Diff Gears Xr6

[brett_xr6]

Hi guys,

I have a BF XR6 NA with a 6 speed manual Transmission. Could anyone tell me what the existing diff gear ratio is in the car? Also I have heard people say that upgrading to a 4.1:1 will use a great amount of fuel, but given that I have the 6 speed manual would it be better than using the 4 speed auto in terms of consumption? I was thinking that since there are more gears it would keep the revs a little lower, but I am not sure.

What would be the best ratio for my car to keep a balance of daily and a little more punch off the mark.

Cheers

Brett.

[Guest]

What other mods have you done mate? Diffgears give you a small increase in accelleration but bang for buck there's heaps of other mods that are better...

Do a search & have a read as there's heaps of info already on here

[brett_xr6]

So far I have done a typhoon cold air intake with K&N filter, Herrod stainless steel exhaust and headers, under drive pulley and its about to go in for a custom tune. I heard that it is best to have everything fitted before a tune hence why I was starting to consider the the diff gears.

that's pretty much everthing you can do to the NA before looking into cams etc, and to be honest if I was going to do that I may as well have joined all you turbo guys.

[Guest]

I'd just go with a tune & underdrive pulley then leave it. Diff gears just aren't worth the $$$ imo & that's speaking from experience. When I went from 5 speed to 6 speed in the old T I changed diff gears from 3.45 to 4.1's, noticed a little difference but not $1500 difference