I've done the 10 psi pulley upgrade on my otherwise stock L67 VT. How do these rockers work with that? Siya September 29, 2023 19:49 These rockers work like a small cam by basically increasing the engine's intake and exhaust valve lift, which ultimately makes it easier for the engine to breath, making more power. Related articles I’m planning on putting a smaller pulley on the V6 VT with a stock L67 engine. I’m just after some information on how much psi I can put into my motor before it starts doing damage or my supercharger spins to fast and doesn't work? 5. L67 3.8L Supercharged V6 Extreme Package I recently purchased some 1.98 ratio rockers for my Holden VU II Storm and now the engine has a constant ticking sound, these where installed by a licensed mechanic as well and are fitted 100% correctly, are you aware of what may cause this sound, also th On Mace's 10psi pulley upgrade it says 98 octane fuel is required, how do these go against the LS1 engines? Is it possible to run the L67s on E85 for more power? The current modifications are 10 psi pulley, 1:9.1 rockers, HSV exhaust K&N filter. What would I require apart from a tune? Comments 0 comments Please sign in to leave a comment.
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