Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post

Blacklines86 · 10-14-2010, 01:17 AM

Assuming one is already following Codyaces recipe for a 400+ HP SR, I have a couple head questions.

What advantages are there to upgrading to aftermarket valves, and valve guides besides extra strength? Can better flow can be expected from +1mm valves? Or are valve upgrades unnecessary at the 400-450 hp range?

10-14-2010, 01:17 AM	#30
Blacklines86 Zilvia Junkie Join Date: Mar 2010 Location: Japan Posts: 305 Trader Rating: (32)	Assuming one is already following Codyaces recipe for a 400+ HP SR, I have a couple head questions. What advantages are there to upgrading to aftermarket valves, and valve guides besides extra strength? Can better flow can be expected from +1mm valves? Or are valve upgrades unnecessary at the 400-450 hp range? Last edited by Blacklines86; 10-14-2010 at 01:17 AM.. Reason: Spelling........