DEEP SOURCE PASS · 2026-07-20
DATA GRADE A

XXX Race Co (Triple X)

Raised-rail dirt sprint car. Numbers below come from public manufacturer sheets or sanction rulebooks. We do not invent missing values.

Wheelbase

VALUE
Series envelope 83–90" (USAC/ASCS) — chassis length via radius-rod maps below
XXX publishes radius rod / panhard / Jacob ladder standard measurements by chassis era (87/40 vs 88/40)
XXX Sprint Car Chassis Standard Measurements

Published geometry & baseline numbers

LF radius rod 87/40
22½"
XXX Standard Measurements
RF radius rods 87/40
23" (pair)
XXX Standard Measurements
LR radius rod 87/40
23½"–24" buried
XXX Standard Measurements
RR radius rod 87/40
24"–24½" buried
XXX Standard Measurements
Panhard rod
18½" (50" & 53" axle)
XXX Standard Measurements
Jacobs ladder (diagonal)
14"
XXX Standard Measurements
Ladder straps
7"
XXX Standard Measurements
Motor plate → rear axle center
40"
XXX Standard Measurements
Winged 410 short avg stagger
12"
XXX Winged 410 Short Track Average setup
Winged 410 short avg top wing
~25°
XXX Winged 410 Short Track Average setup
Winged 410 short avg nose wing
~30°
XXX Winged 410 Short Track Average setup
Winged 410 short avg bars (LF/RF/LR/RR)
1000 / 1025 / 1000 / 1000
XXX Winged 410 Short Track Average setup
Winged 410 short avg blocks
LF 3" · RF 4" · LR 3" · RR 4"
XXX Winged 410 Short Track Average setup
Winged 410 short avg LR/RR spacing
13¾" / 18"
XXX Winged 410 Short Track Average setup
XXX coaches condition matrices (tacky/average/slick × short/long) rather than a single RC height number.

Primary sources

· XXX Standard Measurements
· XXX Chassis Setup index
· XXX Winged 410 Short Average
Always verify against your exact year chassis and series rulebook. Setup sheets change by year.
LOAD INTO GARAGE
Interactive mid-window card
SHORT TRACK AVERAGE DEMO → PREFILL CHASSIS

Manufacturer correction

If a number is wrong for a specific year, email the correction with a sheet PDF. We will update grade and sources.

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