What do you mean by "gear box is set up with the ratios used for the early discovery". Do you actually mean 1st thru 5th gear, or are you meaning the transfer box?
I had read somewhere that the gearing on the discovery was set up to offer better cruising so presumably the gearing is different??? I suppose what I am trying to find out is if the vehicle is a 90 with a discovery engine and gearbox....
Great thanks...all taken the right way...its the research bit I am struggling with...I thought possible incorrect that the 300tdi came out in 94.. And that in a defender 90 had a different prefix ie not 21l...mine is a January 93 and as it has a 21l prefix therefore I wondered if it had a discovery gearbox transfer box too..Right. You really ought to do much more research.
And I hope you take this the right way, but if you want cruising from a Defender. You might as well chop it in now and get yourself a Disco or Range Rover.
Defenders are awesome vehicles. But they will never be quiet refined road vehicles. No matter how much money you waste on one. All the refinement and road manner issues with a Defender are solved with a Disco 1. Which under the body is almost identical to a Defender, but the rest is constructed in a completely different way.
Also all 300Tdi engines are identical pretty much. Be it Disco or Defender. Although the 300Tdi auto in the RRC and D1 uses a different electronic injector pump. But does nothing for refinement or cruising.
What you are probably thinking of is the taller 1.2:1 ratio transfer box fitted to the Discovery vs the 1.4:1 for the Defender. But what people fail to realise is, a Discovery is also fitted with smaller wheels as standard. This means mph per 1000rpm in top gear is almost identical on both vehicles.
You can fit the Disco 1.2:1 transfer box to a Defender. But tbh a stock Tdi probably won't pull the gearing very well and you'll end up in 4th gear a heck of a lot more often. And while you'll get a drop in rpm while cruising. It really isn't going to transform the vehicle.
Thanks....
Ok so thats interesting... According to that I have a discovery engine in a 90 12 months older than it should be....more reading I think....
Welcome To LandyZone, the Land Rover Forums!
Here at LandyZone we have plenty of very knowledgable members so if you have any questions about your Land Rover or just want to connect with other Landy owners, you're in the right place.
Registering is free and easy just click here, we hope to see you on the forums soon!
