Quote:
Originally Posted by RyanWest
Why the high compression???
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Are you asking about the 10:1 pistons? It increases the the low boost performance by raising pressures to spool the turbos faster and provide more torque, of course anyone going over 15psi would be better off with the current 9:1 offerings as eventually with more boost the higher ratio is going to raise pressures too high. but for the guys in the 550-700 range it will be a more efficient built motor.
At high power levels the 9:1 motor will see less stress than the 10:1 motor, but the 10:1 more will make more power for the amount of charge it gets.