[trax]

By now everybody and his brother has seen Colonel's weight reduction thread over at LS1Tech. Mike's (94Bird's) thread over at LS1.com was a big hit also.

In another week or two I'll be doing a bunch of weight reduction to the car and getting it ready for a 6-point rollbar over the summer. So I decided to pull up Mike's thread and assemble the several posts into a checklist to use on my own car. It's a great list of weight reduction specific for cars that still have to be able to turn (IMG:http://www.frrax.com/rrforum/style_emoticons/default/smile.gif)

Mike's list (as well as Colonel's) can be accessed as a formatted Excel spreadsheet here.

CODE

     Mike Taylor's (94Bird's) weight reduction list      

     Interior
           
49     Driver's Seat
43     Pass. Seat
19     Front bumper
2      Hatch Release Panel
42     Rear Seat and Belts
5      Steering Wheel Airbag
2      Foglights
15.5   Pass. Airbag
5.5    Rear Speakers & Panel
2.5    Rear Sound Insulation
0.5    Airbag mod. center console
0.5    Amp
4.5    Ctr. Speakers
4      Radio
3      Upper trim panel insul
3      Center console insul
-27    Corbeau Clubmans
-10    Seat Mounts
4      Cruise Control Mod
31.5   Carpet
26     T-tops
0.5    Front cap airbag sensor
5.5    Center console
14     Window
9.5    Interior Door Panel
8.5    Window Motor, Support Levers, etc
3      Door Speaker
4      Wiring, Screws, Etc
7.5    Door bar (ea)
2.5    Glovebox
28     Spare Tire
6      Jack


     Exterior
           
9      AC Condenser
15.5   AC Compressor
29     HVAC Box, blower motor, heater core, assorted hoses, etc
4      Headlights
19     Front bumper
2      Horns
7      Windshield washer reservoir (full)
3.5    Air pump
17.5   Stock battery in exchange for Hawker
42     Front lexan


463    Total

Any additions / changes?

[LT4Firehawk]

They mentioned it wasn't from an increase in mass, but an increase in rotational inertia. 12 wheel HP does seem quite high to me. I don't believe they checked drag. All they showed was the guys scratching their heads until they called another guy who theorized that must be what it is.

Supposedly it's from the increased rotational mass of the larger diameter brake rotors on the drive wheels (fronts in the case of the RSX) and from the increased rotational mass of larger wheels (to clear the brakes). This along with the fact that the stock RSX-S will just about put you through the windshield is why we aren't looking at upgrading the brakes on the wife's RSX-S. Considering that the stock RSX-S already has close to 12" front rotors, I don't really see the point of upgrading unless you are doing a LOT of track time. Heck, I have no problems with the 12" LS1 setup on my Firehawk, and it weighs a good 500lbs more.