Setup calculator, diagnostic troubleshooter, session logger, and rulebook — all in your pocket. Built for racers who wrench their own cars and chase every tenth.
Try It Now
Click the track conditions below and watch the recommendations change in real-time.
Live Demo
Track Condition
LF
RF
LR
RR
LF
14
RF
14
LR
13
RR
13
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Get Started FreeBeyond the Calculator
Diagnosis, engine builds, session data, corner weights, gear ratios — everything you need to find your tenths.
Symptom
Tight on entry
Heavy / Tacky conditions
Prioritized Fixes
355 SBC Build
Peak HP
387
@ 5,800 RPM
Peak TQ
452
@ 4,200 RPM
Power Curve
Springfield Raceway
Tacky conditions
Best Lap
14.832
Finish
P3
Handling Feel
Entry
Tight
Mid
Neutral
Exit
Loose
Cross-weight percentage with bolt-turn recommendations
RPM-at-speed for every gear and tire combo
Searchable class rules with tech inspection checklist
Backspacing and offset calculator for any wheel
Simple Pricing
Everything you need to get faster is free. Upgrade to Pro for advanced tools.
Tenths was built by racers who got tired of guessing. We wanted real setup data, real diagnostics, and a real log of what works — without needing a professional crew.
Whether you run street stock, modified, late model, or figure 8 — if you wrench your own car and want to find your tenths, this is for you.
Find Your Tenths