Lowering

(Difference between revisions)

Revision as of 06:42, 21 November 2009

Lowering the car makes it handle transitions better. And it looks cool. A common way to achieve this is:

• Fit ready-made lowering front coil springs
• Re-arch the rear leaf springs (or fit lowering blocks).

These and more advanced lowering methods are discussed below.

The Nissan Competition springs (PN 54010-H1070) are 110 lb/in rated and lower the 1200 about two inches (see Front Suspension Specification). A 1/2 thick bump rubber stop must be installed on the shock rod. These can be made by cutting down the stock rubber bumpers.

Using stiffer springs can lower the car further, but steps must be taken to keep the spring from falling out of the lower seat at full suspension droop. The end coils of the spring must be securely wired to strapped to both the top and bottom seats.

Cut Springs Yourself, or Pay a Professional to Them?

If you need extra stiff springs, or want to carefully match the springs to an intended result, you can't go wrong by working with a professional, reputable spring company. Since their business is springs, they presumably won't make stupid mistakes like cut the springs too far

Rear Suspension

• Lowering blocks are the low-buck solution, but using modified springs is a better way. The spring eyes can be "reversed" or the leaf(s) can be flattened

  discussion: reverse eye leaf suspension

  discussion: Lowering rear end of a 1200

Here's what they do in USA and Japan.

From "best/most expensive" to "more controversial/less expensive"

1. Fit special-design lowering springs
2. Re-arch the leaf springs
3. fit lowering blocks
4. Flip main leaf

Flipping

One way to lower the rear is to add another spring to your rear leaf spring pack and reverse one onto the top of the pack, while flipping it. This should lower and stiffen the rear end slightly.

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We accept no responsibility for damage to your self, others personally or property. YOU take the risk of working on your car and should follow all safe and accepted work practices.

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To flip the rear leaf springs:

1. up the car, take off the wheels

   

   Make sure you use axle stands on the rear chasis and another pair on the rear axle assembly so it doesnt drop to the ground.

2. Unbolt the U bolts from the rear axle, spring pack and then un bolt the front 3 mounts for the leaves. Unbolt the rear bolts and remove the spring pack

   

3. Now using G clamps, compress the spring pack and unbolt the center locating bolt. Then slowly undo G clamps releasing the spring pack to individual leaves

   

4. Flip the 2nd bottom spring onto the top of the pack and added another longer 2nd bottom leaf.

   

5. Using a long screw driver through the center locating holes, loosely repacking them then doing them up tight and slowly with the G clamps again till completely compressed. USe the screw driver tho keep the leaves aligned. Once compressed, re insert the center securing bolt and tighten.

   

6. Re installation is reverse procedure of removal