Gears Next, Tough Call.
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Gears Next, Tough Call.
My next mod will be gears. I dont want to do it twice, so I need everyones best arguement for witch gear and why. I have been leaning heavy to 4.10s but some people say it will be slower in the long run(Witch I dont see). I know it will rev on the highway. I can deal with that if it means Im gonna dig that much harder. This car sees highway maybe once a week tops. Other than that its a daily 5 mile car. Thanks for any advice.
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In an Auto it's low, DR will catch it, but 3.73's will give you a better constant acceleration. Lower is not necessarily better. Some guy in a 97SS had 4.56's in it with A4. We ran off a stoplight. He got me off the line, but as soon as I hit second, I was catching him, and passing him halfway through that gear. 4.56 is a good 1/8 mile gear, so imagine how low them 4.10's would be on the street, compared to 3.73's.
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Originally Posted by luckyou03
i run 4.10s in an auto an love it. I switched the 3.73's for the 4.10's.
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well for the 4L60E/700R4's that are in the Fbody's... you might want the 4.10's cuz the ratio's in the tranny, there are such big drops you need the rear gear to help keep it pushing through the gears...
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Originally Posted by Speed Density
Dont worry about your rear if your an A4 and not running 10s.
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With an A4 in OD set on cruise....
With 4.10's @ 75mph you will be around 2600-2800rpms, maybe a little more/less depending on tire/wheel size.
With 3.73's @ 75 you will be around 2300-2500, maybe a little more/less depending on tire/wheel size.
You will lose 3-5 mpg either way.
Here's my insight...
If I where you....
Youre car is pretty much stock. If you want to make it alot faster, you can't just go buying mods as soon as you have the money, you need to line things up.
Either way you will need a stall converter. For 3.73's I recommend a 2600-3200 for Daily Driving. If you go with 4.10's, I recommend a higher stall so your car stays in the higher revs longer for the lengthy gear. Around 3000-4000.
If it was me, I'd go 3.73's. But not until I got Headers and a Stall.
Those 3 things lined up correctly will shave 1 full second.
With 4.10's @ 75mph you will be around 2600-2800rpms, maybe a little more/less depending on tire/wheel size.
With 3.73's @ 75 you will be around 2300-2500, maybe a little more/less depending on tire/wheel size.
You will lose 3-5 mpg either way.
Here's my insight...
If I where you....
Youre car is pretty much stock. If you want to make it alot faster, you can't just go buying mods as soon as you have the money, you need to line things up.
Either way you will need a stall converter. For 3.73's I recommend a 2600-3200 for Daily Driving. If you go with 4.10's, I recommend a higher stall so your car stays in the higher revs longer for the lengthy gear. Around 3000-4000.
If it was me, I'd go 3.73's. But not until I got Headers and a Stall.
Those 3 things lined up correctly will shave 1 full second.
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Originally Posted by BizZzatch350
Screw gears, throw a stall in that puppy, then long tubes and last do the gears