spare tire?

bryanf89 · 12-04-2009, 11:38 PM

Im more of a weekend driver but ill go with the steel DS and yes you made me realized why they only make cracnkshafts in steel. How big of a gain will i feelwith lightweight rims with low profile tires and a 1 piece steel DS from jawsgear?

cre · 12-05-2009, 12:00 AM

It's been so long that I really can't remember how big the difference was... I know I was rather surprised by it. Reducing rotating mass has a bigger effect, pound for pound, than other weight reduction.

There is a lot you can do to lighten the MKIII:
Remove the power seats.
Replace the stock baffled muffler and resonator with free flowing resonance based muffler and resonator.
Tubular intake manifold.
Replace the heavy stock noise matting with modern noise liner.
Delete the A/C system.
Convert to a manual steering rack.
Delete the rear seats (and do NOT replace them with a wooden or reinforced fiberglass box).
Do NOT add a subwoofer.
Remove the spare tire.
Run a rebuilt W58 transmission as opposed to the R154 (if your car has a R154); This one isn't as recommended on a high power build, the W58 is not as durable... I prefer the W58 though as it is lighter and smoother.
Lightweight flywheel.
Lightweight driveshaft.
Lightweight wheels (weigh the rims and the tires.... sometimes a smaller rim with a bigger tire is lighter and sometimes it is the opposite, it depends on how they are built).
Drive with less fuel in the tank... :P
Replace the charcoal canister with a smaller unit off of a newer Toyota or other import; One from a Toyota is recommended as the plumbing will more than likely be the same and require no modification. The CC from the Tercel is about 1/2 the size and weight of that in the USDM 7M MKIII.

et cetera, et cetera.....

bryanf89 · 12-05-2009, 01:05 AM

i dont want to modify the interior or exterior look of the supra i want to keep that classic untouched look. im spoiled i need ac in the summer and the ladies love it. the ac in total weighs about 30 pounds i rather get light weight pulleys than sweat my ass off in a heat wave..the noise matting i can do because im lookin to get a new carpeting to restore the interior, rear seats are staying merly for looks or just in case sum1 is small enough to fit bak there...manual steering rack is too much of a pain in the ass(what is the weight difference?)....i got two 12in subwoofers with a 350w amp screw the weight of that i like blasting music

...im going to get a complete exhaust system eliminate manifold cover or any other cover nd go cat less...

you know where i can buy a CC from a tercel?

cre · 12-06-2009, 04:26 AM

Let's move this to another thread specifically about weight loss.. it'll make it easier to keep track of and easier for future users to locate.

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12-04-2009, 11:38 PM	#1
bryanf89 3" Exhaust Join Date: Nov 2009 Location: NYC Posts: 231	Im more of a weekend driver but ill go with the steel DS and yes you made me realized why they only make cracnkshafts in steel. How big of a gain will i feelwith lightweight rims with low profile tires and a 1 piece steel DS from jawsgear?

12-05-2009, 12:00 AM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	It's been so long that I really can't remember how big the difference was... I know I was rather surprised by it. Reducing rotating mass has a bigger effect, pound for pound, than other weight reduction. There is a lot you can do to lighten the MKIII: Remove the power seats. Replace the stock baffled muffler and resonator with free flowing resonance based muffler and resonator. Tubular intake manifold. Replace the heavy stock noise matting with modern noise liner. Delete the A/C system. Convert to a manual steering rack. Delete the rear seats (and do NOT replace them with a wooden or reinforced fiberglass box). Do NOT add a subwoofer. Remove the spare tire. Run a rebuilt W58 transmission as opposed to the R154 (if your car has a R154); This one isn't as recommended on a high power build, the W58 is not as durable... I prefer the W58 though as it is lighter and smoother. Lightweight flywheel. Lightweight driveshaft. Lightweight wheels (weigh the rims and the tires.... sometimes a smaller rim with a bigger tire is lighter and sometimes it is the opposite, it depends on how they are built). Drive with less fuel in the tank... :P Replace the charcoal canister with a smaller unit off of a newer Toyota or other import; One from a Toyota is recommended as the plumbing will more than likely be the same and require no modification. The CC from the Tercel is about 1/2 the size and weight of that in the USDM 7M MKIII. et cetera, et cetera.....

12-05-2009, 01:05 AM	#3
bryanf89 3" Exhaust Join Date: Nov 2009 Location: NYC Posts: 231	i dont want to modify the interior or exterior look of the supra i want to keep that classic untouched look. im spoiled i need ac in the summer and the ladies love it. the ac in total weighs about 30 pounds i rather get light weight pulleys than sweat my ass off in a heat wave..the noise matting i can do because im lookin to get a new carpeting to restore the interior, rear seats are staying merly for looks or just in case sum1 is small enough to fit bak there...manual steering rack is too much of a pain in the ass(what is the weight difference?)....i got two 12in subwoofers with a 350w amp screw the weight of that i like blasting music ...im going to get a complete exhaust system eliminate manifold cover or any other cover nd go cat less... you know where i can buy a CC from a tercel?

12-06-2009, 04:26 AM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Let's move this to another thread specifically about weight loss.. it'll make it easier to keep track of and easier for future users to locate.