forum have such stiff suspension and huge negative camber in their cars. 


Regarding how much camber, sure start with what you see and see how you like it; it is an easy thing to change. There are 2 ways to see whether your camber settings are adequate for your driving:

a. Tire wear

b. Tire temperature

If outside wears more, or outside is hotter than inside, then you need more negative camber. The more advanced you are as a driver, meaning more speed in corners (corners separate the men from the boys ) , the more neg camber you are going to need. Hope my rambling is somewhat helpful.



Comments