Advancing or retarding the camshafts in relation to the crankshaft is another performance tool you have to move your power and torque exactly where you want it. 

Advancing a camshaft opens the intake earlier and closes the exhaust earlier. This will shift the power curve down, and produce more low range torque at the loss of a little top-end power.

Retarding the camshafts shifts the power band up, increasing mid-range and top-end torque, at the loss of the bottom-end. 

Its easy to do on the 16v 928 and 8v 944 engines - removing the timing belt, then camshaft sprocket, replace the key and re-assemble. 

We also have longer offset keys for the 32v 928, 951 and 968, for use in the same way when combined with the cam adjustments provided on Page 15-134 of the WSM. 

Precision Made: These camshaft keys are precision machined to an exact fit for all Porsche and Mercedes camshafts using 4mm keyways. 

Each kit includes:

• One 2-degree offset key
• One 4-degree offset key
• Enough to tune one 4 cylinder engine (single camshaft)
• For V-8's, buy two sets (as shown) 

Ordering information:  The early Porsche 928 and 944-2 valve per cylinder engines use camshaft keys that are 16mm long.  The 4-valve per cylinder 928, 951 and 968 engines use slightly longer 22mm keys. Specify when ordering.  

Questions About This Item? Contact us

• toll-free at 877-FOR-928M
• in the US at 920-485-0928
• International at 001-920-485-0928
• email your question to info@928motorsports.com

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