2025 Sonoma Raceway R1 R2 IM1A IM1 S1 IM2A IM2 S2 IM3A S3

Sonoma Raceway - R1

2025-03-29

SHIFT OPTIMIZATION

Field Performance Summary

Winner Score

63.6/100

#1 ranked driver

Average Score

59.7/100

Last Place Score

50.8/100

Lowest ranked

Drivers Analyzed

Shift Optimization Leaderboard

Ranked by lap count, then average score

Rank	Driver	Score	Avg Shift RPM	Power Band %	Rev Limiter Hits	Early Shifts	Laps
#1	Will Robusto #2 • RVA Graphics Motorsports by Speed Syndicate	63.6	5633	81.0%	12	192	26
#2	Massimo Sunseri #51 • BSI Racing	62.9	6110	81.2%	29	232	26
#3	Ayden Kirk #47 • TechSport	62.9	5958	79.8%	9	282	26
#4	Christian Weir #71 • TechSport	62.4	6033	78.7%	7	303	26
#5	Miles Hewitt #17 • van der Steur Racing	62.1	6323	77.2%	43	223	26
#6	Jackson Tovo #31 • Nitro Motorsports	61.8	6024	79.9%	13	300	26
#7	Zach Hollingshead #88 • PT Autosport with Copeland Motorsports	60.9	6154	77.4%	26	244	26
#8	Paityn Feyen #80 • Nitro Motorsports	60.7	6084	75.3%	9	269	26
#9	Jason Kos #3 • Eagles Canyon Racing Powered by Fast Track	60.2	5997	74.1%	6	286	26
#10	Alex Garcia #14 • Skip Barber Racing	60.1	6033	73.2%	8	296	26
#11	Farran Davis #11 • RVA Graphics Motorsports by Speed Syndicate	59.5	5897	75.0%	21	296	26
#12	Casey Mashore #50 • Mashore Autobody	59.2	6193	73.4%	22	253	26
#13	Ethan Ayars #78 • Nitro Motorsports	58.8	5809	70.2%	27	251	26
#14	John Lennon #12 • Copeland Motorsports	56.3	5773	65.8%	10	238	26
#15	Lucas Weisenberg #46 • Lucas Racing	63.6	6193	83.5%	19	251	25
#16	John Dean #16 • Copeland Motorsports	62.3	5890	76.2%	6	242	25
#17	Livio Galanti #89 • Eagles Canyon Racing Powered by Fast Track	62.2	5911	80.8%	16	220	25
#18	Spike Kohlbecker #55 • RVA Graphics Motorsports by Speed Syndicate	60.9	6302	76.9%	32	262	25
#19	Ethan Goulart #72 • TechSport	60.6	6339	74.7%	27	258	25
#20	Brett Kowalski #15 • TechSport	60.5	6078	75.3%	1	301	25
#21	Max Schweid #98 • TechSport	60.2	6038	74.7%	16	266	25
#22	Westin Workman #13 • BSI Racing	58.1	6088	71.4%	35	265	25
#23	Mike Lamarra #73 • Precision Racing LA	58.0	6157	70.6%	12	256	23
#24	Patrick Brunson #93 • Eagles Canyon Racing Powered by Fast Track	59.7	6510	73.7%	26	174	19
#25	Ford Koch #21 • Copeland Motorsports	54.6	4678	60.6%	16	182	18
#26	Beltre Curtis #5 • Copeland Motorsports	56.1	5603	67.8%	2	171	16
#27	Jaxon Bell #7 • Copeland Motorsports	58.0	6323	68.3%	29	262	13
#28	Ethan Tovo #113 • Nitro Motorsports	56.8	5603	67.5%	2	80	11
#29	Shea Holbrook #67 • BSI Racing	56.6	6147	64.9%	2	90	10
#30	Jenson Sofronas #41 • Copeland Motorsports	50.8	5244	58.2%	1	48	7

Why Shift Optimization Matters

In a spec GR86 series, everyone has the same engine—so optimizing shift points can eke out a few tenths on straights and exits. Being in the right gear at the right time ensures the engine is delivering maximum power to the wheels.

Shift too early (before 7,000 RPM) and you drop the engine into a weaker part of the power band, losing acceleration. Shift too late (beyond 7,200 RPM or hitting the limiter) and the engine's power has peaked—you're just making noise without added thrust.

The GR86's 2.4L engine has peak power around 7,000 RPM and peak torque at 3,700 RPM. Proper gear selection means maintaining optimal power delivery: staying in the 5,000-7,100 RPM power band on straights, and avoiding lugging below 3,700 RPM on corner exits where the car will feel flat.

Every bit of acceleration gained is time gained—especially when horsepower is limited. Mastering shift points and gear selection can translate to better exit speed, improved straight-line performance, and ultimately, quicker lap times.