About to shed weight - (CAR and DRIVER)
09-02-2008, 09:32 PM
#61
After a long day in the heat, turning on the AC when I drive home makes that weight worth every single pound. The earlier cars AC was marginal at best. The 993 system actually works. And unless you taking out the front HVAC system, I bet the Compressor, Lines, Receiver/Dryer and Evaporator weighs closer to 40-45# as Tom points out..
w/o carpets or pads, cat, engine compartment pad
next up for the chopping block rear interior pads and upholstery
09-02-2008, 09:58 PM
#62
Rennlist Member
Bill, do you mind sharing what you did to lighten the bumper reinforcements and how much weight you shed? Did you simply fab lighter reinforcements?
09-02-2008, 10:27 PM
#64
Rennlist Member
I used to think the same thing. Then I talked to a lot of 911 track junkies who have been DE'ing 911's for decades. And none of them have ever seen or heard of an incident of cabin intrusion due to rollover. My friend Kurt M (those who visit the racing forum will recognize the name) recommended using just a harness bar. I'll tempt fate.
09-02-2008, 11:00 PM
#65
Rennlist Member
09-02-2008, 11:27 PM
#66
Rennlist Member
Late to the party. Although I feel much better with a roll bar as opposed to a harness bar, I am of the opinion that 911's are remarkably stout vehicles. I have seen quite a few rollovers on the track that were sans rollbars and have always marveled at how intact the passenger areas remained.
Also, I know it's a trade off, but running a 6-pt cage improves chassis stiffness. If you're running sticky tires, good suspension, reducing twist in the car is probably worth 100lbs, no?
09-02-2008, 11:27 PM
#67
Rennlist Member
Bill - I know you've done it a million times, but can you repost pics of your swisscheese impact bumpers? I'm going to embark on doing the same thing. Thx 
.
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09-03-2008, 12:08 AM
#69
Addicted Specialist
Rennlist Member
Rennlist Member
Not exactly. But for comparison, compressor, condenser, drier, all hoses and hardware, I think I got about 60 lbs out of my 82SC. That might give you some frame of reference.
Edward
Edward
09-03-2008, 10:39 AM
#70
Three Wheelin'
After a long day in the heat, turning on the AC when I drive home makes that weight worth every single pound. The earlier cars AC was marginal at best. The 993 system actually works. And unless you taking out the front HVAC system, I bet the Compressor, Lines, Receiver/Dryer and Evaporator weighs closer to 40-45# as Tom points out..
I agree working on driving skill is most important, as my skills now are upper-intermediate I would like to further improve and maximize potential. After doing a lot of indoor karting, my 993 feels like a school bus.
