corsa b/c springs on a cav

[cavgsi20009]

i know the back ones fit but will the front and how much lower do they sit than the actual cav springs

[himselfunknown]

Although they will physically fit I wouldn't recommend using them as they will be the wrong spring rate for the weight of car.

If you're looking to lower your Cav, then some proper lowering springs are the way forward.

They will lower the car but maintain the correct spring rate.

[TurboDan]

I think corsa springs on the back is fine and it will look great but corsa springs on the front is a bad idea! It will be so low due to the weight of the cav, i wouldn't bother.

[luketd]

i would listen to the advice that others have gave you i was the plum that didnt listen i fitted corsa b 60s to the front of mine it sits around 80mm on the front but in the space of 3 month i have destroyed 2 bottom arms a track rod end 2 shafts and a wheel bearing go for it if you have bottomless pockets or a garage full of spares and can put up with the bouncing lol i wouldnt fit them again.

[cavboy180]

i do agree, though i fitted corsa 50mm on the back and have to say it is very hard.... Would NEVER fit them on the front though like everyone else has said.... My humble opinion

[jimmy]

I agree that corsa springs on the front is a big no no just like cutting springs is a big no no doing such things could actually be very dangerous and seriously fail!!!

And I can't understand why you would fit corsa springs on the back either???
If you had say cav -60 on front then corsa -60 on back its going to sit lower at the back which I personally think looks daft

Imo they should sit level or slightly lower up front

[snowy]

I agree that corsa springs on the front is a big no no just like cutting springs is a big no no doing such things could actually be very dangerous and seriously fail!!!

Cutting springs if fine as long as you do not over heat the spring and you re-temper them. Most people do not do it properly though, and that is dangerous.

[btcctroy]

cutting srings is fine as long as they fit in the cups and are not heated as stated

most modern springs are smaller at one end so means its not possible.

[cavboy180]

That's why i put 50mm on the bck Jimmy as the standard 60mm springs still left the back quite high - these levelled it out a bit more and as i rarely have passengers i wasn't that bothered about the ride in the back...

[buffkane]

I wouldnt go to the extreme of corsa springs, but i have used a smaller car lowering springs,

im currently building a track belmont had a set of 40mm lowering springs for it. But ive upgraded to astra GTE 60mm springs for that.

So i used the belmont 40mm springs of the car lowered it about 50mm instead but drives like a dream, not had no issuses with anything getting broken or anythnig like that. But i personally would not use corsa as thats an exteme weight differents compared to a belmont (mk2 astra Saloon for thoses that dont know)

[jimmy]

That's why i put 50mm on the bck Jimmy as the standard 60mm springs still left the back quite high - these levelled it out a bit more and as i rarely have passengers i wasn't that bothered about the ride in the back...

I remembered you posting this somewhere else lol

I agree that corsa springs on the front is a big no no just like cutting springs is a big no no doing such things could actually be very dangerous and seriously fail!!!

Cutting springs if fine as long as you do not over heat the spring and you re-temper them. Most people do not do it properly though, and that is dangerous.

cutting srings is fine as long as they fit in the cups and are not heated as stated

most modern springs are smaller at one end so means its not possible.

That maybe so guys but at the end of the day they are a major component and have the potential to be very dangerous they're made the way they are for a reason in my honest opinion I think it shouldn't be done on the basis they're made how they are for a reason

[cavboy180]

Jimmy, i totally respect what you say - I had them cut down on my mk2 astra years ago and the backs snapped and fell out.. not good on the M25 I tell ya!!

[snowy]

That's why i put 50mm on the bck Jimmy as the standard 60mm springs still left the back quite high - these levelled it out a bit more and as i rarely have passengers i wasn't that bothered about the ride in the back...

I remembered you posting this somewhere else lol

I agree that corsa springs on the front is a big no no just like cutting springs is a big no no doing such things could actually be very dangerous and seriously fail!!!

Cutting springs if fine as long as you do not over heat the spring and you re-temper them. Most people do not do it properly though, and that is dangerous.

cutting srings is fine as long as they fit in the cups and are not heated as stated

most modern springs are smaller at one end so means its not possible.

That maybe so guys but at the end of the day they are a major component and have the potential to be very dangerous they're made the way they are for a reason in my honest opinion I think it shouldn't be done on the basis they're made how they are for a reason

As a fully trained aerospace engineer with over fifteen years of experience i disagree. Modifiying springs is fine as long as it is done properly. There are even companies out there who will do it for you.

[luketd]

i have cut springs on a wide variety of different cars and to different drops in my experience either the springs snap and your car ends up lop sided or everything just disintergrates suspension components mostly i will be fitting cav 60s to the front of mine or if i can get some custom lower ones i will do that but corsa b 60s on a cav (td in my case) doesnt work due to poundage is all wrong dont get me wrong it is a unreal handling car but but do 30mph you take airbourne out the seat.

[jimmy]

It is not safe on pigtail springs think about it cavboy180 says he cut the springs they snapped and fell out this just proves it shouldn't be done on pigtail springs the rears as I'm sure you know are wider in the middle and pigtailed at the top and bottom cutting them means they aren't sat in they're mounting positions correctly not only that taking material away from the spring is making it weak due to being shorter but still having to control the same weight this in my opinion being the main reason as to why cavyboy180's springs snapped

If that was the case why is there so many different companies that manufacture lowering springs?

Since you say you are an engineer I'll ask the opinion of my father in law whom is also an engineer

[cavalier3822]

I very much doubt an aerospace engineer with 15 years experience would make the statement that cut springs are safe.

I am also an aerospace engineer, have been for the past 7 years and no matter what way you look at it, cutting standard springs is reckless and extremely dangerous to yourself, passengers of your car and others on the road.

Lowering springs were invented for a reason, lets face it, a decent set of springs DESIGNED for your model of car don't exactly cost much these days.

[jimmy]

I very much doubt an aerospace engineer with 15 years experience would make the statement that cut springs are safe.

I am also an aerospace engineer, have been for the past 7 years and no matter what way you look at it, cutting standard springs is reckless and extremely dangerous to yourself, passengers of your car and others on the road.

Lowering springs were invented for a reason, lets face it, a decent set of springs DESIGNED for your model of car don't exactly cost much these days.

That is exactly my point!!!

[cavboy180]

I agree with you both - cutting a no no!!

i do learn from experience sometimes...

[jimmy]

I very much doubt an aerospace engineer with 15 years experience would make the statement that cut springs are safe.

I am also an aerospace engineer, have been for the past 7 years and no matter what way you look at it, cutting standard springs is reckless and extremely dangerous to yourself, passengers of your car and others on the road.

Lowering springs were invented for a reason, lets face it, a decent set of springs DESIGNED for your model of car don't exactly cost much these days.

He basically is saying its safe if read the quote below in my opinion saying its ok to do it if you do it properly is saying its safe really

As a fully trained aerospace engineer with over fifteen years of experience i disagree. Modifiying springs is fine as long as it is done properly. There are even companies out there who will do it for you.

[cavalier3822]

ok, I work on aircraft but the basic physics are the same, if you believe heating the spring and doing it 'properly' works then I am sorry but I would be seriously concerned with his work if thats his professional judgement.

[snowy]

ok, I work on aircraft but the basic physics are the same, if you believe heating the spring and doing it 'properly' works then I am sorry but I would be seriously concerned with his work if thats his professional judgement.

If you read what i said i never mention heating the spring at all!

Also it is safe it done properly.

There are companies out there that specialise in this. For example. When i modded my mk3 cortina these were not popular enough to have lower springs off the shelf. So demon tweeks, when they used to be good, took springs from the mk5 cortina of standard length and had them cut to the required length.

The engineer there who did this even had a calculation for getting the correct ride height.

So a statment that cutting springs is unsafe is silly. not doing it properly is unsafe. This is all my stament said.

The problem is most people think, and do, just take a grinder to the spring and think that will be ok. I agree it is not.

But there is no problem with shortening springs if done propelrly.

[jimmy]

ok, I work on aircraft but the basic physics are the same, if you believe heating the spring and doing it 'properly' works then I am sorry but I would be seriously concerned with his work if thats his professional judgement.

If you read what i said i never mention heating the spring at all!

Also it is safe it done properly.

There are companies out there that specialise in this. For example. When i modded my mk3 cortina these were not popular enough to have lower springs off the shelf. So demon tweeks, when they used to be good, took springs from the mk5 cortina of standard length and had them cut to the required length.

The engineer there who did this even had a calculation for getting the correct ride height.

So a statment that cutting springs is unsafe is silly. not doing it properly is unsafe. This is all my stament said.

The problem is most people think, and do, just take a grinder to the spring and think that will be ok. I agree it is not.

But there is no problem with shortening springs if done propelrly.

I agree people just pick up the grinder an cut an think it will be ok when its not at least we agree on that

But I just don't see how even if its done carefully an "properly" as you say that its safe in my opinion if you take a coil or two away surely that makes it weaker? Also surely that's means it will be under much more preasure being weaker and dealing with the same weight especially when cornering?
Plus when the spring is manufactured its made to be compressed at certain rate so surely with less coils its not going to be able to cope as well?
And surely you have got to be referring to parallel springs only I really for certain cannot see it working on pigtail springs!

[snowy]

Yes spring rate will increase. But if you are doing this properly you would not be taking lots of coils off so it would never be an issue.

This does apply to all springs, but the issue with pig tail springs is they wouldn't fit if yoy started cutting coils off.

[jimmy]

Yes spring rate will increase. But if you are doing this properly you would not be taking lots of coils off so it would never be an issue.

This does apply to all springs, but the issue with pig tail springs is they wouldn't fit if yoy started cutting coils off.

So you've said that its ok to do it to and I quote "all springs" and now you're saying with pigtails they won't fit if you start cutting coils off

Which means if they won't fit they're now useless and dangerous in which case what is the point in cutting them??? None what so ever you have basically just made a point that I have been trying to make that if you cut a pig tail spring it won't fit correctly any more and if it doesn't fit correctly any more does that not make it dangerous??? It does in my books!

I'm sorry but no matter how cut them weather its "properly" or not you are making them weaker there it isn't ok to do it!

[snowy]

Cutting a spring, if done properly, does not make it weaker. I said it increases spring rate.

And as for pig tail springs, it only becomes useless as it won't fit. My point was it is safe to cut them if done properly.