Fordmods Logo

4.11's 

 

Page 1 of 2 [ 19 posts ] Go to page 1, 2  Next

 
 Post subject: 4.11's
Posted: Wed May 10, 2006 10:08 pm 
Stock as a Rock
Offline
User avatar

Age: 38

Posts: 135

Joined: 3rd May 2006

Gallery: 3 images

Power: 149 rwkw

Location: Bendigo
VIC, Australia

:twisted: hey im chasin a set of 4.11 diff gears for my ef gli auto 6, im on the sunshine coast qld any help would be greatly appreciated :lol:

 

_________________

Skidz are cooooool!

15.49 @ 91MPH
2.327 60ft
Willowbank Raceway 14th October 2006
220k motor 320k auto

Top
 Profile  
 
 
Posted: Wed May 10, 2006 10:47 pm 
Getting Side Ways
Offline
User avatar

Age: 34

Posts: 2351

Joined: 11th Nov 2004

Gallery: 30 images

Ride: Blown XR8

Location: Melbourne
VIC, Australia

Of course, to state the obvious... You realise whats this will do to your car, as they are fairly high diff gears for a street driven car.
Top
 Profile  
 
 
Posted: Thu May 11, 2006 12:55 am 
Parts Gopher
Offline

Age: 31

Posts: 90

Joined: 5th Jan 2006

Ride: svo

Location: melbourne
VIC, Australia

i can get you a detroit locker for like 1000 my mate is selling his

 

_________________

black ba xr6 with sunroof = more hot chicks

Top
 Profile  
 
 
Posted: Thu May 11, 2006 9:59 am 
Getting Side Ways
Offline
User avatar

Age: 36

Posts: 1249

Joined: 5th Nov 2004

Ride: Falcon

Location: Melbourne
VIC, Australia

The I6, isnt a particularly high reving engine, I have a 9" 4.11 LSD on my 5.8lt clevo and it suits that just fine and thats only because I have a large cam in there that demands 3500+ rpm, on an I6 I think you'll start hearing bad noises pretty quickly.

 

_________________

I couldnt fix your brakes so I made your horn louder
Image

Top
 Profile  
 
 
Posted: Thu May 11, 2006 7:02 pm 
Getting Side Ways
Offline
User avatar

Age: 30

Posts: 2280

Joined: 5th Nov 2004

Ride: EF Falcon 95

Location: Rosebud
VIC, Australia

3.7's and 3.9's are your friend.

4.11's most likely are not your friend. Mine with 3.7's in an auto I6 revs at 2300rpm at 100km/h on the freeway. thats high enough for me!

 

_________________

Cougar Zero makes my pants fit nice.

Top
 Profile  
 
 
Posted: Thu May 11, 2006 10:48 pm 
Getting Side Ways
Offline
User avatar

Age: 34

Posts: 607

Joined: 11th Nov 2004

Gallery: 8 images

Ride: XR6

Location: Melbourne
VIC, Australia

mrnasty wrote:
3.7's and 3.9's are your friend.

4.11's most likely are not your friend. Mine with 3.7's in an auto I6 revs at 2300rpm at 100km/h on the freeway. thats high enough for me!


does it go good with 3.7 diff gears i have 3.45 and would like to goto 3.7 mine is a manual tho.

 

_________________

BA XR8 BOSS 260
Winter White
18' gt-p wheels
Flash Tuned
2 jl 13.5' w3's
tv indash

Top
 Profile  
 
 
Posted: Fri May 12, 2006 2:29 am 
Getting Side Ways
Offline
User avatar

Age: 31

Posts: 896

Joined: 3rd May 2005

Gallery: 18 images

Ride: Blueprint EB II Fairmont 5L

Location: Wanneroo
WA, Australia

ryansvo wrote:
i can get you a detroit locker for like 1000 my mate is selling his

ive been told you cant get detroit lockers for a BW diff.....i was told by about 10 diff shops / performance shops, Rocket & VPW that if i wanted a detroit locker i needed a 9"

4.11's are s**t for the street on a stock car...i had them and there was s**t power in 2nd and 3rd gear, although very responsive in 1st.....
Top
 Profile  
 
 
Posted: Fri May 12, 2006 3:39 am 
Parts Gopher
Offline

Age: 31

Posts: 90

Joined: 5th Jan 2006

Ride: svo

Location: melbourne
VIC, Australia

unless you have lots of mods and the car is more of a strip car then the 3.7 are the better diff to go with

 

_________________

black ba xr6 with sunroof = more hot chicks

Top
 Profile  
 
 
 Post subject: mods ?
Posted: Fri May 12, 2006 3:53 pm 
Stock as a Rock
Offline
User avatar

Age: 38

Posts: 135

Joined: 3rd May 2006

Gallery: 3 images

Power: 149 rwkw

Location: Bendigo
VIC, Australia

yeah the engine is fairly modified with big port work high compression 10mm leads pacemaker extractors hi flow cat 3" mandrel bent exhaust, 90mm throttle body and custom 12 litre intake manifold, cam coming soon. With 4.11's fitted it will sit on 2700rpm at 100 kph. The car is drivin 50% road and 50% strip :twisted:

 

_________________

Skidz are cooooool!

15.49 @ 91MPH
2.327 60ft
Willowbank Raceway 14th October 2006
220k motor 320k auto

Top
 Profile  
 
 
Posted: Fri May 12, 2006 3:55 pm 
Parts Gopher
Offline

Age: 31

Posts: 90

Joined: 5th Jan 2006

Ride: svo

Location: melbourne
VIC, Australia

what cam you getting?

 

_________________

black ba xr6 with sunroof = more hot chicks

Top
 Profile  
 
 
 Post subject: cam
Posted: Fri May 12, 2006 4:15 pm 
Stock as a Rock
Offline
User avatar

Age: 38

Posts: 135

Joined: 3rd May 2006

Gallery: 3 images

Power: 149 rwkw

Location: Bendigo
VIC, Australia

i'm lookin at a KEC cam or an ALTED cam or maybe a CROW cam, i want over 200rwhp using standard computer just to see how far i can push it before i go aftermarket chip etc, i'm currently getting 180rwhp at speed limiter, thats why im lookin at 4.11's

 

_________________

Skidz are cooooool!

15.49 @ 91MPH
2.327 60ft
Willowbank Raceway 14th October 2006
220k motor 320k auto

Top
 Profile  
 
 
Posted: Fri May 12, 2006 4:17 pm 
Parts Gopher
Offline

Age: 31

Posts: 90

Joined: 5th Jan 2006

Ride: svo

Location: melbourne
VIC, Australia

well if you wont that locker i think it is a 4.11 i can talk to my mate and see what he says and get more info about it for you

 

_________________

black ba xr6 with sunroof = more hot chicks

Top
 Profile  
 
 
Posted: Fri May 12, 2006 6:47 pm 
Getting Side Ways
Offline
User avatar

Age: 34

Posts: 2351

Joined: 11th Nov 2004

Gallery: 30 images

Ride: Blown XR8

Location: Melbourne
VIC, Australia

You'll still lose speed by getting 4.11's with 'only' that much power. YOu would need a substantial amount of power to be able to run them without slowing the car down over the quarter.
Top
 Profile  
 
 
Posted: Fri May 12, 2006 9:08 pm 
Getting Side Ways
Offline
User avatar

Age: 31

Posts: 896

Joined: 3rd May 2005

Gallery: 18 images

Ride: Blueprint EB II Fairmont 5L

Location: Wanneroo
WA, Australia

ryansvo wrote:
well if you wont that locker i think it is a 4.11 i can talk to my mate and see what he says and get more info about it for you

what is he just selling the locking centre or the whole diff, or the gear set and the centre ????
Top
 Profile  
 
 
Posted: Sat May 13, 2006 10:53 am 
Getting Side Ways
Offline
User avatar

Age: 36

Posts: 1249

Joined: 5th Nov 2004

Ride: Falcon

Location: Melbourne
VIC, Australia

And changin to a 9" will suck alot of power out of your combo, they are a massive unit and you will find that you're power figures will go backwards with it. Generally 9" diffs are best left to cars that will tear a normal diff to shreds, 200rwhp doesnt 'need' a 9".

I Dont know your gear ratios but 4.11's with my top loader from memory it is 3500rpm at 100, so might wanna have a really good think about it.

My suggestion is always leave the diff to LAST, dont change unless you need to, a diff can make or break a cars performance. And is best matched to you're cam, I cant emphasise enough that you should get your fast bits in there cam included and THEN decide if you 'need' a new diff ratio.

Whats the specs of the cams your looking at?

You say that you take it down the track a fair bit, what numbers have you got at the moment? and at what speed, you may find (and I assume you will being an I6) that it will run out of legs with a 4.11 on there by the end of the strip.

I'd say 3.7.... 3.9 would be a better guess if you really want to do it a** backwards.

 

_________________

I couldnt fix your brakes so I made your horn louder
Image

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 2  [ 19 posts ]  Go to page 1, 2  Next

Who is online

Users browsing this forum: No registered users and 14 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Thu Dec 14, 2017 3:28 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names