The Chargers are 18-7 overall.
"We definitely are peaking at the right time," Lambright said. "You want to play your best baseball in May, and we are doing that. We want to close out the regular season strong and be on a roll heading into CIF next week."
Junior Henry Owens (10-1) tamed Newport Harbor (5-9 league) with a 17-strikeout, five-hit performance that enabled him to become the school's record-holder for strikeouts (127) in a single-season.
The old single-season record was 124, Lambright said.
Edison pounded out 15 hits off four Newport pitchers, with juniors Christian Lopes and AJ Libuno each hitting a double.
The Chargers earned a portion of the Sunset title Friday with a 5-3 win over rival Fountain Valley. The win went to senior Nic, Hanson (7-1). Senior Kyle Jones homered and Lopes had three hits.
Edison also defeated the Barons, 12-3, on May 5.
The Seahawks clinched a share of the Golden West League title Tuesday with an 18-2 rout of Saddleback on Senior Day at Ocean View.
All six seniors started the game, including regular starters Matt Larsen (center-field), Kevin Nance (third base), Aaron Delgado (shortstop) and Nick Schulenburg, who normally plays first base but started behind the plate. Alden Mathews started at first base and Kris Lendrum in right field.
Junior Blake Walker picked up the win to run his league record to 6-0. He also was a big contributor on offense with a single, double, run batted in and two runs scored. Walker increased his school-record runs total in a season to 38 (the former record was 32 set in 1993 by Steve Rivera).
Ocean View fell behind, 1-0, but scored four runs in the bottom of the first on a rally started by back-to-back singles by Colton Johnson and Walker.