Yiling Cao

I have my 991 c2s for a few days now, I have some driving technique question I would like to ask:

Say I'm driving 60mhp (100kph) and in front of me is a 90 degree street corner, to achieve shortest overall time, should I brake hard and decrease to the correct speed and turn into corner or Should I carry some speed into the corner and brake while turning?


and what is the best timing for accelerating?

Powereng

I would recommend some driving classes, these are very informative and generally taught by professions who can assess your abilities and help you improve your skills in a controlled environment.

mattyf

The proper technique is called trail braking. Threshold braking (braking right at the limit before ABS kicks in) is applied before entering the turn. This puts more weight on the front tires allowing them to grip better as you turn. Brakes are released gently and progressively as the steering angle increases until you are at full steering angle and no brakes. Once apexed you gently increase throttle as you decrease steering angle and straighten out. At zero steering angle you should be back on full throttle.

But this is not the sort of thing to be practicing on the street.

Plastique999

^to add to that, brake pedal depression should be firm at first and a smooth but progressive release. A lot of novice drivers do the opposite - they brake slowly at first and then hard at the end of their braking zone.

As far as getting back on throttle in a turn, coaches have given me the analogy of an imaginary "string" linking the steering wheel to the the throttle pedal.
The steering wheel unwinds simultaneously and proportionally as you depress the throttle. Timed such that you are WOT when the steering wheel is straight.
Obviously, Faster you can get on throttle in a turn means faster exit speed.
The old adage "slow in, fast out" will eventually become "fast in, fast out."

chuck911

oooh! My favorite subject! But as much fun as it would be to write a book on this, the truth is you need to go here http://www.pca.org/Regions/RegionDir....aspx?Zone=All find your region and look for events called Driver Skills, Driver Ed or Autocross. They'll teach you everything.

LexVan

All excellent advice already given to you above.

I'd just stress that you make sure to get all your braking and gear changes done prior to any steering inputs in the corner, until you start working with a PCA driving instructor and properly learn some of these performance driving techniques in the safety of a track environment.

Then you can apply this good driving skill on the street to a lesser extent in a safe way.

Yiling Cao

Thanks guys I am new to my car, and the car makes me so wanna become a better driver. I will not practise extreme speed on streets, but to be safe and use the correct way to drive everyday.

K_Espiritu

Wrong section.

Jack F

You resurrected a 6 year old thread.....just sayin. 😉

ajcjr

Greetings, I have been looking into champ car endurance racing as my next form of motorsports I want to take part in. I’d like to run this series , get comfortable in a sedan , traffic etc and move on to one of the more competitive series.

In the past I raced my own karts and spec racer ford. I have rented a car here and there. So my question is how do you get comfortable in a car you share and only have one weekend to learn. I’ll be honest I can tell when someone messes w my daily driver settings, now I have to jump in a car I’m not familiar with, someone else was driving, in most cases probably won’t see it before I get to track. With all the great info out there and iracing im less worries about learning a track than I am the car.

thanks in advance for any help.

chuckbdc

On the street, do your braking before the turn. That way you will be sure to be able to place the car in the correct place with the steering wheel after the turn. You wont risk being in the wrong lane (assuming you are turning into a two way street) or into the far curb exiting the turn, or having losing control or the rear due to oversteer.

On the track, where the road is one way (barring others spinning) you could have other safe choices- depending on the width of the road, entering the turn at the end of a straightaway or getting onto one, where carrying speed matters among other factors.

MingusDew

lol the zombie thread resurrection that goes on here is seriously wild, I’ve never seen another forum where it happens so often. Most forums are just “what springs/intake/exhaust/PPF should I get?” Posted over and over. So I guess it’s nice seeing a forum with its own personality quirks.

RP4S911

^ lol Very true.


Oh and just in case the OP has still been waiting 8yrs for this...

desmotesta

What applies on track isnt what works best on street.

Provided I have the room, space and familiar road, I like to trail brake as much as I can as it help rotate these rear engine cars. Following the age old track rules can make these cars understeer like hell on streets

911T4ME

Why wouldn't the track technique for a (rear engine) Porsche with more weight in rear involve trail braking to get more weight in front and help the car rotate through a turn? In my experience with front and rear engine, rear wheel drive cars, trail braking is helpful to get quicker turn in and car rotation - on street and on the track. It's more noticeable on the track more me due to higher turn speeds. Maybe I'm missing your point...