So how do I increase my tyre size without reducing articulation?

**isuzurover** · 15th October 2008, 03:10 PM

Originally Posted by black betty

OK, so now I'm really confused.

I thought that if you have longer shocks you get less compression - because the body of the shock is longer so it hits it's internal stops sooner.

Longer shocks will usually have a greater distance between compressed length and extended length. They will usually have a greater compressed length.

That doesn't mean you get less compression, if the suspension is correctly designed. If your suspension is bottoming out shock absorbers you will likely kill them very quickly. When you fit longer shocks, you usually fit modified shock mounts or extended bump stops, as it is the BUMP STOPS which should limit compressive travel - NOT the shocks.

r.over · 15th October 2008, 04:53 PM

Originally Posted by mcrover

You can get softer springs than you currently have and still get a 2" lift

I am very interested in this. Please supply the brand and model of spring that allows this.

Originally Posted by mcrover

The shocks will then be your only limiting factor.

Can you explain this further

Originally Posted by mcrover

You will be able to run 32" (maybe 33" depending on offset) tyres with a 2" lift and a camel cut (trimming the rear guards) without any effect on articulation unless you go for rock hard springs but this is something you can pick and choose when you buy your springs.

Now I am really confused. You indicate that a 2 inch spring lift does not affect articulation. If it does not restrict upward movement, how does it stop the tyres hitting the guards.

Originally Posted by mcrover

Body lift will lift the body so you get more clearence between tyre and top of inner guard but again, unless your going to run 37" tyres......theres no point.

Can you explain this further.

**PAT303** · 15th October 2008, 06:32 PM

The very hard thing about this is everyone is right!!,confused,that's why race teams have suspension tech's.All off the shelf 2'' lift kits have springs that are the same length as the originals,ARB,TJM etc,they get the lift by the spring not compressing as much so the vehicle sits higher,stiffer springs,less wheel travel,buy a troopy.With shocks and springs they both must work so that the suspension doesn't dead head on the shock in compression and not bottom out in extension,in plain english the shock must have more travel than the spring. Lastly as Mcrover said if you have sway bars it is a waste of money as thier job is to limit axle movement. Pat

**Slunnie** · 15th October 2008, 06:40 PM

Originally Posted by PAT303

The very hard thing about this is everyone is right!!,confused,that's why race teams have suspension tech's.All off the shelf 2'' lift kits have springs that are the same length as the originals,ARB,TJM etc,they get the lift by the spring not compressing as much so the vehicle sits higher,stiffer springs,less wheel travel,buy a troopy.With shocks and springs they both must work so that the suspension doesn't dead head on the shock in compression and not bottom out in extension,in plain english the shock must have more travel than the spring. Lastly as Mcrover said if you have sway bars it is a waste of money as thier job is to limit axle movement. Pat

The one exception to all of these off the rack springs is probably the LRA springs which are about the only ones that are not necessarily stiffer than OE.

But to destroy the premise of this whole thread.... with just about any regular 2" lift the range of suspension travel remains basically unchanged from standard. What this means, is that if you can make your tyres rub with standard suspension, then you will also be able to make them rub with a 2" lift. Its only the static ride height that changes.

**rick130** · 15th October 2008, 06:46 PM

Originally Posted by r.over

I am very interested in this. Please supply the brand and model of spring that allows this.

custom rates, (any springmaker will wind to your specs) or Rangie Spares/Les Richmond Automotive have off the shelf rates that can do this too.

Do a search, springs, lengths, rates, shock lengths have been discussed ad nauseum on here.

<edit> and just one more time, JB;'s excellent spring page

land rover spring specifications

**Slunnie** · 15th October 2008, 06:52 PM

Coil Springs

**discowhite** · 15th October 2008, 07:04 PM

Originally Posted by mcrover

You can get softer springs than you currently have and still get a 2" lift
I am very interested in this. Please supply the brand and model of spring that allows this.

custom coils! my 90's springs are 3.5'' taller than standard and only 8-10lb stiffer in rate.

the key to articulation is ballance. theres way more to it than just banging in a set of springs and shocks.

most of the ''off'' the shelf kits arnt worth a piece of poo. you need to know what you want to do/acheive.

FWIW the standard LR coil spring rates are very good they just need to be taller

cheers phil

cheers phil

mcrover · 15th October 2008, 07:05 PM

Originally Posted by r.over

Quote:
Originally Posted by mcrover
You can get softer springs than you currently have and still get a 2" lift

I am very interested in this. Please supply the brand and model of spring that allows this. As said, most spring manufacturers will supply springs at different rates and lengths

Quote:
Originally Posted by mcrover
The shocks will then be your only limiting factor.

Can you explain this further Upward travel will always be limited by either bump stops, hitting body work, sway bars or spring compression, downward travel can be limited by shock length or sway bars or maybe in extreme cases catch cables

Quote:
Originally Posted by mcrover
You will be able to run 32" (maybe 33" depending on offset) tyres with a 2" lift and a camel cut (trimming the rear guards) without any effect on articulation unless you go for rock hard springs but this is something you can pick and choose when you buy your springs.

Now I am really confused. You indicate that a 2 inch spring lift does not affect articulation. If it does not restrict upward movement, how does it stop the tyres hitting the guards. I said 32" on standard steel rims dont actually touch the inner guard with sway bar disconnected but 33" will rub the inner guard on full compression on full articulation.

If you fit offset rims and fit flares then you wont hit anything up to maybe 35" without a lift

Quote:
Originally Posted by mcrover
Body lift will lift the body so you get more clearence between tyre and top of inner guard but again, unless your going to run 37" tyres......theres no point.

Can you explain this further. Ok, a body lift will lift the top of the arches but wont change where the inner guards are so tall tyres will still hit with standard off set rims.

.

I hope that covers it for you.

r.over · 15th October 2008, 09:51 PM

Originally Posted by rick130

custom rates, (any springmaker will wind to your specs) or Rangie Spares/Les Richmond Automotive have off the shelf rates that can do this too.

Do a search, springs, lengths, rates, shock lengths have been discussed ad nauseum on here.

<edit> and just one more time, JB;'s excellent spring page

land rover spring specifications

I must be missing something as I cannot find any of the springs you listed that are 2 inches longer with the same compression rate.

Can you point me to the ones that do.

r.over · 15th October 2008, 10:00 PM

Originally Posted by Slunnie

Coil Springs

You notice that the longest springs they do are also some of the heavier springs they do. This is to do with the way springs will bow outwards when compressed. The stronger the wire, the less they will bend outwards and therefore you can use a slightly longer spring. This was noticed in early attempts to do spring lifts in Rangies. They found that the springs would pop out sideways if you made them too long and light.

This is why an off the shelf spring lift will always consist of a stiffer spring supplemented partially by an increase in length. You would need to be careful with making a light spring too long.

Thread: So how do I increase my tyre size without reducing articulation?

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