Rear shock adjustment for ride height

[sea2jet]

I have the optional outboard brake rear with one shock per side. I wanted to lower the rear of the car by 1 inch. I jacked up the rear. The spanner nuts were about 3/4 of the up compressing the spring. Once I lowered them down to about 1/4 from the bottom, the springs were loose with about an inch of free space at the top. I slowly lowered the car and positioned the springs. It sits great now but I'm wondering if I need longer springs with less tension or a spacer in there? Or am I good to go the way it is. Thanks...

[strictlypersonl]

I've heard of very light springs used to take up extra free length, but I couldn't find them on-line. I just have to figure the proper nomenclature. the 2.25ID could make things more difficult though.

*Found these. It says you'll also need coupling spacers:
Damn... It refuses to link to the page. Go to summitracing.com and search for "eibach spacer inside"

[sea2jet]

Thanks Bob, so do you think I need the 2.25" inside diameter/150 lbs/ 1.75" long springs with the 2.25 inside diameter coupling spacers? Do you think it makes a difference mounting them on the top or bottom? Have a great weekend...

[scottj]

I use Hyperco zero-rate helper springs. They are available in 2.25" and 2.5" with spring dividers. The helper spring goes on top.

https://www.pegasusautoracing.com/pr...p?Product=1875

https://www.pegasusautoracing.com/pr...gmVBoC1ZHw_wcB

The springs you are asking about are for a stacked-spring dual rate setup which is a whole other deal.

[sea2jet]

Thanks Scott, I just placed an order for the ones you suggested.

[Morris]

Originally Posted by scottj

I use Hyperco zero-rate helper springs. They are available in 2.25" and 2.5" with spring dividers. The helper spring goes on top.

https://www.pegasusautoracing.com/pr...p?Product=1875

https://www.pegasusautoracing.com/pr...gmVBoC1ZHw_wcB

The springs you are asking about are for a stacked-spring dual rate setup which is a whole other deal.

You might need these.....

Genesis Technologies | C/O Spring Spacer 2.25" ID x 1" Tall - each, P/n: GC1032

[Morris]

On the rear shocks we use a Torrington Thrust bearings with two spacers....under the spring.

[wolf k]

sea2jet, I know your set with the pegasus helper springs, but for any future forum searchers, Eibach makes helper springs for this issue also. Bought mine through Summit, as Bob was referencing.
Since sea2jet wants to lower his ride height with his original springs, solid spring spacers that Morris highlighted will not work for his purpose.

[Morris]

Take a look at this .... you are missing the trick....

With the Thrust Bearings the spring is allowed to move around the shock in a circular motion as its oscillating up and down....So the collar acts as a locater for the helper spring and the Spring.... but it also hides the thrust bearing that the main spring is sitting on and allows circular movement as it moves thru it's travel




This does two things.... it keeps the spring from binding up as it moves thru it's travel in all directions.....

And it allows you to make height adjustments easily by just using your hands to turn the spring up or down as you need 1 or 2 turns at the track to get more temperture in a particular tire..

[wolf k]

Morris thanks, I see that now.
A little off topic, but what is the advantage of allowing one end of the spring to freely rotate as it is compressed? We are just talking about a couple of degrees of rotation? Can this be a benefit to a street driven car?

[Morris]

Originally Posted by wolf k

Morris thanks, I see that now.
A little off topic, but what is the advantage of allowing one end of the spring to freely rotate as it is compressed? We are just talking about a couple of degrees of rotation? Can this be a benefit to a street driven car?

Wolf

Anytime you can take a bind out of any suspension .....the suspension will respond accordingly....and give you more accurate readings.....btw....it moves more then a couple of degrees...depending on the amount of travel....

And it's easier to raise and lower the spring height as needed.....street/track/autocross/speed bumps.....

[sea2jet]

The wealth of knowledge on this board is nothing short of amazing ��

[sea2jet]

The wealth of knowledge on this board is nothing short of amazing 😉