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Breaking engine mounts at 580rwhp

Blakeo

By Blakeo,
in R Series (R30, R31, R32, R33, R34)

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Blakeo Rising Star

Blakeo

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Is this a common thing? Last time I took it down to the drags I broke the stock engine mounts, they were brand new when the engine went in - but I guess they aren't designed for the increase in torque/kickback the engine has now. 

I ordered a set of Nismo mounts which are meant to be 30-40% stiffer. I got a fair few passes out of these and have been in the car for the last 12 months, but again the drivers side engine mount has broken. 

Is this common on higher hp rb's? Am I missing something, all the drivetrain alignment is the same as factory and the car has no vibration. I need to get it over the pits because I recently got yellow'd but afterwards, I am going to try out Tuff Mounts. 

 

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