326 Power Buchigiri Coilover - 86/BRZ 12K-50K Spec

86 / BRZ Buchigiri Helper Designed 12K-50K Specifications

■ Chakuriki DAMPER Buchigiri Helper-only design 12K-50K specifications
If you have purchased the expensive Chakuriki DAMPER and are thinking of adding a helper spring later. That may be a mistake !!
Since the Chakuriki DAMPER is a harmonic drive that can be lowered, it may have an ultra-short stroke specification.
If you add a helper to that specification, bottoming out will occur. 326POWER's Chakuriki DAMPER Buchigiri is designed exclusively for helpers.
(1) Long stroke + dedicated damping shock
(2) Change the length of the main spring
③ Change of lower bracket
④ Selection for each component Super advisor Mitsuru Haruguchi will propose the recommended specifications from the beginning for the dimensions and damping force characteristics of all parts if you can tell us the specifications and applications.
There is no doubt that it will match your style.

■ Shock for helper spring.
① Long stroke shock
② Dedicated attenuation
We will set up the most suitable specifications according to the vehicle type / spring rate / helper length / vehicle height.

■ Chakuriki DAMPER Buchigiri 50K specification (rate reduction)
Assembly example
[F: 50K → 45K R: 28K → 20K]
When assembling the helper spring, optimize the dimensions of all parts such as the main spring, shock absorber, bracket, and collar.
Therefore, not all parts are the same even if the number of Ks (specifications) is the same.
One by one, a fully custom-made harmonic drive that suits the customer's application is assembled.

■ Chakuriki DAMPER Buchigiri 20K Specification Assembly Example (2 types at the request of the customer)

■ Requested to secure the increase in this specification.
① Shorten the main spring (to insert the helper spring)
② Make the lower bracket longer (to raise the vehicle height)
③ Increase the shock stroke by 15mm (to insert a helper spring)
The total length is 15mm longer, but it will be the same length because it will be lowered by 15mm by assembling the H40 helper spring.

■ This specification is a request with extended legs that emphasize ride comfort.
① The main spring is long (emphasis on ride comfort)
② Shorten the lower bracket (it will be difficult to raise the vehicle height)
③ Make the stroke 20mm longer (to insert a helper)
The total length is 40mm longer with longer strokes and shock cases.
By assembling the H60mm helper spring, it will be lowered by 35mm, so the total length will be 5mm longer, but the legs will be stretched and the riding comfort will be improved.

■ Slide-adjustable pillow upper mount is standard equipment.
The camber is a specification that the camber of the harmonic drive reaches the limit of the harmonic drive.

■ Camber adjustment is possible steplessly on the lower bracket side of the front with the upper and lower 4-step adjustment plates.

■ A lot of dimensional differences are set to answer such concerns, such as avoiding interference with a slight dimensional difference and further lowering the vehicle height.

■ Chakuriki DAMPER The best feature of Butchigiri is the helper spring and the special shock.

Upper mount FRONT: Slide-adjustable pillow / REAR: Fixed pillow Helper spring (rear) Chakuriki DAMPER Butchigiri is equipped with a chara spring helper spring and a shock absorber dedicated to the helper spring as standard equipment.
Vehicle height and short design Chakuriki DAMPER is a vehicle height and short design.
Each part such as bracket, collar, lock sheet, etc. is designed from scratch.

* Because it is a strut car, the front bracket is black.
26-step damping force adjustment A wide range of tuning is possible according to the driving stage, from high-speed driving such as urban areas and riding to sports circuits.
In-house design / in-house assembly Chakuriki DAMPER is in-house assembled.
We will adjust each part by assuming the usage situation of the user from the parts that are always in stock of 10,000 or more.
Strut lower bracket
(Semi-camber or Oni-camber) Uses a thick steel bracket.
Helps with insufficient rigidity that affects the handling of strut vehicles.
By applying high-grade cationic electrodeposition coating, it has excellent corrosion resistance and prevents screws from sticking.
Camber adjustment is possible by exchanging the camber adjustment plate.

* You can add a camber angle to the limit of the body with the upper mount and bracket, but it will interfere with the body etc.
* In the case of high-rate specifications, a heavy burden is applied to each part.
When attaching the camber, pay attention to the working angle (swing angle) of the pillow when setting, It may cause damage.
* In the case of high-rate specifications, there is little subduction at 1G, so never preload.

■ Chakuriki DAMPER Buchigiri
If you set the spring rate to high, the spring will do the work for the rate, but the shock damping will not follow the spring rate, and the ride may not be comfortable.
Not only the spring, but also the shock size, stroke, damping force, etc., according to the spring rate, we will select and assemble the one with the ideal damping setting from the combination of more than 1000 patterns. "By all means, I would like you to know the difference depending on the combination with the optimized damper.