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Rb25det Engine Mounting


R33A31
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Hi All,

I'm in progress transplant the A31Rb20det to Rb25det but my concern:

1. The engine mounting are totally different with A31 & R32. Can I use the complete R33 crossmember to my A31 ?

Thanks in advance.

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If I've deciphered what you said correctly, I think you are planning to replace the RB20DET in your A31 Cefiro with a RB25DET from a R33 Skyline. Is that correct?

How are the engine mounting systems "totally different"? If they are "totally different", have you considered just swapping the "legs" and rubber mounts from your RB20 onto the RB25? AFAIK, a RB-series engine is a RB-series engine. (I know a RB25DET drops straight into a R32 GTS4)

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The crossmember base for rubber mount are different angle. I'm prefer to use the Rb25det engine leg due to the material are alloy but Rb20det are steel.

I will follow ur idea, just change the Engine lleg & rubber mounting. Thanks alots

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