Hello
Have anyone seen this : TRS-J76 , belt driven supercharger
link :
http://turboresearch.en.alibaba.com/product/542084172-213562670/supercharger_TRS_J76.html
http://www.cnracing.com/new.html
http://www.turboresearch.com.cn/supercharger.html
http://www.globalmarket.com/product-info/supercharger-trs-j76-519051.html
Wrong unit weight in specs right weight is 5,5kg
Could it be worth a try?