crankshaft

FZR400 Forum

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Mouser
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Posts: 14
Joined: Tue Oct 11, 2016 3:52 pm

crankshaft

Postby Mouser » Tue Nov 27, 2018 6:06 am

Hi,

I'm about to get the engine ready for the next racing season.

I wanted to slim the crankshaft down. I got in contact to a tuner in Germany who did a lot of tuning on the fzr's in the 90' and later.

The thing is that he claims that the 400 crankshaft is to light to slim it more....it would than behave "too flexible" as he says and damage the crankshaft bearings quite quickly....

On the other side BDK....those who tune their engine do know BDK, no need to explain their reference in fzr's......they do lighten it by 1.6kg

https://www.bdkraceeng.co.uk/Sv_crankshaft.html

Does anyone have experience with this?

Regards
Chris

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