Bangers

Anyone recommend a place in Brisbane to get a 3.9 LSD fitted on my AU2?

Do brands matter? (are they even brands?)
How will this effect my car? Acceleration/Handling/Braking?
Will my speedo need to be recalibrated?

I want to get it done because I got the dreaded clunky diff and it really shits me off :(

Currently the only mod on her is exhaust.

dodge

find a 9" i have centers.

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ebxr8240

IRS????

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Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
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Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
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wag

Try harts transmissions at brendale. I have heard some good reports from there.

OED666

Mal Wood Automotive!!!

I had my diff rebuilt there, and Rollin got 3.9's and a diff rebuild there a month ago...

send a PM to WBT56

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BUILT FORD TOUGH!!!

sylox

I've got 3.9's in my xr8 and Grunter had 3.7s in his xr8 both of us had them Done At Mal Wood Automotive in Warwick (Along with most of the QLD XR Club members Who use Mal Wood Exclusivley for Driveline work) .
A1 service
extremly cluey guys and always keen to explain the workings of anything.

Mal And Ben are Champs


EDIT: Removing Beer induced typos

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OED666

sylox means Ben, not bed...

I agree... They know there stuff!!! If you want it done right the first time then we have told you were to go!!!

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BUILT FORD TOUGH!!!

sylox

I dont know what your talking about OED666

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Bangers

Thanks guys, I'll checkout Mal.

I'm still very curious about how it will effect me in the end. Becuase the engine is basically stock except for K&N, and exhaust+extractors.

From a stock AU2 forte with the annoying clunky diff, to a 3.9 LSD, what will it change? I'm assuming the clunk will go, buth how will it effect acceleration/braking/speedo or handling?

Thanks :)

sylox

Handling with improve as you will be able to put more power down whilst exiting corners due to the better traction a LSD offers.

Mal will correct your Speedo with a gear that suits so that isnt an issue.

Acceleration will improve a bit, BUT I have experienced huge torque limiting from the ecu since doing 3.9's in a Au2 xr8 auto. I dont believe the I6 is limited as hard as the 8 though after in depth discussions. So the gain will be there for sure but an EDIT will be advisable in the not to distant future to get the most out of it. (Should be available just after christmas at this stage i believe)

If yours is an auto your speed limiter will be lower than before (not really an isssue unless its for track use J3 chiptorque or Edit will fix this)
Also your shift points Eg where the auto changes up, may differ a little bit but should still be drivable. Once again an edit or a chiptorque j3 program can fix this.

Bear in mind your rpm at 100kph will increase and I would say that 3.9's in a i6 would put you at a guess around 3000rpm. (ask OED666) Meaning more fuel usage. But anything around 2300 should be ok ask Mal about this.


Clunk will be compltely gone provided its the diff as Mal and Ben will completely rebuild it. Make sure the noise you are hearing isn't your tail shaft.

Speaking of tailshaft I'm not sure what they are like in the sedans but the utes need a 2 peice one as the factory 1 peice item is a nasty bit of gear

I hope thats helped you out a bit and please feel free to correct me on anything I didnt get quite right


Andrew

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