To lift or not to lift... - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions


Reply
 
Thread Tools
  #1  
Old September 6th, 2016, 07:32 PM
Bunyan's Avatar
Bunyan
Status: Offline
Paul B
'88 Defender 110 3.5L V8
Member
 
Join Date: Jul 2016
Location: Alexandria, VA, USA
Posts: 39
To lift or not to lift...

Rover gurus, I'm in the midst of having my '88 110 restored and am wondering if I should add a 2" lift to the Truck. I have the stock 16" boost wheels and want to run 285/75's on them to fill out the wheel wells. Do I need to run spacers with the boost wheels to fill out the wells? I have the option to pick pretty much any shock/spring combo I want.
The truck will mostly be driven on pavement (I know sacrilege) with a few trail rides and beach trips (Outerbanks/Deweybeach - East Coast).
Do I stick with Bilstein's or go with pro sport +2 Terrafirma? Or do I stick with what works on my mountain bikes and go with the Fox shocks?
I'm open to anything.
Thanks in advance for the support.




Sent from my iPad using Tapatalk
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old September 6th, 2016, 07:47 PM
Red90's Avatar
Red90
Status: Offline
John B.
1991 Defender 90, 200TDI
Site Team
 
Join Date: Sep 2003
Location: Calgary
Posts: 8,802
Registry
There is really no need to change anything unless you are offroading to a level that you find the stock clearance is too low. It sounds like that is not the case. Adding any lift will reduce the on road quality. As far as shock choice, it depends what you want from them.
__________________
Pissing people off on the "net" since 1983.

Land Rover. Turning owners into mechanics since 1948.
Reply With Quote
  #3  
Old September 6th, 2016, 08:10 PM
Bunyan's Avatar
Bunyan
Status: Offline
Paul B
'88 Defender 110 3.5L V8
Member
 
Join Date: Jul 2016
Location: Alexandria, VA, USA
Posts: 39
Stock clearance should be fine and sounds like I can run the 285's without any issues.
As for shocks, I'd be looking for mostly comfort and stability on the road. I imagine the stock shocks should be fine? Anything above and beyond would be for off-roading I suppose.


Sent from my iPad using Tapatalk
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old September 6th, 2016, 08:17 PM
Red90's Avatar
Red90
Status: Offline
John B.
1991 Defender 90, 200TDI
Site Team
 
Join Date: Sep 2003
Location: Calgary
Posts: 8,802
Registry
Comfort and stability are opposite requirements for a shock. Get it. Drive it. Then decide if there are things you would like different.
__________________
Pissing people off on the "net" since 1983.

Land Rover. Turning owners into mechanics since 1948.
Reply With Quote
  #5  
Old September 6th, 2016, 08:25 PM
Bunyan's Avatar
Bunyan
Status: Offline
Paul B
'88 Defender 110 3.5L V8
Member
 
Join Date: Jul 2016
Location: Alexandria, VA, USA
Posts: 39
Right on. Good advice. I did like the ride I had on my '06 BMW X5. Stiff and you could feel the road. Obviously these are two different beasts. I'll probably end up with whatever the shop recommends and will drive it like you said and can always change them up later.


Sent from my iPhone using Tapatalk
Reply With Quote
  #6  
Old September 6th, 2016, 09:55 PM
rlynch356's Avatar
rlynch356
Status: Offline
Robert Lynch
1995 NAS
Member
 
Join Date: Feb 2009
Location: NC
Posts: 2,079
So a thought... Blistein's are goin to ride better, TF pro +2 shocks are stiff (I have them and will be dumping them some on) and OEM is going to be the softest..
To clear the 33' 285's you will need to lift unless you don't need to turn hard. You can adjust the bump stops and all but regardless your going to rub at full lock.

IMHO .. For springs I'm using ARB now.. With a +2 lift.
Keep the sway bars and your fine
__________________
Defenders don't wear out they just need more parts.

95' D90 - daily driver..
Reply With Quote
  #7  
Old September 6th, 2016, 10:09 PM
Red90's Avatar
Red90
Status: Offline
John B.
1991 Defender 90, 200TDI
Site Team
 
Join Date: Sep 2003
Location: Calgary
Posts: 8,802
Registry
Quote:
Originally Posted by rlynch356 View Post
To clear the 33' 285's you will need to lift unless you don't need to turn hard.
Repeat after me. A spring lift does not affect tire clearance.
__________________
Pissing people off on the "net" since 1983.

Land Rover. Turning owners into mechanics since 1948.
Reply With Quote
  #8  
Old September 6th, 2016, 10:17 PM
rlynch356's Avatar
rlynch356
Status: Offline
Robert Lynch
1995 NAS
Member
 
Join Date: Feb 2009
Location: NC
Posts: 2,079
Quote:
Originally Posted by Red90 View Post
Repeat after me. A spring lift does not affect tire clearance.


Haha true... But most don't bother adjusting the bump stops and the rest of the suspension..

He is fitting a wider tire as well..

I went down in width to 255 when I went taller (33.3')
__________________
Defenders don't wear out they just need more parts.

95' D90 - daily driver..
Reply With Quote
  #9  
Old September 6th, 2016, 10:35 PM
Red90's Avatar
Red90
Status: Offline
John B.
1991 Defender 90, 200TDI
Site Team
 
Join Date: Sep 2003
Location: Calgary
Posts: 8,802
Registry
There is a problem is the Land Rover aftermarket world that nobody sells full suspension kits that address all issues and give all instructions needed. One of my pet peeves. Most people find out in the bush that their tires rub or their springs pop out or their brake line snap.
__________________
Pissing people off on the "net" since 1983.

Land Rover. Turning owners into mechanics since 1948.
Reply With Quote
  #10  
Old September 6th, 2016, 10:37 PM
rlynch356's Avatar
rlynch356
Status: Offline
Robert Lynch
1995 NAS
Member
 
Join Date: Feb 2009
Location: NC
Posts: 2,079
Very true.. You have do it all... To do it properly
__________________
Defenders don't wear out they just need more parts.

95' D90 - daily driver..
Reply With Quote
  #11  
Old September 7th, 2016, 07:16 AM
1of40's Avatar
1of40
Status: Offline
1of40
NAS 97SW & 83 One Ten Tdi
Member
 
Join Date: Dec 2003
Location: Potomac Falls & Wintergreen, Virginia
Posts: 5,661
Registry
Getting in with that set up will be trickier. Even at stock height and stock size tires there's a little jump to it but, I'm 5-9".
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #12  
Old September 7th, 2016, 08:35 AM
LRNAD90's Avatar
LRNAD90
Status: Online
Scott T
1995 Defender 90 ST
Member
 
Join Date: Dec 2003
Location: Maryland
Posts: 1,215
Registry
Quote:
Originally Posted by Bunyan View Post
Stock clearance should be fine and sounds like I can run the 285's without any issues.
Using an NAS 90 as a yardstick, 285’s will fit under a stock suspension, however..

You are going to reduce your turning radius with 285’s, as noted, but you will also rub the Front Shock tower, and maybe even the Rear Tub on compression with a 285 tire, unless you go with more backspacing, or run a spacer. It’s a width thing, not a height thing. If you want to avoid this, go 255/85-16. A lift will not change these facts..

Quote:
Originally Posted by Red90 View Post
There is really no need to change anything unless you are offroading to a level that you find the stock clearance is too low. It sounds like that is not the case. Adding any lift will reduce the on road quality. As far as shock choice, it depends what you want from them.
“Adding any lift will reduce the on road quality “ - Agreed

Sounds like this decision is a driven purely by a look you want to achieve, not a need for greater clearance or articulation.. If that is the case, I wouldn’t be afraid of a moderate lift. Maybe 1.5” (2” max). You should be able to achieve this with a number of spring combinations from different manufacturers (depending upon your bumper, winch, etc configuration). I’m partial to OME as they seem to have a proven record of manufacturing quality, but there are definitely other quality options out there..

While on-road handling will be compromised, it shouldn’t be too bad a comprise (make sure you keep your sway bars, or add them if not stock). If you stay with a moderate lift (mostly the springs will be slightly higher spring rate than stock as well)..

As far as shocks go, the new Fox offering from RN with stock mounts is an interesting option. Fox makes good stuff, but I haven’t driven them, so hard to say if the valving is right for you to be happy with them. I Ran a set of 10” travel Fox shocks from a Stage II SG kit on my old Disc (mainly street) and loved them, but don’t recall their valving (truck has been gone for 11+ years now). Again, OME seems to have a good reputation of being a better than stock option, But I’d stay away from Tereflex based on what I’ve heard others say about them (as well as Pro Comp, Rancho, Etc, Etc)..

Don’t Forget, as John (Red90) points out, lifting a truck properly (and safely) needs to be addressed as a system, not just springs and shocks. Proper brake line lengths, lowered bump stops, extended Sway bar links, as well as shock length (and/or mounting), etc, etc.. should be addresses as well, even if many don’t and get away with it..
__________________
~Scott T.
'95 D-90 ST - AA Yellow
"If you're not living on the edge, you're taking up too much space!"


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #13  
Old September 7th, 2016, 09:51 AM
Bunyan's Avatar
Bunyan
Status: Offline
Paul B
'88 Defender 110 3.5L V8
Member
 
Join Date: Jul 2016
Location: Alexandria, VA, USA
Posts: 39
To lift or not to lift...

I'm probably going to go with spacers to fill out the wheel wells a bit and give it a wider stance.
I thought 265/70's where the same hight as 285/75's? Or will the 265/70's have the same issues?


Sent from my iPhone using Tapatalk

------ Follow up post added September 7th, 2016 10:54 AM ------

I must have been looking at a different size 265. This shows a 265/70 V's 285/75
Sure does look quite a bit taller.


I must have been thinking of 285/70's.



Sent from my iPhone using Tapatalk
Reply With Quote
  #14  
Old September 7th, 2016, 10:01 AM
LRNAD90's Avatar
LRNAD90
Status: Online
Scott T
1995 Defender 90 ST
Member
 
Join Date: Dec 2003
Location: Maryland
Posts: 1,215
Registry
Quote:
Originally Posted by Bunyan View Post
I'm probably going to go with spacers to fill out the wheel wells a bit and give it a wider stance.
I thought 265/70's where the same hight as 285/75's? Or will the 265/70's have the same issues?
Well, just to make sure the point hasn’t been missed, fitting a 285/75-16 tire to a Defender causes clearance issues primarily because of its WIDTH, not its Height…

Understand how the metric tire sizing works, makes it easy to look at those sizes and see one is significantly taller..

First number (285) is the Section width (not tread width) of the Tire in mm
Second number (75) is the height of the sidewall, expressed as a percentage of the section width
And of course the final number (16) is the wheel Diameter..

So to calculate the height..

285\25.4 = section width in inches (11.22 in)
11.22 x .75 = Sidewall height ( 8.42 in)
(8.42 x 2) + 16 = Overall height, or how tall the tire is (32.83 in)
__________________
~Scott T.
'95 D-90 ST - AA Yellow
"If you're not living on the edge, you're taking up too much space!"


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #15  
Old September 7th, 2016, 10:03 AM
Bunyan's Avatar
Bunyan
Status: Offline
Paul B
'88 Defender 110 3.5L V8
Member
 
Join Date: Jul 2016
Location: Alexandria, VA, USA
Posts: 39
Right on, thx!


Sent from my iPhone using Tapatalk
Reply With Quote
  #16  
Old September 7th, 2016, 10:04 AM
Red90's Avatar
Red90
Status: Offline
John B.
1991 Defender 90, 200TDI
Site Team
 
Join Date: Sep 2003
Location: Calgary
Posts: 8,802
Registry
Quote:
Originally Posted by Bunyan View Post
I'm probably going to go with spacers to fill out the wheel wells a bit and give it a wider stance.
I thought 265/70's where the same height as 285/75's?
285 = width in mm
75 = sidewall height is 75% of the width. 0.75 * 285 = 214 mm (8.4 inches).

Height of tire 16" (rim) + 8.4" * 2 = 32.8"

265/70R16 gives 30.6" high.

A 285/75R16 is the largest tire that will fit without requiring trimming. They do actually rub a bit on the flares and will touch the wheel box at full stuff regardless of backspacing, but it does not usually cause trouble and most people do no mods to stop the rubbing.

I still say drive it stock for a bit. That way when you change things you know if you like the change or not. This is important especially if you have no experience driving a Defender.
__________________
Pissing people off on the "net" since 1983.

Land Rover. Turning owners into mechanics since 1948.
Reply With Quote
  #17  
Old September 7th, 2016, 10:09 AM
slorocco
Status: Offline
Dan Prasada-Rao
1963, 109 Station Wagon
Member
 
Join Date: Oct 2004
Location: Great Mills, MD, USA
Posts: 845
Just remember, there's no substitute for checking the manufacturers website for their tire specs. The tire size is a "nominal" size and there is a fair bit of variance of true size. True size on the rim will also vary slightly depending on rim width.
Reply With Quote
  #18  
Old September 7th, 2016, 10:20 AM
Bunyan's Avatar
Bunyan
Status: Offline
Paul B
'88 Defender 110 3.5L V8
Member
 
Join Date: Jul 2016
Location: Alexandria, VA, USA
Posts: 39
Awesome, great info guys. I really appreciate it.
I catch myself getting a little carried away at times on deciding how I want to restore my Rover. It must be that Defender bug that's going around, I just look at it and I pick it up.
It doesn't help that I just got my Defender pörn magazine from Roversnorth...
Thanks again for all the advice.


Sent from my iPhone using Tapatalk
Reply With Quote
  #19  
Old September 7th, 2016, 10:47 AM
down_shift's Avatar
down_shift
Status: Offline
Russell
94' D90 ST & 06' LR3
Member
 
Join Date: Sep 2011
Location: Leesburg, VA
Posts: 4,036
Registry
What do you have under the hood? Something anemic like the 12J? Bigger tires result in taller overall driveline gearing and additional rotating mass. Both noticeable and adverse changes when driving.
Reply With Quote
  #20  
Old September 7th, 2016, 10:50 AM
Bunyan's Avatar
Bunyan
Status: Offline
Paul B
'88 Defender 110 3.5L V8
Member
 
Join Date: Jul 2016
Location: Alexandria, VA, USA
Posts: 39
Haha, no just a 3.5L V8.



Sent from my iPhone using Tapatalk
Reply With Quote
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
To Castor Correct or not for 3" lift Scooby Doo Defender Technical Discussions 5 December 19th, 2015 05:01 PM
High Lift Spare tire bracket not Safari Gard ron For Sale - Parts 11 September 29th, 2015 08:10 PM
Not mine, two post lift in RI NPT90 Misc. Chit-Chat 4 June 9th, 2014 09:50 PM
So how is this possibly legal...not that it is not awesome wcampbel@nas.edu Misc. Chit-Chat 22 January 30th, 2009 06:35 PM
Not sure if this is a repost or not. 130 for sale. Quimbola Misc. Chit-Chat 1 January 29th, 2008 05:54 PM


All times are GMT -5. The time now is 07:35 AM.


Copyright