5.13 gearing with 32" tires?
10-07-2010, 03:39 PM
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5.13 gearing with 32" tires?
Anyone have performance data or experience for 5.13 gears with 32" in tires?
I am trying to decide on my next upgrade.
Thanks
Viper
I am trying to decide on my next upgrade.
Thanks
Viper
10-07-2010, 03:52 PM
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I ran 5.13's with 32" (actual height) tires for about 6 months before putting the 35's on. RPM's were close to the what the chart shows. The only downside for me was OD/Off towing on the freeway, where the rpm's climbed a bit high.
So, measure your tires and plug the 'actual' height into the chart in the Drivetrain faq's (top of this section) to see where you'll be.
So, measure your tires and plug the 'actual' height into the chart in the Drivetrain faq's (top of this section) to see where you'll be.
10-07-2010, 03:58 PM
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Too much for a manual,just about right for an auto.
Most guys think I'm crazy,but I'm going to be doing the same thing shortly. If you look at a dyno chart,the 3.8 doesn't do anything until about 2300rpm.
The guys that think I'm crazy just see the 5.13s and don't take where the 3.8 is most efficient at into consideration.
5.13s and an auto with 32s will put you at
2700 at 70mph
2500 at 65
2300 at 60
Basically the same as driving with O/D off,but then you only have 3 gears working for you. If you re-gear you can run in O/D and get that gear back.
Most guys think I'm crazy,but I'm going to be doing the same thing shortly. If you look at a dyno chart,the 3.8 doesn't do anything until about 2300rpm.
The guys that think I'm crazy just see the 5.13s and don't take where the 3.8 is most efficient at into consideration.
5.13s and an auto with 32s will put you at
2700 at 70mph
2500 at 65
2300 at 60
Basically the same as driving with O/D off,but then you only have 3 gears working for you. If you re-gear you can run in O/D and get that gear back.
10-07-2010, 05:30 PM
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Too much for a manual,just about right for an auto.
Most guys think I'm crazy,but I'm going to be doing the same thing shortly. If you look at a dyno chart,the 3.8 doesn't do anything until about 2300rpm.
The guys that think I'm crazy just see the 5.13s and don't take where the 3.8 is most efficient at into consideration.
5.13s and an auto with 32s will put you at
2700 at 70mph
2500 at 65
2300 at 60
Basically the same as driving with O/D off,but then you only have 3 gears working for you. If you re-gear you can run in O/D and get that gear back.
Most guys think I'm crazy,but I'm going to be doing the same thing shortly. If you look at a dyno chart,the 3.8 doesn't do anything until about 2300rpm.
The guys that think I'm crazy just see the 5.13s and don't take where the 3.8 is most efficient at into consideration.
5.13s and an auto with 32s will put you at
2700 at 70mph
2500 at 65
2300 at 60
Basically the same as driving with O/D off,but then you only have 3 gears working for you. If you re-gear you can run in O/D and get that gear back.
