yeah well i want the best for my car what ever makes it go harder! the 1.97s over kill?
The 1.9's are Awesome
The 1.97's are Incredible
The 1.9's deliver approximatley 10-20kW Power Gain and 20-30Nm Torque Gain
The
1.97's deliver approximatley 15-25kW Power Gain and 20-35Nm Torque Gain
That's as much as most Mild Cams !!
The 1.97 Ratio translates to .510" Max Lift to the Valve.
The Valvespring is capable of .560" before coilbind so there is heaps of headroom.
The 1.97's are easily the best Rocker we have ever produced
We have been making 1.9 rockers for 6 years now and running them on stock valvesprings and never had any reports or instances of them binding or breaking.
So are they an Overkill ? ...
No they are purely and simply the max amount of safe lift we are currently prepared to release to the public. If you want the max performance these are the highest power producing rockers currently available on the V6 market.
The Higher the Ratio the more Valve Lift and the Greater the Resultant Power
Higer Ratio = More Valve Lift = Greater Power
The 1.99's and 2.02's we have in our development vehicles may be considered the borderline of Overkill and we are not retailing these until we have done extensive 1-2year durability testing.
Hope this helps.
Regards
Tonsta