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  • Tf035 bigger turbine wheel

    Hi, I found out reason why tf035 runs out of puff at higher rpms. This was because of the turbine wheel is small and when exhaust gasses gets fast, the turbine wheel cannot handle the pressure which creates backpressure and then compressor wheel spins slower. Because of this Im thinking of getting af bigger turbine wheel. I already have a remap 197whp., stock turbo. Because of this I dont want to map the car again for a few ponies and pay $$$ for the tune. Will it be nescessary with a retune if I use bigger turbine wheel? Thanks for help

  • #2
    Yes - you'll need a re-tune.
    If you don't the engine will likely run lean and you'll destroy the engine.

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    • #3
      Originally posted by odysseyesm View Post
      Yes - you'll need a re-tune. If you don't the engine will likely run lean and you'll destroy the engine.
      Thanks

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      • #4
        You might as well go tdo4l. There's no point putting a larger turbine wheel on the exhaust side of the stock turbo.

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        • #5
          You can change to a TD04/15t in the factory Comp and exhaust housings. It will give you plenty more flow. If changing turbo beyond bolt on, there are far better options than a dirty old TD04L

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