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      02-05-2008, 05:00 PM   #1
MaSt0RaS
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Atb quaife deifferential

What do you have to say about this differential to a z4 2.5si is it worth to put on the car?
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      02-11-2008, 04:55 PM   #2
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Depends, do you regularly track your car?
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      02-12-2008, 05:23 AM   #3
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Nop , but iam asking if the car will be better and without problems...What differential do you suggest to me?
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      02-12-2008, 08:25 AM   #4
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What gearing are you looking into? I believe your 2.5 comes with a 3.46 from the factory, so you have to step up to something pretty steep if you really want to get your go fast from your diff.

I hear a lot more of the 3.0s changing diffs, going from the stock 3.07 open to the 3.46LSD. Personally, you could just change your open to LSD by getting an M diff and swapping it out, that wouldn't change the ratios but would be a nice upgrade regardless.

Check out diffsonline.com they build great equipment.
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      11-17-2008, 04:30 PM   #5
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Quaife, The Ultimate Differential is now in stock for your Z4 3.0 at HP Autowerks, Inc.

"The Quaife torque biasing differential enables your car to accelerate quicker and corner faster. How?

By getting the power to the ground!"


"In drag-race style, straight-line acceleration runs, this results in a close to ideal 50/50 power split to both drive wheels, resulting in essentially twice the grip of an ordinary differential (they don't call open diffs "peglegs" for nothing).

In cornering, while accelerating out of a turn, the Quaife biases power to the outside wheel, reducing inside-wheel spin. This allows the driver to begin accelerating earlier, exiting the corner at a higher speed."

If rebuildable diff cores become available, we will offer complete diff housings with the Quaife installed and ready to bolt in!!! Price TBD.
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      11-23-2008, 10:12 AM   #6
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if you have 5 gears, not 6, I wouldn't recommend it
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