2019 Mazda Mazda3 — lowering springs made the car nervous on rough roads
2019 Mazda Mazda3 Preferred, about 80,500 miles. Ride height looks right, but the car now feels busier over broken pavement. Alignment is in range. Would you l…
Performance & Tuning
Performance & Enthusiast
2015 Volkswagen Golf — conservative tune feels great — what should I log? — anyone dealt with this recently?
I do not want to judge a tune only by how fast the car feels. Which parameters are worth logging periodically if the goal is catching fuel, knock, boost or tem…
2022 Ford Maverick — conservative tune feels great — what should I log?
I do not want to judge a tune only by how fast the car feels. Which parameters are worth logging periodically if the goal is catching fuel, knock, boost or tem…
MarketDIYer623Community StarterOct 24, 20252022 Ford Maverick XLT HybridOrange County4 replies0 helpful
2018 Mercedes-AMG C63 — dyno numbers changed more than the car feels
Two dyno sessions on different days show a noticeable power difference, but the car feels the same. How much can temperature, correction method, tire pressure…
2018 Subaru Forester — dyno numbers changed more than the car feels
Two dyno sessions on different days show a noticeable power difference, but the car feels the same. How much can temperature, correction method, tire pressure…
2022 Honda Accord — conservative tune feels great — what should I log? — trying to narrow this down
2022 Honda Accord 2.0T Sport, about 73,000 miles. I do not want to judge a tune only by how fast the car feels. Which parameters are worth logging periodically…
Square wheel setup on a car that came staggered
Thinking about moving to a square setup for tire rotation and track use. Besides fitment, what handling changes should I expect on a car calibrated around stag…
TurboCamper51Community StarterOct 14, 20252024 Chevrolet Corvette Stingray Z51Nationwide3 replies0 helpful
2025 Honda Civic — dyno numbers changed more than the car feels
2025 Honda Civic Sport Touring Hybrid, about 4,500 miles. Two dyno sessions on different days show a noticeable power difference, but the car feels the same.
WeekendDriver549Community StarterOct 13, 20252025 Honda Civic Sport Touring HybridOrlando11 replies0 helpful
1972 Chevrolet C10 — first HPDE in a stock street car
I am doing my first beginner track day and do not care about lap records. Besides fresh brake fluid, enough pad, good tires and torque checks, what is truly ne…
2007 Porsche Cayman — clutch engagement changed after a long traffic commute
2007 Porsche Cayman S, about 74,000 miles. After a hot stop-and-go commute the clutch engagement point felt different, but it returned to normal later. No slip…
2020 BMW M2 — clutch engagement changed after a long traffic commute
After a hot stop-and-go commute the clutch engagement point felt different, but it returned to normal later. No slipping at full throttle. What would you inspe…
2025 BMW M3 — lowering springs made the car nervous on rough roads
Ride height looks right, but the car now feels busier over broken pavement. Alignment is in range. Would you look at bump travel, damper match, toe or tire pre…
2023 Ford Bronco — conservative tune feels great — what should I log?
2023 Ford Bronco Badlands, about 42,500 miles. I do not want to judge a tune only by how fast the car feels. Which parameters are worth logging periodically if…
1968 Ford Mustang — clutch engagement changed after a long traffic commute
1968 Ford Mustang Fastback, about 64,500 miles. After a hot stop-and-go commute the clutch engagement point felt different, but it returned to normal later. No…