Just a question chaps..
I hear Boge are the ones to go for, however I could only find the fronts, the rear seemed to be MIA so i went for Terrafirma thinking their "pro sport" series of shockers should firm up the ride and make it less of a bouncy castle..
It is spongy but not in a comfortable way..
Any words of wisdom!
Feel free to give a bollocking LOL
Already got the tin hat on!!!!
H
It's a Range Rover, not a bloody sports car. 'Firming it up' will just make it more uncomfortable. If you got the adjustable ones, set them at their softest.
I didn't mean "firm up" in the sense of firmer than stock, I meant better than the un-settling Jelly i have now...
One of my mates in Italy, long time tinkerer on P38s, told me once most shocks past the OE Boge are too firm, which ill suits the spring damping of the EAS. I can't tell ...
I have just replied to the same question on "the other side".
I have got Terrafirma TF145/6 Pro dampers with Gen III's. The spring rate(s) on Gen III's is also different than Dunlops as well, just to complicate matters. The spring rate actually varies with the height setting. Gen III's are softer off road, harder at standard and motorway height. The piston shape varies the spring rate.
If I was in the market for dampers now I would look at TF adjustables.
However, I have just had a thought, StrangeRover, fitting +2" dampers to a car without modding the rest e.g. air bags/ brake lines/ rear sensor arms. It might cause damage when the axle drops and is over extended.
Surely extension is fine, compression would be the issue?
Compression will only go as far as the bumpstops just as it would with standard length shocks. It's extension that will cause a problem as the maximum extended length of the shocks is what limits the amount of axle movement. With longer than standard shocks it would be possible for the air springs to over-extend and pop off the end caps, stretch the brake hoses and damage the height sensors by allowing more movement than anything was designed for.
i thought it worked both ways , to much extension and not enough collapsibility , if the shock will not compress to the bump stops it will bend the shock so you have to move the stops , also it will stretch your brake lines and abs lines if extended to far. you need to find out what the measurement is at min and max extension and compare with standard.
Cheers gents.
They came today and i fitted them, a bit of a ballache but all went well..
Old ones were ruined..
New ones were the exact same length fully extended so i don't believe they're +2 shocks..
The ride is far better it no longer bounces when hitting a succession of potholes, and the knock and rock trough the steering has been eliminated..
As for comfort, it is still very comfy even on bad lanes around the farm, so it turns out they're not too bad..
Old.
New.
rear ones next.
Gilbertd wrote:
Compression will only go as far as the bumpstops just as it would with standard length shocks. It's extension that will cause a problem as the maximum extended length of the shocks is what limits the amount of axle movement. With longer than standard shocks it would be possible for the air springs to over-extend and pop off the end caps, stretch the brake hoses and damage the height sensors by allowing more movement than anything was designed for.
ahh, I was thinking about damaging the shocks by over-extending them, which wouldn't happen with longer shocks, not the springs.
mad-as wrote:
i thought it worked both ways , to much extension and not enough collapsibility , if the shock will not compress to the bump stops it will bend the shock so you have to move the stops , also it will stretch your brake lines and abs lines if extended to far. you need to find out what the measurement is at min and max extension and compare with standard.
Yes, this too! But clearly not an issue now :)
StrangeRover, Terrafirma make a wide range of shocks and there are at least 3 options for the p38 that I know of.
You should have TF145/6 from what you said. They are rated as +2".
If you compared the fronts side by side, they are similar lengths. I remember I raised my original front Boges an extra 2" with diagnostics but I lost damping at that height. It was like a bouncy castle. I ended up lowering it back down a bit to +1.5".
In fact I fitted front Boges on the rear as well and ran with fronts all round for a bit.
The rear Boge dampers however are quite a bit shorter than the front Boges. If you put a Boge rear next to a Terrafirma TF145 rear you will see the +2" difference I am sure.
The point I was making about fitting +2" shocks without other mods is that on over extension It could pull the air bag apart or damage the brake lines. I think on the front it wouldn't be a problem but on the rear the extra range would be.