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

vqholic@Korea · 10-05-2021, 04:29 AM

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

redondoaveb · 10-05-2021, 10:10 AM

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

vqholic@Korea · 10-05-2021, 10:43 AM

Quote:

Originally Posted by redondoaveb

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?

redondoaveb · 10-05-2021, 11:15 AM

Quote:

Originally Posted by vqholic@Korea

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

10-05-2021, 04:29 AM	#1 (permalink)
vqholic@Korea Base Member Join Date: Nov 2019 Location: Republic of Korea Posts: 37 Drives: 10 Nissan 370z SC MT Rep Power: 55	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 Last edited by vqholic@Korea; 10-05-2021 at 10:20 AM.

10-05-2021, 10:10 AM	#2 (permalink)
redondoaveb A True Z Fanatic Join Date: Apr 2017 Location: So. Commiefornia Posts: 6,360 Drives: 2014 Nismo Gunmetal Rep Power: 2684374	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 vqholic@Korea likes this. __________________ Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo 700+whp

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