Originally Posted by caymandive

Here is a run down on the weight reductions for me with the car having ZERO power mods. Just to note the 18" IS350 wheels that I use at the strip with drag tires weigh more than the OEM 19" IS'F rear wheels by about 1lb each and only used for consistent launches. Key word being consistent as they will not yield quicker ETs. Reason being the stall speed on the tranny is too low to give a powerful jump out of the hole so the best way to get quicker launches is by going with a lighter weight wheel/tire combo as tooth doc has and other weight reductions such as running low fluid levels (gas, windshield) and not being overweight helps too.

-7 lbs (engine covers)
-6 lbs (trunk mats)
-36 lbs (spare/jack/tools)
-26.5 lbs (lightweight battery kit)
TOTAL 75.5lbs
So not quite 100lbs but closer to 75lbs is easily achieved without stripping the car into a un-Lexus type ride.

Originally Posted by ES3

Thx for the info guys BTW, Cayman, I'm proud to be in your journal for the 2is btw (even if I am the slowest at 13.2. Can you confirm again, the reason for just the .5 second difference in your best IS350 vs. IS-F times? Is it simply because you'd done more mods to the 350, and fewer to the IS-F, besides weight reduction?

Also, I noticed you had better times in the 350 with ECT/Power mode disengaged, right? Not the case for the F, relating to Sport mode?