Hi,

Might sound stupid, but at present am a complete novice. I am building a car for the 750mc locost series and want to get the parts sorted.

Been looking on the bay and there seems a multitude of choices on rear axles setups and gearbox.

Was thinking bout mounting a 4 speed mk2 box to the 1.3 xflow. But unsure what diff ratio is best. I assume that it is the english axle type that is found on the mkII escort. (48 inch if correct)

If anybody can help my decision...
Ta

HI again must stop talking like this.

right its escort axle not capri or cortina

gearbox wise the smaller escort box is of course lighter but thats the only good thing about it as it can be the weak link.

so i would personaly use the type 9 sierra / cortina box 4/5 speed

again personal choise but unless you buy a brian hills special 5 speed box with the better 5 gear . the standard 5th gear is to tall and becomes usless. unless you run a 4.4 diff and drive on the rev limit every where.

sensible choice then is to use a 4 speed type 9 sierra / cortina and a 4.1 diff ratio and this will enable you to do every circuit whithout changing for every circuit. the only unknown circuit this year is thruxton whitch is flat out all the way almost so will possibly need a 3.9 diff for there only.

hope this helps

cheers matt

if for any reason you need info and cant get a quick answer just give me a bell as i can answer any of your question on the 750 race side of things.

0121-350-3258

[Edited on 27/3/06 by procomp]

Get an Escort "English" axle --- a good bit lighter than the salsbury style.

Ta for your help chaps

andy you got to go for the good stuff!

cossie LSD 3.62/3.92 ratio, type 9 box, pinto engine, 2.o litre

HI you all seem to have missed he is building a 750mc race car to the regulations.

cheers matt