Did the RS1800's come with an MTX75 gearbox or IB5? Does anyone know if the flywheel is the same as a 2.0L Mondeo?

Cheers,

 

IB5 mate

 

Not sure if there was a GFJ with a IB5 box, I think it was "just" a B5.

Flywheel is smaller than Mondeo and RS2k one

 

BC you mean

 

No. BC is a FWD 4-Speed box.
The 5-Speed version is called B5.
And the later uprated B5 was called IB5. It was introduced somewhen between '94 and '96

 

ive got a 2.0 mondeo engine in my RS1800,would it be hard to fit the MTX75 gear box?and what difference would it make?

also wot would i need to do to get it to fit

 

Yes it is hard, poss a little easier with a zetec than a CVH like i am doing but it isnt easy by any means!

So far i have had to do the following to fit a focus RS MTX75 (rs2k are slightly easier in some ways):-

Cut N/S chassis leg alot to box round the larger gearbox

Cut a large hole in the bulk head to accept a hydrolic pedal box

Have a focus zetec alloy flywheel holes slieved to fit the smaller crank bolts that the CH take - thought i may as well go for a fidanza lightweight one rather than having a std focus one machined down a little!

Use a focus RS clutch - i had a custom 6 paddle helix item made to reduce the heavyness in the pedal slightly and make the car easier to drive in trafic.

Have custom mounts fabricated so the box will mount to the car - i am goint to use the focus top mount and then have two link mounts to prevent any swing in the engine and box

Have a focus 3 piece shaft shortened to fit into the fiesta

As i am converting an early mk3 to run an MTX75 i had to swap the front hubs, suspension and lower arms to a mk3.5 setup so that the focus shafts fit into the hubs

Also i have got to basically make a one off centre console to accommodate the cable linkage off the focus with lift up reverse (the focus one will not fit by any means so a mk3 one needs alot of fiberglassing!)

Thats all i can think of off hand but is not by any means a complete list.

 

sounds like alot of hard work,might just leave it as is,can i uprate the gearbox that i allready have?

 

Nope BC was both 4 and 5 speed and was superceeded by the IB5 around 1995.

The BC box was used in Mk1,2 and 3 Fiesta's as well as Mk3,4,5 Escorts