Possible extra lows?

mercutio · Post by **mercutio** » Tue Jun 25, 2013 8:22 pm

only become brittle if you douse them in water to cool them afaik the heating up to relax springs is an old trick but it has to be done uniformly around the coil or they wont drop straight

mercutio · Post by **mercutio** » Tue Jun 25, 2013 8:23 pm

oh and it changes the spring rate so not a good idea especially on more modern machinery where spring rates make a huge difference

Post by **paul72** » Tue Jun 25, 2013 9:43 pm

I didnt let them do it to mine but then again if u met our blokes at work u wudnt let them change ur tyres

YouTube · Post by **Sailor** » Wed Jun 26, 2013 12:52 am

bb1boy wrote: my rear suspension coil springs have about 4 coils at the top that are permanently compressed

Do you mean that they're actually touching each other, or just closer together than the mid sections?

bb1boy · Post by **bb1boy** » Thu Jun 27, 2013 10:25 am

@Sailor, the top 3 coils are actually touching.

Crazy_C · Post by **Crazy_C** » Thu Jun 27, 2013 7:54 pm

I've run cut springs on a lot of cars, the Holden had front springs that were cut in half!!! Aerodeck has 2 coils out the rear. As long as its font properly, it should be fine.

YouTube · Post by **Sailor** » Fri Jun 28, 2013 1:16 am

bb1boy wrote:@Sailor, the top 3 coils are actually touching.

Compression springs with coils which are actually touching in the 'relaxed' position won't work properly.

Think of the spring 'unrolled' out to a straight bar: the flex works the same, which is why fewer coils are stiffer than more (ie: the bar is shorter). Your three touching coils are in effect trying to bend three bits of bar held together. And when you load them, you're making them rub together as they move. You shouldn't lose a lot of compressibility by cutting off the first 2 coils of a spring in this condition. How many coils do you have altogether?

I don't believe cutting springs is a good idea. Far better to get the right ones in the first place.

If you must: start here:-
http://www.eatonsprings.com/cuttingcoilsprings.html
and
http://forums.turbobricks.com/showthread.php?t=165499

Oh, and don't forget to make sure your shocks will still work properly when you've finished ...

bb1boy · Post by **bb1boy** » Fri Jun 28, 2013 10:08 am

This is what the rear shock looks like off the car, you can see the compressed coils at the top.

YouTube · Post by **Sailor** » Fri Jun 28, 2013 11:14 pm

If that's a pair, they should look the same!

bb1boy · Post by **bb1boy** » Fri Jun 28, 2013 11:29 pm

The little bit of a spring you can see is of a front one so they are different.