F13 Gearbox

[G-MANS]

Going to change my F13 gearbox which has "W 4 18" written on it, to an F13 gearbox with "C 3 74" wtitten on it. I know one is wide ratio and the other is a close ratio box, but what is the main difference i will notice whilst driving my car. Is it a huge difference in accelaration or is it a slight insignificant difference that I wont notice much.

Also is it a straight swap as they are both F13's ?

Cheers

G

[Adam]

The first one is a wide ratio box with a high final drive, the second is close ratio with a lower final drive.
Not sure how much difference you would notice, probably the CR one will accelerate better, even with a lower FD.

Yep, straight swap.

[General Baxter]

i fitted a F13 Cr to my 1.2 and it totaly kills a WD box lol

just ask nathan :p

[Stuart]

Fit the CR box with the FD from the W box... uber accel :D

[Geth]

I'm going to be putting an F13cr 3.74 fd in my car soon (got the box just haven't got the time to do it). I'm hoping that the car will be a little more more fun to drive even with the lower fd ratio. You should notice a difference in the acceleration without losing too much top end.

If you are going for balls out accelaration like Stuart then you may want to fit a 4.13 fd but probably not practical for motorway use.

[Stuart]

its not terrible, its just a little higger revving than normal... if your stripped out its a tad annoying but saying that i can fall asleep in dans track car on most road trips we do lol

[polly]

what revs would it be doing at 60 mph in 5th gear and have you an lsd

[Stuart]

see speed in gear in the sig....

lsd makes feck all difference to your speed lol (unless you mean acid ;) )

[benthehash]

got close ratio f13 box and bought a 4.18 final drive to go in.
what box's came with this final drive?

[Stuart]

see the nova/corsa gearbox image links in the speed in gear link on my sig.....

[polly]

would you be able to tell me what revs the engine does at 60 mph in 5th gear please with the f13 cr with a 4.1 my computer cant log on to your site.
and have you got a lsd fitted or not does it spin wheels a bit too easy without one

[Adam]

About 3400rpm /\

[TommySR]

very useful site that is in Stuarts sig by the way, ive got a C14SE and wonderin how much of a difference one of these boxes would make and how cheap i can find one for? Engines totally standard bar filter and 4 branch, is it worth it as im only running this motor into the ground before ive got enough money for my engine conversion?

[benthehash]

i got my gearbox free and bought the FD from ebay under ?50 i think. havent finished my engine yet so haven't tryed it but spose to make a good acceleration differents.

[Geth]

Mine is going in this weekend as well. Will let you know what the difference is when it's back on the road (probably monday as I have some other bits and pieces to do at the same time).