Rear End Upgrade
#12
Originally Posted by jimlab1' date='May 21 2004, 10:50 PM
Actually, despite a significant increase in the size and strength of the parts involved, the aluminum '03+ Cobra 8.8" IRS differential assembly is about 7 pounds lighter than the cast iron original.
And, while you're on a roll, most people don't want one for drag racing. They want one to retain the handling the car came with while improving strength, decreasing weight a little, and getting a wide range of gear ratios in the bargain.
FD 36 lb. cast iron housing on the left, Cobra 14 lb. aluminum housing on the right.
http://www.rx7club.com/forum/attachment.ph...&postid=1380794
Cobra 8.8" ring and pinion on the left, FD 8.0" (203mm) ring and pinion on the right.
http://www.rx7club.com/forum/attachment.ph...&postid=1391549
FD Torsen on the left, Cobra 8.8" Zexel Torsen on the right.
http://www.rx7club.com/forum/attachment.ph...&postid=1423200
FD on the bottom, Cobra 8.8" on top.
http://www.rx7club.com/forum/attachment.ph...&postid=1423203
Cobra 8.8" differential, cradle, and FD rear subframe.
http://www.rx7club.com/attachment.php?s=&postid=2585932
And one more...
http://www.rx7club.com/attachment.php?s=&postid=2585938
Any questions?
And, while you're on a roll, most people don't want one for drag racing. They want one to retain the handling the car came with while improving strength, decreasing weight a little, and getting a wide range of gear ratios in the bargain.
FD 36 lb. cast iron housing on the left, Cobra 14 lb. aluminum housing on the right.
http://www.rx7club.com/forum/attachment.ph...&postid=1380794
Cobra 8.8" ring and pinion on the left, FD 8.0" (203mm) ring and pinion on the right.
http://www.rx7club.com/forum/attachment.ph...&postid=1391549
FD Torsen on the left, Cobra 8.8" Zexel Torsen on the right.
http://www.rx7club.com/forum/attachment.ph...&postid=1423200
FD on the bottom, Cobra 8.8" on top.
http://www.rx7club.com/forum/attachment.ph...&postid=1423203
Cobra 8.8" differential, cradle, and FD rear subframe.
http://www.rx7club.com/attachment.php?s=&postid=2585932
And one more...
http://www.rx7club.com/attachment.php?s=&postid=2585938
Any questions?
#13
I checked the links and they work for me. Maybe you have to have an active account on RX-7 Club forum. In any event, here are the pictures I mentioned above.
FD 36 lb. cast iron housing on the left, Cobra 14 lb. aluminum housing on the right.
FD 36 lb. cast iron housing on the left, Cobra 14 lb. aluminum housing on the right.