Corvette Z06 Forum banner

3.15 axle in a Z06

4795 Views 11 Replies 7 Participants Last post by  c4c5specialist
Since at this point most of us prospective owners are essentially after a new Z06 that is "built to order", does anyone know if it is or would be "possible" to order with the 3.15 axle ratio? A 3.15 axle ratio is an option on automatic transmission equipped Coupes and Convertibles, so why not on the Z06?

I think it would be a desireable "option" for those of us that do not intend to put our cars on the track.

As an aside, the one thing holding these cars back as far as it's credential to become the new KOTH Corvette, is it's top speed rating. A speed in the low 170s is several MPH less than all model year C5 Coupes and certainly less than the now defunct ZR-1 Corvette. It would be great if the Z06 became the new KOTH and dethrone the ZR-1 for that honor in all possible categories.

As much as having ultimate bragging rights would mean to most Z06 owners, I would just as soon have a car that gets even better gas mileage on the highway. To me a phenomenal performance car that gets nearly 30mpg is also a form of bragging right. /phpBB/images/smiles/icon_wink.gif

All Corvettes come with "Y" speed rated tires, so improving the Z06's top speed should be in keeping with it's image as the new KOTH. But, since there is a tradeoff in other areas of performance, it would be best if the 3.15 axle ratio were treated as an option only just like it is on the automatics.
See less See more
1 - 1 of 12 Posts
dsinned, I must admit: that is a rather unusual wish! /phpBB/images/smiles/icon_smile.gif Most people (I included) crave for mind bending acceleration and in this respect, you could not make the gears short enough (numerically higher) for me. I test the acceleration of my car every half chance I get, and while top speed is certainly a benchmark for high performance cars, it is one aspect that most drivers will never safely (or legally) explore. That said, with the 3.15 rear, the Z will definitely hit 180 mph and likely flirt with 185 mph at redline in 5th. But the right solution would be a usable 6th gear ratio of ~0.74:1 (leaving other ratios including the rear as is) that would not sacrifice acceleration, yet will get you into that elusive 180+ mph space for bragging rights! /phpBB/images/smiles/icon_smile.gif
See less See more
1 - 1 of 12 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.