Nader Fotouhi

With Documenting 993 weight

Last weekend I took the 95 993 that my wife and I bought two years ago from the previous owner that also raced it with PCA to my first race. The current configuration of the car which is in accordance within the current PCA stock class rules is in the attached pdf.

With a driver weight of >225# (about 55# over my ideal body weight) plus driver’s safety gear, ¾ tank of gas (car was full at the start), about 20 lbs of ice/water in the cool shirt cooler, and carrying around 65# of ballast, car was 3125#, which is 45# under the PCA minimum weight of 3170# when I was sent to scale at the end of a 30 minute Sprint race. This means that I need to run over 100# of ballast for sprint races and at least 150# for 90 minute endure races.

Based on my experience last weekend, I would like to petition the PCA Club Racing Rule Committee to reduce the current published weight of 993 by 150#. The lower minimum weight can be achieved by adjusting the amount of gas or using quantity of ballast that can be safely secured inside the car.

If you race a 993 or have a track prepared 993 for DE, or have ever put your street car on a scale, please post the weight and configuration of your 993. If you do not want to provide the information publically, please send me a PM.

Current published weight for 993 models that includes 150# for the driver are: 95 993 NB – 3170#, 96-98 993 NB – 3214#, 96-98 WB 3324.
Thanks

Bill Verburg

maybe post in the Racing Forum

I've always felt that the so called stock weight for 993s was too high for them to be competitive

Nader Fotouhi

Bill,

I am hoping that most 993 racers come here, and I also want to avoid the static that comes from posting on racing forum, for now.

I am not worried about competative, as much as I am a reasonably achievable weight. I doubt typical 993 NB from factory weighs 3020#.

Mister C

I will gladly share the weight of my 993 but where can I get it weighed in the Washington DC area?

Mark in Baltimore

Go to the upcoming Summit Point club race, and PCA national will let you weigh it on their scales.

Nader Fotouhi

+1. And then stop and say hello.

race911

Yep. Though Chis Cervelli could manhandle a stock classer around Laguna quicker than I've ever gone with the faux RS..............

Check out this thread from three years ago, with 200lbs. of driver weight + half tank of fuel replicated: https://rennlist.com/forums/showthre...ferrerid=21505

Deviations from stock that make any meaningful difference on weight are: AC removal, lightweight carpet/no rear seats/race seats/roll bar, wheels.

uscarrera

I run 110 lbs of ballast in my 993 to reach PCA required weight which works in Sprint races in 90 minute Enduro I need to do my 5 minute pit stop near end of race and depending on number of yellow laps we did during race I need to add 5 or 10 gallons of fuel to make the required weight after the race. When I built car I was very careful to not removed any item that would require adding back in more ballast so I have full interior, AC compressor, radio, etc. As for partitioning PCA for weight reduction I am not sure how well that would go as all the classes are based on the lb/hp formula to arrive at the 11.40 or 11.74 listed for G class the weight is fixed.
Rich

Mister C

Thanks for the suggestion Mark. I would like to watch the action and hope I can fit it into my schedule.


If I make it I will stop by. By the way Nader, you were right about the Liberty gas station in Charles Town, WVA. I checked the last time I was at Summit Point and the only no-ethanol gas is 87 octane. No ethanol free 92 or 93 octane. Bummer.

Nader Fotouhi

Thanks Ken. Mine is a more stripped, but I would say within 50-100lbs of the weight you show .

Hi Rich,

Thanks for sharing. All I want to get across is that may be the stock 993 weight is listed on the heavy side and for a stock class car prepared according to the current rules, there is no way to achieve that weight safely. As I mentioned, in theroy, an average driver in a 993 need at least 150lbs of ballast. After all, the proposed rule wants to add 200 lbs to RSA in G by stating that its weight was low balled.

jscott82

As much as id like to pull a bunch of ballast out of the car, I think they have the weights right...

I'm 80lbs over the ideal driver (I'm big boned) and carry and additional 220lbs of ballast.

When I add up what i removed from the car (317 lbs) , its pretty much a match.

qty Item Weight out total Weight In Net
1 sunroof frame 15 15 0 15
1 panel 12 12 3 9
1 motor 1 1 0 1
1 misc 5 5 0 5
Sunroof Subtotal 30

1 ac 12 12 0 12
1 lines 10 10 0 10
AC Subtotal 22

1 kneepad 10 10 0 10
1 carpet 40 40 15 25
1 heat 10 10 0 10
1 radio 3 3 0 3
1 rear deck 10 10 0 10
2 doorpanel 10 20 2 18
2 rear arm rest 3 6 0 6
2 seat back 5 10 0 10
2 seats 50 100 30 70
Interior Subtotal 162

2 Muffler 15 30 1 29
1 Cat 24 24 12 12
Exhaust Subtotal 41

1 wing 15 15 8 7

4 Wheels/Tires 35 140 100 40
1 clutch 30 30 15 15

Grand Total 317

jscott82

Oh wait... You are right...

I didn't include the cage, which adds in at least another 100+ lbs.

Nader Fotouhi

^
Nice car. Your mods seem similar to mine. I just do not want to add 200# of ballast for safety reasons. Of course, in my current physical conditioning, I am not likley to drive for 90 minutes, so maybe a moot point from that stand point. However, if I ever get in shape, then I need 200# for sprints.

Martin S.

I agree, the PCA weight is too high. My car prepped for the track weighs 2875, 1/8 tank of gas. Were I to weigh my ideal 190 Lb weight, the car would be at 3065. This is about right in my opinion. I don't want to have to add ballast to make weight....presently, I am carrying about 60 Lbs of personal body fat ballast. I have yet to run a PCA Club Race..run with Porsche Owners Club (SoCal) in GT5, a weight to HP class.

Have removed:
Stock seats
Stock suspension
Door panels
CD player
Radio & all speakers
Rear heater blower motor
Carpeting
Stock battery
cat
spare tire
passenger seat...needs to go back in for PCA Club Racing
movable rear spoiler
Factory wheels

Have added:
993 RS carpet kit
993 RS 3.8 wing, probably have to go to Aerokit 1B tail with PCA
Getty design bumper cover...will be going back to stock with Taco Holder splitters
Cobra Halo Racing seat
2 1/2 Lb Fire Extinguisher
Shock tower connection bar
Complete ERP rear suspension links
Tarrett Engineering Drop Links
24 Qt. Cool Shirt Cooler
MCS suspension
RS bars
LWF
Optima battery
Fabspeed X pipe and cat bypass pipes
Ruf secondary oil cooler
Heigo cage with welded in front cross bar
FVD Brake cooling kit
O-Z Allegritta 18" wheels
Trunk carpeting

Have kept
Air Conditioning
All factory glass
Cruise Control
Stock Muffler
Sun roof

I am sure there is more....but nothing major

nile13

Let me understand here. JScott took out 317 lbs from what allegedly is a 3,100 car. That makes it, say 2,800 lbs. I see in his calculation minus 50 lbs for the seats, so I assume that some other seat(s) were added? Cage is plus 100 lbs, so we are at 2,900. Plus 225 for the driver. Plus 20 for water plus 65 for ballast. If my math is correct, that's about 3210 lbs.

So, Nader, where did you manage to unscrew another 80-100 lbs compared to JScott? I don't see much opportunity other than replacing body panels with fiberglass and glass with Lexan.

PS. I am clueless about P-car weight loss. But my Miata is on severe diet. And I also bite off my nails and pick my nose before races (usually in that order).