Vehicle & Technical > Discovery
2" inch lift
Discotel:
RRB, You have just contradicted yourself here mate, in one post you are saying that they should be fitted as the suspension boffs would not have made them, the next you are saying lift it and see how it drives... :!: ...thats the point I WAS trying to make, lift it then see if you think you need the castor arms... :roll: ..A lot of people fit thenm as part of the initial lift and they do not always need them.
This was not meant to be a slanging match with you buddy, But seeing as I have a degree in Mechanical Engineering I know a little bit of this and that. :wink:
Terry
birdy:
I Put a 2"lift on the old 200 and handling was ok.
Then put qt's on front and back no change to handling.
Then went to a 3" lift no change to handling.
Now running it at 5" rear 4" front handling still ok
as for the panard rod i put a laser light from front to back wheels and they are about 8mm out.
And still running standard front prop!! just got spacers on both.
yet a mate fitted a 2" lift with qt's and the handling was terrible
that bad he took it all off and went for a body lift.
And disco was same year /model. :?:
How can two disco's be so different. :?:
Range Rover Blues:
--- Quote from: "Lyndsey731" ---
Range Rover Blues, how can wheels, offset and spacers effect the castor angle??
Gav
--- End quote ---
That's not what I actually said.
Castor angle produces the castor effect. The distance between where the king pin would meet the floor and where the contact patch rests on the floor is the castor or trail. Fit bigger tyres and this distance changes.
Buty you also have to consider scrub radius, the distance between the same 2 points when veiwed from the font of the car. Castor helps to reduce the force generated by the scrub when travelling forewards.
the you have to add in the effect of king pin inclination, the front end of the car rises when you add steering lock, this lifting also produces a self-centring effect.
My point was that the 3 degrees might seem small, but was nonetheless important to the original design.
As soon as you modify your truck you are into new terratory. Some people can live with a car that doesn't self centre, others can't.
At the moment we have 7 (time to sell some) Range Rovers knocking about and each one drives differently. Oh, then there's my mates as well :roll:
All are within manufacturer's tolerances, with 1 exeption. Blue is lifted with castor correction, red sat about 1 inch high because it had new springs and was vague as hell. Put wider wheels on and it was a nightmare.
Now if money were no object I would say quite easily "this is the way to go" and write you a shopping list that comes to about £800.
This is wjat my 2" lift has cost me, best guess
So the advice has to be "suck it and see". Design is a compramise, if you are prepared to compramise steering/handling for cost then fine, you get a cheap lift that handles a bit wooly.
I've got a 2" lift that handles as well as 2 tonnes with live axles is going to. Just as well given the engine I've got for it now :wink:
Range Rover Blues:
--- Quote from: "Discotel" ---I have a degree in Mechanical Engineering.
--- End quote ---
Snap.
The guy I learned about suspension from learned himself from a Mr C. Chapman :wink:
Lyndsey731:
RRB
you stated the following
Tyres, wheels particulalry make a differnece too. If you change the offset, wheels or psacers then ebven without a lift the castor angle will be wrong anyway.
I don't get it, Why?
Now I don't have a mechanical degree so be gentle and use small words mate.
I don't understand how spacers (body spacers yes, wheel spacers no)or different off-set wheels can change anything, surely these are acting at right angles to the axle and therefore have no effect?
As for bigger/smaller wheels or tyres as you have simply lifted or raised the entire vehicle and not rotated the axle as you would with a lift kit the angle itself has not changed?
Not looking for an argument mate, as I said don't have a degree just like to understand what I've done and and what effect it has on the vehicle. Is it just me that doesn't get this? If I'm being dense you have my apologies.
Gav
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