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Location:
Cabramatta, NSW
Registered:
May 2002
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Re: Toyota lexus and mazda turbo systems
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Tue, 16 March 2004 04:36
 
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The system that Mazda uses in the FD RX-7 uses two turbos of different sizes.
The small turbo spools up first 'coz it's small and masks the lag of the larger turbo. The larger turbo takes over in the top end where the small turbo runs out of puff.
Not sure if there's a switch over or if both turbos are always run.
The sequential system of the 2JZ-GTE found in the Supra has two turbos of the same size. One is on constantly, the other is brought on at about 4,000rpm where it provides more breathing.
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