LDV Convoy gearing

The message from snipped-for-privacy@bigfoot.com (Andy Tightgit) contains these words:

They had fly-by-wire injection pumps by then, didn't they?

Do a Google for "mt75+ratio" and see what comes up.

Shouldn't run out of Revs till 75-80, quick check is it should hit the rev limiter at 65 in 4th, it might have lower ratio diff. However they're all noisy from new.

I reckon you're about right there, I've had it at 75 + before now, but it uses oil and lots more fuel if you do more than 60.( I get about 32 mpg at60. )I assume these gearboxes have fifth tagged on the back of the box, if so I could put a higher ratio pair in pretty easily as the box seems perfect. I would'nt be surprised if the turbo model is higher geared. Andy

Ford scorpios have 0.73 (diesel ) or o.83 (others). Mine seems lower than 0.83. I'll have to get underneath and try to estimate the ratio.

The message from snipped-for-privacy@bigfoot.com (Andy Tightgit) contains these words:

If you pop into a Frod dealer they should be able to tell you from the chassis number.

Ahh now I've never had one that used oil. Used to get a consistent 28 but then I used to drive it loaded.

replying to Andy Tightgit, Antjp wrote: My ldv convoy is at 3000 rpm at 60mph. If you dare do 70 it's 3500rpm. I only do

50-55mph in it because of this. 50mph is 2500rpm. Is there anything I can do to get 60mph at 2500rpm

Change the final drive.

Or fit wheels/tyres with a 20% bigger circumference. ;-)

Tim

Change the back axle for a more suitable ratio (smaller number to 1 than the unit you have) or fit an overdrive, or fit the 5 speed box if it has a 4 speed, or just buy a vehicle that is already better suited to what you want.

At higher than normal pressure. ;-)

I'm not actually sure what axle LDV uses and what alternative ratios can be found. They are all low geared because they are vans designed to carry heavy loads locally rather than bomb up and down the motorway.

I got the feeling the OP was after some sort of simple "magic" upgrade (like remapping the engine) to achieve his desire, although I could be wrong. ;-)

Tim

[...]

They have three alternative ratios based on plated weight. If the OP has the highest weight capacity, but runs empty, it will seem *very* low-geared.

Even with the highest ratio axle, high motorway revs at modest speeds was a common complaint (amongst many!) with drivers of these vans. They were cheap for a reason.

Chris

Place I once worked for had Sherpa V-8s. And they were very low geared too. Even when loaded they started off in second easily - on a 5 speed box. I suppose BL thought there no real point in competing with Merc etc for motorway use.