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
1.7 rr with twisted wedge heads help?
- Thread starter bradranger
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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
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
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