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Old 03-16-2010, 12:55 PM
  #46  
RKD in OKC
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On a wet skid pad the rear of my car is hyper sensitive to throttle.

Here is our local February Autocross, it was a bit wet and lots of spinning.

Wet Autocross
Old 03-16-2010, 01:36 PM
  #47  
cobalt
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Originally Posted by RKD in OKC
On a wet skid pad the rear of my car is hyper sensitive to throttle.

Here is our local February Autocross, it was a bit wet and lots of spinning.

Wet Autocross
Interesting setup. I agree the GTS becomes very sensitive in the wet but that is what learning control is all about. Most newcomers don't want to chew up a set of tires on a skid pad and watering it down helps prevent that. We circle around the skid pad around 15 rotations per direction, first to learn throttle control and second to push the car to spin. Most people have no idea how far their car can be pushed and nothing better than a controlled environment.
Old 03-16-2010, 02:05 PM
  #48  
mark kibort
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Its all about knowing the limits of the car. We (all the SCCA ITE folks, scot too) drove this race in the rain at Laguna. I dont think I had more than a wiggle one or two times during the 30min race, and I was on race tires, with NO treads, and ended up almost beating the Supercharged S2000, as the track dried (and he was on rains) it started raining again, and i finished behind, but 2nd overall. the throttle has to be smooth, so does the steering inputs. we got up to near 110mph down the main straight and it was very scary on slicks. brakiing was done all straight to a speed the car could corner at,without sliding or wiggling. exits were done when the car was straight and power was applied just under the slip. That ratcheting of the gas and steering is good for drifting, but not for driving fast around any course.
Now, if that 944 guy was in our race, I wouldnt have even shown up for the weekend! . He should go back to parking lot driving to figure out how to drive!

Originally Posted by cobalt
Interesting setup. I agree the GTS becomes very sensitive in the wet but that is what learning control is all about. Most newcomers don't want to chew up a set of tires on a skid pad and watering it down helps prevent that. We circle around the skid pad around 15 rotations per direction, first to learn throttle control and second to push the car to spin. Most people have no idea how far their car can be pushed and nothing better than a controlled environment.
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Last edited by mark kibort; 03-16-2010 at 02:28 PM.
Old 03-16-2010, 02:45 PM
  #49  
RKD in OKC
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In the two wet events we've had I was 5 seconds faster than anyone else. That is a LOT for an autocross.

I told them I was faster because my 928 was so heavy the wet didn't matter
Old 03-16-2010, 04:37 PM
  #50  
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Cool school. Is there anything like this around indiana?
Old 03-16-2010, 05:56 PM
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Funny! Hey, at Sears point, i got my Axx handed to me by the field, but at laguna the 928 dominated. I have to imagine that the point and shoot track favors the wide powerful car. at sears, there were just too many turns and only one real short straight.

Originally Posted by RKD in OKC
In the two wet events we've had I was 5 seconds faster than anyone else. That is a LOT for an autocross.

I told them I was faster because my 928 was so heavy the wet didn't matter
Old 03-16-2010, 06:23 PM
  #52  
ew928
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So how does the PSD rear diff handle in the wet different from the LSD rear of the earlier cars in the wet. Does the PSD magic with all the extra g-sensors make much of a difference.
Old 03-16-2010, 06:27 PM
  #53  
Bertrand Daoust
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Originally Posted by ew928
So how does the PSD rear diff handle in the wet different from the LSD rear of the earlier cars in the wet. Does the PSD magic with all the extra g-sensors make much of a difference.
Good question!
Old 03-21-2010, 01:40 PM
  #54  
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Originally Posted by ew928
So how does the PSD rear diff handle in the wet different from the LSD rear of the earlier cars in the wet. Does the PSD magic with all the extra g-sensors make much of a difference.
Good question (again...)
Old 03-21-2010, 02:48 PM
  #55  
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Okay. I have to know exactly what I need to do to get my S4 to sound like your GTS. I have done the RMB but it just doesn't sound "right". You GTS has more of a burble to it unless that is what mine sounds like on the outside through a microphone. Hard to tell not in person.
I have left the resonators on and the factory cats.

Thanks
Old 03-21-2010, 03:23 PM
  #56  
pcar928fan
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Porsche_Willy,

Join your local Porsche Club of America. I am SURE they have Auto-X and High Speed Drivers Education courses you will be able to pay to attend. Most all should included EXCELLENT person instruction too!

More than a few on this forum have been instructing DE's for years with MANY different groups. Not only PCA has High Speed (or Performance if you prefer) DE events. There are MANY organizations that do track events. Most all offer FULL instruction for at least your first few events. In fact, they REQUIRE IT more often than not. They are not just going to say, "these are the flags you might see, now go out and have fun and don't crash." They are going to have a VERY SKILLED driver in your passenger seat talking you all the way around the course.

This is a MUST DO for EVERY higher performance car driver in my opinion! Not only do you NEED to do this, you need to do it SEVERAL times! That way you can learn just how poor a driver you REALLY ARE so you will KNOW how to improve and that you are not better than everyone else on the road or track. It will make you a MUCH BETTER and safer street driver.
Old 03-21-2010, 05:37 PM
  #57  
RKD in OKC
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I can't really comment on a 928 with LSD versus PSD. Both my 928 GT and GTS have had working PSDs. Compared to my 951 with LSD the 928 can be driven smoother with PSD. With PSD in the wet, if I want to rotate the car I can blip the throttle to spin the rear a bit to get 100% lock up, then slide it through the rest of the corner. That's what I was doing in the video. In straight line acceleration with PSD versus LSD it is easier to do throttle pedal traction control to keep the tires at the edge of spinning with the PSD, that is what I mean by smoother.

I got the deep sound with an X-pipe, race cats, resonators, and RMB. I was pretty happy with factory cats and RMB, but Roger, Sean, and the rest of the Dallas gang got me drunk and intimidated me into going back with the x-pipe since the clutch repair was so cheap. I opted for the race cats because I feel they add tone, and not because I am a tree hugger or that it is required in Oklahoma.

At our regular autocrosses we have great instructors that ride with novices until the instructor feels the novice is doing things right and is being safe. The idea of our Driver Tech is that at an autocross you really only get 8 laps per event to improve your skills. At Driver Tech, you get to practice each skill building exercise until you get tired of it.
Old 03-21-2010, 05:44 PM
  #58  
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Looked like the 944 guy was having fun...even if he was a bit out of control more of the time than less! If you can do the slide around thing w/o hitting stuff and you are enjoying it and not endangering anyone else, I just say HAVE FUN! KNOW, however, that you are not driving the way you SHOULD be driving...just having fun!
Old 03-22-2010, 08:16 AM
  #59  
jeff spahn
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James your Blue 82 needs a silver stripe
Old 03-22-2010, 09:56 AM
  #60  
Mike Frye
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Originally Posted by pcar928fan
Looked like the 944 guy was having fun...even if he was a bit out of control more of the time than less! If you can do the slide around thing w/o hitting stuff and you are enjoying it and not endangering anyone else, I just say HAVE FUN! KNOW, however, that you are not driving the way you SHOULD be driving...just having fun!
I imagine that's the way I'll look the first time out, but I bet I'll have the goofiest grin when I'm done as well.

If no one else minds that I'm not taking the 'right' line or I power out of a turn so fast that I'll inevitably miss the next two, then I'm going to have a blast!


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