Modified - NASCAR Whelen Tour
Explore official-source information about the Modified - NASCAR Whelen Tour in iRacing.
Image © iRacing.com Motorsport Simulations
Quick reference
- Engine
- Small-block V8
- Published power
- More than 447 kWMore than 600 hp
- Carburettor
- Four-barrel Holley
The Whelen Tour Modified is the higher-powered Tour interpretation of the roofed, open-wheel pavement Modified.
Brake controls and adjustments
The revised Tour brake system uses different front and rear pad compounds to reduce brake-balance movement at high disc temperatures.
Tyres and operating conditions
The June 2026 update introduced redesigned bias-ply tyres with different left- and right-side compounds. Grip is lower when cold and develops as the tyres warm up.
Suspension and chassis
The Tour car now has its own suspension geometry and inspection limits: setups no longer transfer to the SK. Rear track-bar settings show actual mount heights above the ground and spring ranges vary by track type. Rebuilt dampers use a 20-click scale instead of 40, keeping the overall range but making each click coarser.
Engine and electronic systems
The official Tour profile describes a small-block V8 with a four-barrel Holley carburettor producing over 600 hp. This is a different engine specification from the lower-cost SK version.
Official sources
Stop Guessing, Start Improving
Many drivers slam the brakes with all their strength, but the fastest modulate pressure, use the brake to rotate the car, and exit as fast as possible. Train that skill here.
Train Anywhere, Anytime
Browser-based training works with any racing pedals or controllers. Fanatec, Thrustmaster, Logitech, Simucube — no installation required.
Pro-Designed Exercises
Access exercises created by professional sim racers like Suellio Almeida. Learn the exact braking patterns used by the fastest drivers.
Import Modified - NASCAR Whelen Tour Telemetry
Drop your Garage61 lap CSV and extract braking data for every corner. Generate personalized practice exercises based on YOUR telemetry, not generic patterns.
Track Your Progress
View session history, performance trends, and best scores. Watch yourself improve over time and stay motivated to practice.
And There's Much More
Improve your braking technique with this car and much more:
Create Custom Exercises
Build from templates, draw brake curves, or record with your pedal
Schedule Your Training
Plan practice sessions and track your consistency across weeks
Brake Master Ratings
Earn rankings and compete on leaderboards as you improve
Exercises & Progress Tracking
Practice exercises and track your progress completely free.
No install needed • Works in browser
General practice tips
Tip 1
Starting point
Start with the official setup and consult the simulator documentation for available controls. Appropriate brake bias depends on the car and conditions.
Tip 2
One variable
Change one setting at a time and compare several laps. Record the change and observed behavior before keeping it.
Tip 3
Comparable conditions
Compare similar fuel loads, tires and track conditions. One lap alone does not establish that a setting is better.
Frequently asked questions
General guidance for practicing and consulting car-specific sources.