265x75x16 on D1 mags and a planned 2" spring lift on a 98 D1 300tdi Auto. Will it wor

[wedgetail37]

Hi again guys.[thumbsupbig]


265x75x16 (31.64 inch) on D1 Landrover mags and a planned 2" spring lift on a 98 D1 300tdi Auto. Will it work or do I have to do a body lift??

I would appreciate any of you guys experience on this matter

Thanks - Gerry:rocket:

[discomatt69]

Depends on wheel off set, I have always run 235/85 on my D1, slightly taller, 32 inch, 2 inch spring lift, no body lift ( illegal in all states) and a slight camel cut.

A tall skinny tire works better than a wider tyre IMO

[edddo]

Will you keep standard diff, transmission ratios?
It will be quite sluggish on the hwy, and low low will be too high for steep descents if not.

[deadfishdisco]

hi gerry,
I have a 96 disco auto tdi with 2" lift and 245 x 75 tyres , which I reckon is the ducks innards....gearing is ok, you are welcome to try mine if you wish....(PM me) I am nearby in the sunny part of the south-west...
a small camel cut was required....

robbo

[wedgetail37]

Depends on wheel off set, I have always run 235/85 on my D1, slightly taller, 32 inch, 2 inch spring lift, no body lift ( illegal in all states) and a slight camel cut.

A tall skinny tire works better than a wider tyre IMO


Hi Discomatt69[biggrin]

I hope I am not badly informed, but being in WA involves almost all sand driving and it seems wider tyres are the way to go to keep on top of the sand. I guess there is always a trade off in some area, so thats why I am asking what other people think and what works for them. Are you mostly sand driving or are you over East with mud and rocks and occasional sand? Also, how is your driving affected by bigger wheels on the road and off road? I have bought a 2 inch King Spring lift kit and am awaiting delivery. How did the 2 inch lift work for you and what brand did you buy and recommend? I hope I am not giving you typing cramps to answer, but if you do, then ........thanks mate.
See ya - Gerry:banana:

[wedgetail37]

Will you keep standard diff, transmission ratios?
It will be quite sluggish on the hwy, and low low will be too high for steep descents if not.

Hi Edddo[thumbsupbig]

I will not be changing diffs or gearbox. Can you give me more info about how sluggish and how 'low low' will be affected. Thanks mate and have a beaut day. See ya - Gerry:banana:

[wedgetail37]

hi gerry,
I have a 96 disco auto tdi with 2" lift and 245 x 75 tyres , which I reckon is the ducks innards....gearing is ok, you are welcome to try mine if you wish....(PM me) I am nearby in the sunny part of the south-west...
a small camel cut was required....

robbo

Hi Robbo.[biggrin]

Thank you for the info. I have ordered a 2" King spring lift and am waiting for delivery. Which spring kit are you using and whats your opinion of it?
So, the 245x75 (29.5") works for you and does not really affect the gearing? Thats good. I am in Albany WA and as you know this is a sandy place. Have you tried the track down and up to Dingo Beach and Bornholm Beach (Lowlands). If so, how did you go and did you have that tyre and suspension setup. I did the Dingo Beach Track in Winter and it was not too bad, but in summer it was a different kettle of fish. It was not easy in a stock standard sand surfing Landrover (complete with sand boards side steps) hahahaha. I am working on that problem!! I am going to give Bornholm a bash after I have my lift and better tyres. I know I will succeed (I own a Land Rover), but its just a matter of how much effort will be needed. Have a good day/night.
See ya around the area. (maybe you can pull me out from Bornholm hahahahaha):banana:

Ps. I will pm you when I am on the road again with my improved D1. Maybe we can do a trip together. We have 3 Discovery's + 1 coming, 2 Pajeros and 1 colorado on our day trips. We have Diesel (300tdi td5 DMax Pajero diesel) + 1 petrol Pajero (he cops heaps hahaha)

[DiscoMick]

We had a D1 with a 50mm lift. I found that 245/70/16s would fit without needing to cut the arches to avoid rubbing, but 245/75/16s would rub and needed the guards cut. Hope that helps.
On the sand issue, a wider tyre doesn't seem to float more, as people assume.
A wider tyre means a wider pile of sand builds up in front of the tyre, increasing resistance to forward progress.
I once thought wider was better, but now I think taller and narrower is the way to go.
Very happy with the 235/85/16s on my Defender, but they won't fit a D1.

[edddo]

Hi Edddo[thumbsupbig]

I will not be changing diffs or gearbox. Can you give me more info about how sluggish and how 'low low' will be affected. Thanks mate and have a beaut day. See ya - Gerry:banana:

I run 31's. On steep descents I notice the decreased engine braking which is not good. It is manageable but I would not go to 32's on std gearing as I think this could become unsafe - too much reliance on brakes.
On the hwy a tweaked 300tdi can manage quite ok on 31's ( same rolling dia as 245/75 16's) but again..in undulating country or towing I think 32's would make it too high and speed would be bleeding off very quickly uphill and into headwinds etc. Not fun. Just poking around in sand and not using it as a tourer it would probably be bearable?

[discomatt69]

Tyre size is not an issue for me with the V8, which is not standard, will be a different experience with a diesel (maybe I am not a D1 diesel expert)

People often assume a wider tyre is better in sand, that is actually the opposite in reality. It is the length of the tyre that is gained when deflated that gives the advantage not width.

When in soft sand the front of the tyre pushes a "wave" of sand along as you drive which increases resistance to forward momentum, the wider the tyre the wider the wave the more resistance created.

From my experience a narrow tyre works better in all situations except very soft and very deep snow, not really a issue in WA

[discomatt69]

A tip for down hill braking, turn on every electrical item, lights on high beam, fan on high, demister and air cond. this will load up the alternator and engine and improve down hill run away.
I have done hundreds of trips through the VHC with 32's with standard gearing. I always look for the " interesting" tracks and challenging lines and never had issue with steep decent, yes I do have to apply some gentle braking but learn where and how much and there is no problem

[edddo]

The 4.6 might hold a bit better than the 300tdi.
But that is the second time I’ve had that advice this year and never heard it before.
Will try that next time I’m bush.

[Discovery-94]

I run 265-75-16 on my 300tdi and have done so for last 9 years....

works for me, it is indeed a bit sluggish maybe, but mine is manual, so you learn to compensate a bit for it.
standard gearing and diffs.

negative, if you like, is full lock - need to practise your 17 point turns in carparks ;) as the width of the tire rubs on your radius arms.. I only adjusted mine last year (little full-lock screw (not sure of correct terminology here ;), stops the rubbing, but won't give you a better turning circle.

also probably using slightly more fuel I guess - running a diesel/gas system, so that helps the sluggishness and the fuel economy a bit.
and you will need to cut your arches, otherwise you will chafe on articulation.
I never used spacers or anything, just 2" lift and cut the arches.

I briefly owned a 300tdi auto with standard wheels, and I noticed it ran a bit quieter on the highways not only tire noise, also less revs - I might sit at close to 3000 at 100km/h, standard tires sat on 2500 or so...

Good luck, enjoy and have fun!

[deadfishdisco]

hi gerry,

low air pressure solves most sand issues...245x 75 on my auto works well...I have 265x75 on my manual disco (also 300 tdi) and that seems fine...my old 76 rangie was far better on sand....v8 power no doubt...standard tyres, no probs at all (pay for it at the pump though)

my auto remains set up for desert runs with cooper st max all round. unfortunately my manual disco is now un-licenced...me now getting old and like the ease of auto...my 2" lift is king springs (probably closer to 40mm) with bilsteins all round sourced from Smiths in albany...

regards robbo

[wedgetail37]

I have just spent an hour or more thanking you guys for your great help (maybe longer). But, because I started this thread earlier (3-4 hours ago) and I left it "on hold' it stuffed up for me and wouldnt load to the Forum. Then it decided to totally **** itself. I am not very happy as I spent a lot of time thanking you guys and putting my theory forward about wide vs not so wide tyres. I also decided that after a lot of deliberation I will go with 245 75R x 16 tyres. ok, see ya guys, I am old and tired and in need of copious amounts of beauty sleep. I mean massive amounts.


Bye for now - Gerry[biggrin]:thumbsup:

[trout1105]

I have a set of Yokohama 245/70/16 AT's fitted at the moment and have No problems even on the soft fluffy sand that the WA beaches are infamous for.
I will be heading up North for 6-12 months where I will encounter some black soil country, rocks and gravelly/muddy bush boat ramps` and as I have upgraded my boat from a 12' tinny to a 5.4M Trailcraft boat which is significantly heavier I an thinking of fitting a set of MT tyres.
The new Yokohama Geolandar M/T G003 tyres look the goods But I can't get them in 245/70/16, 245/75/16 is the closest I can get.

At just under $400 per tyre I hope these are not too tall for my standard height D2a as I will need 6 of them (4 on the truck + 2 spares) and it will be an expensive exercise if they don't work out.
The 245/75/16 MT tyres are rated at 1,400kg where the 245/70/16 tyres I have fitted are rated at 1,090kg.
The upside is that IF I buy 6 of these tyres I will get another 2 tyres free because of their buy 3 and got one free promotion.

Has anyone got these tyres or other 245/75/16 MT's fitted?
If so is there any drawbacks with the taller tyre fitted?

[AK83]

....

If so is there any drawbacks with the taller tyre fitted?



other than the speedo being out by a larger margin .. not really!
Brother has 245/75's (BFG KO2)on his D2(TD5, chipped) and it drives really well.
I have Yoko G012's on my D1(255/70's) and his KO2's are quieter.
Don't really know if this is due to the taller aspect ratio or just the tread pattern.

I've had (semi)mud tyres on my RRC a long time ago in the form of Pirellis.
Not as good on sand, more so soft fluffy sand. Not really bad, but a lot more work.
My experience with those tyres and my subsequent yoko geolanders(can't remember which models they were tho .. back in the late 90's) on sand out in the mallee desert areas, the yokos didn't need lower tyre pressures where the pirelli semi muds did.

Pirelli tyres were the old(no longer stocked) FD44's with a brick like pattern.
Not full muds, but 'muddier muds' than the AT geolander's were that replaced them.(same width and aspect ratios).

The only gotcha you'd want to double check if you do fit 245/75's is the front steering lock clearances at full lock.
Make sure they don't bind on the chassis or inner guard(I don't think they will on a D2, but you never know). If they do, tweak the lock stop a smidge to eliminate that. easy to do, but you'd get the tyre fitting place to do it for' ya.

my plan for new tyres when my Yokos wear out is to also go with 245/75s too. Just not sure which brand/model yet.
At the moment I'm swaying between the KO2's and the Duratracs.

[Fausto79]

Have ko2 245/75 on mine. Noticed a bit of difference with taking off but not nothing a pump tweak can’t fix. Hwy is nicer in terms or revs n fuel but makes it a bit slower at overtaking which you shouldn’t do in a d1 anyway unless you are on 90 mile straight.

The main thing I noticed is that breaking wasn’t as good. Not sure why. It almost caught me by surprise first time. Now I’m used to it but will soon upgrade brakes.

Generally i like the 245/75 much better. Once i get a ic n turbo upgrade it should be better than before.

How do you find your king springs? Are they the progressive springs?

[Robmacca]

This is where I reckon running a Defender Transfer Case would be great if u are still wanting to run tyre size of 235/85/16 or bigger. From my calc's it would be equal to, if not better with the 1.4 Def TC than if u were running the standard tyre size. Towing would be better too, but one of the down sides is when in high/steep country and the lack of engine braking when compared to std tyre size...

[wedgetail37]

Have ko2 245/75 on mine. Noticed a bit of difference with taking off but not nothing a pump tweak can’t fix. Hwy is nicer in terms or revs n fuel but makes it a bit slower at overtaking which you shouldn’t do in a d1 anyway unless you are on 90 mile straight.

The main thing I noticed is that breaking wasn’t as good. Not sure why. It almost caught me by surprise first time. Now I’m used to it but will soon upgrade brakes.

Generally i like the 245/75 much better. Once i get a ic n turbo upgrade it should be better than before.

How do you find your king springs? Are they the progressive springs?

:bat:I am still in the process of fitting but yes Val, the rear are progressive and the front are standard. :bangin: <<< me getting my head fixed.

[Grizzly]

I was out on the weekend in my D1 300Tdi with 265/75R16's at Toolangi. No rubbing after a small camel cut and steering stop adjustment.

As above I now have a larger turning circle.

Car is quite sluggish on the road but then the original one was too anyway (0-100km/h in 17 secs!). Didn't buy it so I could beat people off the lights.

I found the tyres rubbed on the front trailing arms when turning full lock so I adjusted the steering stops and found this cured it. Need to buy longer bolts so that the end of the bolts could still fix the brake disc cover.

I found on steepish hills, first gear low range was perfect for controlling speed down hill. I'm only new to this though so in the dry, may see steeper hills eventually and find that it's not low enough. Up hill, again I found first gear low range to be excellent for climbing but mostly too slow. I found second better.

My two cents.

[wedgetail37]

Will you keep standard diff, transmission ratios?
It will be quite sluggish on the hwy, and low low will be too high for steep descents if not.

Yes Eddo, I will keep standard diffs and transmisson parts.:thumbsup:

[wedgetail37]

:arms::bangin::banana:Thank you all again.

I am in the final stages.Testing this weekend at Bornholm (South Coast WA near Albany).
I have given all the above info a good thrashing. The 2" lift King springs are performing great. I must have had very saggy original springs as the Beast actually lifted 3.5" from the pre-lift height. I thought it might settle down to 2" after a 4x4 bashing, but it has not. About another diff to ground inch will be gained from the tyres giving me about 4.5 " (114.3mm) total sill to floor lift without any body lift. It worked out very well and looks a heap better. After lots of reading and listening to you guys I will be fitting 245x75x16 tyres on friday. I will post the costs including the wheel alignment on here. The cost of the spring kit was $620 including freight. The fitting was absolutely easy as my son did it for me hahahaha. But seriously, it was not difficult at all. I bought a spring compressor off Ebay for about $40.00.

Stay tuned to this thread. One more post to come detailing tyre costs and performance if I get off Bornholm Beach this year.
Have a great day - Gerry:MileStone: