bradranger Member Dec 30, 2003 50 0 17 Hollywood,Maryland Sep 28, 2007 #1 Sep 28, 2007 #1 Hi, I purchased the twisted wedged heads and a tf stage 1 cam, my question is has anybody ran this setup with 1.7 rr and stock pistons? I know I should clay it but if somebody had problems with this I will have to return for 1.6's thanks
Hi, I purchased the twisted wedged heads and a tf stage 1 cam, my question is has anybody ran this setup with 1.7 rr and stock pistons? I know I should clay it but if somebody had problems with this I will have to return for 1.6's thanks
5spd GT "the 5.0 owns all" Founding Member Aug 7, 2002 9,516 6 99 Arkansas Sep 28, 2007 #2 Sep 28, 2007 #2 The timing at the valves changes a bit, in particular the valve lift and speed that the valves open and close. Luckily, near or peak lift occurs when your piston is near 2 inches GOING DOWN in the piston cylinder wall The added lift the 1.7 roller rocker gives should not affect your p-v clearance numbers in where you can't run the cam. The best thing to do though, is check Some extra information for you TFS 1 - 221*/225* - 275*/279* - .499"/.510" - .312"/.319" - 112* - 108*/116* - 2,000-5,500 RPM 1.6 Rocker Ratio Intake Opening: 3* BTDC Intake Closing: 38* ABDC Exhaust Opening: 49* BBDC Exhaust Closing: 4* BTDC Recommended Valve Springs: TFS-51400413 with 1.6 ratio rocker arms Recommended Valve Springs: TFS-31400414 with 1.7 ratio rocker arms
The timing at the valves changes a bit, in particular the valve lift and speed that the valves open and close. Luckily, near or peak lift occurs when your piston is near 2 inches GOING DOWN in the piston cylinder wall The added lift the 1.7 roller rocker gives should not affect your p-v clearance numbers in where you can't run the cam. The best thing to do though, is check Some extra information for you TFS 1 - 221*/225* - 275*/279* - .499"/.510" - .312"/.319" - 112* - 108*/116* - 2,000-5,500 RPM 1.6 Rocker Ratio Intake Opening: 3* BTDC Intake Closing: 38* ABDC Exhaust Opening: 49* BBDC Exhaust Closing: 4* BTDC Recommended Valve Springs: TFS-51400413 with 1.6 ratio rocker arms Recommended Valve Springs: TFS-31400414 with 1.7 ratio rocker arms