How Vehicle Safety Bar Work?
Ultra Racing a Trusted Brand Worldwide
Strut Bars and Chassis Strengthening Technology
If you?re serious about your car?s handling performance, you will first be looking at lowering the suspension. In most cases, unless you?re a complete petrolhead, this will be more than adequate. However, if you are a keen driver, you will be able to get far better handling out of your car by fitting a couple of other accessories to it. The first thing you should look at is a strut brace.
When you corner, the whole car?s chassis is twisting slightly. In the front (and perhaps at the back, but not so often) the suspension pillars will be moving relative to each other because there?s no direct physical link between them. They are connected via the car body, which can flex depending on its stiffness.
A strut brace bolts across the top of the engine to the tops of the two suspension posts and makes that direct physical contact. The result is that the whole front suspension setup becomes a lot more rigid and there will be virtually no movement relative to each side. In effect, you?re adding the fourth side to the open box created by the subframe and the two suspension pillars.
Is there a need to have our vehicle chassis strengthened?
The chassis of the car is the part which experiences the most of the abuse from the driver. It is particularly due to the weight transfer of the vehicle body during fast cornering, hard braking or hard acceleration.
In some instances, the weight transfer during cornering may cause one side of the vehicle to experience as much as 3 times more force than the other side of the vehicle, causing enormous chassis flex/ vehicle body deformity and twist, consequently causing tires to lose grip.
Deformity and twisting of the vehicle chassis during cornering may cause negative handling traits such as understeering and oversteering.
What is Vehicle Handling?
UNDERSTEER
The front wheels are likely to slip towards outside of the turn angle, driver can solve it by turning a little more slightly but the handling is reduced, vehicle?s behavior is less predictable and tires are likely to worn out faster. Understeer often occurs in front wheel drive layout vehicles.
OVERSTEER
The rear wheels are likely to slide towards the outside of the turn more than the front. The driver must correct by steering away from the corner otherwise the vehicle will tend to spin when it has been pushed to its limit. Oversteer often occurs in rear-wheel drive layout vehicles.
1. As most modern cars go, car manufacturers employ the FF (Front engine, Front wheel drive) setup for improving driver and passenger safety. The natural behavior of an FF car is to have a slight understeer, due to its heavier front end. Understeer happens when the front wheels lose their traction and won?t turn any sharper, even when the steering is being corrected to turn the car more. This will cause the car to go wide instead of following the line. Understeer can be corrected by stiffening the rear end of the vehicle by adding a Rear Strut Bar and a Rear Anti Roll Bar.
2. Oversteer is when the rear tires lose grip and causing the rear end of the vehicle slides out of a corner. This phenomenon happens particularly to FR (Front engine, Rear wheel drive) or RR (Rear engine, Rear wheel drive) cars. Oversteer can be corrected by stiffening the front end of the vehicle by adding Front Strut Bars and Front Anti Roll Bars.
What Affect Handling?
Strut Bar and Lower Arm Bar
BEFORE :
Part of the shock of impact transfer to the chassis, causing wheel house and lower arm deforming.
AFTER :
Equip with the Ultra Racing?s strut bar and lower arm bar, both side shock of impact will be neutralized.
While Entering at Corner
BEFORE :
The weight transfer and force gathering on one side, causing unstable handling and increasing body roll.
AFTER :
The force will spread out by Ultra Racing?s strut bar and lower arm bar, stabilize the car and provide solid handling.
Fender Bar
BEFORE :
The joint between A-pillar and front chassis will be push and twist by the greater shock of impact and drag force, causing damage on chassis.
AFTER :
Ultra Racing?s Fender bar will spread out the force and strengthen the section, prevent further damage and offer stable handling. Recommend for user of sport absorber.
Side Lower Bar
BEFORE :
On uneven / bumpy road, center section chassis will have different level of body flex cause by the weight transfer between front and rear.
AFTER :
Ultra Racing?s side lower bar will stabilize the weight transfer between front and rear, it can also minimize the damage from side impact.
Anti Roll Bar
BEFORE :
When turning in corner, the weight transfer will make the car sway a side, causing body roll and more difficult to turn in to a corner, weaken the steering respond.
MATERIAL SPECIFICATION & DESIGN
Every materials used are carefully selected to ensure the best performance and safety. The brackets are made of 4mm to 5mm steel plates, while the hollow steel tubes and oval tubes are of 1.2mm to 1.6mm thickness. These materials are selected to ensure the bars are rigid and strong to maintain constant geometry at all times, yet safe enough to crumble during an impact for safety reason.
All our raw materials has been made and tested with satisfactory result.
MILL / TEST CERTIFICATE (Chemical Composition)
Specification
? JIS 3101 SS 400 (Japan International Standard)
? JIS G 3141 SPCC SD (Japan International Standard)
? ASTM A 500 Grade A (American Standard)
? BS 1387 ( British Standard)
STEEL VS ALUMINUM
Why we use Steel instead of Aluminum?
First, steel is stronger than aluminum for the same size and thickness. In order for aluminum alloys to be at least the same strength as steel, it has to be at least double the thickness (steel 4mm = aluminum 8mm). When that happens, weight saving is not so apparent anymore. Of course there are also exotic materials and alloys that can match the strengths of steel, but the cost are astronomically high and therefore not very cost effective to bring into mass production.
Understanding Car Specification
By Ultra Racing
Explanation
In order to fit different levels of demand in the market, most of the car manufacturers are producing the car with different specification in a model series. The cars with higher specification will often comes with the enhancements on engine torque, wheel size, brake system, suspension system and also chassis.
The Differences Between Honda Civic EK3 and Honda Civic EK9 (Type R)
Honda EK series, it comes with a few specifications model in the market. The OEM front strut bar is only available for the
car model with DOHC VTEC engine.
Honda Civic EK3 without OEM Front Strut Bar
Honda Civic EK9 with OEM Front Strut Bar
The Differences Between Honda Civic FD & FD2 (Type R)
The thickness of OEM Rear Anti Roll bar is 10mm difference between FD2 (11mm) and FD2R (21mm). FD2R is the mass production race spec model,
and its handling is more suitable for race track.
Honda Civic FD OEM Rear Anti Roll Bar 11mm
Honda Civic FD2 (Type R) OEM Rear Anti Roll Bar 21mm
The Differences Between BMW F10 & F10 M5
The Ultimate Driving Machine ? BMW 5 series is one of a high satisfication vehicle in the market, it also comes with a sport version ? M5 series. M5 series is required for exlusive engine output and better handling, it OEM Front and Rear Anti Roll always comes with a thicker setting.
BMW F10 OEM Front Anti Roll Bar
BMW F10 M5 with OEM Front Anti Roll Bar
The Differences Between Mitsubishi Lancer EX 1.6 & GT 2.0
Mitsubishi Lancer series, spot the difference between 1.6 and 2.0. The OEM front strut bar is only available for the higher specifications car model.
Mitsubishi Lancer EX 1.6 without OEM Front Strut Bar
Mitsubishi Lancer GT 2.0 with OEM Front Strut Bar
The Differences Between Subaru XV & XV STI
The OEM Front Strut Bar is only available for the Subaru XV STI model.
Subaru XV without OEM Front Strut Bar
Subaru XV STI with OEM Front Strut Bar
The Differences Between Perodua Myvi M300 / M600 & M800 (2018)
Perodua Myvi is comes with 3 generation in total, let?s compare with the 1st ? 2nd generation and 3rd generation of Perodua Myvi. Both of them were using the Rear Torsion Beam suspension setups, but the model of 3rd generation M800 is upgraded and comes with OEM Rear Anti Roll bar in 17mm.
Perodua Myvi M300 / M600 without OEM Rear Anti Roll Bar
Perodua Myvi M800 (2018) with OEM Front Anti Roll Bar
Ultra Racing a Trusted Brand Worldwide
Ultra Racing strut bars are being designed to absorb the impact and minimizing the possible damages due to the chassis in an event of collision. With promising characteristic, Ultra Racing strut bars will not only provide solid handling but also a shield to the passengers.
Ultra Racing strut bar?s material are first being carefully selected, the brackets are being constructed by steel plates with the thickness of 4mm ? 5mm in order to provide a strong brackets which would be able to hold each corner with strong holding power hence providing a solid and responsive handling.
Secondly the hollow steel tubes and oval tubes are being constructed with the size of only 1.2mm to 1.6mm of thickness which would not affect the handling delivered to the vehicle while impact can be absorbed without causing damage to the opposite side where the collision happens.
Case Study : Proton Satria GTI real-world crash impact pictures
Case Study : Hyundai Atos real-world crash impact pictures
Ultra Racing Bar crumpled from absorbing the impact minimize damage to car,extensive R&D taken to the test in the real world ! Our Hyundai Atos 4 point bar helped absorbed the crash impact & prevent further damage to the car. The same cannot be said of the other car !
Case Study : Lower Arm Bar is bent but did?nt compromise the chassis
The is a real example of our Proton Wira LAB before & after a severe crash that bent the LAB. As you can see from the comparison photo, the geometry of the brackets hasn?t compromised the chassis as many sceptics thought it would. This is a result of extensive R&D with materials & design by our technical team.
Case Study : Perodua Myvi front Bar before and after accident but did?nt affect the other side / left side
This Myvi crashed into a cow and was badly damaged and the unfortunate cow became beef! Despite the extensive damage to the car, the driver wasn?t hurt and our bar absorbed the crash, yet not even affecting the other side. After repairs, the owner fitted a new UltraRacing strut bar, and it fitted perfectly! Showing the chassis is still intact.
