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Whats a good diff for off the mark power? 

 

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 Post subject: Whats a good diff for off the mark power?
Posted: Wed Jul 20, 2005 12:32 pm 
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He guys just a question, What type of diff would be great for off the mark power and what Ratio for an EF?

 

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Posted: Wed Jul 20, 2005 1:13 pm 
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3.45 manual and 3.7 / 3.9 or even 4.1 with auto....

 

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Posted: Wed Jul 20, 2005 4:06 pm 
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for off the line power, 4.1

 

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Posted: Wed Jul 20, 2005 4:11 pm 
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gee a 4.1 would be absolutely crazy for the highway!! :lol:

 

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 Post subject: Re: Whats a good diff for off the mark power?
Posted: Wed Jul 20, 2005 8:29 pm 
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Molloy wrote:
He guys just a question, What type of diff would be great for off the mark power and what Ratio for an EF?



hi

strength reliable and plenty parts around and ratios endless

9 I N C H D I F F E R E N T I A L the best money can buy :wink:

but then again thats my opnion :wink:

cya

 

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Posted: Wed Jul 20, 2005 9:04 pm 
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When you install the 9" diff you will carry another 300kg of unsprung weights and loose 100hp at the bags :P Fit it only if you need it ;)

3.7 is a good compromise, decent on the highway, and snappy around the block, but increase your hp a fair bit and first gear will probably end up in smoke.

 

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 Post subject: LOL
Posted: Wed Jul 20, 2005 9:18 pm 
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South wrote:
When you install the 9" diff you will carry another 300kg of unsprung weights and loose 100hp at the bags :P Fit it only if you need it ;)

3.7 is a good compromise, decent on the highway, and snappy around the block, but increase your hp a fair bit and first gear will probably end up in smoke.


all my nine inch diffs have never been that heavy , and its amazing how the miss conception how much a 9in absorb high horse power

but the each to there own

cya

PS : if its tuff it wont braek :wink:

 

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Posted: Wed Jul 20, 2005 10:48 pm 
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but the fact is it does absorb horespower, and sixes, even modified dont have the horsepower to compromise for 'toughness'

i say get a standard BW lsd, as for the ratio, all the opinions are already her

leave 9" for muscle cars

 

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Posted: Wed Jul 20, 2005 10:57 pm 
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yeah, IMO 9" is massive overkill for a 6. From a strength perspective, you dont often hear of someone breaking a 28 spline BW, and there are enough ratios available. Not as much parts available as 9", but there isnt a shortage.

my preference for ratios: 3.45 for street, 3.7 for street/strip, and 3.9 for strip.

 

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 Post subject: Re: LOL
Posted: Thu Jul 21, 2005 1:29 am 
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FPV_GTp wrote:
South wrote:
When you install the 9" diff you will carry another 300kg of unsprung weights and loose 100hp at the bags :P Fit it only if you need it ;)

3.7 is a good compromise, decent on the highway, and snappy around the block, but increase your hp a fair bit and first gear will probably end up in smoke.


all my nine inch diffs have never been that heavy , and its amazing how the miss conception how much a 9in absorb high horse power

but the each to there own

cya

PS : if its tuff it wont braek :wink:


That comment was tongue in cheek... I was surprised to find out in recent readings that a particular GTHO was using a 6cyl diff that was coping just fine with the rather large amount of torque going through it, so one might say that the 9" is overkill... 9" is piss poor anyway, the Pajero has a 9.25" with 4.636:1 and air locker :P :P :P

 

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 Post subject: Re: LOL
Posted: Thu Jul 21, 2005 3:11 pm 
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South wrote:
9" is piss poor anyway, the Pajero has a 9.25" with 4.636:1 and air locker :P :P :P


air locker would be the s**t for the flacon, but that is bloody crazy diff gearing!!

Is tha tthe current one?

 

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Posted: Thu Jul 21, 2005 3:21 pm 
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Yeah but the 4x4's have big rubber so it isnt quite as impressive as it sounds.

 

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 Post subject: chiptorque
Posted: Thu Jul 21, 2005 4:05 pm 
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Oi how much harder did your effy go with the chip?
I got an ef fairmont, cold air induction, 2.25 exhaust and extractors, with chiptorque chip.

 

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Posted: Thu Jul 21, 2005 4:08 pm 
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would a 3:45 ratio be good for a Auto EF

 

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Posted: Thu Jul 21, 2005 7:39 pm 
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in my old eb 4.0L auto i had lsd with 3.73 put in and it was awsome of the line with wheel spin!!!!
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