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3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

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Old 06-06-2005, 08:21 PM   #1 (permalink)
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What are improvements you can make to improve your 0-60 times on your bmw? Is a lightweight flywheel a good start?
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Old 06-06-2005, 09:02 PM   #2 (permalink)
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if your car is a manual 323:

3.46 differential ($250-$500)
shark injector ($350)

this will def cut your accel time atleast by 0.5 seconds (if you have the manual)
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Old 06-07-2005, 04:57 PM   #3 (permalink)
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Originally posted by woobiee@Jun 6 2005, 09:02 PM
if your car is a manual 323:

3.46 differential ($250-$500)
shark injector ($350)

this will def cut your accel time atleast by 0.5 seconds (if you have the manual)
[snapback]351393[/snapback]


What is a 3.46 differential?
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Old 06-07-2005, 05:06 PM   #4 (permalink)
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the ratio of the diff. the stock is probably low 3.
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Old 06-07-2005, 09:23 PM   #5 (permalink)
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yeah stock manual 323 rear differential is 3.07..going to a 3.46 gives you 12+% power/torque gains transfered to the wheels.
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Old 06-08-2005, 01:43 AM   #6 (permalink)
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Old 06-08-2005, 11:39 PM   #7 (permalink)
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Quote:
Originally posted by 2000BMW323i@Jun 7 2005, 03:57 PM

What is a 3.46 differential?
[snapback]351589[/snapback]
http://auto.howstuffworks.com/differential2.htm

that should help, by changing to a 3.46 you can gear your car for better acceleration... but for the best improvemnt you might want to jion your local BMWCCA and participate in their autocross and driving school events


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Old 06-09-2005, 12:03 AM   #8 (permalink)
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Old 06-09-2005, 10:06 AM   #9 (permalink)
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jim blanton in missouri. he will take your diff, and give you back 3.46 with limited slip per your custom specs for lock up.

about 3.5 grand.
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