: StageUp - Your Final Gear Ratio?



atdeneve
07-02-08, 08:19 PM
StageUp, did you change your final gear ratios? You're definitely a bit higher in each gear than a stock V.

Looks like you can do 50 in 1st, 70 in 2nd, at least 101 in 3rd, and, at least, 145 in 4th. That's a good 5-7 mph above stock speeds in each gear.

I know Rey swapped to a 3.42, but wasn't aware of anyone else having changed their final gears. And I think the 3.42 will actually have a bit higher speeds in each gear than yours (about 51/73/105/151, give or take), so just wonderin what ya did. Unless you tweaked your transmission...

http://videos.streetfire.net/video/CTSV-video_135116.htm
http://videos.streetfire.net/video/In-car-video-of-2005-CTSV_153186.htm

Oh, and "Ahl be bahk". Haha! Naiz!

JonCR96Z
07-03-08, 02:02 AM
It has to be changed in the tune. Either he did swap gears or he just tweaked the tune (maybe for sifferent size tires). But even if you did a 2:1 final ratio the speedo would remain constant to the tach until the tune was corrected.

Watch the tach and see if when he changes if it drops to the same point after the shift as yours does.

Or maybe he just has a higher shift point than what your comparing it to. I really don't have any idea what the tops speeds are per gear so I couldn't tell you.

NormV
07-03-08, 07:43 AM
Watch the RPMs!

HPTuners is your friend! :)

Norm

atdeneve
07-03-08, 05:20 PM
Watch the RPMs!

Norm


Yeah, that's exactly what I was looking at, cuz that's really the only consistent point of comparison I have. He goes right up to red line, sometimes rev limit, (6500 / 6600, respectively), and he's consistently about 5-7 mph higher in each gear, as compared to a stock V (about 45-46/65/95/138). Anyways, guess he's incognito...

STAGEUP
07-04-08, 03:50 AM
Yep, thats me! I was running 245/40/18 at the time, so Im sure it was off. I got 275/40/18 now, so Im pretty sure its better now. I will get another vid up shortly! :) But I know I do hit about 140mph in 4th now since my rev limit is at 6800rpms. :)

NormV
07-04-08, 06:50 AM
Teehee! :)


Norm


Yep, thats me! I was running 245/40/18 at the time, so Im sure it was off. I got 275/40/18 now, so Im pretty sure its better now. I will get another vid up shortly! :) But I know I do hit about 140mph in 4th now since my rev limit is at 6800rpms. :)