2020 Small Block Penalty Box Race Sign Up
This was a huge drop in e.t. from the last time at a track.
Mods were 340 manifolds to headers. X-pipe to H pipe. Accurate mufflers to Magnaflow. Same tailpipes.
IMO the X was too large and the mufflers a bit restrictive and were going to get changed even if I had not had headers built.
Tuning steps, which also was done irrespective of headers, was mostly a rework of the timing advance, lower and reduce the secondary idle feed restriction and reduce the secondary HSAB.
The difference is apparent from the 60' onward.
Geez. That was 7 years ago.
What I can do to improve:
Better driving.
Work/test shift points.
Restrict primary PVCR
Experiment with faster secondary opening
This was a huge drop in e.t. from the last time at a track.
Mods were 340 manifolds to headers. X-pipe to H pipe. Accurate mufflers to Magnaflow. Same tailpipes.
IMO the X was too large and the mufflers a bit restrictive and were going to get changed even if I had not had headers built.
Tuning steps, which also was done irrespective of headers, was mostly a rework of the timing advance, lower and reduce the secondary idle feed restriction and reduce the secondary HSAB.
The difference is apparent from the 60' onward.
Geez. That was 7 years ago.
What I can do to improve:
Better driving.
Work/test shift points.
Restrict primary PVCR
Experiment with faster secondary opening