Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB

Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB (https://www.ft86club.com/forums/index.php)
-   Suspension | Chassis | Brakes -- Sponsored by 949 Racing (https://www.ft86club.com/forums/forumdisplay.php?f=59)
-   -   Weight Loss Potential Thread (https://www.ft86club.com/forums/showthread.php?t=13378)

Entropy 08-01-2012 01:47 AM

Weight Loss Potential Thread
 
I was bored this evening so I put together a weight loss potential list. Some weight losses are exact and some are estimated (erred on the conservative side).

I used this thread for most of the stock weights for comparison. Other weights are from threads on this forum.

I left out most of the miscellaneous <.5lb items.

All weights are total (i.e. wheel weight reduction is all 4 corners, not per-side), and estimated weights have a "~".

Code:

Item____________________________Stock___Aftermarket___Reduction
Battery_________________________29.6____~15___________~15
SRT Header-Back Exhaust_________55.5____38.5__________17
Agency Power Header_____________20.8____12.3__________8.5
RPF1 Wheels w/22lb Tires (4)____41.4____~38___________~12
Spare Tire & Foam (remove)______25.8____0_____________25.8
Tools, Jack, Hook (remove)______5.8_____0_____________5.8
Essex Sprint BBK (AP Racing)____61.6____41.6__________20
Rear Speakers (remove)__________?_______0_____________~5
Front Seats/Brackets____________82.8____~45___________~38
Rear Seats (remove)_____________22.2____0_____________22.2
Owners Manual___________________2.8_____0_____________2.8
Perrin Crank Pulley_____________4.9_____1.2___________3.7
Flywheel (n/a yet!)_____________20.6____~12___________~8.5
CF Driveshaft (n/a yet!)________24.1____13.9__________10.2
Windshield Washer Fluid Bottle__~7______0_____________~7

This list puts us near a 200lb reduction, while still remaining 100% daily driveable. I understand there are some more serious mods for reducing weight, such as stripping the interior or gutting the AC, but for now I'm trying to keep most of the comforts of owning a brand new car.

Post up and I'll add to the list when I can! I know there is more un-needed weight that can be lost!

Sources:
http://www.ft86club.com/forums/showthread.php?t=7881
http://www.ft86club.com/forums/showp...0&postcount=11
http://www.ft86club.com/forums/showp...62&postcount=1
http://www.ft86club.com/forums/showp...63&postcount=7
http://www.ft86club.com/forums/showp...99&postcount=4
http://www.ft86club.com/forums/showp...84&postcount=1
http://www.ft86club.com/forums/showp...97&postcount=2
http://www.ft86club.com/forums/showp...67&postcount=3
http://www.ft86club.com/forums/showp...4&postcount=31
http://www.enkei.com/size_chart/RPF1.pdf
http://fecompetition.wordpress.com/
http://www.essexpartsblog.com/news/b...-shaves-10-lbs
http://www.ft86club.com/forums/showthread.php?t=18364

Captain Snooze 08-01-2012 02:28 AM

Windscreen washer fluid. approx 7 pounds.
http://fecompetition.wordpress.com/

JRitt 08-01-2012 08:54 AM

Nice post, thanks.:thumbsup:
You were definitely a bit conservative on your battery weight loss potential. We were able to knock 25 lbs. off with current lithium-ion technology, while still maintaining 100% daily utility. :D Finding that extra 10lbs. elsewhere without impacting usability will probably not be super easy.

TSLRich 08-01-2012 08:57 AM

Your calc is off on the wheels... 41-38 is 3, not 12.

ZDan 08-01-2012 09:11 AM

3x4=12

7thgear 08-01-2012 09:43 AM

do the seats have airbags in them?

if yes, does removing them affect the functionality of the airbag system?

JohnATL 08-01-2012 10:00 AM

What are the lowest pulse cranking amps and amps/hour reserve to keep this a daily driver?

Entropy 08-01-2012 10:17 AM

Quote:

Originally Posted by Captain Snooze (Post 351539)
Windscreen washer fluid. approx 7 pounds.
http://fecompetition.wordpress.com/

Didn't think about that one. That's something that I've removed or hasn't worked on my past cars. Not a problem for DD unless your driving on roads with lots of sand/grit (i.e. snowy roads that have melted!). Thanks!

Quote:

Originally Posted by JRitt (Post 351877)
Nice post, thanks.:thumbsup:
You were definitely a bit conservative on your battery weight loss potential. We were able to knock 25 lbs. off with current lithium-ion technology, while still maintaining 100% daily utility. :D Finding that extra 10lbs. elsewhere without impacting usability will probably not be super easy.

I have seen that battery and it is AMAZING! However, it's very much on the pricey side, which is why I went conservative with the number. Prices should eventually come down, though, like they do for just about all new-tech items :)

JohnATL 08-01-2012 10:26 AM

Braille has a few lightweight batteries for much less. I'm just not sure if they're any good. Anyone have any experience with them?

http://www.braillebattery.com/index....batteries/b106

7thgear 08-01-2012 10:30 AM

Quote:

Originally Posted by JohnATL (Post 351974)
What are the lowest pulse cranking amps and amps/hour reserve to keep this a daily driver?

that would depend entirely on the climate of where you live.

JohnATL 08-01-2012 10:33 AM

Quote:

Originally Posted by 7thgear (Post 352025)
that would depend entirely on the climate of where you live.

Between Hot and Stupid Hot.

7thgear 08-01-2012 10:37 AM

Quote:

Originally Posted by JohnATL (Post 352026)
Between Hot and Stupid Hot.

you can probably get away with just using a lemon and some copper wire

JohnATL 08-01-2012 10:42 AM

Quote:

Originally Posted by 7thgear (Post 352036)
you can probably get away with just using a lemon and some copper wire

I think I'll try that Braille B106 out. At 6.9lbs and $148 it's worth a shot.

SemperFi 08-01-2012 11:36 AM

Taking a dump before getting in the car 5 to 8 lbs.


All times are GMT -4. The time now is 05:45 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.


Garage vBulletin Plugins by Drive Thru Online, Inc.