I've a BF and stock ZF6 speed, had anyone tried to put higher diff ratio for better acceleration for this ZF?

Which workshop in Melbourne would do this stuff - tried and proven reliable by anyone of you guy?

I would prefer some ratio between 2.9~ to 3.1 ( I dont know the exact numbers) however, fuel wise is still my 1st priority

I just want a better acceleration than stock diff ratio. and if with new diff, who can recalibrate the speedo? my tuner or ford service?

is it hassle-free to fix up the speedo with the new diff ratio?

Cheers

The diff ratio shouldnt effect your speedo, the speed sensors are on the hubs if I remember correctly.

You have to remember that 1st gear in the ZF is very short, and a shorter ratio is going to make it just about useless.

Best bet would be to get a tune if you haven't already, would be cheaper than changing diff ratios and there is a good chance your fuel economy will be better

Flash box + tune will be less then swapping out diff gears & you'll not only better your accelleration, but get better overall performance as well as better economy. Win win

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Get an edit and never look back.

agree with all posts here, tuners can also do amazing things with the ZF6 especially through SNIPER. They can tighten shift points and if you like that kind of thing they can make it churp at every aggressive gear change etc...

My ZF6 changes gear heaps harder since the tune

That's an edit thing that can be changed via SCT, Sniper or Advantage. Not limited to just Sniper IB

That's an edit thing that can be changed via SCT, Sniper or Advantage. Not limited to just Sniper IB

Huh?

I.B.

Think he meant Inducted_Breeze dude...

it made ~320rwkw on Nizpro dyno, I've heard with better diff ratio you can cruise to low 12s ezily that's why I asked. thanks for all inputs anyway

Edited 17/12/08 03:39 AM17/12/08 03:39 AM by RED DNA

With ~300rwkw in a ZF auto you should be in the 12s already mate, MTs might get you low 12s, or you could just push the engine a bit harder