S
Shayne
Guest
hello are 235/85/16's large enugh to bugger up the gearing (ratios) of a
disco1 v8 ??
disco1 v8 ??
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A
Austin Shackles
Guest
On or around Sat, 16 Oct 2004 17:44:17 GMT, "Shayne" <[email protected]>
enlightened us thusly:
>hello are 235/85/16's large enugh to bugger up the gearing (ratios) of a
>disco1 v8 ??
no but they're large enough to foul the bodywork unless you lift the
suspension as well.
valid for getting more diff clearance in a serious offroader, and they will
cause a slight raise in the gearing leading to a speedo inaccuracy (the
arithmetical solution is left as an exercise for the reader)
but bodywork will be your main worry, AIUI.
enlightened us thusly:
>hello are 235/85/16's large enugh to bugger up the gearing (ratios) of a
>disco1 v8 ??
no but they're large enough to foul the bodywork unless you lift the
suspension as well.
valid for getting more diff clearance in a serious offroader, and they will
cause a slight raise in the gearing leading to a speedo inaccuracy (the
arithmetical solution is left as an exercise for the reader)
but bodywork will be your main worry, AIUI.
S
Shayne
Guest
as i suspected.
im aware of the bodywork mods (already done)
they make the speedo read 35 when doing a gps verified 40.
it just seems to be a lot slower off the mark and i seem to need
more loud pedal to maintain speed on inclines than i would]
have expected.
im aware of the bodywork mods (already done)
they make the speedo read 35 when doing a gps verified 40.
it just seems to be a lot slower off the mark and i seem to need
more loud pedal to maintain speed on inclines than i would]
have expected.
D
Dave White
Guest
In <[email protected]> Shayne wrote:
> hello are 235/85/16's large enugh to bugger up the gearing (ratios) of
> a disco1 v8 ??
>
Yes....
It's not too bad in a manual but can make it hard work in an auto where
you have to keep kicking it down all the time. I had this problem with
my Range Rover and, latterly, the 100 inch Defender that shared the same
drive train. Fitting a 1.4 transfer box (or converting it) instead of
the 1.2 compensates well. The 1.6 transfer box, I found, was too low
geared making motorway speeds uncomfortable but the 1.4 is just about
spot on with 235/85.
A lot of Defender TD5 owners seem to be upgrading their standard 1.4
ratio xfer boxes to 1.2 as the 1.4 is a bit low geared for the engine
and this has generated a fairly steady supply of second hand 1.4 ratio
gears at reasonable prices. You do have to be in the right place at the
right time though.
cheers
Dave W.
http://www.yorkshireoffroadclub.net/
> hello are 235/85/16's large enugh to bugger up the gearing (ratios) of
> a disco1 v8 ??
>
Yes....
It's not too bad in a manual but can make it hard work in an auto where
you have to keep kicking it down all the time. I had this problem with
my Range Rover and, latterly, the 100 inch Defender that shared the same
drive train. Fitting a 1.4 transfer box (or converting it) instead of
the 1.2 compensates well. The 1.6 transfer box, I found, was too low
geared making motorway speeds uncomfortable but the 1.4 is just about
spot on with 235/85.
A lot of Defender TD5 owners seem to be upgrading their standard 1.4
ratio xfer boxes to 1.2 as the 1.4 is a bit low geared for the engine
and this has generated a fairly steady supply of second hand 1.4 ratio
gears at reasonable prices. You do have to be in the right place at the
right time though.
cheers
Dave W.
http://www.yorkshireoffroadclub.net/
S
Shayne
Guest
ah superb thats just what i wanted to know thanks
now where did i leave those gears......
now where did i leave those gears......
T
Tim Hobbs
Guest
On Sat, 16 Oct 2004 20:29:36 +0100, Austin Shackles
<[email protected]> wrote:
>On or around Sat, 16 Oct 2004 17:44:17 GMT, "Shayne" <[email protected]>
>enlightened us thusly:
>
>>hello are 235/85/16's large enugh to bugger up the gearing (ratios) of a
>>disco1 v8 ??
>
>no but they're large enough to foul the bodywork unless you lift the
>suspension as well.
>
>valid for getting more diff clearance in a serious offroader, and they will
>cause a slight raise in the gearing leading to a speedo inaccuracy (the
>arithmetical solution is left as an exercise for the reader)
>
OK, so I'm bored.
Old tyres have a nominal radius of 368mm.
New tyres have a nominal radius of 403mm.
Therefore gearing is buggered up (not down) by 9.5%. So when your
speedo says 70 you are doing 77. In fact my Disco used to say 77 when
I was doing 70 on standard tyres, so you might find it is now bang on!
--
Tim Hobbs
'58 Series 2 88" aka "Stig"
'77 101FC Ambulance aka "Burrt"
'03 Volvo V70
My Landies? http://www.seriesii.co.uk
Barcoding? http://www.bartec-systems.com
Tony Luckwill web archive at http://www.luckwill.com
<[email protected]> wrote:
>On or around Sat, 16 Oct 2004 17:44:17 GMT, "Shayne" <[email protected]>
>enlightened us thusly:
>
>>hello are 235/85/16's large enugh to bugger up the gearing (ratios) of a
>>disco1 v8 ??
>
>no but they're large enough to foul the bodywork unless you lift the
>suspension as well.
>
>valid for getting more diff clearance in a serious offroader, and they will
>cause a slight raise in the gearing leading to a speedo inaccuracy (the
>arithmetical solution is left as an exercise for the reader)
>
OK, so I'm bored.
Old tyres have a nominal radius of 368mm.
New tyres have a nominal radius of 403mm.
Therefore gearing is buggered up (not down) by 9.5%. So when your
speedo says 70 you are doing 77. In fact my Disco used to say 77 when
I was doing 70 on standard tyres, so you might find it is now bang on!
--
Tim Hobbs
'58 Series 2 88" aka "Stig"
'77 101FC Ambulance aka "Burrt"
'03 Volvo V70
My Landies? http://www.seriesii.co.uk
Barcoding? http://www.bartec-systems.com
Tony Luckwill web archive at http://www.luckwill.com
L
Lee_D
Guest
"Dave White" <[email protected]> wrote in message
news:[email protected]...
> In <[email protected]> Shayne wrote:
>> hello are 235/85/16's large enugh to bugger up the gearing (ratios) of
>> a disco1 v8 ??
>>
>
> Yes....
>
> It's not too bad in a manual but can make it hard work in an auto where
> you have to keep kicking it down all the time. I had this problem with
> my Range Rover and, latterly, the 100 inch Defender that shared the same
> drive train. Fitting a 1.4 transfer box (or converting it) instead of
> the 1.2 compensates well. The 1.6 transfer box, I found, was too low
> geared making motorway speeds uncomfortable but the 1.4 is just about
> spot on with 235/85.
>
> A lot of Defender TD5 owners seem to be upgrading their standard 1.4
> ratio xfer boxes to 1.2 as the 1.4 is a bit low geared for the engine
> and this has generated a fairly steady supply of second hand 1.4 ratio
> gears at reasonable prices. You do have to be in the right place at the
> right time though.
>
> cheers
>
> Dave W.
> http://www.yorkshireoffroadclub.net/
Dave - thinking of taking Martyns Lead on the 101 and Auto front , what
typically would I find a 4 speed ZF and 1.2 (1.192??) ratio transfer box
in? Only ask as I haven't a clue. How would I spot the difference assuming I
get down and dirty.
Lee D
news:[email protected]...
> In <[email protected]> Shayne wrote:
>> hello are 235/85/16's large enugh to bugger up the gearing (ratios) of
>> a disco1 v8 ??
>>
>
> Yes....
>
> It's not too bad in a manual but can make it hard work in an auto where
> you have to keep kicking it down all the time. I had this problem with
> my Range Rover and, latterly, the 100 inch Defender that shared the same
> drive train. Fitting a 1.4 transfer box (or converting it) instead of
> the 1.2 compensates well. The 1.6 transfer box, I found, was too low
> geared making motorway speeds uncomfortable but the 1.4 is just about
> spot on with 235/85.
>
> A lot of Defender TD5 owners seem to be upgrading their standard 1.4
> ratio xfer boxes to 1.2 as the 1.4 is a bit low geared for the engine
> and this has generated a fairly steady supply of second hand 1.4 ratio
> gears at reasonable prices. You do have to be in the right place at the
> right time though.
>
> cheers
>
> Dave W.
> http://www.yorkshireoffroadclub.net/
Dave - thinking of taking Martyns Lead on the 101 and Auto front , what
typically would I find a 4 speed ZF and 1.2 (1.192??) ratio transfer box
in? Only ask as I haven't a clue. How would I spot the difference assuming I
get down and dirty.
Lee D
D
Dave White
Guest
In <[email protected]> Lee_D wrote:
> Dave - thinking of taking Martyns Lead on the 101 and Auto front ,
> what typically would I find a 4 speed ZF and 1.2 (1.192??) ratio
> transfer box in? Only ask as I haven't a clue. How would I spot the
> difference assuming I get down and dirty.
The 1.2 (actually 1.222 IIRC) is easy to find. It's standard fitting on
Discoveries and Classic Range Rovers with the ZF 4-speed and most of the
manual boxes. If you want to change the ratios at some time without
changing the xfer box then you need to look for the LT230 xfer box. This
rules out the later RRC (89 on) with the BW xfer box. They are easy to
spot as they have no diff lcck position on the lever - just hi and lo.
The 1.0192 (or whatever it was) was used on the back of the 3 speed auto
in RRCs. They are really useful for big diesel engines (like the v8 GMs)
when used with the ZF 4 speed but are over geared for most other engines.
Spotting the difference comes down to two options - look for the sticker
on the back of the xfer box or count the turns. For the latter just turn
the output shaft through 1 full revolution and see how far the input
shaft/gear turns. 1.2 turns and it's a 1.2, 1.4 turns and it's a 1.4 etc...
The sticker is usually somewhere around the filler/level hole.
1.4 ratio boxes are found on modern Defenders of all types. Older ones
with LT230s can have either 1.4 or 1.6 ratios depending on engine, use
and wheelbase.
Don't rule the BW box out if you can cope with the 1.222 ratio. The
viscous diff and the chain drive make for a much quieter transmission
than the LT230 does. I'd guess that this would also be easier to fit to
a 101 as you just need a single linkage that travels along the gearbox
so you could mount the lever on the engine cover ?
If you get a ZF that was originally bolted to a BW xfer box you may need
to get a replacement output shaft to use with the LT230. The LT230 shaft
has splines almost it's full length whereas the shaft fitted to the BW
xfer box MAY only have splines cut half way along it.
cheers
Dave W
http://www.yorkshireoffroadclub.net/
> Dave - thinking of taking Martyns Lead on the 101 and Auto front ,
> what typically would I find a 4 speed ZF and 1.2 (1.192??) ratio
> transfer box in? Only ask as I haven't a clue. How would I spot the
> difference assuming I get down and dirty.
The 1.2 (actually 1.222 IIRC) is easy to find. It's standard fitting on
Discoveries and Classic Range Rovers with the ZF 4-speed and most of the
manual boxes. If you want to change the ratios at some time without
changing the xfer box then you need to look for the LT230 xfer box. This
rules out the later RRC (89 on) with the BW xfer box. They are easy to
spot as they have no diff lcck position on the lever - just hi and lo.
The 1.0192 (or whatever it was) was used on the back of the 3 speed auto
in RRCs. They are really useful for big diesel engines (like the v8 GMs)
when used with the ZF 4 speed but are over geared for most other engines.
Spotting the difference comes down to two options - look for the sticker
on the back of the xfer box or count the turns. For the latter just turn
the output shaft through 1 full revolution and see how far the input
shaft/gear turns. 1.2 turns and it's a 1.2, 1.4 turns and it's a 1.4 etc...
The sticker is usually somewhere around the filler/level hole.
1.4 ratio boxes are found on modern Defenders of all types. Older ones
with LT230s can have either 1.4 or 1.6 ratios depending on engine, use
and wheelbase.
Don't rule the BW box out if you can cope with the 1.222 ratio. The
viscous diff and the chain drive make for a much quieter transmission
than the LT230 does. I'd guess that this would also be easier to fit to
a 101 as you just need a single linkage that travels along the gearbox
so you could mount the lever on the engine cover ?
If you get a ZF that was originally bolted to a BW xfer box you may need
to get a replacement output shaft to use with the LT230. The LT230 shaft
has splines almost it's full length whereas the shaft fitted to the BW
xfer box MAY only have splines cut half way along it.
cheers
Dave W
http://www.yorkshireoffroadclub.net/
M
Mother
Guest
On Sun, 17 Oct 2004 22:14:34 GMT, "Lee_D" <[email protected]> wrote:
>Dave - thinking of taking Martyns Lead on the 101 and Auto front , what
>typically would I find a 4 speed ZF and 1.2 (1.192??) ratio transfer box
>in? Only ask as I haven't a clue. How would I spot the difference assuming I
>get down and dirty.
A Range Rover? Warren simply called a breaker in Worksop (Phil, are
you here yet?) and it arrived a day or so later...
>Dave - thinking of taking Martyns Lead on the 101 and Auto front , what
>typically would I find a 4 speed ZF and 1.2 (1.192??) ratio transfer box
>in? Only ask as I haven't a clue. How would I spot the difference assuming I
>get down and dirty.
A Range Rover? Warren simply called a breaker in Worksop (Phil, are
you here yet?) and it arrived a day or so later...
E
EMB
Guest
Mother wrote:
>
> A Range Rover? Warren simply called a breaker in Worksop (Phil, are
> you here yet?) and it arrived a day or so later...
How is Worksop and environs nowadays? That's the general area of my
forebears - I haven't been there for almost 2 decades but last time I
did it was in a new 110.
--
EMB
change two to the number to reply
>
> A Range Rover? Warren simply called a breaker in Worksop (Phil, are
> you here yet?) and it arrived a day or so later...
How is Worksop and environs nowadays? That's the general area of my
forebears - I haven't been there for almost 2 decades but last time I
did it was in a new 110.
--
EMB
change two to the number to reply
M
Mother
Guest
On Mon, 18 Oct 2004 23:32:31 +1300, EMB <[email protected]> wrote:
>How is Worksop and environs nowadays?
Very green, lots of regeneration, some good pubs, nice people...
Shame it's in Notts, but hey, at least it isn't in Lancs ;-)
>How is Worksop and environs nowadays?
Very green, lots of regeneration, some good pubs, nice people...
Shame it's in Notts, but hey, at least it isn't in Lancs ;-)
L
Lee_D
Guest
"Mother" <"@ {m} @"@101fc.net> wrote in message
news:[email protected]...
> On Sun, 17 Oct 2004 22:14:34 GMT, "Lee_D" <[email protected]> wrote:
>
>>Dave - thinking of taking Martyns Lead on the 101 and Auto front , what
>>typically would I find a 4 speed ZF and 1.2 (1.192??) ratio transfer box
>>in? Only ask as I haven't a clue. How would I spot the difference assuming
>>I
>>get down and dirty.
>
> A Range Rover? Warren simply called a breaker in Worksop (Phil, are
> you here yet?) and it arrived a day or so later...
>
Given the prospect of breaking a Rangie or purchasing individual bits...
choices choices.
I have a want for (note not a need!)
Leather seats for Alfie.
3.5 / 3.9 and Auto for Morph
Power steering set up for Morph.. I assume a rangie one will go just the
same??
Replacement better condition top tailgate for Alfie.
Replacement rear wings for Alfie as the arches rot has introduced ally rot
in a nice arch type shape.
The remains would then be ebayed away with the help of my chopper
I could of course just manage to scrape by with none of the above... but
whats the fun in that.
Lee D
news:[email protected]...
> On Sun, 17 Oct 2004 22:14:34 GMT, "Lee_D" <[email protected]> wrote:
>
>>Dave - thinking of taking Martyns Lead on the 101 and Auto front , what
>>typically would I find a 4 speed ZF and 1.2 (1.192??) ratio transfer box
>>in? Only ask as I haven't a clue. How would I spot the difference assuming
>>I
>>get down and dirty.
>
> A Range Rover? Warren simply called a breaker in Worksop (Phil, are
> you here yet?) and it arrived a day or so later...
>
Given the prospect of breaking a Rangie or purchasing individual bits...
choices choices.
I have a want for (note not a need!)
Leather seats for Alfie.
3.5 / 3.9 and Auto for Morph
Power steering set up for Morph.. I assume a rangie one will go just the
same??
Replacement better condition top tailgate for Alfie.
Replacement rear wings for Alfie as the arches rot has introduced ally rot
in a nice arch type shape.
The remains would then be ebayed away with the help of my chopper
I could of course just manage to scrape by with none of the above... but
whats the fun in that.
Lee D
M
Mother
Guest
On Mon, 18 Oct 2004 18:22:23 GMT, "Lee_D" <[email protected]> wrote:
>I have a want for (note not a need!)
Dunno what you mean (whistles aimlessly...)
>I have a want for (note not a need!)
Dunno what you mean (whistles aimlessly...)
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