2010 Autocross Rule proposals

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Re: 2010 Autocross Rule proposals

Postby Jad on Mon Jun 29, 2009 1:13 pm

I completely agree with Kim, but it is a lot more popular to blame the car or the rules, than the driver :surr: .

If you feel your car is uncompetitive, let one of the top drivers take it for 2-3 laps and see if their time isn't right with the top time in the class. It is a very eye opening experience the first time you watch someone else really drive your car. :bowdown:

The rules are important, but no one is ever happy with the rules (look at F1, CART/IRL, etc), so just drive as well as you can and see what happens, but don't worry too much about class finish. You know when you really drive well and deserve to win :beerchug:
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Re: 2010 Autocross Rule proposals

Postby crossthreaded on Mon Jun 29, 2009 2:23 pm

Kim Crosser wrote:
crossthreaded wrote:Maybe it's me that's in the wrong club, expecting to AX my bone-stock daily driver.

No - a "bone-stock" car can be VERY competitive in an AX. :rockon:


Hi Kim,

Thanks for the encouraging words.  :bowdown:

The thing is, my car is “bone stock,” but I’m bumped to the stock class, so I compete against cars with 8 points of aftermarket goodies, including R-compound tires. So no, my “bone stock” car is not competitive. That’s what I meant by “all the people who want to stay in street stock but are bumped into stock or higher for one reason or another.”

I have what amounts to a factory 2 point “performance enhancement.” The street stock class allows for two points, yet my 2 points bump me into the stock class. In my case, I have a factory optional suspension. It came from Porsche, it’s a standard US option, it’s “as delivered from the factory,” and according to the current list of mods, it’s worth 2 points. A lot of people have this option. I don’t understand why some 2 point aftermarket mods are allowed in street stock, while a 2 point factory installed suspension “enhancement” bumps you into stock. This is why I’m :banghead:

(I also have some factory installed performance reducers (e.g. additional weight). That should even out the advantage I get from the suspension!!! :surr: ).

A number of people have mentioned that increasing the points for tires will bump them to the next class. Well, that’s exactly what’s happened to me. My factory optional suspension has bumped me to the next class. What’s the difference? Again: :banghead:

Can someone give me the history behind this? “ttweed” mentioned that you used to have 4 points of mods to begin with, and no exclusion list. Were R-compound tires allowed in that class? Why were things changed? Why are so many things excluded from street stock? Things like aftermarket exhausts and other 2 point suspension improvements? A number of 2 point mods are excluded from street stock, while others are allowed. Why even mention things like “any tire that is not street legal” or “modifications that require 100+ octane fuel?” :shock:

I took a few minutes and looked at all the new proposals again. I wonder if the root issue is all the things that bump people from street stock to stock? A number of proposals seem to address that single issue. Should we go back to the class structure that “ttweed” mentioned? :roll:

In looking at the proposals, a number of them would solve this issue, but number 18 makes the most sense to me. It allows for the same 2 points that the current rules do (e.g. rule stability), doesn't increase points for tires, and does not have that exclusion list. You can have any single 2 point mod, not just a selective few, whether factory or aftermarket, and stay in street stock.

What do the forum members think of 18?
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Re: 2010 Autocross Rule proposals

Postby gulf911 on Mon Jun 29, 2009 5:04 pm

Jad wrote:It is a very eye opening experience the first time you watch someone else really drive your car. :bowdown:


And now I know why Jad won't let me drive his car... :shock: :lol:
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Re: 2010 Autocross Rule proposals

Postby ttweed on Tue Jun 30, 2009 8:02 am

crossthreaded wrote: I also have some factory installed performance reducers (e.g. additional weight). That should even out the advantage I get from the suspension!!! :surr: ).
Funny you should mention this. I once proposed a rule to allow point deductions for being over minimum weight. It was not well-received. Almost all "stock" Porsches are over the published factory weight spec. I also happen to think that the weight rule should be "with driver" as used in other series, but that idea has never been accepted.

Can someone give me the history behind this? “ttweed” mentioned that you used to have 4 points of mods to begin with, and no exclusion list. Were R-compound tires allowed in that class? Why were things changed? Why are so many things excluded from street stock?
There have been many rule changes over the years, but the "Showroom Stock" SS-class change with the 2 points and exclusion list was instituted prior to the last hosting of the Parade by SDR, in an effort to bring Zone 8 rules more into compliance with the PCRs and prepare local competitors for the Parade autox. Maybe it was 2005 (the memory is the first thing to go, they say, and I don't recall the exact year)? You can find the PCRs on the PCA.ORG site under the "Document Library" heading if you're interested.

Our older definition of SS included 4 points for mods with no exclusion list and tires of 100 treadwear or higher. There were R-compound tires available with a 100 UTQG (the Toyo RA-1 still is, for instance). The fastest ones have always been 40-80 UTQG, but this is a "relative" spec, not absolute, as it compares wear ratings within a manufacturer's line, and not against other manufacturer's products. The minimum UTQG was raised to 140 in our rules at one point to eliminate this loophole, and I happen to think that today's 140-200 high performance tires are probably faster than the 100 UTQG R-compound tires in the old days. There was even a penalty added of one point for tires up to 140 at one time, because they were getting so good after the growth of the SCCA Street Tire classes spurred development by various manufacturers.

I think we went a little overboard with a blanket adoption of the exclusions, as "Showroom Stock classes are available for a limited number of recently manufactured automobiles" according to the PCRs. This means that anything older than a 964 has no SS class at the Parade anyway, and is immediately progressed to a Production class. We corrected this in a recent year by allowing the older cars (classes A-J) to have a more liberal SS class on street tires, with 6 points of mods, a less strict exclusion list, and 140 UTQG tires. The newer cars (classes K-Q) have not followed suit, conforming still to the more strict PCRs. What I hear you (and others) expressing is dissatisfaction with that. Maybe it's time for a change. There certainly are enough proposals on the table to do something about it. I just don't want to see whatever is adopted for the SS class to impact the progressed classes negatively, where I play, and things are interconnected in many ways in the class structure.

What do the forum members think of 18?

The problem with this proposal is that it seeks to create a number of new classes by splitting existing classes and adding new ones for the highly optioned cars (factory widebodies, Cayman S, dividing front and rear engined cars in K, etc.) This creates an administrative problem for event organizers, and there are only so many letters in the alphabet. Don't forget that each year new models must be added. We could have a separate class for each Porsche model and option and the playing field would be level, but there would be few cars per class and a LOT of trophies at the end of the year. :D
I think it needs some rethinking and refinement to eliminate the new class creation component to be approved. Combining it with my previous suggestion to progress the factory widebodies to the next higher SS class might be a start, as well as abandoning the suggestions to split out the Cayman S and break K into two classes, etc. Perhaps combining that idea for the widebodies along with a proposal to make the K-Q SS classes more similar to the A-J SS class rules would solve some of the problems, be simpler to understand and implement, and thus more likely to be approved.

Just my $0.02,
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Re: 2010 Autocross Rule proposals

Postby tb911 on Thu Jul 09, 2009 9:33 am

crossthreaded wrote: Could you fix this? Thanks!



I'll fix it today

Sorry about that

Also, new stuff is going up -- please keep the comments coming!

http://zone8.pca.org/rules_prop.php
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Re: 2010 Autocross Rule proposals

Postby kleggo on Mon Nov 23, 2009 5:11 pm

hmmmmmmmmm no other comments since July?
That's strange, i'm sure that i posted something on this thread more recently than that.

back to the top please.

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Re: 2010 Autocross Rule proposals

Postby ttweed on Tue Nov 24, 2009 7:53 am

kleggo wrote:hmmmmmmmmm no other comments since July? That's strange, i'm sure that i posted something on this thread more recently than that.

There is a newer thread on the 2010 rule changes started by Tom Brown to discuss the proposals that actually went forward from the initial submissions here:
http://forum.pcasdr.org/forum/viewtopic.php?f=1&t=3566

You posted on that one on Oct. 14th.

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Re: 2010 Autocross Rule proposals

Postby kleggo on Sun Nov 29, 2009 7:43 pm

ttweed wrote:
kleggo wrote:hmmmmmmmmm no other comments since July? That's strange, i'm sure that i posted something on this thread more recently than that.

There is a newer thread on the 2010 rule changes started by Tom Brown to discuss the proposals that actually went forward from the initial submissions here:
http://forum.pcasdr.org/forum/viewtopic.php?f=1&t=3566

You posted on that one on Oct. 14th.

TT


Thanks Mr. Tweed.
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