CBS65-6005 – Valve Spring Kit S65 (E90 E91 E93 M3)

CBS65-6005 – Valve Spring Kit S65 (E90 E91 E93 M3)

$900.00

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S65 engines have had broken valve springs issues. CarBahn with its enormous Race engine experience has produced High performance valves made with the same materials and process as their race engine valves springs. Thes valve springs have won 3 Prototype racing championships and two 24hr of Daytona overall victories. These are the highest quality valves springs available on the market.

Theory

The goal of a valve spring pressure is to make it as low as possible. This is because compressing a spring takes energy and robs potential power. In addition, more valve spring pressure increases valve train wear. We work very hard at running just enough valve spring pressure to keep the follower in contact with the camshaft but no more. If you increase the RPM you increase the valve spring just enough to manage the inertia from the increased RPM. The valve spring also needs enough seat pressure and the correct frequency not to bounce when the valve is closed. This is to avoid leaking trapped mass (the fuel air charge).

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Additional information

Weight 3.5 lbs
Dimensions 7 × 5 × 3 in

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Vehicles

Vehicles Description

Make Model Year
Make Model Year
BMW M3 2008
BMW M3 2008
BMW M3 2008
BMW M3 2009
BMW M3 2009
BMW M3 2009
BMW M3 2010
BMW M3 2010
BMW M3 2010
BMW M3 2011
BMW M3 2011
BMW M3 2011
BMW M3 2012
BMW M3 2012
BMW M3 2013
BMW M3 2013