Diff Gears installed

[chook]

Just had the new 3.9's diff gears installed but was told to take it easy for the first 300k's so haven't given it a bootful yet. My initial reaction is (difference but not as much as I expected). Anyone had the same reaction. Haven't done speedo yet @ 100kph reads approx 112kph, does that sound about right?

[DaveHAT]

Yep found the same thing with the speedo reading Chook. Wait until you've had a chance to run the gears in, then see what you think when you boot it in 1st gear. Combined with edit or tuning the 3.91's/tune tie in well together.

Best part I found is that 6th is now a usable gear at 100 & not just a numerical decoration on the gearknob.

How are you going to get the speedo re-adjusted through edit or tech2?

[chook]

Probably get the speedo done through edit if I can. I'm sure once I run the gears in a bit it will feel better, Haven't been over 100k's yet.

[DaveHAT]

Probably get the speedo done through edit if I can. I'm sure once I run the gears in a bit it will feel better, Haven't been over 100k's yet.

Agreed. Once you can "DRIVE ;) " it again you'll notice more of a difference. Usually called 2 black lines :D

If you need a quick fix presuming you're SS hasn't been edited/tuned yet (apologies if wrong) your new speedo ppk number can be worked out this way:

OLD PPK / CURRENT DIFF RATIO x NEW DIFF RATIO= NEW PPK


Be patient, the fun is coming ! ;)

[OscarTheGrouch]

Yep, must admit when I had mine changed I didn't notice as much difference as I expected - until I got it tuned!

I reckon it's partly a psychological thing too, because you can't really see what speed you're doing....

[Ryzz]

Best part I found is that 6th is now a usable gear at 100 & not just a numerical decoration on the gearknob.
Ill keep that in mind when i get mine installed. Althought it must be the whole "Better than a LS1" because i use 6th from 80 onwards already with 3.46 :stick:

[Modena]

Ill keep that in mind when i get mine installed. Althought it must be the whole "Better than a LS1" because i use 6th from 80 onwards already with 3.46 :stick:
yeah but you have a lump of iron to pull you along :p

[Ryzz]

yeah but you have a lump of iron to pull you along :pWell it beats your lump of alloy if my iron block can pull me along at 80 and your crome plated alloy block cant :booty: :moon: :moon: :booty:

[chook]

Actually has been edited but as mentioned , haven't driven it properly, I'm sure once I get over 3k I'm going to notice it a bit more, perhaps I'm just getting used to the edit these days. As the old saying goes it's never enough.

[SV8VY]

I found that it is actually about 20 km difference.
If you are doing 100 you are actually going 80.
I also wasn't very impressed with mine then I went to get the Speedo adjusted and being green at that time didn't know about the edit.I asked what else I can do and he said not much with a V6 ...I said its the V8 and his eyes lit up...needless to say after an hour or so the car was totally different to drive with the edit and gears.
I only gave my diff gears 200 km before giving it a thrashing.They must have coped a hiding on the rollers as they did about 7 power runs when editing.
I use synthetic diff oil every 10 k also.
Even from new I changed at 1 k then 5 ,then every 10.

[Jozo]

I too didnt notice a great deal, although 2nd's are easier to pull.

for me, its the mentallity of reading a speedo that is off by around 20kph. Gonna have to book it into sams when i have time for an edit.

[VT2_SS]

Chook
gear change makes car far more driveable.

Speedo will be out about 13%, new PPK is 7129 if having Dealer reset via Tech2, otherwise Edit will fix.

cheers
VT2

[SLIPPERY]

Hey Chook
Got the 3.91s done in my car with a built a4, big difference, probably coz im missing two cogs. smokes hard all the way thru third, scary in the wet but lots of fun!

[Clubby250]

Well it beats your lump of alloy if my iron block can pull me along at 80 and your crome plated alloy block cant :booty: :moon: :moon: :booty:


dont mean to be mean but to much fun havin a stab at you

from a few photos ive seen of ur car in the last few days you could have 4.11's for all its worth, but the only pulling ull be doin aint gunna be in ur car

[Ryzz]

dont mean to be mean but to much fun havin a stab at you

from a few photos ive seen of ur car in the last few days you could have 4.11's for all its worth, but the only pulling ull be doin aint gunna be in ur carHitting a man while he is down, isnt that like hitting a guy with glasses?? :cool:

Besides, is that the best you could come up with?? Ive already proven how much better my stroker is over the LS1 and your yet to give me any proof it aint :moon: :moon:

[Holden Nut]

Hitting a man while he is down, isnt that like hitting a guy with glasses?? :cool:

Besides, is that the best you could come up with?? Ive already proven how much better my stroker is over the LS1 and your yet to give me any proof it aint :moon: :moon:
What have you done to your stroker to make it better than an LS1?

[Clubby250]

he hit some one to get insurance money, so he could get some dosh to get something better then an ls1

and that would be an LS2

and no ryan i didnt get OWNED

:booty:

[Ryzz]

What have you done to your stroker to make it better than an LS1?I didnt need to do anything to make it better :stick:

[Ryzz]

he hit some one to get insurance money, so he could get some dosh to get something better then an ls1

and that would be an LS2

and no ryan i didnt get OWNED

:booty:
Gotta get your facts straight mate, they HIT ME :booty:

[Holden Nut]

I didnt need to do anything to make it better :stick:
I see...so are you being serious or joking or what :hmmm:

[Ryzz]

I see...so are you being serious or joking or what :hmmm:
:lol: you obviously dont know when someone is shit stirring :booty: :booty: :D

[Holden Nut]

:lol: you obviously dont know when someone is shit stirring :booty: :booty: :D
Yeah its hard on the net :o