V8 guys with big tyres.... i have some questions

[shayne86]

Ok so i ended up putting some 32's on my factory 18 inch rims (275-65-18) and the car feels absolutely gutless! Is this normal?

It is high mileage at 280,000 but in good condition. Doesn't burn fluid or get hot etc etc. I knew there would be a bit of a performance drop but i was not expecting this much of a drop compared to my other set of 16's with 31's.

Can't even accelerate up the slightest incline to the point where it was becoming embarrassing. Pretty sure it even kicked back down to 2nd and hit 4000rpm for about 30 seconds which was enough barely maintain 90kmph-ish.

Has anyone else been through this or should be looking at refreshing the old motor?

Cheers everyone. https://uploads.tapatalk-cdn.com/20220214/a10dedb42e75e389623602e487aa8a59.jpg

[Tins]

Can a TD5 guy throw my 2 bob's worth in? I'm surprised. The difference is only 3.2% ( speedo diff ). It would be observable, but not hugely so. Has it also affected braking as noticeably? If not then I suggest something else could be in play.

If I may relate, I went from 34s to 38s on my already gutless OKA. The difference is definitely there, but not as bad as you are describing.

[shayne86]

Can a TD5 guy throw my 2 bob's worth in? I'm surprised. The difference is only 3.2% ( speedo diff ). It would be observable, but not hugely so. Has it also affected braking as noticeably? If not then I suggest something else could be in play.

If I may relate, I went from 34s to 38s on my already gutless OKA. The difference is definitely there, but not as bad as you are describing.Yeah braking was definately another noticeable drop. Maybe the tyres are a lot heavier than i expected and I'm just not used to it

[Slunnie]

Yeah braking was definately another noticeable drop. Maybe the tyres are a lot heavier than i expected and I'm just not used to it

I couldn't really see, but the tyre size difference isnt all that big. I was wondering if you had changed tyre patterns as that can make a pretty big difference.

[Tins]

Yeah braking was definately another noticeable drop.

It's a function of leverage, and if you are sensitive to it you can even notice it replacing worn tyres with new ones of the same type/size. 3.2% isn't much though.


Maybe the tyres are a lot heavier than i expected and I'm just not used to it

18" rims should have less tyre than 16", not more imo. Tricky one.

[Tins]

I couldn't really see, but the tyre size difference isnt all that big. I was wondering if you had changed tyre patterns as that can make a pretty big difference.

Rolling resistance, you mean? Yeah, can play a part.

[shayne86]

18" rims should have less tyre than 16", not more imo. Tricky one.

100% agree. Although when i chucked them on they were fairly weighty. They are Hancook Dynapro MT's for reference.

Maybe just a combination of old motor and heavier/larger tyres.

[Slunnie]

Rolling resistance, you mean? Yeah, can play a part.

Yep, jumping between my D2 Td5 and D1 V8, the V8 is far more sensitive to loads and that type of thing. Some tyres just drag everywhere.

[Tins]

100% agree. Although when i chucked them on they were fairly weighty. They are Hancook Dynapro MT's for reference.

Maybe just a combination of old motor and heavier/larger tyres.

The V8s can get tired. Which one is it? Maybe just some better breathing might help. I know the older 8s would wear the cam out, but I don't know if that applies to the 4.0/.6

[shayne86]

The V8s can get tired. Which one is it? Maybe just some better breathing might help. I know the older 8s would wear the cam out, but I don't know if that applies to the 4.0/.6Its an 04 facelift model with 4.0 and according to the vin its a low compression block. Roughly 280k on the clock.

[shack]

I'm no expert, but I would think that your feeling should be more in line with:

" it doesn't quite feel as zippy as before"

[Tins]

Its an 04 facelift model with 4.0 and according to the vin its a low compression block. Roughly 280k on the clock.

The V8s aren't my thing, but from what I read that's a fair innings for a 4.0 without refreshment. Blokes like Pedro might have something to say on this.

[Graeme]

Try a few extra psi in the tyres.

[PhilipA]

Has anyone else been through this or should be looking at refreshing the old motor?



It would be rare indeed for a V8 to NOT need a new camshaft and lifters at that mileage. ( the original design of the V8 By GM made the camshaft Base circle diameter very small to get a compact engine, but the loads on them are therefore greater than later V8s say with roller lifters.)
The bottom end is usually OK , but the heads will usually need a clean up and valve reseat.

One of the issues with overgearing a V8 is that to reduce Nox they are retarded at low revs so at highway speeds you have dropped out of the best torque band.

My TD5 is light years ahead of my highly modified 3.9 (for torque with Thor manifold, chip, dyno tune modded heads but stock cam) towing up a hill.
Regards PhilipA

[DeanoH]

I don't know where this 3% figure is coming from, it's more like a 10 % difference from where I'm looking.

Here's some figures from the ExplorOz wheel size calculator

Tyre Size Calculator @ ExplorOz Articles (https://www.exploroz.com/vehicle/tyres/sizecalc.aspx)

Using the standard D2 tyre size of 235/70R16 or 255/65R16 (both pretty much the same dia.) these are the results I get.
Results for tyre 255 / 65 R 16

Rolling Radius
368.95mm


Circumference
2318.18mm


Diameter
737.9mm


Wheel Cover Size
Size 005



Results for tyre 275 / 65 R 18

Rolling Radius
407.35mm


Circumference
2559.46mm


Diameter
814.7mm


Wheel Cover Size
Size 009


Differences between Wheel/Tyre 1 & 2

Rolling Radius
38.4mm


Circumference
241.28mm


Diameter
76.8mm


When your speedo reads 100km/hr you're actually at 109.43km/hr





Rolling diameter has been increased by around 3" (76.8mm) and the circumference by around 10" (241.28mm). On the ground this is a difference of 9.43% :o

No wonder the poor oldLandy V8 is doing it hard

Deano :)

[gavinwibrow]

I don't know where this 3% figure is coming from, it's more like a 10 % difference from where I'm looking.

Here's some figures from the ExplorOz wheel size calculator

Tyre Size Calculator @ ExplorOz Articles (https://www.exploroz.com/vehicle/tyres/sizecalc.aspx)

Using the standard D2 tyre size of 235/70R16 or 255/65R16 (both pretty much the same dia.) these are the results I get.
Results for tyre 255 / 65 R 16



Rolling Radius
368.95mm


Circumference
2318.18mm


Diameter
737.9mm


Wheel Cover Size
Size 005


Results for tyre 275 / 65 R 18



Rolling Radius
407.35mm


Circumference
2559.46mm


Diameter
814.7mm


Wheel Cover Size
Size 009


Differences between Wheel/Tyre 1 & 2



Rolling Radius
38.4mm


Circumference
241.28mm


Diameter
76.8mm


When your speedo reads 100km/hr you're actually at 109.43km/hr




Rolling diameter has been increased by around 3" (76.8mm) and the circumference by around 10" (241.28mm). On the ground this is a difference of 9.43% :o

No wonder the poor oldLandy V8 is doing it hard

Deano :)


Your figures are valid, but he is comparing the new biggies with 31 inch tyres on 16 inch rims, not standard D2, so bit of a halfway house issue.

[discorevy]

I knew there would be a bit of a performance drop but i was not expecting this much of a drop compared to my other set of 16's with 31's.




I don't know where this 3% figure is coming from, it's more like a 10 % difference from where I'm looking.



^^ this is where the figure came from Deano

I suspect there may be a bit of all the previous answers, generally, the difference in feel to say 265/70/16's from stock is usually acceptable ( TD5's less noticeable than the V8's ) but from there up it's pronounced on both ( comparing stock TD5 and V8 ) .
It's been very hot in Perth as well, so that will also contribute.

Edit , hah beat me to it Gavin

[shayne86]

^^ this is where the figure came from Deano

I suspect there may be a bit of all the previous answers, generally, the difference in feel to say 265/70/16's from stock is usually acceptable ( TD5's less noticeable than the V8's ) but from there up it's pronounced on both ( comparing stock TD5 and V8 ) .
It's been very hot in Perth as well, so that will also contribute.Yeah i think you are right with the heat component of this little dilemma of mine. Driving around today without the camping gear on board with a slightly lower outside temps felt a little nicer to drive. But there aren't any big hills near home to test this theory.
Maybe im just not use to old girl yet.

[ozscott]

I have a heavy D2. Lifted, sliders and steel bars front and rear. 31 inch Duratracs on 16's. Roof racks. Pulls like a steam train with a 1 tonn boat on the back up hills and did very well with a 2 tonn dual axle boat on the back too. Stock high comp 4.6 5 speed manual. My 2.4 triton has more torque when towing the same 1 tonn boat up hills but the 2.4 variable vane turbo Triton motor outguns the stock TD5 in a big way, and has a very nice Aisin 6 speeder behind it. I know that very tricked TD5's go hard too. As a matter of passing interest as to how motors have developed- stock TD5 in auto is 315nm (1950rpm) and 101kw (in Disco)(4850rpm). Stock MQ and MR Triton 2.4 MIVEC is 430nm (2500rpm...so likely more torque but certainly no less torque as TD5 at 1950 but then keeps building) and 133kw (3500rpm so nice and low too). Cheers

[discorevy]

As a matter of passing interest as to how motors have developed- stock TD5 in auto is 315nm (1950rpm) and 101kw (in Disco)(4850rpm). Stock MQ and MR Triton 2.4 MIVEC is 430nm (2500rpm...so likely more torque but certainly no less torque as TD5 at 1950 but then keeps building) and 133kw (3500rpm so nice and low too). Cheers

So 20 odd years and they've matched a mildly remapped TD5, but with Drum rear brakes and leaf suspension[biggrin].

mate has a Pajero Sport with the 8 speed, he likes it but knows that it won't keep up with a well sorted TD5 even with its 4 speed ( and he has tried )
I like the Mitsy's too, and wouldn't mind one if I was in the market for a new work ute, price and warranty hard to beat.
But then again, another mate has a VW amorok 3.0 which is convincingly quicker than the TD5, just wont last as long.
A little off topic I know

[ozscott]

So 20 odd years and they've matched a mildly remapped TD5, but with Drum rear brakes and leaf suspension[biggrin].

mate has a Pajero Sport with the 8 speed, he likes it but knows that it won't keep up with a well sorted TD5 even with its 4 speed ( and he has tried )
I like the Mitsy's too, and wouldn't mind one if I was in the market for a new work ute, price and warranty hard to beat.
But then again, another mate has a VW amorok 3.0 which is convincingly quicker than the TD5, just wont last as long.
A little off topic I knowWouldn't touch the Rock with a barge pole. Funnily enough the GLSP MR Trito has excellent brakes. Very large front discs and big rear drums. In all weather it well and truly outbrakes the D2 [emoji16][emoji106]. And that little 2.4 can reliably and safely be dyno tuned ($1500 and no physical changes required) for 33% more torque and power. The TD5 was and is a very nice diesel but can't compete for output and low noise etc with a modern jap diesel (and even less so a modern LR diesel; BMW 3.0 as in the Ineos etc). Have to have the blinkers off here. Cheers

[discorevy]

Wouldn't touch the Rock with a barge pole. Funnily enough the GLSP MR Trito has excellent brakes. Very large front discs and big rear drums. In all weather it well and truly outbrakes the D2 [emoji16][emoji106]. And that little 2.4 can reliably and safely be dyno tuned ($1500 and no physical changes required) for 33% more torque and power. The TD5 was and is a very nice diesel but can't compete for output and low noise etc with a modern jap diesel (and even less so a modern LR diesel; BMW 3.0 as in the Ineos etc). Have to have the blinkers off here. Cheers

And also funnily enough I thought you'd bite after my last comment and continue to plod down the confirmation bias path where it outguns, outbrakes etc.
No blinkers on here Scott, I did say others were convincingly quicker ( just not a triton or pajero sport) and so they should be after 20 odd years but there's a reason the little TD5 has a reputation as a tough and very tunable motor and that's simply that it is just that
The noise you mention is solely the unit injectors which really aren't that bad and I'd have them over CRD any day from a reliability perspective.
I suspect in another 20 years time there won't be many who'll remember the engine from a Triton, but I'm glad you've finally found the diesels you previously bagged on here 4 or 5 years ago to be better than you thought.
If it was all about outgunning outbraking etc I'd probably have something like a Kawasaki H2R[smilebigeye]

Apologies to O.P.

[discorevy]

Shayne, if it's a keeper then you could always swap the diff ratios to 3.9's and whack in a couple of ATB's at the same time to increase the strength and capability while bringing back some grunt if you want to run that tyre size, just a thought.

[ozscott]

And also funnily enough I thought you'd bite after my last comment and continue to plod down the confirmation bias path where it outguns, outbrakes etc.
No blinkers on here Scott, I did say others were convincingly quicker ( just not a triton or pajero sport) and so they should be after 20 odd years but there's a reason the little TD5 has a reputation as a tough and very tunable motor and that's simply that it is just that
The noise you mention is solely the unit injectors which really aren't that bad and I'd have them over CRD any day from a reliability perspective.
I suspect in another 20 years time there won't be many who'll remember the engine from a Triton, but I'm glad you've finally found the diesels you previously bagged on here 4 or 5 years ago to be better than you thought.
If it was all about outgunning outbraking etc I'd probably have something like a Kawasaki H2R, defo not a boat with wheels[smilebigeye]

Apologies to O.P.[emoji1787][emoji1787]. Why wouldn't i bite. Facts are facts. I will bite again. You may have forgotten i have owned and driven D2s since 2001 and still have a very well maintained D2. The Triton does outbrake it by a decent margin. Fact. Sorry I will go back in my box after popping out to inject some reality. And the only diesels I like are the current crop. Before then slow and noisy but I know that will upset you and others on here. To me, and i have driven them new and second hand, the fact that a stock TD5 (yes it can be made to perform but likewise modern diesels can be easily uprated) is noisy and slow compared to the modern diesels in all dual cab utes and euro diesels is unassailable but whether your passion and heart makes you prefer/love a TD5 over them, well that is another matter and one which i don't have any issue with. Between this and the dark side thread the blinkers on here sometimes are hard not to comment on. Cheers. Ps. The question of reliability of the 2.4 over modern LR diesels is another question for another thread but you know what my preference is based on my purchase.

[ozscott]

Back on point, the 4.0 at 280,000 may be getting a bit tired for 32 inch tyres and the friction and gearing it brings mate. However there are a couple of things that can make them doughy. The first that comes to mind is the mass air flow sensor. The Bosch Motronic can get very doughy and not throw a code when the MAF degrades. If it hasn't had a new genuine one for say 80,000k or so then that may work. Cleaning them is hit and miss (and sometimes wrecks them even doing the cleaning cold). But if you use CRC MAF Cleaner and it gives it a boost then a new MAF is likely in order. The other obvious thing is leads and plugs but unless you run LPG you get a good run from good quality plugs and leads typically. Check the plugs though and a set of leads is not expensive. Apart from that they are a set and forget engine management system (bad 02 sensors will cause richness and poor mileage but not less power in my experience). If those things don't help then I would recommend back to 31 inch tyres and get ready for a hard decision on a rebuild or new engine/vehicle etc mate. Another option if you can't give up your 32's is as Discovery says above re new ratios and going ATB while there. Cheers

[shayne86]

Back on point, the 4.0 at 280,000 may be getting a bit tired for 32 inch tyres and the friction and gearing it brings mate. However there are a couple of things that can make them doughy. The first that comes to mind is the mass air flow sensor. The Bosch Motronic can get very doughy and not throw a code when the MAF degrades. If it hasn't had a new genuine one for say 80,000k or so then that may work. Cleaning them is hit and miss (and sometimes wrecks them even doing the cleaning cold). But if you use CRC MAF Cleaner and it gives it a boost then a new MAF is likely in order. The other obvious thing is leads and plugs but unless you run LPG you get a good run from good quality plugs and leads typically. Check the plugs though and a set of leads is not expensive. Apart from that they are a set and forget engine management system (bad 02 sensors will cause richness and poor mileage but not less power in my experience). If those things don't help then I would recommend back to 31 inch tyres and get ready for a hard decision on a rebuild or new engine/vehicle etc mate. Another option if you can't give up your 32's is as Discovery says above re new ratios and going ATB while there. CheersYeah plugs are fairly new, haven't done leads (yet) MAF is under a year old. Mine died shortly after purchasing it and cleaning it with crc maf cleaner. Was a fun introduction to land rover ownership [emoji28]

Yeah thinking the 32's might have to go. Maybe something a little skinnier to reduce rolling resistance while im there

[ozscott]

Shayne i know you are on 18's and I am on 16's but I find the sweet spot for both my 3.9 D1 auto and 4.6 (and before that 4.0) D2 V8's (manual) is 245/75. I have used 265 in lower profile and have a mate that still runs 265 on his D2 (ie all 31 inch OD) but 245 gives plenty of grip and doesn't tram track and gives modest rolling resistance. I found the 245 with plenty of profile to be the best offroad too. Hope that assists. Cheers

[ozscott]

Further mate if you are struggling with getting the right amount of sidewall (tyre choice on 18's as a lot seem to start wide these days) when say dealing with a width of 245mm then you could grab a set of 16 inch (they come up for sale a bit) and go 75 profile. Cheers

[shayne86]

Further mate if you are struggling with getting the right amount of sidewall (tyre choice on 18's as a lot seem to start wide these days) when say dealing with a width of 245mm then you could grab a set of 16 inch (they come up for sale a bit) and go 75 profile. CheersIt won't be staying on the 18's, they were a little bit of an experiment so to speak. I much preferred the 16's i was running so will be going back.

[ozscott]

Nice. Mate sounds like you will get more life out of the old girl. I certainly am happy to admit that well looked after and once you get on top of the dowel issue and other things with the TD5 the TD5 block will typically put up higher k's than the 4.0 D2 motor (3.9 D1 is much better than the D2 for longevity albeit they lose sting above 300k...my D1 and my brothers D1 with well over 300k ran well but gradually lost poke). So once it gets high enough miles on it to make it not enjoyable/usable depending on your tolerance, a replacement would be good. Cheers

[shayne86]

Nice. Mate sounds like you will get more life out of the old girl. I certainly am happy to admit that well looked after and once you get on top of the dowel issue and other things with the TD5 the TD5 block will typically put up higher k's than the 4.0 D2 motor (3.9 D1 is much better than the D2 for longevity albeit they lose sting above 300k...my D1 and my brothers D1 with well over 300k ran well but gradually lost poke). So once it gets high enough miles on it to make it not enjoyable/usable depending on your tolerance, a replacement would be good. CheersYeah im hoping to get a few more years out of the old girl. She's in pretty good nic just albeit a little on a slow-ish side.

Think I'll put the 16's back on and find some slightly skinnier tyres to help take a bit of strain off the old v8. A snorkel is on the cards soon as well so that might help it breath a little easier as well.

Gonna be a shame, she looks so good on the big rubber [emoji28]

[V8Ian]

Yeah im hoping to get a few more years out of the old girl. She's in pretty good nic just albeit a little on a slow-ish side.

Think I'll put the 16's back on and find some slightly skinnier tyres to help take a bit of strain off the old v8. A snorkel is on the cards soon as well so that might help it breath a little easier as well.

Gonna be a shame, she looks so good on the big rubber [emoji28]
:ttiwwp:

[ChookD2]

:ttiwwp:

You're not paying attention Ian.

V8 guys with big tyres.... i have some questions (https://www.aulro.com/afvb/discovery-2-a/290065-v8-guys-big-tyres-i-have-some-questions-post3136377.html#post3136377)

[V8Ian]

You're not paying attention Ian.

V8 guys with big tyres.... i have some questions (https://www.aulro.com/afvb/discovery-2-a/290065-v8-guys-big-tyres-i-have-some-questions-post3136377.html#post3136377)
Thanks Ray, rather than attention span, it's got more to do with me forgetting where I left my rememberer. [bigsad]

[discorevy]

[emoji1787][emoji1787]. Why wouldn't i bite. Facts are facts. I will bite again. You may have forgotten i have owned and driven D2s since 2001 and still have a very well maintained D2. The Triton does outbrake it by a decent margin. Fact. Sorry I will go back in my box after popping out to inject some reality. And the only diesels I like are the current crop. Before then slow and noisy but I know that will upset you and others on here. To me, and i have driven them new and second hand, the fact that a stock TD5 (yes it can be made to perform but likewise modern diesels can be easily uprated) is noisy and slow compared to the modern diesels in all dual cab utes and euro diesels is unassailable but whether your passion and heart makes you prefer/love a TD5 over them, well that is another matter and one which i don't have any issue with. Between this and the dark side thread the blinkers on here sometimes are hard not to comment on. Cheers. Ps. The question of reliability of the 2.4 over modern LR diesels is another question for another thread but you know what my preference is based on my purchase.

Good of you to inject us all with (your) reality
Next you'll be telling us all it also out 4w drives the D2's .

Fortunately my reality involves working on not only D2's but as I live in a rural area , quite a few utes ( have to keep the locals happy ) also a couple of the BMW m57 diesels (inc wifes) you mentioned, so get to drive pretty much most of the popular utes, as well as cars on a regular basis.
I don't think any mech, who has worked for a lot of years would have blinkers on and base their experience on passion / heart etc.
But I do have a list of folk who want me to tell them when a decent D2 TD5 comes up after they drive the loaner.
Problem is no one wants to part with them.
When they ask if I know of any utes for sale they tend not to care which brand as none of them here are used in the same way that urban warriors think of them, in fact most are ****ed of that they can't get a real ute because of demand for dual cabs.
I don't think you'd let anyone forget you had a D2 Scott, or that you now have a Triton and how fantastic, better it is at everything, but when all's said and done it's just another work/play ute , designed as such etc and while its good that you love it enough to do a complete report on it, there's not much point getting frustrated when no one shares your passion.
It is a Land Rover forum.

[Keithy P38]

G’day,

I just had a quick skim through and thought I’d chuck my experience in for you mate. I know there is a difference between the P38 Rangie and the D2, albeit we are both running the mighty Thor and mine is a 4.6 high compression.

I took my P38 from 265/55/18’s up to 285/75/16’s (so 30” up to 33” in the old money). At the time I had about 230,000km on the P38. It’s now at 296,000km and as far as performance (going way back to your original post), while the size change removed a bit of poke around town, it’s never felt short of power on the open road. Even with a 1.8t trailer and 2.8t of P38 it holds 100km/h up steep climbs loaded. Fair is fair - it’ll drop back to 3rd and sit around 3,200rpm, but it doesn’t complain. Likewise if I’m running on LPG or 95 octane - it makes no difference to torque output. It pulls.

I’m not familiar with the mumbo of a 4.0, or for that matter if my stainless snorkel has altered airflow (doubtful), but that’s my input to you mate. I can’t comment on how your 4.0 is in terms of life as the others have mentioned, I can only speak from my experience. I’d hate to see you get rid of a perfectly good set of tyres if there’s something that can be done. I love the 33’s and it gets daily driven without trouble.

Cheers
Keithy

[discorevy]

test drove this one (4.0 V8 220 000k) just then , has 265/70/16's and apart from the tyre noise ( coopers ) is still quite acceptable power wise compared to stock as you probably know.
I'm sure you can sell the wheels

[shayne86]

test drove this one (4.0 V8 220 000k) just then , has 265/70/16's and apart from the tyre noise ( coopers ) is still quite acceptable power wise compared to stock as you probably know.
I'm sure you can sell the wheelsGood looking bus! But yeah those tyres are almost 2 inches smaller than what i trialled on the weekend.

[shayne86]

Is it worth noting that its an auto? Could there be something to look in the box maybe? Gear shifts are smooth but could the torque converter be letting me down?

Auto boxes aren't my forte so please excuse any dumb questions.

[trout1105]

Is it worth noting that its an auto? Could there be something to look in the box maybe? Gear shifts are smooth but could the torque converter be letting me down?

Auto boxes aren't my forte so please excuse any dumb questions.

When was the gearbox last serviced?

[shayne86]

When was the gearbox last serviced?I couldn't tell you. I changed the oil and filter when i bought it 12 months ago (only done about 5000kms since) but apart from that i couldn't tell you

[ozscott]

Good of you to inject us all with (your) reality
Next you'll be telling us all it also out 4w drives the D2's .

Fortunately my reality involves working on not only D2's but as I live in a rural area , quite a few utes ( have to keep the locals happy ) also a couple of the BMW m57 diesels (inc wifes) you mentioned, so get to drive pretty much most of the popular utes, as well as cars on a regular basis.
I don't think any mech, who has worked for a lot of years would have blinkers on and base their experience on passion / heart etc.
But I do have a list of folk who want me to tell them when a decent D2 TD5 comes up after they drive the loaner.
Problem is no one wants to part with them.
When they ask if I know of any utes for sale they tend not to care which brand as none of them here are used in the same way that urban warriors think of them, in fact most are ****ed of that they can't get a real ute because of demand for dual cabs.
I don't think you'd let anyone forget you had a D2 Scott, or that you now have a Triton and how fantastic, better it is at everything, but when all's said and done it's just another work/play ute , designed as such etc and while its good that you love it enough to do a complete report on it, there's not much point getting frustrated when no one shares your passion.
It is a Land Rover forum.

Shots fired shots fired [biggrin] Mate I must have upset you at some point...dont recall doing it but these things happen ("I dont think you'd let anyone forget you had a D2....now you have a Triton and how fantastic, better it is at everything....") [biggrin][biggrin]

No I dont think the Triton is better offroad. I think my D2 is better at most things (not all - beach) offroad and that includes outright suspension robustness. The Triton does very well offroad and does 99% of what I need but it is not my D2 (now start comparing stock height, no CDL D2 and things get tougher in terms of outright ability when comparing especially given the Triton's stock rear locker).

I am not frustated when 'no one shares your passion' - many people sharing the passion for other vehicles on this forum. It is good to be open minded.

Good to hear you have customers wanting a TD5 D2. They remain good value for money and are about a quater to a fifth the price of the most basic Thai ute so that is a big plus.

Cheers

[CaptTimbo1564]

I did a similar tyre upgrade to my L322 and didn't notice any difference in power output.I guess your problems are elsewhere in the drivetrain.


Ok so i ended up putting some 32's on my factory 18 inch rims (275-65-18) and the car feels absolutely gutless! Is this normal?

It is high mileage at 280,000 but in good condition. Doesn't burn fluid or get hot etc etc. I knew there would be a bit of a performance drop but i was not expecting this much of a drop compared to my other set of 16's with 31's.

Can't even accelerate up the slightest incline to the point where it was becoming embarrassing. Pretty sure it even kicked back down to 2nd and hit 4000rpm for about 30 seconds which was enough barely maintain 90kmph-ish.

Has anyone else been through this or should be looking at refreshing the old motor?

Cheers everyone. https://uploads.tapatalk-cdn.com/20220214/a10dedb42e75e389623602e487aa8a59.jpg

[loanrangie]

I did a similar tyre upgrade to my L322 and didn't notice any difference in power output.I guess your problems are elsewhere in the drivetrain.Completely different animal, the rover/GM V8 is a slug at the best of times and with only 4 gears the D1/2 struggle with larger tires.

[discorevy]

Shots fired shots fired [biggrin] Mate I must have upset you at some point...dont recall doing it but these things happen ("I dont think you'd let anyone forget you had a D2....now you have a Triton and how fantastic, better it is at everything....") [biggrin][biggrin]


[bighmmm]May have been a bit harsh for that one Scott , sorry.

[ozscott]

[bighmmm]May have been a bit harsh for that one Scott , sorry.All good mate and thanks. Appreciate it. Glad to have a mechanic who is into LR on the forum. Grateful for your contributions. Take care. Cheers. Oz.

[shayne86]

So a bit of an update if anyone is interested.

I ended up swapping my 32.2inch 18's back to my original 30inch(ish) 16s. Car felt noticeably better to drive.

Out of sheer curiosity i put both wheels on the scales. The 18s came in at 41.6kg and the 16s came in at 32.0kg. That was a little surprising to be honest, i assumed the difference would be less.

Now, i haven't had a chance to take a drive on the same stretch of road that prompted this thread (for any Perth crew it was the overtaking lane up a massive hill heading south towards Perth from jurien bay) but already it feels back to normal.

[Bradtot]

Hi I hate that hill...you should try it towing a 2 ton pls caravan with a headwind..my Discovery TD5 manual which has a remap from Shack struggles but does it..

[shayne86]

Hi I hate that hill...you should try it towing a 2 ton pls caravan with a headwind..my Discovery TD5 manual which has a remap from Shack struggles but does it..Yeah its a shocker.

[scarry]

Thats a huge increase in Tyre size.
My son did that to the Puma,then complained it was a slug.

Well some never learn,he has recently done it to his LC76,yes,same thing,lots of complaints its a slug,particularly off the mark.
And that thing has a huge amount of torque compared to the Puma,off the mark,and a much flatter torque curve.

[trout1105]

Yeah its a shocker.

The one endearing thing about that particular hill is that it has a pretty good view from the top of it[thumbsupbig]

Fitting oversized tyres/wheels to ANY 4WD will adversly affect its onroad performance So it's not only a landrover problem.
The secret is to fit tyres that give you good offroad capabillity without adversly affecting the overall performance of the vehicle too much.
I found that the 245/70/16 mickey thompson ATZ P3's (not sure of how many inches they are rated at) fitted to my D2a V8 gave me great offroad capabillity without compromising the onroad performance of her.

[shayne86]

The one endearing thing about that particular hill is that it has a pretty good view from the top of it[thumbsupbig]

Fitting oversized tyres/wheels to ANY 4WD will adversly affect its onroad performance So it's not only a landrover problem.
The secret is to fit tyres that give you good offroad capabillity without adversly affecting the overall performance of the vehicle too much.
I found that the 245/70/16 mickey thompson ATZ P3's (not sure of how many inches they are rated at) fitted to my D2a V8 gave me great offroad capabillity without compromising the onroad performance of her.I'll second that sentiment regarding the mickey t's. I had a set of all terrains years ago before children and marriage when i had a lot of disposable income.... best tyres ive ever had on any vehicle.

But yes your right, bigger tyres are going to be a detriment to performance, i just thought a 4L v8 wouldn't be so damn sluggish with 32's.

I'll keep that tyre size in mind for the near future when the bridgestones die.

Cheers mate

[scarry]

I found that the 245/70/16 mickey thompson ATZ P3's (not sure of how many inches they are rated at) fitted to my D2a V8 gave me great offroad capabillity without compromising the onroad performance of her.

I ran that size on all our D2's,with no issues.Its pretty close to the stock size of 235/70/16.Stock were Michelin XPC,i ran BFG A/T.

D4 i ran up size about the same % as the D2 increase,no real issues either.

[trout1105]

I only run micky Thompson ATZ P3 265/75/16 on my 79 series and it does everything g I ask of it.
I can't see the point of running massive rubber on a 4WD personally

[scarry]

I only run micky Thompson ATZ P3 265/75/16 on my 79 series and it does everything g I ask of it.
I can't see the point of running massive rubber on a 4WD personally

Seems the LC300 has gone to a narrower tyre than the LC200.
Probably to save fuel?

[trout1105]

Seems the LC300 has gone to a narrower tyre than the LC200.
Probably to save fuel?

The stock tyres fitted on most 4WD's when they leave the showroom are usually crap, the LC300 won't be any different.

[Vern]

Seems the LC300 has gone to a narrower tyre than the LC200.
Probably to save fuel?The whole car looks narrower