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3.23 LSD 

 

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 Post subject: 3.23 LSD
Posted: Sat Jun 21, 2008 3:12 am 
Getting Side Ways
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Hay guys

Just curious to know, I should be getting a 3.23 LSD out of a EB V8 fairmont ghia on the weekend.I have been told that it will boost my take off's a little and decrease my top end, is this correct or am i getting told b.s.

Cheers
Josh
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Posted: Sat Jun 21, 2008 3:57 am 
Tyre Shredder
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I have a 3.23 single spinner and yeah i helped my take off a s**t load ( but may be because i went from a 3.03 single with bent axles) other then that mine all seems the same other then the RPM being higher.
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Posted: Sat Jun 21, 2008 5:52 am 
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Depends on what ratio you have in the car now.

 

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Posted: Sat Jun 21, 2008 3:29 pm 
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it wouldnt decrease ur top end of the rev range, but decrease ur top speed yes..if there was no limiter. since there all limited to 180, with a 3.23 diff u will get there faster, but at that constant speed the car will rev a little higher, with the shorter diff ratio.

 

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Posted: Sat Jun 21, 2008 4:06 pm 
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Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

if its a eb v8 diff it should be a 3.27(yea i know its close enough!)

you will find a slight improvement in accelaration and you wont notice any drop in top speed except the rpm will be alittle higher eg 3.08 =1900 rpm@100km..and 3.27=2100rpm@100..aprox..
dont forget to change the speedo drive gear in the box or your speedo will be out...
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Posted: Sun Jun 22, 2008 10:35 pm 
Getting Side Ways
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Go with it Josh, you'll notice a big difference from a 3.08. Should be more economical around town and as Troy says only revs a little higher @ 100kph, although I found my 3.45 only 'cost' me around 100rpm, nothing really.
Unless you're measuring it at the track you won't notice any real difference from a 3.23/7 to a 3.45 either, it's a good versatile ratio.
Even if you've got a 3.23 ratio now the LSD will be a big improvement in overall use.
Cheers,
Mac

 

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Posted: Sun Jun 22, 2008 11:34 pm 
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so with an auto if i went from 3.23 to 3.45 or 3.5 what would my 100kph revs climb to?

 

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Daily driver: AU2. 5 speed. 19" FG luxos. Full exhaust. Lowered. AU3 XR leather interior, converted to full power windows. 3.45 LSD. IN THE FUTURE: Tickford 6
Weekend driver: EA SVO AU motor. Built BTR. TCE 2800 stall. T76 turbo. Locked diff. On E85. approx 320rwkw. 11.5 @121mph

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Posted: Sun Jun 22, 2008 11:48 pm 
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It's a good move as long as you have a taller diff ratio now.....

It will definitely make the car accelerate a bit harder but won't effect your top speed much at all....

a 147kw 6 or 165kw 8 will run out of power long before it runs out of revs in top gear!

LSD's are such a better thing than an open diff anyway, do it just for that if nothing else!

 

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