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Mazda RX-7 FD3S sequential turbo boost curve

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Uploaded by on Nov 13, 2006

This is not my video or my RX-7, and I can't remember where I got it from.

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Autos & Vehicles

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  • likes, 6 dislikes

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All Comments (21)

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  • nothing is wrong with the car..... this is the factory boost pattern with raised boost.

  • i have that same guage......lol. i was pushing 8psi...and it only read up to 5 lol

  • Your secondary turbo may not be at full spool upon opening the flapper. The 2nd turbo is spun prior to use, but the pressure created is held in, until 4500rpm. Check the exhaust flapper valve beween the turbos on the exhaust manifold for looseness. Stock pattern is 10-8-10. Basically the 2nd turbo is going too slow when the system releases the built up pressure.

  • Maybe Leaking BoosT?

  • Its an autometer, prolly mechanical. So yea, its likely a piece, but if that is accurate the spikey is no good.

  • whats the MPG ?

  • hmm, im thinking massive boost leak a or problem with the boost controller opening or leaving open the wastegate. I have a first gen, so i dont know much about the third gen setup, but i do recall their computers did have some issues.

  • I agree. Twin Turbos can yield better results but all those vacuum lines just get in the way and make freeing horsepower seem like pulling teeth. Single turbo is the best way to get more power with less complications

  • Mine goes to 12 real quick, then back down to 5-6 then works its way back up to 12ish...is mine fucked too?

  • yes, go non-seq

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