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benji
07-09-04, 08:22 PM
it's time i got myself a decent cr box. which one should i go for? not too sure about gearboxes.

i want a 4.18 fd, where will i find one of these? and which box should i put it in? f10cr or f13cr?

i heard that a 1600 clutch will fit to a 1400 flywhell and f10 box, is this right and is it much bigger than a 1400 item?

cheers

ben.
Stuart
07-09-04, 10:53 PM
im not sure on the flywheel/clutch combs as ive not delved that far in lol


but for the CR box, id suggest an F13 irem coupled with a 4.18 fd (17 and 71 teeth) if you cant get the bellhousings to match then just keep your current housing and slap the gear cluster and diff into that :) simple
MC
08-09-04, 08:44 AM
What box have you got now? If its a long ratio box, odds are that it will have a decent FD. If its an F10cr, use that and locate an FD from a wide ratio box. All you gotta do is look round the scrap yards for whats stamped on the end of all the boxes.

MC
robb
08-09-04, 09:34 AM
I can't find any codes on the end of the boxes! I have looked all over it.

Never found one on my 1.4 and that went through 3 of them!

And I can't find one on my 1.6 F13? box?

I have this but dunno if it's any good....
http://www.tms-stores.com/gearbox_identification.gif
MC
08-09-04, 10:29 AM
They are all stamped very lightly. The slightest dirt or corrosion will obscure the numbers.

MC
-Bruce-
08-09-04, 10:37 AM
i was speaking to rob about this before i could not see where the stamp was on my f13!! but if you say it stamped very lightly i will have another look!!
Stuart
08-09-04, 10:52 AM
carb cleaner and rag. clean up the section of casing that actually holds the gears

ie not the end plate, but the next part in, at the bottom
-Bruce-
08-09-04, 11:06 AM
cheers cambridge, i wil do and do that when i get off this PC!!

bruce
Ste_Nova
08-09-04, 11:07 AM
http://img.photobucket.com/albums/v343/Ste_Nova/box001.jpg
robb
08-09-04, 12:05 PM
Cheers STE.

And f*ck that's a dirty box LOL
Ste_Nova
08-09-04, 12:45 PM
Cheers STE.

And f*ck that's a dirty box LOL


lol thats clean
robb
08-09-04, 01:12 PM
Ho ho, that box would be a cr with 3.54 FD then?
-Bruce-
08-09-04, 02:39 PM
just had a look at mine on the GTE! its a cr 3.74

it was very clean just had alot of dirt over it, think i will get a 4.18. where would i source one form?

bruce
robb
08-09-04, 03:21 PM
Is the ratio like a multiplier so the higher it is the higher the output?

so a GTE with a 3.74 diff will have a lower top speed than a 4.18 diff?
MC
08-09-04, 04:41 PM
Other way around, 4.18 has lower top speed than 3.74.

And you'll find the 4.18 in a WR box.

MC
benji
08-09-04, 05:41 PM
mc, my box is a 5speed f10 from a 1.2, dunno what fd it has, probably a 3.9
Stuart
08-09-04, 05:45 PM
3.74 or 3.94 one of them. my 1.2 had in it lol
-Bruce-
08-09-04, 06:10 PM
so i will look for a f13 with a Wr 4.18?? is it likely for me to find one?

bruce
Snowface
08-09-04, 06:11 PM
My 1989/1990 G-reg from a 1.2 is an F10 w/r 3.94, just looked.
-Bruce-
08-09-04, 09:31 PM
rite i have just been told by dan to get out to look at mah f10 sr box and see what Fd is in it!! and its a 4.18 so im dead chuffed!!
so they are in the sr boxes!! :P

bruce
Jim
08-09-04, 10:23 PM
rite i have just been told by dan to get out to look at mah f10 sr box and see what Fd is in it!! and its a 4.18 so im dead chuffed!!
so they are in the sr boxes!! :P

bruce

They are in some of the SR boxes, mostly the Mk1 SR's. I got my 4.18 FD from a WR cavalier gearbox.

As has been said, just go around to local scrap dealers. In fact, heres a link to a company that will have the 4.18 on the shelf (provided they haven't run out of stock), and will post it to you.

http://www.megavaux.co.uk/

Give them a call, they should be able to help you out.

Jim
-Bruce-
08-09-04, 10:43 PM
cheers jim, i will have take it apart tomorrow and see if its really a 4.18! lol if its not i will look at geting one from there or off a cavi f13.

bruce
MC
10-09-04, 09:29 AM
If it has a 4.18, it wont be a close ratio, so you need to go find one of those to combine with your FD.

MC
-Bruce-
10-09-04, 10:30 AM
yeh mc i got the gearbox off the GTE that i will be fitting it into!! it has a f13 cr, so thats all good eh? the box that has the 4.18 in is from a sr box

bruce
-Greg-
10-09-04, 10:57 AM
whats the difference in performance wise between the 4.18fd and all the 3.74fd etc i know its a stupid question but i dont no lol
robb
10-09-04, 11:18 AM
Its a ratio and applies to the gearbox not engine power.

higher the ratio the lower the top speed so the faster the accelleration.

If you were to do 1/4 miles you would play with the gears to give a terminal top speed at the end of the 1/4 doing the 1/4 faster. etc.