6 Speed Mondeo gearbox

[zzr]

Does anybody know if it is possible to fit the 6 speed Mk3 Mondeo gearbox in a Mk1/2 Mondeo.

Also what are the final drive and gear ratios and max design bhp/torque for the 6 speed?

Paul

[anonymous-user]

Don't think you can-shift tower etc is different.

[UK_WS6]

I am quite sure the swap would be almost impossible.
I had the 5 speed, and now I have the 6 speed.
1000 rpm = 40mph in 6th.
It's the best thing Ford did when they mated the TDCi to the 6 speed.

[Damian S]

The 6th gear is pointless, far too long to be useful. Having tested my TDCI over many months, the conclusion is that the car returns better fuel economy in 5th than it does in 6th. Acceleration in 6th is pants as well. 5th is much better.

In general, I dont believe the manufacturers thought much about the ratios when developing that 6 speed box

[Jon GT2]

Mine pulls great in sixth,maybe just due to the map or perhaps they were thinking about me when they built it.

[Nebby]

My ST220 goes great in every gear including 6th, but i think people are comparing there own cars to the 6 speed box, which although the ST TDCI is a great car it's not same as the ST220 so i dare say both cars will behave diffrently to the 6 speed box.

[emicen]

Is it not fairly obvious that 6th was added as a nod to the huge number of cars that get used as motorway cruisers?

My Golf has a 6th, but 5th is the one to use when you want it to pull, 6th when you are shunting along the motorway.

[Podie]

Paul, I spoke to a man in the know and he said it's not do-able...

[UK_WS6]

I have more than adequate acceleration in 6th.

This might be because I generally get in the 80mph area.

I very ofton get into 6th and cruise control at 70, effortless, as long as there aint too much of a rise in road level it will cope rather well.

Also it is quite ofton just myself in the car, and this will make a differnce.

[Damian S]

Nebby said:

My ST220 goes great in every gear including 6th, but i think people are comparing there own cars to the 6 speed box, which although the ST TDCI is a great car it's not same as the ST220 so i dare say both cars will behave diffrently to the 6 speed box.

The final drive will be very different in the ST220. Your car wont be doing just over 2krpm at 80mph, probably more like 3krpm. This difference in gearing makes a large impact on the torque delivered to the wheels.

btw, my TDCI has been remapped as well. 6th is better than it was (pre remap) but still pretty pointless when 5th accelerates so much better.

[ZZR]

Podie said:

Paul, I spoke to a man in the know and he said it's not do-able...

Cheers Pod, that's answered my question, shame, because once the Turbo is fitted it would of pulled a much higher top speed with the longer 6th.

[Jon GT2]

I see where your coming from Damian,Ford dont build the car with you or i in mind so sixth gear is there for economy not performance hence the long gearing.Interestingly when i tested mine with gps speed equipment i achieved my highest top speed of 147 mph in sixth gear(Rumour has it that Ford have seen 152mph but it could be a story).The speedo is wildly inaccurate and indicates 140 at around 125, near to the 10%tolerance.

[anonymous-user]

Jon i'd get that checked-most people who have checked speedo vs GPS have only found it to be 5MPH out at near top speed!

[UK_WS6]

Dave_ST220 said:

Jon i'd get that checked-most people who have checked speedo vs GPS have only found it to be 5MPH out at near top speed!

,
,
On mine,
Speedo reads 100
gps reads 90
The slower you go, ie, speedo 50,
gps 45

[anonymous-user]

/\ is that a 220 or diesel as well?

[Damian S]

Jon GT2 said:

I see where your coming from Damian,Ford dont build the car with you or i in mind so sixth gear is there for economy not performance hence the long gearing.

true enough, but considering my earlier point that 5th returns better mpg than 6th....wtf is 6th for?

[Jon GT2]

Sorry boys i should have said on professional speed monitoring equipment on a track not on my sat nav, origin etc(I was suprised how far it was out,it goes off the end of the clock well before it stops pulling so i suspect its correct).Mine is better in sixth on mpg than fifth so i suppose that could be dependant on the map installed doesnt make much sense otherwise as rpm's in general dictate mpg's.

Edited by Jon GT2 on Wednesday 25th July 16:20

[anonymous-user]

How can it @ a steady speed? If you are constantly varying speed then i would guess 5th would be better but at a constant 70MPH i can't see how 5th would be better-lower revs=less fuel used yes/no??!!

[Damian S]

Im no expert but would guess that engine efficiency @ rpm also has quite an effect on mpg, not just rpm itself.
I have always assumed that the rpm point at which peak torque is produced is where the engine's most efficient. Peak torque on the TDCI is around 2.5krpm, 70mph in 5th is around the 2.5krpm mark, where as 70mph in 6th is around 1.9krpm. Could be completely wrong here though. at the same time, I cant think of anything else that could explain it.

[Jon GT2]

Yes its a conundrum no doubt,if the engine was labouring in sixth gear then it would explain a loss of efficiency but at 1900rpm its enduring very low stress levels, very odd.