Post exact weights of weight reduction you have done!
May 20, 2013, 06:42 AM
#1817
For the drag guys...
Stock wheel with 255/40/17 KDW :............44lb...(x4 = 176lb)
FD RX7 wheel with Hoosier 26x9.5-16":.....32lb...(x4 = 128lb)..48lb savings over stock.
15x7 Slipstream with Hoosier 26x9.5-15":.29lb...(x4 = 116lb)..60lb savings over stock.
Stock wheel with 255/40/17 KDW :............44lb...(x4 = 176lb)
FD RX7 wheel with Hoosier 26x9.5-16":.....32lb...(x4 = 128lb)..48lb savings over stock.
15x7 Slipstream with Hoosier 26x9.5-15":.29lb...(x4 = 116lb)..60lb savings over stock.
Jun 17, 2013, 10:22 AM
#1821
I recently shaved some weight with a lightweight battery replacement too. I previously had a Odyssey PC680 battery with a Muse Motorsports aluminum tray/mounting bracket. That was 16.23 pounds:
Odyssey PC680 battery (w/brass battery terminals): 14.33 lb.
Muse Motorsports small battery tray: 1.90 lb.
Since the PC680 was on its last legs after about four years of use, and having killed it dead at least 30 to 40 times, I decided to try a lithium-ferrous-phosphate motorcycle battery as I've seen some local racers and autocrossers using them. I considered Shorai and Ballistic; I went with Ballistic since the dimensions of their "Evo2" 12-cell battery (part # 100-012) were workable, and their warranty is a little better than Shorai—both companies advertise a "3-year warranty," but Shorai only gives you a six-month exchange if the battery is defective, prorated replacement cost after that; Ballistic offers a one-year exchange, prorated after 12 months.
Ballistic claims the 100-012 weighs 2.44 lb:
http://www.ballisticparts.com/produc...ies/12cell.php
- but they lie: mine weighed 2.75 pounds. Yeah, that's only a little over 1/4 pound difference, but when consider how little the battery weighs overall, that's a misrepresentation of 13%!
With the brass battery terminal posts from the old setup, the Ballistic 12-cell battery weighs just a hair over 3 lb:
The mounting plate I made out of 1/4"-thick ABS plastic... aluminum would have been better, but I didn't have any handy. I need to replace the plastic zipties with something more reliable, like stainless steel ties:
So, total weight: 3.25 pounds. Almost a 13-POUND weight savings over the PC680 mini battery + the CNCed aluminum mounting bracket.
In the car... and yes, it starts my car (2.3L stroker, 10.5:1 C/R) just fine. This Ballistic 100-012 battery currently sells for $167 shipped on amazon.com or on eBay (same vendor, MC Powersports):
Odyssey PC680 battery (w/brass battery terminals): 14.33 lb.
Muse Motorsports small battery tray: 1.90 lb.
Since the PC680 was on its last legs after about four years of use, and having killed it dead at least 30 to 40 times, I decided to try a lithium-ferrous-phosphate motorcycle battery as I've seen some local racers and autocrossers using them. I considered Shorai and Ballistic; I went with Ballistic since the dimensions of their "Evo2" 12-cell battery (part # 100-012) were workable, and their warranty is a little better than Shorai—both companies advertise a "3-year warranty," but Shorai only gives you a six-month exchange if the battery is defective, prorated replacement cost after that; Ballistic offers a one-year exchange, prorated after 12 months.
Ballistic claims the 100-012 weighs 2.44 lb:
http://www.ballisticparts.com/produc...ies/12cell.php
- but they lie: mine weighed 2.75 pounds. Yeah, that's only a little over 1/4 pound difference, but when consider how little the battery weighs overall, that's a misrepresentation of 13%!
With the brass battery terminal posts from the old setup, the Ballistic 12-cell battery weighs just a hair over 3 lb:
The mounting plate I made out of 1/4"-thick ABS plastic... aluminum would have been better, but I didn't have any handy. I need to replace the plastic zipties with something more reliable, like stainless steel ties:
So, total weight: 3.25 pounds. Almost a 13-POUND weight savings over the PC680 mini battery + the CNCed aluminum mounting bracket.
In the car... and yes, it starts my car (2.3L stroker, 10.5:1 C/R) just fine. This Ballistic 100-012 battery currently sells for $167 shipped on amazon.com or on eBay (same vendor, MC Powersports):
Last edited by EGbeater; Jun 20, 2013 at 10:40 AM.
Jul 19, 2013, 10:28 PM
#1825
Evolved Member
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Join Date: Mar 2009
Location: Big city, Bright lights
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anybody know if the robi spec/fiber images/downforce composites (not sure exactly what brand it is in the end) carbon hood and trunk still available? never saw em on the robi site and now the sites been down for like 2 weeks...
