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Old 30-05-2006, 10:13 PM   #1
NeishaXR8_347
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Default Guys/gals with 3.9 ratios

hey all just want to know who has 3.9's fitted and are they worth the money i now have a 3.45 would it be worth the cash?, also what have you done to correct speedo issues please. 4.11's beta?
thanks in advance

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Old 30-05-2006, 10:17 PM   #2
XR6-VCT-2000
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lol , this was all just mentioned in a few threads below , imo 4.11's are better bang for buck on the street ( as u can't go past 100kmph in most places ayways , no need of a top speed of 180 odd kmph unless you are into the strip) if you wanna be thrown back in the seat ! - 4.11's it is . As far as calibration i posted a link for that too to a jaycar device http://www.jaycar.com.au/productView...=&SUBCATID=347
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Old 30-05-2006, 10:47 PM   #3
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As far as track times go, i'm not real sure. But I didn't get a chance to test the gear ratio change on its own at the track. I changed the exhaust as well before I made it back to the WSID for some 1/4 mile runs.

However, the car felt much more responsive in higher gears at lower road speeds.

A higher stall converter (if auto) would be a better upgrade, with respect to 1/4 mile performance, than diff gears IMO.
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AU XR8 Ute 13.90 @ 100mph - http://www.aufalcon.com/xr8ute
5L Windsor, GT40X heads, Crane 2030, Pacey 4-1s, Lukey 3", 3.91:1, auto. Tuned by me w/Quarterhorse and BinaryEditor.

Coming Soon: Ported lower intake, Tickford "Premium" Brakes, and a good wash.
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Old 30-05-2006, 11:06 PM   #4
NeishaXR8_347
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well ive already got a 3000 stall and if i stall it to 3000 when i let go of brake it goes from 3000 to redline pretty damn quick and you dont really move anywhere lol. so should i forget about diff gears then.
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Old 30-05-2006, 11:21 PM   #5
xr8ute
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LOL....sounds like you need to invest in some sticky rubber.
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AU XR8 Ute 13.90 @ 100mph - http://www.aufalcon.com/xr8ute
5L Windsor, GT40X heads, Crane 2030, Pacey 4-1s, Lukey 3", 3.91:1, auto. Tuned by me w/Quarterhorse and BinaryEditor.

Coming Soon: Ported lower intake, Tickford "Premium" Brakes, and a good wash.
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