coilover spring rate help

[Neil Allan]

Im wanting to change my coilover springs to a softer rate next week before i put my car in for a geo set up. I have phoned the manufacturer of the coilovers in America and the gave me the spec of the softer springs they would supply but they dont have any in stock.

Specs are in american sizes Front 7kg Spring 62mm ID 150mm Length
Rear 10kg Spring 62mm ID 180mm Length

Could anyone convert these to normal specs and any sugestions of where to get them.
Thanks

[TheEnd]

American would be pounds per inch etc, you have the metric stuff there, 7kg/mm, 150mm free length etc

[TheEnd]

Neil Allan said:

Specs are in american sizes Front 7kg Spring 62mm ID 150mm Length
Rear 10kg Spring 62mm ID 180mm Length

Could anyone convert these to normal specs and any sugestions of where to get them.
Thanks

7kg/mm - 392p/i
150mm- 6 inch
62mm - 2.5 inch

http://www.merlinmotorsport.co.uk/product_info.php...


10kg - 560p/i
180mm- 7 inch
62mm-2.5 inch

max merlin do in faulkner is 400lbs, eibach list some, or where ever

[Neil Allan]

Oh sorry just when looking on sites here most of the rates were in lb.

Had a dig around on the net and found some convertors so looks like they are

Front 392lb . 2.5" . 6"
Rear 560lb . 2.5" .7"

Could anyone confirm that and give me an idea of where to get them.

Edited by Neil Allan on Friday 9th October 22:18

[Neil Allan]

TheEnd thanks alot for that just checked out there site and they have 400 front , 575 rears so looks like i will be ordering from them. Car currently has 450 fronts and 670 rear .

[TheEnd]

I think you'll want to be looking a 2.5 inch springs, or at least ask them if 62mm metric is the same as 2.5inch imp, as 2.25 inch at 57mm which will be tight if you *need* 62mm.

If there are dedicated metric 62mm, then you'll need to find them.

[Neil Allan]

Good point messed up with my calcs, ive edited my post will give them a call on Monday to see what they can do.