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Blow Off In Stock R33 Gts-t


MilkShake
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I havnt blocked mine, nor will, But i always wondered wether the turbo stress is just people guessing.. RB20 Cefiro's dont have a BOV from factory, nor do most Diesel Hiaces etc.. So if it was a problem, why did Nissan not put one there on the Cefiro?

it does not spin backwards

the physics do not support the compressor or exhaust wheel or both spinning backwards with a blocked bov

the noise comes from a mid air collision of pressure that occurs in the pipework

its called compressor surge as the pressure spikes well past what the compressor can supply when the throttle body is closed and there is no BOV (or its blocked)

the excessive pressure makes the wierd chop chop tuutututu noise and places stress on the compressor wheel

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I havnt blocked mine, nor will, But i always wondered wether the turbo stress is just people guessing.. RB20 Cefiro's dont have a BOV from factory, nor do most Diesel Hiaces etc.. So if it was a problem, why did Nissan not put one there on the Cefiro?

True, but they are also running low boost........the higher the boost the greater the air density, the more need for a functioning BOV.

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Ahh yes this is true!

So essentially you could run no BOV on stock boost R32/R33?

I dont know for sure, but i'd assume that the Cefiro is running the same 10psi as an R32?

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