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| daggy082 |
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Simple question, is the 3.7 ratios to high for a daily driver that is gonna be used for alot of highway driving? Or should i just go for a 3.45 lsd? But if i was to go for the 3.7 where would i source 1 from and how much?
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| mrnasty |
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do a search, has been covered quiet a few times.
_________________ Cougar Zero makes my pants fit nice. |
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| daggy082 |
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mrnasty wrote: do a search, has been covered quiet a few times.
Cmon mate im too lazy for that  but i did search and will just stick with a 3.45 lsd from a ford.
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| daggy082 |
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Double post
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| Johnson stroker |
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shoot Jaysen a pm he will tell your the various rev ranges in each gear.. he has 3.7's and worked it all out..
Personally I woud go 3.7's though
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| millard455 |
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there is a calculator on here that will let you work this stuff out but i dont have time to find it for ya. id go with 3.7 final drive.
_________________ EL XR8 SERIES 2, 5SPD, HOT CHILLI RED, 200 ODD RWKW OF V8 FUN AND GAMES |
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| daggy082 |
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When i search i found that R31 skyline gears fit but are s**t. So where do i get the 3.7 diff centre?
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| cjh |
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daggy082 wrote: Simple question, is the 3.7 ratios to high for a daily driver that is gonna be used for alot of highway driving? Or should i just go for a 3.45 lsd? But if i was to go for the 3.7 where would i source 1 from and how much?
Here's a photo of how to work out speed verses ratio stuff.
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| andrewsfutura |
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3:7's are always good for a quick launch just remember when you are doing 100k's your revs will be onabout 2500. Thats with a T5 manual anyway.
_________________ The boogieman checks under his bed for chuck norris |
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| mr_rx7_ |
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Age: 37 Posts: 347 Joined: 10th Jan 2005 Ride: 2002 Mustang Cobra Location: Broadmeadows (Melb. North) |
Has the auto Shiftpoint/Incorrect speedo problem been solved yet? I'm going from 3.08 to 3.7 soon...
_________________ Red 2002 Mustang Cobra |
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| ebfairmont3.9 |
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nothing launches your car harder then 4.11's u wont no know what hit you and if u have a 4spd ull do 2250revs at 100, 2500 at 110....not to bad doesnt bother me.
_________________ 1994 ED Fairmont Champaign Gold - AU Series II Intech 4.0L - EL EFI - Thermo Fans - 4.11 LSD - Pacemaker 4480 Into Custom 3" Exhaust - Shift Kit |
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| prydey |
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ebfairmont3.9 wrote: nothing launches your car harder then 4.11's u wont no know what hit you and if u have a 4spd ull do 2250revs at 100, 2500 at 110....not to bad doesnt bother me.
are you sure your speedo is calibrated correctly. 3.45's will be around 2150 with a t5. (ef xr6) i have 3.9's and auto and i reckn mine's up around 2400 @ 100. 4.11's would def be more than 2250 @ 100kph.
_________________ eb v8: low loud and fast. just how a v8 should be. i guess the big question is, is it fast enough... |
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| TerroristGHIA |
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To solve the speedo issue, send the boys at shiftkits.com.au a request, they will supply a box that does the job with instructions on how to wire it in. They helped fix mine.
I solved my prob of the 3.9 gears with and XD transducer from mal wood witch got the speedo accurate, and the box got the shift points right. Brett
_________________ The Terrorist ED Retired due to RUST. |
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| mickoxhxr8 |
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[quote="prydey"][quote="ebfairmont3.9"]nothing launches your car harder then 4.11's u wont no know what hit you and if u have a 4spd ull do 2250revs at 100, 2500 at 110....not to bad doesnt bother me.[/quote]
are you sure your speedo is calibrated correctly. 3.45's will be around 2150 with a t5. (ef xr6) i have 3.9's and auto and i reckn mine's up around 2400 @ 100. 4.11's would def be more than 2250 @ 100kph.[/quote] He pretty close to the mark. Mine same. As for skyline gears being crap. You set them up properly with the right shims you wont have a problem, if you dont then they will be noisy. Biggest problem with skyline gears IMO is they are used on a 75 series centre where as falcon are 78 series. Difference is about 70thou. |
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| falcon_3512003 |
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whats the go with the speedo and gear changing point thing as im looking at going 3.9 soon do i have to change somthing or is it that the speedo will just be out?
_________________ now have a series 1 au starting the mods slowly |
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