Bulvot

I'm planning on letting someone use my '87 928 (with R compound tires, turbo and 500+ whp) for the Porsche Club's "High Performance Driving Clinic":

https://pcapotomac.org/activities/dr...education/hpdc

Has anyone else taken their 928 to one of these? Any issues to be concerned with that are specific to the 928? Such as oil consumption or starvation? The morning session sounds like it will be similar to autocross speeds and dynamics. And the afternoon session sounds more like Driver's Ed on the track. I've autocrossed my 928 quite a bit before the turbo. But I've never taken it on the track except when the autocross course uses part of a track.

linderpat

As a track newb, you will not likely get it to the level where the weak points matter, especially in that program. You'll get a good taste though, and may not want to AX anymore. The more you learn and learn to get closer to the design edge, then it will matter. Plus your car is modified, so it could be subject to additional stresses that will manifest themselves at speed, but not likely at this event. The key for this is brake pads (decent track pad like Pagid 29's or EBC Yellow Stuff), and fresh brake fluid (hi-temp). Summit Point is a nice track. I do a lot of Club DE's, at Pitt Race, Watkins Glen, and Mid-Ohio. Did Summit once, parade laps after Frenzy. I track Mustangs and a 997. There are occasionally, but rarely, the odd 928.

Rob Edwards

I read it as if you're loaning your 500 hp turbocharged 928 to someone else to use at a track day. The morning session will likely be fine but I'm not sure that 200 extra horsepower, R-compounds and a stock oiling system on-track is the wisest vehicle loaner program.

Crumpler

Yes and yes.

That’s what prompted my SC conversion.
God, I don’t know where to start, lol.

So you have probably been exposed to some of the vibe already if you autocrossed.
I’m PCA so I feel like I can talk freely.
Groups will be based on experience. First timers will get classroom each morning. That’s mostly basic track rules. For some reason they showed don’t do this apex roll over videos, which really didn’t help the situation at all.
Instructor will be with you, usually until second HPDE weekend. Then you get cut loose as long as you don’t make bad choices.
You will get plenty of love in the paddock, everybody will say they always wanted one of these, etc, etc.
Then they get in a GT3, C7, or some other American 600 hp car, nannies at the ready.

The 928 is a pretty obscure racing platform, get ready. I love it’s lower power band coming out of a turn, use it to your advantage. If you have shed weight it’s going to bust it’s back end out easily but it remains very responsive when you do. I really didn’t notice any oversteer, but I’m probably not using the whole car yet.

It’s age will mean you will be wrenching between sessions, instead of sipping out of juice boxes with the trust fund babies, but that’s the life we choose right?!

Watch the oil, watch your temps especially with boost, but enjoy the hell out of it.
Dave

Bulvot

Right, I'm loaning the car, not driving it myself. I'm not a "newb", lol. And this question is not about Driver's Ed, this is about a Driving CLINIC. Very different things!

So, no one has experience with the Clinic?

Crumpler

Sorry, nope.
Sounds more family centric now that I read the link, no tech inspection.

Bulvot

That's my take on it too. I think that their focus is just to get people comfortable with how it feels to push the car a little. And to make the environment non-threatening. It sounds like you can bring pretty much any kind of vehicle. I have zero knowledge of the class beyond what's on the web page.

Since it came up, though. How do you like doing DE with your supercharger? What have you had to do to make it reliable on the track? Any gotchas that you ran into?

Bulvot

Oh, and it's 500+ rwhp, conservatively. North of 600 at the crank. That should be fun for a driver with zero performance driving experience, right?

Speedtoys

A rental car would probly teach more about how weight management affects traction..

Get the rental incidentals CC charge done up front..

dr bob

Loaning out a performance car is a like loaning out your girlfriend. May or may not look the same when it comes back, definitely won't be on the inside.

Set the rev limiter at about 4500. Might save the 2/6 rod bearings on sticky tires.

The Forgotten On

The main issue is oiling in high G long duration turns.

If it is a short autoX track it will be fine.

But these engines hate high rpms with those kinds of turns because the oil collects in the heads and then eventually uncovers the sump in a turn, then bad things happen rather quickly.

The only way to really help mitigate this is with a dry sump system.

Just tell whoever you loan the car to to keep the rpms under 4k rpms in turns (still over 90 in 3rd gear) and you should be alright.

But it is unkown how your power adders will affect this.

linderpat

woops sorry about my reading comprehension. Skimmed right past the loaner part. There is no universe where I would do that. Nevertheless, the rest of my comment stands. It doesn't sound like the kind of program where the car gets to be anywhere near the limits of where things can break, like in a real DE in an advanced group.

Bulvot

Wow. Comparing loaning a car out to being cuckolded or swinging? Suggesting that I rent a car, violate the rental agreement and, presumably, lie if something happens? You may be comfortable with that kind of outlook and vulgarity, but I'm definitely not.

Personally, I get a lot of satisfaction from enabling others to enjoy something that they might not normally, or maybe ever, get to do. Or, helping them get started in something that may turn out to be a real passion for them. So what if the car has a mechanical failure or even if it's totaled? It's just a thing. And things come and go. I'll find enjoyment in either fixing or replacing it. But the person who gets to drive the car will get much more out of the experience than they would if they had to sit on the sidelines, or if I made them drive a rental car or their daily driver.

All I asked is if anyone had personal experience or knowledge of the specific class being offered by the PCA, especially if they had taken their 928 to it.

As much as I wish that this forum/community was more welcoming and family friendly, it just isn't. This is just the latest in a string of distasteful experiences for me on this forum. I'm going to take another long break from participating.

linderpat

Hmm, a little oversensitive I'd say; I didn't see anything over the top here. Hope the rest of your sphere is less stressful.

RKD in OKC

Top up oil. Check frequently and keep topped up. Use higher gears in long turns. With the flat torque curve, no reason to rev the motor too high or keep it there. And keep it on the pavement, don't hit nuthin.
Will find the rear comes out to easy with that power and difficult to hold a 4 wheel drift. Maybe drift the rears, but not a 4 wheel drift. Ott rear drop links help a lot.

Love autocross, track is kinda boring. Have taught several autocross driving clinics.