robbydee
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| posted on 15/2/09 at 07:19 PM |
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diff change... real world...
i know there are calculators etc to work out ratios speed etc....
but currently i have a 3.38 non lsd
what on the road can i expect if i change to a 3.92..
is is noticable?
its a pinto with bike carbs megajolt, etc...
[Edited on 15/2/09 by robbydee]
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jacko
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| posted on 15/2/09 at 07:24 PM |
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I have a pinto with a 3.62 and it seems about right to me for on the road
Mookaloid had a 3.92 for hill climbing
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Hellfire
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| posted on 15/2/09 at 07:59 PM |
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What sort of speeds do you get with a 3.38 diff in each gear? What's your top speed and how long does it take to reach 60mph? If you include
these details, then maybe someone with a 3.62 or 3.92 diff and similar engine can give you their figures.
Phil
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rusty nuts
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| posted on 15/2/09 at 08:13 PM |
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Tyre sizes can also make a difference. I have a 3.62 on my 1600 xflow engined car running 195/50/15 tyres which seems fine to me , suspect a 3.92 diff
would perhaps be slightly quicker on acceleration but engine revs would be higher for any given road speed
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hobbsy
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| posted on 15/2/09 at 08:35 PM |
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Surely its just 3.38/3.92 x whatever speed you get in each gear or top speed.
Or to look at it another way you'll be doing 3.92/3.38 x the revs you currently do in any gear at a certain speed (e.g. motorway cruising).
I've not changed ratios in the same car but my old Blackbird Fury has a ~3.9 diff and that went well to 60 etc but did top out quite earlier
(~110/115 mph IIRC)
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Jasongray5
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| posted on 15/2/09 at 11:42 PM |
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I will swap a 3.92 Diff for your 3.38, Cash your way aswell...
How hard can it be?
http://www.flickr.com/photos/33261515@N03/sets/72157611049241239/
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