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  1. 03-12-2025 01:57 AM #1
    cwfao
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    Srm k24 mamba gates - what cracking pressure?

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    Have replaced old wastegates with mamba. Both gates were leaking bad so couldn’t test what crack pressure was, not sure if they were the 0.8 or 1 bar gates.
    Have put the 1 bar springs in these gates and set the crack pressures to 14.5. Car is on 23psi, this sound right?
    Cheers fellas
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  2. 03-12-2025 03:46 AM #2
    TwoSnelz
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    2001.5 Audi S4
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    Can you just ask your tuner or are you tuning yourself/nefmoto'ing


    Edit : Sounds about right.

    Sent from my SM-G973U using Audizine Forum mobile app
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  3. 03-12-2025 04:28 AM #3
    cwfao
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    Can’t get in contact with tuner, car was tuned maybe 6 years ago.
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  4. 03-12-2025 10:01 AM #4
    Cybersombosis
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    Cracking pressure is usually half the peak boost.
    2001.5 Audi A4 1.8TQMS - Brilliant Black on Black Onyx Sport Cloth
    Motoza Hybrid K04 Tune, FT F4-H, Bosch EV14 550cc, AEM Water/Meth Injection, Majesty FMIC, SSAC Cat Back Exhaust, Podi Boost Gauge, ATP Test Pipe, K&N air filter, HID fogs, eBay short shifter, Aero wiper kit, Eibach Pro-Kit springs, 18” B6 Ultrasport, Firestone Indy 500.
    2001 Audi S4 SRM K24 RS6 build
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  5. 03-12-2025 10:06 AM #5
    CELison
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    If your cracking pressure is different from when the car was tuned your max boost will also be different. You can try to log requested vs actual boost. FYI I ran my gates tight on my K24s. 18psi crack.
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