Tyre Pressures for BFGOODRICH

Hiya all,

I have just bought six new tyres BF GOODRICH 235/85 R16 They are All Terrain
T\A. They were not cheap and I think my poor credit card nearly melted.
Anyway the garage have inflated them all to 28 psi.

The vehicle is Defender 110 CSW 2.5TDI, 1991 UK Specification.

I will be carrying a lot of weight at the back and have upgraded to heavy
duty springs and shockers.

What PSI should I inflate the front and back to? Main driving is on tarmac
and ocassionally sand and dirt roads. Sometimes deep sand (I suspect I
will need to deflate the tyres for this).

Happy New Year

Andy

Andrew Renshaw wrote:
> Hiya all,
>
> I have just bought six new tyres BF GOODRICH 235/85 R16 They are All
> Terrain T\A. They were not cheap and I think my poor credit card
> nearly melted. Anyway the garage have inflated them all to 28 psi.
>
> The vehicle is Defender 110 CSW 2.5TDI, 1991 UK Specification.
>
> I will be carrying a lot of weight at the back and have upgraded to
> heavy duty springs and shockers.
>
> What PSI should I inflate the front and back to? Main driving is on
> tarmac and ocassionally sand and dirt roads. Sometimes deep sand (I
> suspect I will need to deflate the tyres for this).
>
> Happy New Year
>
> Andy

6? 4x6 or 6x6?

--
"He who says it cannot be done should not interrupt her doing it."

If at first you don't succeed,
maybe skydiving's not for you!

Hiya,

No it is normal four wheels. I have two spares.

Andy

"JacobH" <[email protected]> wrote in message
news:[email protected]...
> Andrew Renshaw wrote:
>> Hiya all,
>>
>> I have just bought six new tyres BF GOODRICH 235/85 R16 They are All
>> Terrain T\A. They were not cheap and I think my poor credit card
>> nearly melted. Anyway the garage have inflated them all to 28 psi.
>>
>> The vehicle is Defender 110 CSW 2.5TDI, 1991 UK Specification.
>>
>> I will be carrying a lot of weight at the back and have upgraded to
>> heavy duty springs and shockers.
>>
>> What PSI should I inflate the front and back to? Main driving is on
>> tarmac and ocassionally sand and dirt roads. Sometimes deep sand (I
>> suspect I will need to deflate the tyres for this).
>>
>> Happy New Year
>>
>> Andy
>
> 6? 4x6 or 6x6?
>
> --
> "He who says it cannot be done should not interrupt her doing it."
>
> If at first you don't succeed,
> maybe skydiving's not for you!
>
>

I run these BF GOODRICH 235/85 R16 AT on a Defender 90.

They do look too soft at 28psi! I use 30psi on front and 35psi on rear. If I
am towing then I boost the rears up to 38psi.

This seems to work for me, but Landrover say you must follow the
instructions in the handbook re tyre size and pressure!

No doubt there are insurance implications

Ivor

"Andrew Renshaw" <[email protected]> wrote in message
news:[email protected]...
> Hiya all,
>
> I have just bought six new tyres BF GOODRICH 235/85 R16 They are All
> Terrain T\A. They were not cheap and I think my poor credit card nearly
> melted. Anyway the garage have inflated them all to 28 psi.
>
> The vehicle is Defender 110 CSW 2.5TDI, 1991 UK Specification.
>
> I will be carrying a lot of weight at the back and have upgraded to heavy
> duty springs and shockers.
>
> What PSI should I inflate the front and back to? Main driving is on tarmac
> and ocassionally sand and dirt roads. Sometimes deep sand (I suspect I
> will need to deflate the tyres for this).
>
> Happy New Year
>
> Andy
>
>
>

Ivor Tightbeat <[email protected]> wrote:

> ...
> Landrover say you must follow the
> instructions in the handbook

LOL - what's a handbook?

--
William Tasso

110 V8 (white)

On or around Wed, 28 Dec 2005 12:56:49 GMT, "Andrew Renshaw"
<[email protected]> enlightened us thusly:

>Hiya all,
>
>I have just bought six new tyres BF GOODRICH 235/85 R16 They are All Terrain
>T\A. They were not cheap and I think my poor credit card nearly melted.
>Anyway the garage have inflated them all to 28 psi.

bunch of w*nkers.

I'd go with 36 front and probably 40 or 42 rear, for road use, depending on
weight carried. Running light, you'd want about 34 all round, I expect.

Note that the book probably tells you 28 for the front. It does that for
the disco. The disco has a reputation for edging front tyres. On mine, the
last set of tyres I ran from new to worn-out on the disco were run at 36
front (235/70R16) and they wore flat and even down to almost minimum legal
tread when I replaced 'em, and they weren't rotated with the rears, either.

The only downside I can see from running higher front pressure is that the
ride is slightly harder. I wish I'd taken pictures of that set of tyres
now... the wear pattern was as near to spot-on as you'd get on front wheels
that steer and drive and brake.

>The vehicle is Defender 110 CSW 2.5TDI, 1991 UK Specification.
>
>I will be carrying a lot of weight at the back and have upgraded to heavy
>duty springs and shockers.
>
>What PSI should I inflate the front and back to? Main driving is on tarmac
>and ocassionally sand and dirt roads. Sometimes deep sand (I suspect I
>will need to deflate the tyres for this).

soft sand, you want flotation, so yes, lower pressures and keep the speed
down. Same goes for any soft stuff, really.


--
Austin Shackles. www.ddol-las.net my opinions are just that
Blue: The sky is blue for a reason. Blue light is a source of strength
and harmony in the cosmos. Create a blue light in your life by
telephoning the police
from the Little Book of Complete B***ocks by Alistair Beaton.

....and Austin Shackles spake unto the tribes of Usenet, saying...

> and keep the
> speed down.

Austin, that's not like you...

--
Rich
==============================
Disco 300 Tdi auto
S2a 88" SW
Tiggrr (V8 trialler)

On or around Thu, 29 Dec 2005 10:21:58 -0000, "Richard Brookman"
<[email protected]> enlightened us thusly:

>...and Austin Shackles spake unto the tribes of Usenet, saying...
>
>> and keep the
>> speed down.
>
>Austin, that's not like you...

moi?

Mind, the minibus goes faster with my new ram-air inlet in place. Made from
a £1.74 funnel, a bit of spare heater ducting and a certain amount of
insulting tape to hold it all together.
--
Austin Shackles. www.ddol-las.net my opinions are just that
"You praise the firm restraint with which they write -_
I'm with you there, of course: They use the snaffle and the bit
alright, but where's the bloody horse? - Roy Campbell (1902-1957)

"Andrew Renshaw" <[email protected]> wrote in message
news:[email protected]...
> Hiya all,
>
> I have just bought six new tyres BF GOODRICH 235/85 R16 They are All
Terrain
> T\A. They were not cheap and I think my poor credit card nearly melted.
> Anyway the garage have inflated them all to 28 psi.
>
> The vehicle is Defender 110 CSW 2.5TDI, 1991 UK Specification.
>
> I will be carrying a lot of weight at the back and have upgraded to heavy
> duty springs and shockers.
>
> What PSI should I inflate the front and back to? Main driving is on tarmac
> and ocassionally sand and dirt roads. Sometimes deep sand (I suspect I
> will need to deflate the tyres for this).
>
> Happy New Year
>
> Andy
>
>

Had mine since new ( 110 csw 1997 ) on BF as yours and after searching
around have run mine on 28/ 35 light load and 35/ 40 heavy load ever
since. No uneven wear and lasted about 65k miles

....and Austin Shackles spake unto the tribes of Usenet, saying...


> On or around Thu, 29 Dec 2005 10:21:58 -0000, "Richard Brookman"
> <[email protected]> enlightened us thusly:
>
>> ...and Austin Shackles spake unto the tribes of Usenet, saying...
>>
>>> and keep the
>>> speed down.
>>
>> Austin, that's not like you...
>
> moi?
>
> Mind, the minibus goes faster with my new ram-air inlet in place.
> Made from a £1.74 funnel, a bit of spare heater ducting and a certain
> amount of insulting tape to hold it all together.

You haven't forgotten to put RAM AIR SYSTEM on the sides in large italic
caps, have you?

After all, there's no point unless everyone knows.

Like those open-topped cars with CABRIOLET written on the sides in foot-high
pink cursive script. Oh really? Thanks for letting me know. I should have
guessed. The black cloth roof ought to have been a clue.


--
Rich
==============================
Disco 300 Tdi auto
S2a 88" SW
Tiggrr (V8 trialler)

On or around Thu, 29 Dec 2005 16:06:32 -0000, "Richard Brookman"
<[email protected]> enlightened us thusly:

>...and Austin Shackles spake unto the tribes of Usenet, saying...
>
>>
>> Mind, the minibus goes faster with my new ram-air inlet in place.
>> Made from a £1.74 funnel, a bit of spare heater ducting and a certain
>> amount of insulting tape to hold it all together.
>
>You haven't forgotten to put RAM AIR SYSTEM on the sides in large italic
>caps, have you?

hehe. 's a thought. 'course, what I need now is a turbo *and* a ram-air
system, then I can put "TURBO RAM AIR SYSTEM"...

>After all, there's no point unless everyone knows.
>

I might try and fake some of those warning stickers they have for jet engine
air intakes to put on the grille.


Joking aside... I took it out in daylight so as to watch the exhaust - going
up hill in 5th, full boot at about 45-50, there's definitely less smoke and
more torque. There's also less smoke in 4th, and still I think a bit more
go. On the flat(ish) it'll do 70 with more alacrity than was previously the
case.

What's more interesting is there appears to be an improvment at 20-30 mph on
the back roads, in that it seems willing to pull higher gears more of the
time. I can judge more accurately after the X-thing holidays, when I get
back on the regular run - will see if it'll pull various gear-speed critical
bits either more easily or in a higher gear.

My rough calculations indicated that at 2200 revs, the air in the inlet
tract is doing about 60 kph. Now on the small roads, I'm more likely to be
doing 40 kph or even less. The funnel is something like 2:1 on diameter,so
theoretically 4:1 on area - but I'd be amazed if the actual boost in inlet
pressure is more than about x1.5. I did contemplate fitting a gauge to the
manifold, if I can find one which does both vacuum and boost (or, I suppose,
2 gauges). Then I could compare the figures at different road speeds.

--
Austin Shackles. www.ddol-las.net my opinions are just that
Travel The Galaxy! Meet Fascinating Life Forms...
------------------------------------------------\
>> http://www.schlockmercenary.com/ << \ ...and Kill them.
a webcartoon by Howard Tayler; I like it, maybe you will too!

Hiya,

No it is normal four wheels. I have two spares.

Andy

"JacobH" <[email protected]> wrote in message
news:[email protected]...
> Andrew Renshaw wrote:
>> Hiya all,
>>
>> I have just bought six new tyres BF GOODRICH 235/85 R16 They are All
>> Terrain T\A. They were not cheap and I think my poor credit card
>> nearly melted. Anyway the garage have inflated them all to 28 psi.
>>
>> The vehicle is Defender 110 CSW 2.5TDI, 1991 UK Specification.
>>
>> I will be carrying a lot of weight at the back and have upgraded to
>> heavy duty springs and shockers.
>>
>> What PSI should I inflate the front and back to? Main driving is on
>> tarmac and ocassionally sand and dirt roads. Sometimes deep sand (I
>> suspect I will need to deflate the tyres for this).
>>
>> Happy New Year
>>
>> Andy
>
> 6? 4x6 or 6x6?
>
> --
> "He who says it cannot be done should not interrupt her doing it."
>
> If at first you don't succeed,
> maybe skydiving's not for you!
>
>