Differences in gear ratios have a measurable, direct impact on vehicle dynamics, performance, waste emissions as well as. The 380NM is for 3rd and 6th gears while all others are 440Nm.Below is a table of reference gear ratios as provided with the ZF 8HP transmission, though actual implementations may differ depending on the tuning and specifications of individual vehicle manufacturers such as BMW and Audi. As an example, the 8HP45X as fitted to the 2.0D 184bhp, has two torque limiters set at 380Nm and 440NM. #4 indept Senior MemberSo, what are the benefits of tuning your ZF8 gearbox? All automatic gearboxes have maximum torque limits which prevent the engine from developing its potential maximum power. However, this is much cheaper than replacing the transmission as most out there are new. All told, you’re looking in the $4k range if you’ve got no internal gear damage and just replace gaskets, friction material and seals. campervans for sale scotland Add ZF spec fluid to this at another $200 if you didn’t negotiate it into the install. The 380NM is for 3rd and 6th gears while all others are 440Nm. Can't see how diablo can improve it.So, what are the benefits of tuning your ZF8 gearbox? All automatic gearboxes have maximum torque limits which prevent the engine from developing its potential maximum power. With the paddles it's an all out beast that shifts extremely fast. In auto it is always in the right gear with smooth shifts with little to no lag. In Sport it already shifts extremely fast and hits fairly hard. I totally get that the manual WRX is far more engaging, and especially for an enthusiast car, more engagement is more important, but for the people that want a WRX without the need to manually shift, is the SPT (CVT) in the new WRX really that bad, from all the reviews of it, it seems fine, and actually are stated to be pretty good.As an owner of the zf A8 I just can't see were the tranny can be improved.
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