/Type /Page /MediaBox 0 0 612 792. iRacing Dirt Late Model Spring Adjustments: If you adjust the springs, use the spring perch offset adjustment to put the ride height back where it was originally, or at least try to adjust the ride heights so that you get the left rear bite back where it was originally. The focus is mainly the dirt late model and dirt modified race cars, but the general principles I illustrate can be easily supplied to any type of dirt race car or any race car in general. Here is just a little hint of what is inside: Why softening the right front spring will add side bite as well as forward bite to your car. (Chapter 23, page 84).

Model

The following spring/shock combinations are recommendations only. It is the purchaser’s responsibility to order the correct products through their personal racing experience. LANDRUM PERFORMANCE SPRINGS makes no guarantees that these charts will be suitable for each racer’s needs. These set-ups are to provide a reference only. LEGEND:

Description of Car
LFDirt Front Spring
Asphalt Front Spring
Dirt Front Spring
Asphalt Front Spring
RF
LRDirt Front Spring
Asphalt Front Spring
Dirt Front Spring
Asphalt Front Spring
RR
3200 - 3400 Lb. Street Stock
72-77 GM/Ford full size
LF900
1000
1000
1200
RF
LR250
250
200
200
RR
3200 - 3400 Lb. Street Stock
78-84 GM Metric
LF1100
1000
1300
1200
RF
LR225
250
200
225
RR

This is the setup starting pint

Iracing Dirt Late Model Setup Guide

3200Lb. Hot Stock
70-81 Camaro Multi-Leaf
LF1000
900
1200
1000
RF
LR21-344SPD
21-344SPA
21-342SPD
21-342SPA
RR
2800Lb. Sportsman
Stock Clip/Tube Rear
LF1000
900
1200
1000
RF
LR20-240SPD
20-240SPA
20-231SPD
20-231SPA
RR

May use 1 or 2 90/10 Dampening Shocks
Over Rear End to Tighten Car on Corner Entry

Late Model Dirt
2300lb. Mono Leaf
LF500550RF
LR175
20-244ML
150
20-244ML
RR
Guide
Late Model Dirt
2300Lb. 4-Bar
LF500550RF
LR225200RR
IMCA Modified
2400lb. Multi-Leaf
LFB/E550
B/E700
B/E650
B/E800
RF
LR200
200
175
225
RR

Iracing Dirt Late Model Setup Guide

IracingDirt Late Model Setup Guide
IMCA Modified
2400lb. Mono Leaf
LFB/E650B/E550RF
LR200150RR

Dirt Late Model Chassis Setup Guide

Hopefully the data contained in these pages was informative. Other helpful hints are available from our technical experts.