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Whats a good Diff Ratio?

Started by Scag · 11 Aug 2010 · 24 replies

Preserved from CalaisTurbo. Original authors and dates are shown; archived members are not current Holdcom accounts. View original archive ↗

ScagArchived member
Hi all iv got a 95 model vs commodore with the live rear axle and my diff is *****d i want to throw an LSD in it what sort of ratio would yous recomend? this sounds stupid but i wanna be able to take it out to eastern creek an have a play on the skid pan but the original diff is just s*** Your help would be muchly appreciated Some original photos have not been recovered yet.
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88 ChaserArchived member
3.9's
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slammedvzArchived member
depends what your using it for, id stick with 3.08
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ScagArchived member
basically i took the car to my mates property and theyve got a huge concrete slab from were they had a big industrial shed, i took my car onto it. basically from a stand still just punched it an had it almost on full lock and it took abit to get the car sliding. but when it was sliding it was nothing special compared to my old vl ---------- Post added 11-08-10 at 11:55 ---------- i no it sounds like a typical P-plater question but this isnt going to be my daily driver. i just wanna make it a fun car to take to events
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WalkyArchived member
3.9's or possibly 4.11's for giggles
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WoggsterArchived member
Personally i like the 3.08 ratio, it's just so laid back and really good all round ratio. but somthing like 3.45 or 3.7 would liven the car up abit, but would effect fuel consumption. or something even shorter if your just gonna thrash it on the skid pan
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ScagArchived member
yeh i was thinking of going 3.08 , basically my plan is to be able to punch it from a stand still and brake traction, because the only way itll brake traction off the mark is nutruel bangin iv done it once and ill never do it again. do you think 3.08 will do it? cheerss
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WalkyArchived member
depends on what mods you have on ur car
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WoggsterArchived member
Nah if it's an auto V6 and you wanna fry the tyres from a stand still 3.08 won't do it, better off going atleast 3.45 or higher if your main aim is frying tyres off the line.
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ScagArchived member
yeh basically thats what i want. do you have any idea what the standard live axel diff ratios are?
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WoggsterArchived member
3.08 as far as i know
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88 ChaserArchived member
3.9's That will bring it alive
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BT1-KIDArchived member
yeah its 3.08
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ScagArchived member
88 Chaser- if your saying 3.9 will bring it alive. does that mean it will do good for what i want it for? because if its 3.08 from factory i higher diff ratio would make it harder wouldnt it?
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Duke57TTArchived member
The shorter the diff ratio, IE 3.45:1, 3.91:1, 4.11:1 etc means the higher the torque multiplication by the diff. The shorter you go the easier it will be to spin up in laymans terms.
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ScagArchived member
That was to easy to understand. Thanks for your help fellas! Some original photos have not been recovered yet.
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NZ EVLHSVArchived member
For highway cruising go 3.08s For good alround performance and daily use go 3.454s For performance around town go 3.9s For skids go 4.11s
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agressiveArchived member
If you want to skid mate go 4.11's, but does rev high on the freeway etc.
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ScagArchived member
No worries , thanks guys! Some original photos have not been recovered yet.
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DOMArchived member
I've got 3.9s in my vs and it's daily. Lots of fun and not as bad as people think. Only downsides I can think of is that it revs high on the freeway and can sometimes get annoying if you just want to get about.
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