Drift Tengoku — September 2004 · Page 54
Page 54 — English translation
Lowering a car may appear to lower its center of gravity and increase cornering speed. In practice it can increase the distance between the body's center of gravity and the roll center, adding roll and reducing suspension travel, which lowers the limit. Correcting their relationship reduces roll, restores travel and controls load transfer, making corners more reassuring.
Correcting geometry disturbed by lowering is the key to front suspension setup.
Captions and page details
Ikeya Formula
Parts
Step 5: adjustment features provide the best setup for your use. Front
Enjoy changing alignment settings!
As at the front, the rear principle is to lower ride height without lowering the roll center.
REAR
Installing the Roll Center Adjuster pillow ball front lower arms and adjustable rear lower arms corrects front and rear roll centers after lowering. It improves limited travel, brings roll closer to ideal and minimizes unwanted geometry changes...
¥29,400 / ¥16,800 including tax
Full set
Maple A-One Gauge: package set ¥55,650 including tax
...for a major traction improvement.
Half set
Maple A-One Gauge Pro: package set ¥57,750 including tax
¥31,500 / ¥18,900 including tax
Full set
Half set
Compatible with modified vehicle inspection
Patented adjustable rear lower arms correct the relationship between roll center and center of gravity after lowering, improving traction. Use with the front lower arms. S13 / S14 / S15 / HCR32 / ECR33 / ER34 / C33 / A31: ¥72,450; Z32 / BNR32 / BCNR33 / BNR34: ¥82,950 including tax.
Compatible with modified vehicle inspection
Patented tie rod ends correct bump steer related geometry changes for linear handling: ¥34,650 including tax. Tie rod kit with rods and ends: ¥43,890 including tax.
Compatible with modified vehicle inspection
Roll Center Adjuster pillow ball lower arm, patented. For S13 / S14 / S15 / HCR32 / ECR33 / ER34 / A31 / C33 / Z32: ¥51,450 including tax.
Step 6
Rear knuckle pillow ball bushes, compliant with safety standards. Replacing deteriorated rubber restores a condition closer to new. S13 / S14 / S15 / HCR32 / ECR33 without HICAS: ¥36,750; with HICAS: ¥27,300. BNR32 / BCNR33 / BNR34 / ER34 with HICAS: ¥33,600 including tax.
The rear knuckle's arm mounting points are often overlooked. Their rubber bushes can flex and undermine the benefit of upgraded arms. Pillow ball replacements provide smoother, more direct movement and suppress unwanted geometry change...
...can be achieved.
Confidence in strength and durability
Ikeya Formula's arms undergo tensile tests, with strength about 30% greater than stock confirmed for the adjustable rear lower arm example. They offer reassurance in strength and durability as well as function.
Alignment analysis graph from our own geometry measuring equipment
The combined effects of the components create balanced suspension and strong mechanical grip, allowing you to apply throttle through corners where you previously could not.
Test vehicle: S15
2
00
90
Angle (°)
40
25
35
10
01
1
Full arms
20
15
10
Ride height reference: the test S15's distance from ground to fender was 630 mm, defined as zero.
Standard
5
10
0
.13
Testing
Adjustable rear lower arm
1. Roll Center Adjuster pillow ball lower arms. 2. Tie rod ends. 3. Pillow ball tension rods.
Arms used
Ride height (mm)
0
35
25
10
40
Impreza suspension parts
New products arriving!
Impreza GDB: rear adjuster rod
Impreza GDB: Roll Center Adjuster pillow ball bush kit
RX-7FD3S
Pillow ball bush kit
Parts catalog Vol. 8
RX-7 FD3S suspension arms coming soon
Adjustable rear lower arm and trailing link: ¥102,900 including tax
Rear toe adjuster rod: ¥32,550 including tax
Patented Roll Center Adjuster pillow ball lower arm: ¥131,250 including tax
All Ikeya Formula suspension parts use high precision, high quality NMB pillow ball bearings.
About this issue
ドリフト天国 (Drift Tengoku), September 2004, is a Japanese drifting magazine. This archive preserves 316 scanned pages in their original right-to-left reading order, including the covers.
English translations are available through the outlined text areas. Hover over a box on desktop, or tap it on mobile. The original photographs and Japanese lettering remain visible on the scan.
Reading the magazine
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