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Gear ratios and forced induction

Old Jan 9, 2012 | 10:16 PM
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Originally Posted by devink
I'd love to go FI in the future. My next mod is gears and I'd like to choose a ratio that will provide both immediate gratification as well as be appropriate for my long term goals.


Everyone will prob suggest 3.73 for a 4l60e or if you go 4l80e then 4.10 for your situation.
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Old Jan 10, 2012 | 02:19 PM
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Yup got 4.10 4L80e and a tvs1900... Great combo
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Old Jan 10, 2012 | 06:55 PM
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What stall range in the converters work well for daily driven turbo and SC applications. I currently have a 2800 circled D
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Old Jan 10, 2012 | 08:13 PM
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keep the 3.23's if your going turbo.... I have a 30" tall tire with a th400 and 3.42's, i have thought about going to a 3.08 or so but i might just to to a taller tire if i ever go slicks.... No need to change out to a 3.42 when you can just run a smaller tire like a 28" and down to act as a shorter gear ratio.... Just my opinion and ive had quite a few sets of gears to know lol
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Old Jan 10, 2012 | 08:29 PM
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Originally Posted by Swerve7rpm2000
keep the 3.23's if your going turbo....
x2...
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Old Jan 10, 2012 | 10:39 PM
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i love a lot of gear, but turbo and a 30" or smaller tire i wouldn't want any more than a 3.42. decide what you want in the future. turbo= 3.42, blower=4.10, na= 4.56. just my opinion. 4.56 may also work w/ blower. loved them in my na truck.
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Old Jan 10, 2012 | 11:17 PM
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Keep the 3.23's...if you go turbo and keep the 60e you will thank me! Lol. I even have 3.23's with my 80e and love them. Loads turbo incredibly fast..helps with traction and long enough gear that it pulls forever.
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Old Jan 11, 2012 | 12:48 AM
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What about my 35 tall tire w my 6.0 76mm #8 going thru a 80e

4.56 ?
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Old Jan 11, 2012 | 01:26 AM
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Kazfan,
Why keep the 60e? It seems as though the conventional wisdom dictates that the 80e is far more durable. Do you think it would be better to get the drivetrain on order ahead of time or rock my current 60e, g80 and 3.23s and replace them as they are destroyed?
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Old Jan 11, 2012 | 01:29 AM
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Also, im thinking of a 76mm turbo, what's a good AR for 3.23s and a 29" tire. What stall works in this realm? Thanms for all of the great advice so far.
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