Gearing/Tyres for a 70mph cruise

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
zeaphod

zeaphod

Well-Known Member
Posts
3,108
Location
Belfast, Norn Iron
Lots of people here seem to be able to cruise happily at 70mph. My 90 is on the smaller 205 tyres, and I feel it would be revving a lot at 70. Are most people posting here on 7.50 x 16s - or am I being too cautious?
 
Last edited:
danny6801 said:
Very true if you've got big tyres on but don't think he has big tyres so should be fine.
Click to expand...

I'll need new tyres in the coming year anyway, easier than changing the transfer box. Something to think about though. Will the disco transfer box go straight on to the early LT77? I'm planning to buy another complete gearbox and rebuild it over the winter, so it might be worth doing then.
 
Mine is n/a but with 1:6 transfer. Ex military etc. So if I just stopped the transfer to 1.2 disco 200tdi type. Lt177 I think. I will cruise better yes ?
 
I have a set of cooper STT 255/70/16 that I took off another motor which have only done 1000 miles. Would the 2.5 NA engine cope with these or should I sell and buy smaller?
 
For all the people like me with these questions - it's well worth a look at the ashcroft transmissions site. They have a ratio calculator which will show you what revs you are pulling at different speeds, depending on gearbox/transfer box/tyre size.
 
I'm Considering swapping my 110 from a 1.67 to 1.4 transfer box, on 7.5 x16's. Has anyone got any feedback who's done similar? I don't want it to end up struggling up every incline but it'd be a big bonus to lower the strain on motorway cruising.
 
I wouldn't go lower than the 1.4 bid personally I just don't think the NA has the oomph to run the 1.2.

Would be fine in the flat but suck mega on the hills more than it does already.

Andrew I have the 1.4 in mine, come down my way and your welcome to have a drive
 
Cheers, I'm going to give it a go. My current box leaks a tad so its gonna need new gaskets so I might as well swap it for a 1.4. Not going anywhere near 1.2, as you say I'd never make it up hills.
 
You must log in or register to reply here.

Similar threads

O
Freelander 1 Tyres, coolant, filter, sunroof: Qs about the FL1, please assist!
Replies
3
Views
1K
GrumpyGel
GrumpyGel
dag019
A question of gearboxes
Replies
16
Views
1K
Skolmate
Skolmate
N
Looking for a 4.0l V8
2
Replies
36
Views
5K
v8250
v8250
H
Yes folks! It's tyre pressures again....
Replies
7
Views
2K
Hector the Bad
H
D
Steve's Land Raft
4 5 6
Replies
107
Views
9K
Dauphproto
D
Back
Top