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Mechanic jacking a NEOTECH-liveried race car with the front wheel off in the pit

Technology

What goes into a damper, and why it changes how the car drives

Damper design is a set of trade-offs. These pages explain the choices behind Neotech suspension — what each one costs, and what it buys you on the road and on track.

±2 kg/mm
Spring rate, set at order
±20%
Damping force to spec
157,000
Certified caliper cycles
−6 m
Stopping distance vs OE

01  /  03

Dampers

Four decisions that set how the car rides and how it holds a line — the construction, the valve stack, what sits on top of the strut, and what you get to specify before it is built.

Section through a Neotech inverted monotube coiloverFrom the top: an anti-NVH top mount with a rubber isolator and a camber-adjustable plate, then the large-diameter damper body holding the nitrogen chamber, floating piston, oil column and NDP piston, with the coil spring around it. The thin piston rod exits downward, below the load path, to the lower mount.

damper design

Inverted Monotube Design: Why Damper Orientation Matters

In a MacPherson strut, the damper carries lateral load. Inverting the monotube puts the thick damper body in that path instead of the thin piston rod — here's what that changes.

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NDP damping force plotted against shaft speedRebound force above the zero line, compression below. Three stages: damping force builds quickly at low shaft speeds for body control, passes through a knee, then becomes digressive — force keeps rising with shaft speed but at a progressively lower rate, so sharp impacts are absorbed rather than transmitted into the chassis.12300.51.01.52.0Shaft speed (m/s)REBOUND — damper extendingCOMPRESSION — damper closingThe kneeDigressive from here
ReboundCompressionDesign intent, not a certified trace.

damper design

NDP Piston Valving: Digressive Damping Explained

Firm body control at low shaft speeds, then a softer rate of rise beyond the knee. How Neotech's NDP valving builds a damping curve with a deliberate transition point.

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Section through a Neotech inverted monotube coiloverFrom the top: an anti-NVH top mount with a rubber isolator and a camber-adjustable plate, then the large-diameter damper body holding the nitrogen chamber, floating piston, oil column and NDP piston, with the coil spring around it. The thin piston rod exits downward, below the load path, to the lower mount.

hardware

Anti-NVH Top Mount: Coilover Refinement Without a Pillowball Penalty

Coilovers are noisy because rigid top mounts transmit everything. Neotech's patented Anti-NVH top mount integrates a rubber isolator into a camber-adjustable mount to kill that noise.

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What you can set on a made-to-order Neotech coiloverTwo adjustment ranges around the baseline specification for your vehicle. Spring rate can be chosen within plus or minus two kilograms per millimetre. Damping force can be set within plus or minus twenty per cent of specification, at order or later at overhaul. Beyond those ranges, a bespoke damping curve is developed by consultation.Baseline spec for your vehicleSPRING RATE — SET AT ORDER−2−10+1+2kg/mmDAMPING FORCE — SET AT ORDER OR OVERHAUL−20%−10%spec+10%+20%of specPast these ranges — a bespoke damping curve, developed one-on-one
Ranges are relative to the baseline specification for your car, which differs by model. Spring rate availability varies by vehicle, and NEOSport allows more latitude than NEOStreet.

ordering

Custom Spring Rates and Damping: Built to Order, Not Off the Shelf

Spring rates selectable within ±2kg/mm, damping force set within ±20% of spec at order or overhaul, and one-on-one consultation for bespoke damping curves.

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02  /  03

Brakes

How the discs and brackets are cut, what the certified tests measured, and the five ways a modern rear axle can be upgraded without losing its parking brake.

Three stages between the vehicle and the finished brake discFirst the actual hub, upright and wheel are 3D scanned, so the geometry used is the part as it left the factory rather than a drawing. Second the bracket and disc are designed against that scan and exercised digitally through suspension travel, steering lock and wheel clearance. Third the parts are cut on five-axis machines in a single setup, so no error accumulates between operations. The result needs no shims.13D scanThe hub, upright and wheelas they left the factory2Digital clearance testFull suspension travel,steering lock, wheel clearance35-axis machiningCut in a single setup —nothing re-fixtured
Schematic. The point of the sequence is that measuring the actual vehicle and cutting in a single setup keeps setup error from accumulating — which is why a Neotech kit ships without a bag of shims.

manufacturing

Why Our Rotors Need No Shims: 3D Scanning and 5-Axis Machining

Brake judder and vibration usually trace back to fitment tolerance, not pad choice. Here's how 3D scanning, digital clearance testing, and 5-axis machining remove shims from the equation.

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Stopping distance from 100 km/h — Neotech kit against original equipmentTwo braking runs from the same start line at 100 km/h under a constant 100 newton pedal force applied by a robotic actuator. The original equipment brakes come to rest six metres further down the road than the Neotech kit. Absolute distances are not shown because only the difference was published.100 km/h — brakes appliedNEOTECH KITORIGINAL EQUIPMENT6 m shorterSame start line
Tested under TS (Korea Transportation Safety Authority) regulation: 100 km/h to rest, 100 N constant pedal force applied by a robotic actuator. Bar lengths are illustrative — only the 6 m difference was measured, and absolute stopping distance varies by vehicle.

testing

Certified Brake Testing: 6 Metres Shorter, 157,000 Cycles

A robot-actuated 100 N pedal test from 100 km/h cut stopping distance by 6 metres against OE. Calipers then survived 157,000 cycles from −30°C to 120°C. Here are the numbers and how they were measured.

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Five rear brake approaches, mapped by caliper choice and intended useThe horizontal axis runs from keeping the stock rear caliper on the left to fitting a new fixed caliper on the right. The vertical axis runs from a street car that must keep a working parking brake at the bottom to motorsport use at the top. OERP and OEEX keep the stock caliper; OERP saves mass, OEEX adds thermal capacity. Fixed caliper kits sit on the right, paired either with an electronic parking brake caliper or with a drum-in-hat disc. The hydraulic handbrake sits at the top, for drift and rally builds only.KEEPS THE STOCK CALIPERNEW FIXED CALIPERMOTORSPORT ONLYSTREET — PARKING BRAKE INTACTOERPOE-size disc, stock caliperOEEXOversized disc, stock caliperFixed caliper + EPBKeeps the electronic park brakeFixed caliper + drum-in-hatReuses your OEM drum shoesHydraulic handbrakeRear lock-up on demand
Positions are relative, not measured. Which of these your car can take depends on what the factory rear axle already has — ask your dealer before ordering.

fitment

Rear Brake Upgrades With EPB, Drum-in-Hat, or Stock Calipers

Modern rear axles complicate big brake kits — electronic parking brakes, drum-in-hat handbrakes, and calipers you may not want to replace. Five approaches and when each one is the right call.

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03  /  03

Quality

Certification you can check yourself, before the part goes on the car.

How a certified Neotech part is traced from the factory to installationEach unit carries a certification mark holding a serial number, a follow-up number, a scannable code and an anti-forgery security pattern. The dealer scans that mark to register the product. Before installation you scan the same mark, and it returns the certification number, the part name and the manufacturer.ON THE PARTSerial number + follow-up numberScannable mark + security pattern1Dealer scansProduct registered at the dealer2You scanBefore it goes on the carCertification numberPart nameManufacturer
Schematic — the code shown is an illustration, not a live certification mark. Certification is issued under the Automobile Management Act, Article 34-2.

quality

Certified Tuning Parts: Serial Tracking and QR Verification

Neotech suspension carries Korean tuning parts certification — serialized, QR-verifiable, and protected against counterfeiting.

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