Vehicle & Technical > Defender

Anybody fit a disco 200tdi transfer box to a defender 200tdi

<< < (4/4)

Ridgeback:
I have just done the swap to a disco one in my 200tdi 90.
I would say it was well worth it. It's no faster when flat out but is not revving so much so less noisy.The only downside I have found is on big hills. With the defender one it would go up in 5th, I now need to drop to 4th.
I don't tow much so I am well pleased with the new gearing but if you do tow heavy loads i would stay with the Defender one.
The handbrake will need to be swapped over and some of the linkage and speedo drive gear.

Matt

tonto69:
Fitted mine nearly 2 yrs ago, however running on 235/85/16 I found it to be a bit lethargic on hills without the bigger intercooler. With the intercooler it will happily cruise at 80-85mph all day on the motorway as opposed to 70/75mph before

V8burble:
I've just swapped my 110 V8 from a 1.4 to a 1.2 but have yet to get it on the road and try it.
I'm hoping to improve fuel consumption at 50/60 mph.
Regarding power the thing to consider is, which is better, high geared t/b and run in lower gear or low geared t/b and run in higher gear.
I used to have an old truck with a two speed axle and it made no difference which diff ratio was being used when climbing hills when the revs/road speed was similar.
So which uses more fuel, 70mph in fifth at 4000rpm or 70mph in 3rd at 4000rpm?
Which accelerates better, 2nd with a low diff or 1st with a high diff?

My 'new' 1.2 t/box will give me the approximately following speeds when taken to 3000rpm in each gear
1st 19   
2nd 31
3rd 48   
4th 68
5th 85  (was about 53)

so running in third at 3000ish is about what it was round about doing in 5th before so I recon that if I want power for towing then run in 4th on the motorway, I'll be higher than before but not too high and should be more economical.

I'll let you know :lol:

(Figures not meant to be strictly accurate, just a guide)

Navigation

[0] Message Index

[*] Previous page