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Do you mean Bi-Turbo? I've never heard of Bit-Turbo. Well Bi-Turbo mean two turbo chargers.
jon
 

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I believe that Bi-turbo would be sequential turbos, but I could be wrong. This is where a small body turbo is used to force feed a larger body turbo, in an effort to reduce the lag at take off. In contrast, a twin turbo would be two identical turbos, each handling the delivery of air to one half of the cylinders on the motor, and each running off seperate headers on either side of the motor.

Hope this helps, and you more knowledgable guys can feel free to correct anything you need.
 

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S4's and A6 2.7T's are bi-turbos and im pretty sure they have the two of the same turbos, one for each bank.

Edit: I think the 300zx uses the sequential turbos your talking about fli.

[ May 14, 2003: Message edited by: GTIboarder ]
 

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Actually, the Z was a TT (Twin Turbo). The Supra and RX7 were sequential.

There was a built RX7 that was actually running a triple turbo setup, with the smallest one being about the size of our K03.

Of course, it was also pushing like 1200 HP at the wheels and had a tube frame.
 
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