Actually the variocam changes over at ~5,200 RPM.. If you lacked variocam the midrange would suffer, not the top end. The solenoid that actuates VC gets zero power in the upper RPM ranges, after changeover..
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Jake Raby/www.flat6innovations.com
IMS Solution/ Faultless Tool Inventor
US Patent 8,992,089 &
US Patent 9,416,697
Developer of The IMS Retrofit Procedure- M96/ M97 Specialist
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