Pop quiz! 90/110 tyres sizes... working out gearing

Just a quick Q... (or two)
I'm just running some gear ratios thought excell for my 2A and I'm using
early 90/110 gearing as an example to check mine against. Did the 2 1/4
diesel 110 come as standard with 750R16 / 235/70R16 size tyres? And did the
90 NA diesle (only 2 1/2?) come with 205R16s? I'm sure others where options
but just going for the bog standard specs!
Now, lets go for the £1million Q and I've only got Ask the Audience left!
Did the 110 2 1/4 diesel have the 1.667 transfer box where as the the 90 had
the 1.41??
If this is all right... the 2 1/4 110 must have been bloody slow and noisy!
I'm working out how much gearing my 2A will pull with a bit more power..
Thanks! Toby

TVS wrote:

> Just a quick Q... (or two)
> I'm just running some gear ratios thought excell for my 2A and I'm using
> early 90/110 gearing as an example to check mine against. Did the 2 1/4
> diesel 110 come as standard with 750R16 / 235/70R16 size tyres? And did
> the 90 NA diesle (only 2 1/2?) come with 205R16s? I'm sure others where
> options but just going for the bog standard specs!
> Now, lets go for the £1million Q and I've only got Ask the Audience left!
> Did the 110 2 1/4 diesel have the 1.667 transfer box where as the the 90
> had the 1.41??
> If this is all right... the 2 1/4 110 must have been bloody slow and
> noisy! I'm working out how much gearing my 2A will pull with a bit more
> power.. Thanks! Toby

According to my 90/110 owner's handbook LSM0054HB (Edition 2) dated 1984,
the transfer ration for four cylinder (petrol and diesel) models was 1.4109
for the 90 and 1.6670 for the 110. This book covers the 2.5 diesel (I
suspect edition 1 covered the 2.25) and 2.25 Petrol, but I'd nearly bet the
ratio was the same.
JD

"JD" <[email protected]> wrote in message
news:[email protected]...
> TVS wrote:
>
>> Just a quick Q... (or two)
>> I'm just running some gear ratios thought excell for my 2A and I'm using
>> early 90/110 gearing as an example to check mine against. Did the 2 1/4
>> diesel 110 come as standard with 750R16 / 235/70R16 size tyres? And did
>> the 90 NA diesle (only 2 1/2?) come with 205R16s? I'm sure others where
>> options but just going for the bog standard specs!
>> Now, lets go for the £1million Q and I've only got Ask the Audience left!
>> Did the 110 2 1/4 diesel have the 1.667 transfer box where as the the 90
>> had the 1.41??
>> If this is all right... the 2 1/4 110 must have been bloody slow and
>> noisy! I'm working out how much gearing my 2A will pull with a bit more
>> power.. Thanks! Toby
>
> According to my 90/110 owner's handbook LSM0054HB (Edition 2) dated 1984,
> the transfer ration for four cylinder (petrol and diesel) models was
> 1.4109
> for the 90 and 1.6670 for the 110. This book covers the 2.5 diesel (I
> suspect edition 1 covered the 2.25) and 2.25 Petrol, but I'd nearly bet
> the
> ratio was the same.
> JD

I once had a 2.25 110 (petrol), yes it was the 1.667 ratio and yes it was
damn slow! 75mph was posible down a long hill, stopping was another issue
though! I fitted a 2.5 diesel, turbo'd it and fitted a 1.41 t/box, then
eventually gave up and slung in a zf auto and 4.0V8. Your tyre sizes of
750x16 and 205R16 for 110 and 90 respectively are correct for std fit.
Badger.

> >> Just a quick Q... (or two)
> >> I'm just running some gear ratios thought excell for my 2A and I'm
using
> >> early 90/110 gearing as an example to check mine against. Did the 2 1/4
> >> diesel 110 come as standard with 750R16 / 235/70R16 size tyres? And did
> >> the 90 NA diesle (only 2 1/2?) come with 205R16s? I'm sure others where
> >> options but just going for the bog standard specs!
> >> Now, lets go for the £1million Q and I've only got Ask the Audience
left!
> >> Did the 110 2 1/4 diesel have the 1.667 transfer box where as the the
90
> >> had the 1.41??
> >> If this is all right... the 2 1/4 110 must have been bloody slow and
> >> noisy! I'm working out how much gearing my 2A will pull with a bit more
> >> power.. Thanks! Toby
> >
> > According to my 90/110 owner's handbook LSM0054HB (Edition 2) dated
1984,
> > the transfer ration for four cylinder (petrol and diesel) models was
> > 1.4109
> > for the 90 and 1.6670 for the 110. This book covers the 2.5 diesel (I
> > suspect edition 1 covered the 2.25) and 2.25 Petrol, but I'd nearly bet
> > the
> > ratio was the same.
> > JD
>
> I once had a 2.25 110 (petrol), yes it was the 1.667 ratio and yes it was
> damn slow! 75mph was posible down a long hill, stopping was another issue
> though! I fitted a 2.5 diesel, turbo'd it and fitted a 1.41 t/box, then
> eventually gave up and slung in a zf auto and 4.0V8. Your tyre sizes of
> 750x16 and 205R16 for 110 and 90 respectively are correct for std fit.
> Badger.

Thanks for the replies!
I'm actualy going to turbocharge my 2 1/4 5main diesel... now I've heard a
few horor stories about other pepol doing this but I like living life on the
edge ;-)
I'm going for the manifolds and turbo from the 2.5 TD engine simply as they
will bolt straight on but I've done the maths and worked out that a Garrett
GT15 would be very nice. I'm simply going to increase the fueling on the CAV
pump by something like 20%. Should give performance very simular to the 2
1/4 petrol. Also will be using an intercooler. I do actualy have a EGT gauge
which I may fit and then have a futher play with the pump.
Would be very intrested to read more about other pepols experiences....
Thanks! Toby

PS
Does anybody have a spare TD inlet manifold they might like to pass on for
some beer tokens?

On Fri, 24 Dec 2004 00:18:33 -0000, "TVS" <[email protected]>
wrote:


>Thanks for the replies!
>I'm actualy going to turbocharge my 2 1/4 5main diesel... now I've heard a
>few horor stories about other pepol doing this but I like living life on the
>edge ;-)
>I'm going for the manifolds and turbo from the 2.5 TD engine simply as they
>will bolt straight on but I've done the maths and worked out that a Garrett
>GT15 would be very nice. I'm simply going to increase the fueling on the CAV
>pump by something like 20%. Should give performance very simular to the 2
>1/4 petrol. Also will be using an intercooler. I do actualy have a EGT gauge
>which I may fit and then have a futher play with the pump.
>Would be very intrested to read more about other pepols experiences....
>Thanks! Toby

Wouldnt it be easier and safer to start with an engine that is already
turbo'd, and just transplant that in to your landy?
Or is being 'easier' not the point?

Are you not tempted by that jag lump soon to be wasting away round at
Lee's house. Surely that has more potential for fun..