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Old 10-29-2005, 05:37 PM
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Coilovers, how do you adjust them?

Hi,

I am working on at Triumph TR6. I have bought a set of Aldan Eagle coilovers for the rear suspension. The are on the car and all is well, however I have a question on how to properly 'load' the coilovers.

What is the rule of thumb on how far to compress the springs? I mean, do you just tighten the nut a a few rounds, or does it have to go halfway or what? I mean, the more you compress the spring, does it have anything to do with ride height?

I am really puzzled as to how far the nut has to be taken. Please, guys any help would be appreciated.

thanks,
joe

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Old 10-29-2005, 06:16 PM
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As the Moderator of this section......and a South Carolina resident too.....I would like to WELCOME YOU HERE....

As a general rule......the more you compress the spring ( coil ) the higher the car will sit and the higher the spring rate is......or that has been my experience with coil overs......

DEUCE.....

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Old 10-29-2005, 06:44 PM
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Deuce!

Thank you sir! This is the information I was looking for. I have the coil nut say about 5 or 6 threads in (that many are showing). Suppose I take the nut in, about halfway into the threads. By what you just told me, the car will ride higher, right? Is this going to make it ride higher by several inches, or is it by a much smaller rate?

I know, the answer is for me to go experiment. The kicker is that in order to do this, I have to take the coilover completely out of the rear suspension. It is quite a pain in the back! <g>...

Thanks for the info you gave me...

thanks,
joe
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Old 10-29-2005, 07:40 PM
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Straight from Aldan:

"DRAG RACING / PRO STREET INSTALLATION: For this purpose, it is recommeded that the shocks be installed straight up and down with a center to center distance between the mounting eyes of 14". This is the ideal installation height for drag racing. You should be able to arrive at this center to center distance with the lower spring seat set at approximately in the middle of the threaded area of the shock. If you can't arrive at this 14" distance by adjusting the spring seat slightly, then the spring rate is too soft or too hard for your application and you will need to exchange the spring for the correct rate. After installing the shocks and arriving at the 14" installed height the car either sits too high or too low it will be necessary to relocate either the upper or lower shock mounts to get the correct ride height for the car. DO NOT MAKE ADJUSTMENTS to the ride height by changing the installed height of the shocks. This will result in poor performance of the shock. For this reason we highly recommend an adjustable lower shock mount."

There is a section on "street rods, road racing or street use" but it only adds stuff about how shock angles affect ride quality.

HTH,

Russ
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Old 10-29-2005, 08:09 PM
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Russ,

where exactly on the Aldan website did you get this info. All I seem to find there is the pdf for the sales brochure and some other stufff but not the info you quoted me. What is the url you are looking at?

thanks,
joe
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Old 10-29-2005, 08:17 PM
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Wasn't on the website, got this paper in the box with the coilovers. I can scan them as a TIF or JPG and e-mail them to you. Send me an e-mail and I'll attach them for you, or I could just post them here tomorrow.
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Old 10-29-2005, 08:22 PM
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Russ,

where exactly on the Aldan website did you get this info. All I seem to find there is the pdf for the sales brochure and some other stufff but not the info you quoted me. What is the url you are looking at?

thanks,
joe
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Old 10-30-2005, 10:25 AM
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For other who may be interested: (EDIT - if they view funny, try "save as" and then view them from your 'puter)
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Old 10-30-2005, 07:44 PM
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I'm sure it was just a bit of carelessness on the part of Deuce, but adjusting a coilover does not change the spring rate. As the Aldan information states, you have to go to different springs to change the rate.

If possible, you should borrow some wheel scales from one of your oval track friends and adjust for equal rear wheel loading.
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