what's the point
Staging Lane
Joined: Feb 2012
Posts: 87
Likes: 0
From: Colorado Springs
Only stupid question is the one not asked. However, there is a pretty good search function.
Changing gears is for various applications.
Example: if you use your car for drag racing, and have 3.73 gears with a 6 speed car and cross the finish line at 4500 rpm, might want to get the full use of your motor and change to 4.11 gears and cross the line at 6k rpm in fourth gear.
Let's say your more into open road racing, 4.10 gears are probably not the best choice, especially if your in the 140 mph class. Something like this, your factory gearset is more appropriate since you don't want to run 5k rpm for 120 miles.
Changing gears is for various applications.
Example: if you use your car for drag racing, and have 3.73 gears with a 6 speed car and cross the finish line at 4500 rpm, might want to get the full use of your motor and change to 4.11 gears and cross the line at 6k rpm in fourth gear.
Let's say your more into open road racing, 4.10 gears are probably not the best choice, especially if your in the 140 mph class. Something like this, your factory gearset is more appropriate since you don't want to run 5k rpm for 120 miles.
on the street,gears are an 'equalizer'. 'Fear the Gear'. Torque increase to tires.
For example,let's take a 300 hp 300 ft.lbs. with 3.42 gears. That's 1026 ft.lbs. to the axles (horsepower does not increase but rotational force does). Now with 4.10 gears,that's 1230 ft.lbs. to the axles. More rotational force,more ability to accelerate more quickly.
For example,let's take a 300 hp 300 ft.lbs. with 3.42 gears. That's 1026 ft.lbs. to the axles (horsepower does not increase but rotational force does). Now with 4.10 gears,that's 1230 ft.lbs. to the axles. More rotational force,more ability to accelerate more quickly.
Thread Starter
Staging Lane
Joined: Jun 2012
Posts: 73
Likes: 0
From: Fort Stewart.
so what would yall recommend I do take down the strip I spray Nitrous to but I also run the streets were at times I can usually beat someone before I het 80 mph but in some cases I have hit 140+
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It's a good way to end up needing a new rear axle
Change gears to allow your car to accelerate quicker. If you were gearing just for the 1/8 or 1/4 mile you would try to select the gear for just that use. A street driven car has to be able to cruise down the highway too. So you compromise.
Al 95 Z28 W/4.30's
Change gears to allow your car to accelerate quicker. If you were gearing just for the 1/8 or 1/4 mile you would try to select the gear for just that use. A street driven car has to be able to cruise down the highway too. So you compromise.
Al 95 Z28 W/4.30's
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Staging Lane
Joined: Jun 2012
Posts: 73
Likes: 0
From: Fort Stewart.
suspension me adjustable pan hard bar and torquesion bar sorry if that doesn't sound correct I'm not entirely vehicle savy but I'm learning
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stock 4L60E with,assuming,stock convertor.
it's really best to find out what your rear gear is in that transam rearend,if it came from a 6speed car,it's a 3.42 if it came from an auto car,it could be 2.73 or 3.23.
it seems you're concerned about what rearend gear ratio would be optimal for you,BUT you're discussing 2 different horsepower levels and also nitrous.
high horsepower/nitrous,you don't need a 'lot of gear'(3.73/4.10) as the horsepower/nitrous is your 'equalizer'.
The OEM 7.625" 3.23 & 3.42 are very strong gears compared to the aftermarket 3.73,3.90,4.10 as they are only 7.5". and none of those 5 are as strong as an aftermarket 12 bolt rearend.
what are/is your goal/intended purpose ? 1/8,1/4,street fun,roll racing ?
and when you start adding sticky tires for a good launch,the rear won't last very long.
it's really best to find out what your rear gear is in that transam rearend,if it came from a 6speed car,it's a 3.42 if it came from an auto car,it could be 2.73 or 3.23.
it seems you're concerned about what rearend gear ratio would be optimal for you,BUT you're discussing 2 different horsepower levels and also nitrous.
high horsepower/nitrous,you don't need a 'lot of gear'(3.73/4.10) as the horsepower/nitrous is your 'equalizer'.
The OEM 7.625" 3.23 & 3.42 are very strong gears compared to the aftermarket 3.73,3.90,4.10 as they are only 7.5". and none of those 5 are as strong as an aftermarket 12 bolt rearend.
what are/is your goal/intended purpose ? 1/8,1/4,street fun,roll racing ?
and when you start adding sticky tires for a good launch,the rear won't last very long.
TECH Fanatic
Joined: Jun 2007
Posts: 1,062
Likes: 2
From: Westminster, MD
S60 with 9.75" ring gear FTMFW lol throw 1000+hp at it, it won't care.
Seriously though, imo it's not worth swapping gears in the 10-bolt. I don't want to waste money on the 10-bolt making it weaker (because the gear strength isn't as good as OEM) when I can just save that money and put it towards a better rear end that comes with better gears.
I'm planning on either a 9" or an S60 with between 3.50-3.73 gears. For now, while they aren't super fun, I'll keep my 2.73 ten-bolt, and enjoy some savings on gas as well as not worrying about putting money into the stock unit.
Seriously though, imo it's not worth swapping gears in the 10-bolt. I don't want to waste money on the 10-bolt making it weaker (because the gear strength isn't as good as OEM) when I can just save that money and put it towards a better rear end that comes with better gears.
I'm planning on either a 9" or an S60 with between 3.50-3.73 gears. For now, while they aren't super fun, I'll keep my 2.73 ten-bolt, and enjoy some savings on gas as well as not worrying about putting money into the stock unit.
