Page 154 - 2017 Racecar Engineering Circle Track Parts and Accessories Catalog

5" 5TH COIL SPRING
AFC280001
CONVENTIONAL
5" O.D. 5th coil spring is 10-1/2" long and includes a progres-
COIL SPRINGS sive, 200-2,000 lb. rate.
Precisely wound, black (unless specified)
coated AFCO springs are 100% quality checked,
inspected and engraved with the specified rate. 11" PROGRESSIVE RATE
Front Springs Rear Springs TORQUE ARM/FIFTH COIL SPRING
5" O.D. 5-1/2" O.D. 5" O.D. 5" O.D. 5" O.D. AFC20087PR
Rate 9-1/2" Tall 9-1/2" Tall 11" Tall 13" Tall 16" Tall
100 – – AFC25100B – – Designed exclusively for torque arm or fifth coil applications,
125 – – AFC25125B AFC25125-1B AFC25125-2B 2-5/8" dia. coil spring includes a soft primary rate to improve for-
150 – – AFC25150B AFC25150-1B AFC25150-2B ward bite, while the stiff secondary rate provides quick application of
175 – – AFC25175B AFC25175-1B AFC25175-2B engine torque to rear tires. Spring offers a wide, 165-675 lbs. range
200 – – AFC25200B AFC25200-1B AFC25200-2B of preload adjustment.
225 – – AFC25225B AFC25225-1B AFC25225-2B
250 – – AFC25250B AFC25250-1* AFC25250-2B
275 – – AFC25275B AFC25275-1B –
300 – – AFC25300B AFC25300-1B – 6TH COIL SPRING AFC26400-1
325 – – AFC25325B AFC25325-1B – Mini, 1-3/8" O.D. x 3" tall spring has a 400 lb. rate.
350 – – AFC25350B AFC25350-1B –
375 – – – AFC25375-1* –
400 – – – AFC25400-1B –
500 AFC20500B AFC20500-1B – – – MINI SPRINGS
550 AFC20550B AFC20550-1B – – – Mini springs are 2.0" O.D. x 4-1/2" free height and are used in
600 AFC20600B AFC20600-1B – – – spring-loaded third links, spring rods and Panhard bars.
650 AFC20650B AFC20650-1B – – – Part No. Rate
700 AFC20700B AFC20700-1B – – – AFC27065 650 lbs.
750 AFC20750B AFC20750-1* – – – AFC27105 1050 lbs.
800 AFC20800B AFC20800-1B – – – AFC27120 1200 lbs.
850 AFC20850B AFC20850-1B – – – AFC27160 1600 lbs.
900 AFC20900B AFC20900-1B – – –
950 AFC20950B AFC20950-1B – – –
1000 AFC21000B AFC21000-1B – – – 5" IMCA TORQUE LINK SPRINGS
1050 – AFC21050-1B – – – Torque link springs, which are 6-5/8" tall for modifieds, allow necessary
1100 – AFC21100-1B – – – stroke lengths and will maintain proper height and rate for life.
1150 – AFC21150-1B – – – Part No. Rate
1200 – AFC21200-1B – – – AFC270600B 600 lbs.
1300 – AFC21300-1B – – – AFC271050B 1050 lbs.
1400 – AFC21400-1B – – – AFC271200B 1200 lbs.
* Signifies yellow spring AFC271450* 1450 lbs.
AFC20194-8D AFC270000PR Progressive 600-1,300
AFC270001
Progressive 600-2,500
DETENTED LIGHTWEIGHT * Signifies yellow spring
WEIGHT JACK SYSTEM
Detented weight jack system eliminates the need for “THREE STAGE” TORQUE LINK
a jam nut, speeding up wedge adjustments. The weight
jack plate utilizes a stainless steel ball, spring and AFC21207X
set screw, which prevent the plate from turning when AFC20193D Adjustable “Three Stage” torque link
racing. features a progressive design
Part No. Description for the ultimate in torque
AFC20193D Detented Upper Plate control and traction. Torque is initially
AFC20194-8D Lightweight Jack Bolt, 1-1/2 lbs., 8" Length absorbed by the coil spring to provide forward bite,
AFC20194-11D Lightweight Jack Bolt, 2 lbs., 11" Length and as engine torque increases, the poly bushings engage to increase torque
AFC20195LW Lightweight Spring Cup to the rear tires. The twin shaft design allows the engine side and braking side
to operate independently, allowing corner entry and exit to be tuned separately.
ADJUSTABLE COIL SPRING SPACER The engagement point of the poly bushings may be adjusted independently
from the coil spring to allow for changing track conditions.
Designed for use on stock stub
cars fitted with 5" or 5-1/2" O.D.
coil springs, spacer allows adjust- TORQUE LINK BRACKETS FOR FORD 9"
ing ride height and wedge up to 2". AFC20407
Choose from tall or short designs. Designed for popular Ford 9" rears,
Part No. Description AFC20187 laser-cut steel brackets use a “for-
AFC20187 Short Adjustable Spacer ward mount” design that offers increased
AFC20191 Tall Adjustable Spacer AFC20191 pull bar angle and forward bite during axle
wrap-up and chassis lift. Brackets include
an 8° pinion angle, allowing torque link to
be mounted 4" ahead and 12" above axle
centerline.

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