Free drag racing tuning resources, straight from the shop. I'm Kevin Wilson — KevinWilsonSBC of SamSon Performance — and these are the same documents and reference guides I use to help racers launch harder, run straighter, and put down more consistent ETs.
Use them to dial in your own setup. And if you'd rather have me build your baseline for you, my remote and in-shop tuning services are a click away.
✅ Suspension Tuning Questionnaire
The first step to a real recommendation is documenting your complete setup. This questionnaire walks you through everything about your car — shocks, springs, suspension type, weights, tires, power, and more — so we start from facts, not guesses. → Get the Questionnaire
✅ Drag Car Front Suspension Tuning Guidelines
A quick-reference guide for front-end travel, shock clicks, springs, and installed height across no-prep/street, bracket, and radial setups. → View the Guidelines
✅ Why Your Shocks Matter: Reading Drag Shock Dyno Data
Most racers ignore their shocks and assume any double-adjustable shock will do — the dyno data says otherwise. See why shock choice and valving make or break your launch. → Read More
✅ Before & After a 4-Link or Ladder Bar Change
A bar change isn't done when the bar is bolted in. Here's the full before-and-after checklist covering ride height, pinion angle, rear-end square, scaling, and ARB, so you know what the change actually did instead of guessing. → Read More
✅ Power Wheelies with BIG Power: Why Nose Weight Placement Matters
Calming a power wheelie isn't about making the car heavy — it's about leverage. See why 5 lb way out on the nose can resist rotation like hundreds of pounds near the axle, and exactly where to mount ballast for the most nose-down effect. → Read More
✅ 4 Link Anti Squat, Instant Center, and Bar Spread Explained
Anti squat is a great tuning number, but it can lie if the measurements are wrong. Learn why anti squat works best from a known baseline, how instant center length and height affect the car, and why rear spread is useful while front spread is meaningless without bar lengths, rear spread, and bar angles. → Read More
Want me to take the guesswork out of it? Checkout all of my Suspension Services
Use them to dial in your own setup. And if you'd rather have me build your baseline for you, my remote and in-shop tuning services are a click away.
✅ Suspension Tuning Questionnaire
The first step to a real recommendation is documenting your complete setup. This questionnaire walks you through everything about your car — shocks, springs, suspension type, weights, tires, power, and more — so we start from facts, not guesses. → Get the Questionnaire
✅ Drag Car Front Suspension Tuning Guidelines
A quick-reference guide for front-end travel, shock clicks, springs, and installed height across no-prep/street, bracket, and radial setups. → View the Guidelines
✅ Why Your Shocks Matter: Reading Drag Shock Dyno Data
Most racers ignore their shocks and assume any double-adjustable shock will do — the dyno data says otherwise. See why shock choice and valving make or break your launch. → Read More
✅ Before & After a 4-Link or Ladder Bar Change
A bar change isn't done when the bar is bolted in. Here's the full before-and-after checklist covering ride height, pinion angle, rear-end square, scaling, and ARB, so you know what the change actually did instead of guessing. → Read More
✅ Power Wheelies with BIG Power: Why Nose Weight Placement Matters
Calming a power wheelie isn't about making the car heavy — it's about leverage. See why 5 lb way out on the nose can resist rotation like hundreds of pounds near the axle, and exactly where to mount ballast for the most nose-down effect. → Read More
✅ 4 Link Anti Squat, Instant Center, and Bar Spread Explained
Anti squat is a great tuning number, but it can lie if the measurements are wrong. Learn why anti squat works best from a known baseline, how instant center length and height affect the car, and why rear spread is useful while front spread is meaningless without bar lengths, rear spread, and bar angles. → Read More
Want me to take the guesswork out of it? Checkout all of my Suspension Services