Tein H tech springs are performance lowering springs, that use the newest spring and material technology to be able to create a more comfortable ride with lasting performance and quality. The Tein H tech springs are made with Vanadium or SAE6254V. This is a lightweight and very strong metal for the Tein H tech springs, and allows those people who are looking for a slightly lowered profile but still have a high quality ride to experience the Tein expertise. The Acura Tein H tech springs are available for models from 1997 to current, and range in price from $250 to $340 depending on the seller. BMW is the next most popular Tein H tech springs model cars, and these are available from 1993 to present. A set of Tein H tech springs for these vehicles ranges in price from $270 to $300. For Chevy vehicles, the only model of Tein H tech springs available is for the 1995 to 2004 Cavalier, and these can be purchased for about $220. The next most popular model vehicle for these springs is the Honda Accord, and these are available from years 1990 to present ranging in price from $280 to $400.

Ksport springs are a type of lowering springs that are made to give a vehicle the best handling, with a race car appearance. Ksport springs uses progressive rates so that a comfortable ride is felt when driving under normal circumstances. There is never a body roll felt during heavy braking with Ksport springs, or during fast acceleration like most other lowering springs. Ksport springs lower your car’s center of gravity so that handling is better than with most other springs, and Ksport springs help with performance under racing circumstances. Ksport springs offer the GT model, which are made to give great handling. These Ksport springs are available for Acura, BMW 3 series, some Chevrolet models, Dodge, Ford, Honda as well as many others.

Tein H Tech Springs and Ksport Springs.

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Key Parameters and Reference Numbers

Spring Diameter: Helical compression springs can be described by three different diametric numbers:

outside diameter (“OD” ) is specified when the spring will function in a cavity

inside diameter (“ID”) is specified when the spring will function over a rod or shaft

mean diameter (“D”) is used in the stress and deflection calculations, and is equal to half the sum of the outside and inside diameters.

Wire Diameter: (“d”) is the diameter of the wire used to manufacture the spring and is a factor used to calculate spring index.

Spring Index: The ratio of the mean coil diameter to wire diameter (D/d). Springs with an index higher than 12 can tangle; springs with an index lower than 4 can be difficult to form. Therefore, for ease of manufacturing and packaging, the preferred spring index range is from 4 to 12.

Free Length: “L o “; the overall length of an unloaded (“free”) spring.

Solid Height: “L s “, the minimum length of a compression spring with all of its coils closed, when no further deflection is caused by additional load. If solid height is a critical application dimension, it should be specified as a maximum–generally figured as the solid height plus an allowance equal to half of the wire diameter.

Number of Coils: Active coils (“N a”) are the coils in a compression spring that are free to deflect under load. For squared-end springs, N a is equal to the total number of coils (“N t”) minus 2 (the turns at each end that are inactive, or “dead”, and in contact with the spring seat). The number of active coils in a plain-end spring is greater and depends on the seating method. The greater the number of active coils, the lower the spring rate.

Pitch: “p”, the distance between wire centers in adjacent active coils. Current recommended practice is to specify the number of active coils rather than pitch.

Spring Rate: The change in load per unit of deflection, generally expressed in pounds per inch. Spring rate is determined by the amount of force, in pounds, required to constrict a spring by one inch. Material size directly impacts spring rate. For example, increasing a wire diameter by 1 percent will result in a 4 percent stronger spring; decreasing diameter by 1 percent will result in a 4 percent weaker spring. Increasing the mean diameter by 1 percent will decrease the spring rate by 1 percent. Adding coils weakens the rate, while removing coils strengthens the rate.

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Torsion springs are by far and away the most popular style and are used by about 90% of all manufacturers in one form or another. They are mounted on a 1″ shaft directly above the door in a single or double configuration. On most doors the spring will be centered in the middle of the door but on rare occasions they are mounted directly to the cable drums or located near the back of the door tracks for cases where there is a low clearance situation. This system provides a very calculate lift amount measured by inch pounds per turn (IPPT) based on the weight of the door, it’s height, the track configuration, cable drum size and cycle life. Cycle life is the number of times you can open and close your door before you would expect your spring to break. Torsion springs can be bought with a variety of different exterior coatings from your standard oil tempered, galvanized, stainless steel or the most popular which is a rust inhibiting black coating. Torsion springs can be very dangerous and should be handled with extreme care. If you are looking to repair or replace your torsion spring yourself they can be tricky to locate and typically will require you to purchase them online.

You can expect to pay between $20-$50 per spring based on its lifting capacity and cycle life. Most online places that you can buy springs from also provide a good online source that will guide you through the process on how to simply measure your garage door spring. Don’t forget to order your spring winding bars when you order your springs. There is no substitute for having the right tools.

The next most popular spring system is probably the garage door extension spring. The stretch spring lifting system has been around for a very long time. These springs are generally located just above the horizontal door tracks. The spring gets its lifting capacity from being pulled or stretched as the garage door closes. Most garage doors use a single spring system utilizing one spring on each side of the garage door track. The springs will have a cable pulley secured at one end of the spring and the other end will be anchored where the door tracks are supported. A cable will run from the garage doors bottom bracket up to a cable located just above the door around the pulley that is secured to the spring and back to the front track area. Garage door stretch springs are rated by there lifting capacity usually using a weight. If you need to purchase springs for a door weighing 160 lbs you would order 160lb springs. The pair together would be capable of lifting the 160lb door.

If you are unsure of the doors weight simply get the assistant of a strong neighbor lift the door slightly and slide a bathroom scale under it. Typically this style spring or spring components can be replaced relatively easily with the door secured in the open position. You can buy extension springs online and also on occasion find a small selection at a hardware store. You will pay somewhere between $15-$29 per spring for most extension springs depending on its lift capacity.

Lastly we cannot leave you without mentioning the newest latest and greatest system to hit the market. The Wayne Dalton Torquemaster Spring is extremely safe and easy to install and repair with basic hand tools. The spring is actually located inside the tube and tension added to the spring with a standard power drill or wrench. The torquemaster spring system uses all the same calculations and engineering that goes into a torsion spring but is neatly slide inside a teardrop shaped tube out of the elements. Generally these springs last approximately 10,000 cycles or so and provide a very smooth quite operation. Unfortunately Wayne Dalton is the only garage door that comes with this system. If you are looking for a DIY door to install it’s the door I would recommend for the safety reasons alone. If you are looking to buy a replacement Torquemaster garage door spring they are a little hard to come by and can only be bought through a Wayne Dalton garage door dealer or a online retailer. You can expect to pay between $50-$75 for one spring or $90-$120 for a pair of springs.

Hopefully you gained some basic knowledge and understanding of garage door counterbalance systems and can identify your lifting system. Remember garage door repairs are dangerous and you always need to wear safety glasses gloves and use the proper tools when working on your garage door. If you do not feel comfortable performing the repair or are of unsure of the procedures always call your local garage door technician.

Michael Fett

More information on garage door torsion springs can be found at Star Door Parts: http://www.stardoorparts.com/Garage_Door_Torsion_Spring_Supplier_and_Distributor_s/40.htm.

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