What is unique about Ironman coil springs?
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The thing that makes Ironman leaf and coil springs unique is that they are designed to match driving style and vehicle use. Generally most 4×4 owners are totally obsessed by how much lift they can achieve for a vehicle.
Ironman 4×4 Suspension however concentrates on improving ride, handling, comfort and control while also providing lift. These design concerns are made without compromising safety and will make driving your vehicle a pleasure.
Ironman leaf and coil springs allow 4×4 owners to choose the right design of springs that suits their driving style. So whether you drive on road, off road or with a constant load you can find the Ironman spring that suits you. In some models we offer four different spring designs to cover all driving styles.
How much lift can I expect from Ironman springs?
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Ironman leaf springs lift vehicles around 50mm above new vehicle ride height.
Ironman coil springs lift vehicles around 40-50mm from new vehicle ride height.
Vehicles with Independent Suspension are limited to 25-50mm lift (vehicle dependant) due to the geometry restraints inherent by this design of suspension.
Will my ride feel firmer after fitting Ironman springs?
+
Yes it can. However, nobody wants a rigid and stiff suspension. Ironman springs will firm the ride and support the load, but when used in conjunction with Ironman Shock Absorbers, the ride will also become noticeably smoother. With this combination you benefit from a strong and responsive handling vehicle, but with the comfort and flexibility you desire.
Can I use standard length shock absorbers?
+
Yes.*
The standard length shock absorbers installed with new vehicles are designed to sit in the middle of their travel. Installing Ironman springs will make them to sit higher in their range of travel. This will not affect shock performance and you can enjoy the improved performance of Ironman springs.
* Except Competition Lift Kits.
Can I use shock absorbers with standard height springs?
+
Yes.*
Ironman Shock Absorbers will sit slightly lower in their travel when installed to standard length springs. This will not affect shock performance. Ironman springs and shock absorbers have been “tuned” to work in conjunction, to produce a truly harmonized result.
* Except Competition Lift Kits.
Can I adjust the strut seat height?
+
Ironman 4×4 struts feature an adjustable height spring seat. 12xxx & 24xxx series struts utilise a trim packer system, 45xxx series struts utilise a threaded strut body.
Seat height cannot be adjusted whilst in vehicle, strut must be removed from vehicle with spring tension unloaded to enable adjustment. The purpose of this adjustment feature is to allow recalibration of ride height following the installation of heavy accessories or to compensate spring settling.
Not to be used as a variable ride height system. An increase in seat height beyond OEM specifications may result in excessive lift and non-compliance to state or federal laws.
A minimum 60mm suspension droop must be available at all times.
Nitro Gas or Foam Cell?
+
4×4 Shock Absorbers used in smooth onroad conditions are judged upon their ability to provide a smooth controlled ride and handling, this means they must accommodate a stiffer valve performance to counter-act body roll and dive etc. An Ironman Shock absorber has been carefully designed to create the correct balance between firmness and comfort.
4×4 Shock Absorbers used in offroad applications generate enormous amounts of heat. Essentially, a shock absorber converts the energy of the spring movement into heat, it is vital to keep the shock absorber as cool as possible for maximum efficiency. Too much heat will cause “Shock Fade” and a poor vehicle ride and handling.
Ironman offers two distinct Shock Absorber concepts to cater for the needs of today’s 4×4 vehicles. 35mm piston, Nitro Gas Shock Absorbers are ideal for the general purpose user, with excellent performance in all terrain, from smooth tarmac surface through to the most demanding corrugations or rocks. Best for the all-rounder who mainly drives onroad, and the occasional adventure weekend and trip away.
41mm piston Foam Cell Shock Absorbers are constructed similar to the Nitro Gas, with the exception being their increase in piston size and the use of the cellular foam sleeve inside. The compact foam cell sleeve replaces the gas charge. The foam sleeve occupies less space inside the shock absorber than the gas charge, allowing more oil inside the shock absorber. The oil is the cooling agent required to expel the heat out of the shock absorber via the outer casing. More oil and the larger outer surface area results in a more efficient radiation of heat. The Foam Cell Shock Absorbers are perfect for use in very demanding and hot offroad environments. Foam Cell shock absorbers also operate very well in smooth onroad applications and will provide a marginally softer and supple ride.
What does NATA stand for?
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NATA stands for National Association of Testing Authorities. It is Australia’s national laboratory accreditation authority which recognizes and promotes facilities competent in specific types of testing, measurements, inspection and calibration
Can I reuse rubber spring bushes?
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Ironman 4×4 always recommends to renew leaf spring bushes with polyurethane when new springs are fitted.
The extended range of travel provided by Ironman 4×4 leaf springs and longer shock absorbers can over-rotate and damage the rubber material. In all cases when a silent block press fit bush is used, it cannot be transferred to an Ironman 4×4 leaf spring.
Original 2-piece rubber bushes will fit Ironman 4×4 leaf springs, however it is not recommended. When greased, polyurethane allows greater rotational freedom on the shackle pins when compared to rubber.
Does polyurethane require re-greasing?
+
Yes, polyurethane bushes should be re-greased as part of a regular maintenance schedule.
Ironman 4×4 recommend a Molybdenum Disulphide based grease or other grease specified for use with polyurethane.
Can I assemble struts at home?
+
In most cases, no.
Ironman 4×4 recommend strut assembly be performed only by a qualified automotive mechanic using specialised strut compressor equipment. Assembled struts store large amounts of sprung energy. Only mechanics with necessary tools and equipment should attempt to disassemble or assemble a strut. Mishandling of strut assemblies can result in severe injury or death. Never loosen or remove strut centre top nut until all spring energy is retained within a high quality strut compressor.
The shock absorber does not self-extend with gas pressure?
Ironman 4×4 Nitro Gas shock absorbers will self-extend due to pressurised nitrogen gas contained within, the rate of gas extension offers little relevance in determining the health or performance of the shock absorber.
Ironman 4×4 Foam Cell shock absorbers will NOT self-extend like a gas pressurised shock absorber as they do not contain gas pressure – A Foam Cell shock absorber will generally feel firmer to extend than it will to compress.
If a gas shock absorber fails to self-extend, this may not indicate a problem, it may simply be due to a dry or dirty piston rod, firm valving resistance or due to low gas pressure design. This does not adversely affect performance.
Avoid removing the thin film of oil from the piston rod, it is required for smooth seal operation and lubrication. A light oil may be used to rejuvenate the seal if a squeak is present.
What is unique about Ironman coil springs?
+
The thing that makes Ironman leaf and coil springs unique is that they are designed to match driving style and vehicle use. Generally most 4×4 owners are totally obsessed by how much lift they can achieve for a vehicle.
Ironman 4×4 Suspension however concentrates on improving ride, handling, comfort and control while also providing lift. These design concerns are made without compromising safety and will make driving your vehicle a pleasure.
Ironman leaf and coil springs allow 4×4 owners to choose the right design of springs that suits their driving style. So whether you drive on road, off road or with a constant load you can find the Ironman spring that suits you. In some models we offer four different spring designs to cover all driving styles.
How much lift can I expect from Ironman springs?
+
Ironman leaf springs lift vehicles around 50mm above new vehicle ride height.
Ironman coil springs lift vehicles around 40-50mm from new vehicle ride height.
Vehicles with Independent Suspension are limited to 25-50mm lift (vehicle dependant) due to the geometry restraints inherent by this design of suspension.
Will my ride feel firmer after fitting Ironman springs?
+
Yes it can. However, nobody wants a rigid and stiff suspension. Ironman springs will firm the ride and support the load, but when used in conjunction with Ironman Shock Absorbers, the ride will also become noticeably smoother. With this combination you benefit from a strong and responsive handling vehicle, but with the comfort and flexibility you desire.
Can I use standard length shock absorbers?
+
Yes.*
The standard length shock absorbers installed with new vehicles are designed to sit in the middle of their travel. Installing Ironman springs will make them to sit higher in their range of travel. This will not affect shock performance and you can enjoy the improved performance of Ironman springs.
* Except Competition Lift Kits.
Can I use shock absorbers with standard height springs?
+
Yes.*
Ironman Shock Absorbers will sit slightly lower in their travel when installed to standard length springs. This will not affect shock performance. Ironman springs and shock absorbers have been “tuned” to work in conjunction, to produce a truly harmonized result.
* Except Competition Lift Kits.
Can I adjust the strut seat height?
+
Ironman 4×4 struts feature an adjustable height spring seat. 12xxx & 24xxx series struts utilise a trim packer system, 45xxx series struts utilise a threaded strut body.
Seat height cannot be adjusted whilst in vehicle, strut must be removed from vehicle with spring tension unloaded to enable adjustment. The purpose of this adjustment feature is to allow recalibration of ride height following the installation of heavy accessories or to compensate spring settling.
Not to be used as a variable ride height system. An increase in seat height beyond OEM specifications may result in excessive lift and non-compliance to state or federal laws.
A minimum 60mm suspension droop must be available at all times.
Nitro Gas or Foam Cell?
+
4×4 Shock Absorbers used in smooth onroad conditions are judged upon their ability to provide a smooth controlled ride and handling, this means they must accommodate a stiffer valve performance to counter-act body roll and dive etc. An Ironman Shock absorber has been carefully designed to create the correct balance between firmness and comfort.
4×4 Shock Absorbers used in offroad applications generate enormous amounts of heat. Essentially, a shock absorber converts the energy of the spring movement into heat, it is vital to keep the shock absorber as cool as possible for maximum efficiency. Too much heat will cause “Shock Fade” and a poor vehicle ride and handling.
Ironman offers two distinct Shock Absorber concepts to cater for the needs of today’s 4×4 vehicles. 35mm piston, Nitro Gas Shock Absorbers are ideal for the general purpose user, with excellent performance in all terrain, from smooth tarmac surface through to the most demanding corrugations or rocks. Best for the all-rounder who mainly drives onroad, and the occasional adventure weekend and trip away.
41mm piston Foam Cell Shock Absorbers are constructed similar to the Nitro Gas, with the exception being their increase in piston size and the use of the cellular foam sleeve inside. The compact foam cell sleeve replaces the gas charge. The foam sleeve occupies less space inside the shock absorber than the gas charge, allowing more oil inside the shock absorber. The oil is the cooling agent required to expel the heat out of the shock absorber via the outer casing. More oil and the larger outer surface area results in a more efficient radiation of heat. The Foam Cell Shock Absorbers are perfect for use in very demanding and hot offroad environments. Foam Cell shock absorbers also operate very well in smooth onroad applications and will provide a marginally softer and supple ride.
What does NATA stand for?
+
NATA stands for National Association of Testing Authorities. It is Australia’s national laboratory accreditation authority which recognizes and promotes facilities competent in specific types of testing, measurements, inspection and calibration
Can I reuse rubber spring bushes?
+
Ironman 4×4 always recommends to renew leaf spring bushes with polyurethane when new springs are fitted.
The extended range of travel provided by Ironman 4×4 leaf springs and longer shock absorbers can over-rotate and damage the rubber material. In all cases when a silent block press fit bush is used, it cannot be transferred to an Ironman 4×4 leaf spring.
Original 2-piece rubber bushes will fit Ironman 4×4 leaf springs, however it is not recommended. When greased, polyurethane allows greater rotational freedom on the shackle pins when compared to rubber.
Does polyurethane require re-greasing?
+
Yes, polyurethane bushes should be re-greased as part of a regular maintenance schedule.
Ironman 4×4 recommend a Molybdenum Disulphide based grease or other grease specified for use with polyurethane.
Can I assemble struts at home?
+
In most cases, no.
Ironman 4×4 recommend strut assembly be performed only by a qualified automotive mechanic using specialised strut compressor equipment. Assembled struts store large amounts of sprung energy. Only mechanics with necessary tools and equipment should attempt to disassemble or assemble a strut. Mishandling of strut assemblies can result in severe injury or death. Never loosen or remove strut centre top nut until all spring energy is retained within a high quality strut compressor.
The shock absorber does not self-extend with gas pressure?
Ironman 4×4 Nitro Gas shock absorbers will self-extend due to pressurised nitrogen gas contained within, the rate of gas extension offers little relevance in determining the health or performance of the shock absorber.
Ironman 4×4 Foam Cell shock absorbers will NOT self-extend like a gas pressurised shock absorber as they do not contain gas pressure – A Foam Cell shock absorber will generally feel firmer to extend than it will to compress.
If a gas shock absorber fails to self-extend, this may not indicate a problem, it may simply be due to a dry or dirty piston rod, firm valving resistance or due to low gas pressure design. This does not adversely affect performance.
Avoid removing the thin film of oil from the piston rod, it is required for smooth seal operation and lubrication. A light oil may be used to rejuvenate the seal if a squeak is present.
