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Home > Maintenance & Modifications > 2" lift, more like 2mm lift
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

United Kingdom 
Red/red is HD. Standard is brown/purple.

http://www.red90.ca/rovers/springinfo.html Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia
Post #627006 26th May 2017 1:21pm
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l3n0x



Member Since: 03 May 2017
Location: Budapest
Posts: 26

Hungary 1994 Defender 110 300 Tdi SW Chawton White
So I've already had a "lifted" Def?
Post #627007 26th May 2017 1:26pm
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

United Kingdom 
No, you've got heavy duty suspension, although that will give some lift over standard if your vehicle is particularly lightly loaded. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia
Post #627015 26th May 2017 2:02pm
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Kit



Member Since: 12 Feb 2016
Location: Shropshire
Posts: 1110

United Kingdom 1993 Defender 90 200 Tdi SW Scotia Grey
Yeah, it's about +1" over standard with no extra load... plus a horrible ride quality. 1993 200 Tdi 90 CSW
1956 Series 1 Hard-top
1958 Series 1 Soft-top
Post #627016 26th May 2017 2:24pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20376

United Kingdom 
Rubber spring isolators may also be of interest they can add around 3/4" of lift per corner per pair to a spring. $W33T $0U7H3RN $UG4R
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Post #627034 26th May 2017 3:32pm
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l3n0x



Member Since: 03 May 2017
Location: Budapest
Posts: 26

Hungary 1994 Defender 110 300 Tdi SW Chawton White
Okay, so had a race (~500km off, ~400km onroad) this weekend with the new setup. Well the rear is perfect, really perfect. But the front.. Oh boy, has it bottomed out (the shock) a hundred times so easily when hitting anything at speed, hole or bump offroad.. On the road they are fine though. Don't know how to cure this - spring spacers? heavier springs? dual shocks at front? I'm feeling that I'd need a heavier and longer front spring - maybe a 90 rear spring.


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Post #627500 29th May 2017 8:03am
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Kit



Member Since: 12 Feb 2016
Location: Shropshire
Posts: 1110

United Kingdom 1993 Defender 90 200 Tdi SW Scotia Grey
What 900KM race is this?

You can get air or regular "helper" springs which stop bottoming out: http://www.paddockspares.com/da5011-air-li...oCQOLw_wcB

You can also get much more expensive hydraulic items as well from companies like King and D44: http://gigglepin4x4.net/d44--king-complete-package-341-p.asp 1993 200 Tdi 90 CSW
1956 Series 1 Hard-top
1958 Series 1 Soft-top
Post #627521 29th May 2017 10:52am
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l3n0x



Member Since: 03 May 2017
Location: Budapest
Posts: 26

Hungary 1994 Defender 110 300 Tdi SW Chawton White
Thanks for the info! It's called the Budapest-Bratislava rally, goes mainly in Hungary, 2 days, around 50-60 participants, 90-120 geo locations / day, great fun:)
Post #627539 29th May 2017 1:16pm
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MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 2416

Chile 2007 Defender 110 Puma 2.4 SW Chawton White
For that use you probably need stiffer springs (HD OME 2" lift) and a set of king or fox shocks with adjustable compression (and rebound), so you can use also on road. Puma 110" SW

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Earth first. Other planets later
Post #627562 29th May 2017 3:44pm
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Kit



Member Since: 12 Feb 2016
Location: Shropshire
Posts: 1110

United Kingdom 1993 Defender 90 200 Tdi SW Scotia Grey
HD springs aren't designed for rallying, they're designed for heavy loads. 1993 200 Tdi 90 CSW
1956 Series 1 Hard-top
1958 Series 1 Soft-top
Post #627668 29th May 2017 11:05pm
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MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 2416

Chile 2007 Defender 110 Puma 2.4 SW Chawton White
Not sure if it is a proper rally and the 110 does not look fit for rally anyway Puma 110" SW

.............................................................
Earth first. Other planets later
Post #627672 29th May 2017 11:40pm
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l3n0x



Member Since: 03 May 2017
Location: Budapest
Posts: 26

Hungary 1994 Defender 110 300 Tdi SW Chawton White
It's not a proper rally, but it's fun, and there are some rough terrains/speeds most of the time.

Anyways, Thinking about cheap options, I might swap the TF018 front springs for TF015 front's (which is the same rating, but ~30mm longer) and go from there. The next step would be the TF23V, but that's 30mm longer and has a rating of 300-340lbs/inch, compared to the 220lbs/inch of the current (or TF015)'s rate. Don't know if that's not too much of a step - however it would be nice to get it right the first (well second time).

Also not sure if I can get away only with the longer (or longer & stiffer springs), or I also need new shocks, as the current ones still won't hold up for the "job", that is won't absorb the shock gradually, but let the spring compress until it can?
Post #627704 30th May 2017 8:35am
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Kit



Member Since: 12 Feb 2016
Location: Shropshire
Posts: 1110

United Kingdom 1993 Defender 90 200 Tdi SW Scotia Grey
Better shock absorbers or helper springs otherwise your front end will start bouncing around everywhere at speed on rough ground 1993 200 Tdi 90 CSW
1956 Series 1 Hard-top
1958 Series 1 Soft-top
Post #627706 30th May 2017 8:38am
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l3n0x



Member Since: 03 May 2017
Location: Budapest
Posts: 26

Hungary 1994 Defender 110 300 Tdi SW Chawton White
Just in theory..

Math:
Drivers side

Current spring (TF018):
230lbs/inch, 15,35"
Force needed to fully compress: 14,902N
More force needed to fully compress than the current one: 0N
In percentage: 100%

Heavy load front (TF015):
220lbs/inch, 16,93"
Force needed to fully compress: 16,565
More force needed to fully compress than the current one: 1663N
In percentage: 111%

Medium load 90 rear put to front of 110 (TF023V):
300lbs/inch, 16,53"
Force needed to fully compress: 22,059
More force needed to fully compress than the current one: 7157N
In percentage: 148%

So if I interpret it correctly, the TF015 springs needs 11% more force to fully compress, and the TF023V springs need 48% more force to compress fully than the current one installed. Well 11% sounds like it is surely not enough, while 48% seems to be overkill.. Noone seems to have a spring in the middle, yet I can't see people on forums complaining about shocks bottoming out, so I don't understand what's the matter with mine.. Can't believe others don't go fast (50km/h+) on bumpy off-road..

Ofcourse my math could be wrong, so I'm quite lost.. But don't wanna install helpers/other shocks if I can get away with choosing a better spring to the front ( I will have to do this either way, because the truck is now angled towards the front with the current setup )
Post #627729 30th May 2017 11:05am
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benniferj



Member Since: 20 Oct 2016
Location: Basingstoke
Posts: 361

United Kingdom 2003 Defender 110 Td5 XS CSW Oslo Blue
Its worth bearing in mind that the length of the spring uncompressed in some ways has little to do with its characteristic when a load is applied - a longer spring can compress easier than a short one.
Have you actually measured your sill height before and after?
I have a similar setup on my 90 and the Terrafirma certainly lifted it more than the previous springs.
In regards to your front dampers bottoming, what are they? I run +5 dampers (TF 4 stage) and had to put on +2 shock turrets as the top slider length is longer, making it bottom too early. I don't know if you have changed turrets or shocks as part of this upgrade but you may have missed another component that sorts this out.

Edit: I believe the TF springs are progressive.


Last edited by benniferj on 1st Jun 2017 10:26am. Edited 1 time in total
Post #628146 1st Jun 2017 9:22am
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