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Location:
South Australia
Registered:
July 2002
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Re: final drive 5.1
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Mon, 27 October 2003 15:49
 
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Yeah - when you get to about 5.1 final drive, you need something that changes pretty quick, button-clutch, lightened flywheel etc etc, probably a close ratio dog-box wouldn't go unmissed either, and an engine with a good spread of torque.
Okay, you don't need these things, but without them you would be changes gears too often to actually be going quicker than if you had something between a 4.5 to 4.8:1 diff.
And your top-speed will have a (near) direct relation with the change in ratio of the diff. So say your previous top speed was 200km/h and you initially had a 4:1 diff (for example) and you changed to a 5:1 diff, you would have 4/5 of 200km/h (20% loss of top speed) which is 160km/h.
In reality, this isn't quite the case due to various non-linear factors (air-resistance being one of them) so you'd probably lose somewhere between 15 to 20% of your top speed in that example.
Your fuel economy will be shot to **** too 
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| | Subject | Poster | Date |
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final drive 5.1
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Satoshi | Mon, 27 October 2003 13:02 |
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Re: final drive 5.1
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Norbie | Mon, 27 October 2003 13:16 |
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Re: final drive 5.1
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BlackSupra | Mon, 27 October 2003 13:25 |
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Re: final drive 5.1
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Satoshi | Mon, 27 October 2003 14:05 |
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Re: final drive 5.1
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justcallmefrank | Mon, 27 October 2003 14:57 |
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Re: final drive 5.1
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RWDboy | Mon, 27 October 2003 15:49 |
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Re: final drive 5.1
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Satoshi | Mon, 27 October 2003 16:27 |
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Re: final drive 5.1
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ae86trueno | Mon, 27 October 2003 21:29 |
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Re: final drive 5.1
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mrshin | Mon, 27 October 2003 22:02 |
