I know everyone is against cutting springs.. but i really dont see no down sides of cutting a single progressive coil...

if you have seen a rear ITR spring u would know how closely wounded they are..

I simply chopped off one progessive coil...
the springs still sits flat on the gound... cut very cleanly....
Im also running koni yellows on the lowest perch.. the rear was higher as my car is a civic si99

OK to my question...

by cutting a progessive coil would my upper spring rate change?

ITR springs are know to be 250lbs rear progressive...

If i cut a progessive coil off would my rate be still 250?

thanks in advance,
daniel


Modified by Civic168 at 3:15 PM 11/16/2005

 

put it on a spring tester and find out.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Civic168 &raquo;</TD></TR><TR><TD CLASS="quote">
If i cut a progessive coil off would my rate be still 250?
</TD></TR></TABLE>

nope

 

actually, your effective spring rate is probably the same.

if you just a progressive coil, or "dead" coil, once its bottomed out, its not a factor.

 

thats what i was thinking...hmzzs........

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tyson &raquo;</TD></TR><TR><TD CLASS="quote">actually, your effective spring rate is probably the same.

if you just a progressive coil, or "dead" coil, once its bottomed out, its not a factor.

</TD></TR></TABLE>

I still think it will go up, if the coil was bound under static load I doubt it would have been there in the first place.

 

shrug, like i said, once the coil is bound, its not a factor.

find me a picture of a ITR spring. installed.

civic168, wanna provide pics?


hmmm ya, that rear spring looks pretty well spaced out, not gonna bind any time soon. civic168, you just raised your spring rate.



too bad RJ's big masturbating hand is covering the top of the spring for a good look just to be sure.


but i know a lot of aftermarket coils are designed with a few dead coils to get a stiffer rate with a smaller than ideal wire. in those cases, it would be suitable to cut. but theyre usually already low springs, so cutting to get lower isnt doing any good.

 

Them pics are very BIAS... u cant even see the top of the springs... the hand covers it!!!!!

look at pic here
https://honda-tech.com/zerothread?id=667885

2nd pic.. spring on the far right is a rear spring..

the pics u provided u cant even see the top of the spring.

 

if you can show that with the rear end loaded (put a jack under it) the stock spring has the top coils compressed and binding, then sure, its a dead coil.

if it takes like an inch of travel for it to bind, then its still part of the progressive spring rate.

 

i say this everytime i read a thread about cutting springs, i saw chip foose's boys cut springs on a stang they did

 

Cut springs = Teh noob

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kyles ej1 &raquo;</TD></TR><TR><TD CLASS="quote">i say this everytime i read a thread about cutting springs, i saw chip foose's boys cut springs on a stang they did </TD></TR></TABLE>

Oh in that case it must be ok. Since the guys that work on cars on TV know everything.

Foose is a great designer and he makes some of the best looking cars around, but what does that have to do with his knowledge of suspension tuning?

 

actually, from what little i know about the antiquated mustang suspension, mustangs would benefit a lot from the direct effects of cutting springs by lowering and increasing spring rate. they got such a messed up camber curve that anything that limits it in the negative zone is a good thing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dc4g &raquo;</TD></TR><TR><TD CLASS="quote">Cut springs = Teh noob</TD></TR></TABLE>

such an awesome quote......Sounds like something a 3rd grader would write.

Yager-

 

rear itr springs are not progressive. i believe the specs are 250 progressive front and 250 linear rear. also cutting springs is retarded with the amount of cheap just as effective lowering springs on the market.

 

they are progressive...
jsut proves how much BS some people know...

they are even shown in the pictures.... do some research and stop looking at ****..

if cutting a progressive coil changes your upper springs rate......... what happens to your lower springs rate?
if its a progressive coil how should it effect your upper springs rate.. as it as mentioned its a dead coil.

 

cutting springs are bad...

do u even know why its bad?

its bad cause it becomes unsprung... if u cut too much it wount sit flat in the top or bottom cups...

seriously... you say cutting a spring is bad? do u even know why?

All was cut was a single progressive coil.... the top coil on a std ITR spring is dead progressively flat......... if u dont drive and ITR go look for one to check....

My rear spring... with one top progressive coil sits captive... and can sit on its head... better than most after market springs l

 

The coil that was removed..... its the far right springs...

If u tell me that isnt progressive and not a dead coil then u to rethink your mechanical knowledge... the springs is upside down. (3rd spring)

 

looking at the picture, i wouldnt have cut them.

thats not what i would call a progressive spring. a spring is NOT going to be totally linear at the end coils, its just part of the difficulty of making a proper spring, and its nearly impossible. so past the first coil, i wouldnt call it progressive at all.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tyson &raquo;</TD></TR><TR><TD CLASS="quote">a spring is NOT going to be totally linear at the end coils</TD></TR></TABLE>

Even linear rate springs exhibit some progressive behavior as the coils on the ends bind.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Civic168 &raquo;</TD></TR><TR><TD CLASS="quote">cutting springs are bad...

do u even know why its bad?

its bad cause it becomes unsprung... if u cut too much it wount sit flat in the top or bottom cups...

seriously... you say cutting a spring is bad? do u even know why?

All was cut was a single progressive coil.... the top coil on a std ITR spring is dead progressively flat......... if u dont drive and ITR go look for one to check....

My rear spring... with one top progressive coil sits captive... and can sit on its head... better than most after market springs l </TD></TR></TABLE>

If you know so much why are you posting the question? Tell me how it's possible to have a single rate on a progressive spring? Progressive springs don't have rates like 250 lb/ft.

So, if the spring was linear, and we knew all of the dimensions you started with and the dimensions that you ended up with after cutting, we could tell you a rate. Since the spring is progressive the only way to tell is by using a spring tester, and even then there's not going to be a single rate. You will need to test it at certain intervals through the regular range of motion. After all of that you'll have some numbers that will be basically meaningless. Why do you need to know the rates of a progressive spring anyway? Put it on the car and let us know if you like it.