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Old 19-02-2007, 06:06 PM   #1
brother bob
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Default revs with 3.45

what revs will i be doing at 100kms with a 3.45 diff ?
thinking of changing from 3.23 standard to xr6 lsd .

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Old 19-02-2007, 06:13 PM   #2
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not much diff (pun intended) will go from about 1900 to 2000 or 2100 at most.
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Old 20-02-2007, 03:44 AM   #3
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shouldnt be all that different but u will have a better take off, got 3.7 that will throw u in your seat
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Old 20-02-2007, 08:03 PM   #4
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i sit on exactly, 2000rpm on 100kph in my el xr6. Through a T5.
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Old 20-02-2007, 08:24 PM   #5
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I sit just over 2000rpm at 110, so pretty much on 2000rpm at 100 - through an auto
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Old 20-02-2007, 10:39 PM   #6
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2100 with manual.
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Old 21-02-2007, 04:16 AM   #7
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2100 here with a EA T5.
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Old 21-02-2007, 11:40 AM   #8
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2100rpm EA T5 for me
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Old 21-02-2007, 12:08 PM   #9
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1900, ED T5 here
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Old 21-02-2007, 04:07 PM   #10
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Quote:
what revs will i be doing at 100kms with a 3.45 diff ?
thinking of changing from 3.23 standard to xr6 lsd .
Take original revvs at 100km, divide by original diff ratio, then multiply by new diff ratio.

i.e.:

1750rpm/3.23 = 541.7

541.7*3.45 = 1869rpm (<-- new rpm with 3.45's)
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Old 21-02-2007, 10:01 PM   #11
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mine sits on about 2000/2100 in an el xr6 auto
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