The serpentine belt flew off. just one drift. 370z a2a supercharged
 

Hello! The setting of my car is changed to 9 lbs pulley( #407737-13) in a soho-a2a-supercharger-kit, and it is a turbo guard without a filter. Max boost is 12.5 psi.

There was no problem with grip driving on a few tracks.

Yesterday, during drift practice, the serpentine belt came off. I was embarrassed and soon floated the car and put the belt back on.

I can't believe my belt is loosened at once.
I ordered topgunz's anti-slip pulley, but I'm the only one who runs a2a in Korea where I live.

What parts do we need to prepare so that the belt doesn't fly away?



I need help...

serpentine belt- k071045

You could try the Gates K071040 instead of the 45. It's 15mm's shorter. That's what I ran and never had any issues

Thank you redondoaveb. I didn't know until today that my pulley was 2.75 inches in diameter.

idler pulley is a stock part. Can I use it as it is?

If your pulley is a 2.75, that would be the 10lb pulley. The 9lb pulley is 2.87. I would definitely use the K071040 belt then. Idler pulley is fine