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changing diff ratio 

 

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 Post subject: changing diff ratio
Posted: Tue Jan 18, 2005 2:30 pm 
Parts Gopher
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Age: 31

Posts: 56

Joined: 19th Nov 2004

Ride: EB XR8

Location: Sydney - St Clair
NSW, Australia

hey guys i know nothing about this so im going to need all the help i can get. im interested in upping diff ratio's on my 1992 eb xr8. what diff and ratio's am i running at the moment?? and what do you guys suggest i could change in order to get better off the line performace??
thanx fella's
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Posted: Tue Jan 18, 2005 2:44 pm 
Parts Gopher
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Age: 35

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Joined: 8th Nov 2004

Location: perth
WA, Australia

Ive put 3.73 ratio in my ef inline 6 up from 3.08 diff ratio and it woke the car up from its slumber!! If your car is auto than go this ratio IMO. With nearly a full tank, bigger snorkel k&n panel filter and this diff change i got a 15.6 1/4 mile timewen standerd the around 16.3 or sumfn
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Posted: Tue Jan 18, 2005 3:02 pm 
Parts Gopher
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Age: 31

Posts: 56

Joined: 19th Nov 2004

Ride: EB XR8

Location: Sydney - St Clair
NSW, Australia

thanx buddy...does anyone else have any advise or suggestions to offer me??
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Posted: Tue Jan 18, 2005 3:09 pm 
Parts Gopher
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Age: 31

Posts: 56

Joined: 19th Nov 2004

Ride: EB XR8

Location: Sydney - St Clair
NSW, Australia

or even better does anyone recommend a diff specialist in the western sydney area i can talk to.
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 Post subject: Re: changing diff ratio
Posted: Tue Jan 18, 2005 3:15 pm 
Getting Side Ways
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Ride: ALTED XR6 - ALTED EA - EF TAXI

Location: Sunshine Coast QLD
QLD, Australia

ebxr8 wrote:
hey guys i know nothing about this so im going to need all the help i can get. im interested in upping diff ratio's on my 1992 eb xr8. what diff and ratio's am i running at the moment?? and what do you guys suggest i could change in order to get better off the line performace??
thanx fella's


Hey there ... If your car is an Auto, the 92 EB XR8 had a 3.27:1 open wheeler, The manual version's came with a LSD . From what I believe, the XR's did not come with 3.45LSD until EB2's were out.

It all depends on how much higher you wanna go, remember the higher diff ratio, the more on fuel you'll end up using the hwy ..

Changing from a 3.27:1 to a 3.45:1 would give you a better take off, and only about 200-400RPM higher rev's on the hwy .
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 Post subject: Re: changing diff ratio
Posted: Wed Jan 19, 2005 8:34 pm 
Parts Gopher
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Age: 55

Posts: 95

Joined: 5th Nov 2004

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Ride: EA Fairmont Giha

Location: Redcliffe
QLD, Australia

au2low wrote:
Changing from a 3.27:1 to a 3.45:1 would give you a better take off, and only about 200-400RPM higher rev's on the hwy .


From what I can understand from another thread here, I should have a 2.77 LSD in my EA Ghia. As I do more city driving (95+%) then Highway, a 3.0+ centre would suit me with better economy and take off wise ??

 

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