The Diet Thread

[ToyotaObsession]

Originally Posted by Maxim

Explain why my tires have stayed at the same PSI without a single leak for 15k then....if it's not the molecule size it must be something.

The same reason mine have stayed at the same psi for 35K. Good tires.

[tranzformer]

Originally Posted by ToyotaObsession

The same reason mine have stayed at the same psi for 35K. Good tires.

And if the wheels weren't new wheels, the mounter did a good job scrubbing all the grit and crap off before mounting the new tires on. New tires on a dirty wheel will leak.

[Maxim]

The tires are nothing special. I've NEVER had tires hold air pressure this well. I will have to test my theory.

[ToyotaObsession]

Originally Posted by tranzformer

And if the wheels weren't new wheels, the mounter did a good job scrubbing all the grit and crap off before mounting the new tires on. New tires on a dirty wheel will leak.

The same ones that came on my car lol.

But that's why tire places have wire brushes and a wire wheel. Newer alloys have a better design than the old steelies too.

[Levi]

Originally Posted by WingsofWar

This is how id loose weight without to much sacrifice in-cabin comfort

Interior :
- FIA approved recliner racing bucket seats, not because they are light weight, but because i really like the design and materials used over many factory seats has to offer. - $1600 (new) $700-$1000 (used) ~ 40-60lbs
- sparetire/jack/tireiron/ removed - $0 ~ 15-20lbs
- Removing factory sound system and running a simpler system with less wires. $400-$800 ~ 10-15lbs
- Factory steering wheel and front airbags removed, replaced by Nardi steering wheel and quick release by WORKSBELL ~ $150-250 ~ 15lbs

Suspension:
- Light weight wheels, and a low profile tire filled with nitrogen. $1700-$1900 ~ 40lbs
- Control arms resurfaced and drilled. $0 ~ 4lbs
- Cross Drilled / Slotted Rotors for weight savings over blanks than seaching for greater braking performance $250-$300 ~ 5lbs
- Larger+Lighter brake caliper (wilwood would be my first aftermarket search if factory brakes do not satisfy) $1200 ~ 15lbs
- Coilovers (may or may not be save weight) $1200-$1600 ~ 20lbs

Chassis:
- Front and Rear Bumper supports removed. $0 ~ 20lbs
- I would remove the factory sound deadning (most manufacturers use a hardened tar that range anywhere from 40lbs-120lbs depending on the car) and replaced with a liquid base sound deadener, that virtually weighs 1/3 of tar and mat deadners. $250 ~ 30lbs
- Removing Heat shields in the underbody. $0 ~
- Removing Metal in non-flexing joints and locations of the chassis. IE tailgate, wheel well, doors, roof. $0 ~ $20-80
- Carbonfiber hood - $600 ~ 15lbs
- Carbonfiber Trunk - $400 ~ 10lbs
- Drop aluminum gas tank to be replaced with, 8 Gallon Fuel Cell + Aeromotive fuel pump + hardware. $600 ~ 40lbs

Power and Drivetrain:
- Lightweight flywheel - $200 ~ 10lbs
- CNC Lightweight Pullies (crank,alternator,tensioners,AC)- $150-300 ~ 3lbs
- Aluminum driveshaft if a steel shaft from the factory is used. Carbon maybe, but not really interested.
- Full Titanium header back exhaust. $2400 ~ 60lbs
- Odyssey lightweight battery $180 ~ 15lbs

id expect a realistic drop of 250-300lbs with all this...but optimistically 500lbs. I'm really having a hard time gauging a weight loss on the FR-S especially when its target curb weight is competitive with the current Miata at 2400lbs. Id expect to spend anywhere from $4000-$8000 for good weight savings at that level.

+ added weight

+ SCCA approved 10pt roll cage
+ Front 4pt engine brace
+ rear strut tower bar
+ Larger 3way adjustable front and rear anti-roll bar
+ Chassis Brace
+ Transmission Brace
+ Aluminum Transmission Oil cooler
+ Aluminum Radiator
+ Aluminum Oil Cooler
+ AN fitted SS oil cooling lines
+ Stiffer Tranmission and Engine Mounts
+ Aluminum Subframe bushings
+ Stage 2 twin disk Clutch w HD pressure plate
+ Carbon rear diffuser
+ Aluminum Front under tray/splitter

~speculated major weight add ons
Widebody Aero (see sig pic)

This sounds even more hard-core than the latest 911 GT3 RS 4.0 (and is).

But very right. I am going to remove from the FT-86 everything that I do not need and lighten everything I need. I'll only leave the stereo as lightweight configuration seen in some high-end sportscars (McLaren F1). Air conditioner is going to go, air bags also. I mean, there are so many old cars driving around that don't have them, also I had one, and I did not feel missing them. I'll try to build the FT-86 as closest to a bike. A bike has no a/c, stereo, air bags, sound insulation, cup holders, cigarret cinder and so. So should be a fun car.

[tranzformer]

Originally Posted by Levi

going to go, air bags also. I mean, there are so many old cars driving around that don't have them, also I had one, and I did not feel missing them.

Sounds like a Darwin award waiting to happen to me. If you are only tracking your car, sure. But why risk your life in a DD? Airbags help save lives.

[ToyotaObsession]

Originally Posted by tranzformer

Sounds like a Darwin award waiting to happen to me. If you are only tracking your car, sure. But why risk your life in a DD? Airbags help save lives.

Isn't it illegal to remove them on a street car? I know in Washington it's illegal. But I don't know if it's a federal law.

[ryun84]

Well, he's in another country, so maybe it's perfectly OK there (but I highly doubt it).

[Maxim]

Originally Posted by Levi

This sounds even more hard-core than the latest 911 GT3 RS 4.0 (and is).

But very right. I am going to remove from the FT-86 everything that I do not need and lighten everything I need. I'll only leave the stereo as lightweight configuration seen in some high-end sportscars (McLaren F1). Air conditioner is going to go, air bags also. I mean, there are so many old cars driving around that don't have them, also I had one, and I did not feel missing them. I'll try to build the FT-86 as closest to a bike. A bike has no a/c, stereo, air bags, sound insulation, cup holders, cigarret cinder and so. So should be a fun car.

Why not just buy a bike? It'll cost half as much and be WAYYY faster. And likely more useful than the car after you're done with it.

[Levi]

Bike is a different thing. I prefere 4 wheels over 2. A bike is not always faster, it is faster on straight line and on small track, but on the N-Ring for instance a car is faster.

[bofa]

Originally Posted by Levi

Bike is a different thing. I prefere 4 wheels over 2. A bike is not always faster, it is faster on straight line and on small track, but on the N-Ring for instance a car is faster.

That's not necessarily true either.

[Levi]

My old Alfa 145 Boxer didn't have airbags, and I didn't remove them, in that time airbags were optional.

[chulooz]

since when can't you remove airbags in America? Sounds like Washington is becoming communist.

[ToyotaObsession]

Originally Posted by chulooz

since when can't you remove airbags in America? Sounds like Washington is becoming communist.

Since this federal law was enacted.


http://www.nhtsa.gov/cars/rules/adap...e_ask_Ques.htm