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Clutch
14-10-04, 11:09 PM
What?s the best gear box to E16SE the original one is F13/5 cr but at 5ft gear it cut the revs...
Is any one better than this?
robb
15-10-04, 09:07 AM
You mean it is tall geared in 5th? Or a big jump from 4th to 5th?
Clutch
15-10-04, 09:32 PM
It?s like this mate when my car goes into 6800 in 5ft it?s game over lol...
no more speed...
Stuart
15-10-04, 09:36 PM
umm you mean you hit your rev limiter in 5th.

so what thats pleanty fast enough lol


if you dont mind losing a bit of acceleration then fit a 3.74 final drive and that will bring your top end up a bit/lot while keeping the close ratio box
Dan
15-10-04, 09:45 PM
erm stu, the gte cluster had the 3.74 as standard mate
Stuart
15-10-04, 09:48 PM
like i check what i take appart :p
johnny27
16-10-04, 07:26 PM
its all abit of give and take. Think the problem is that most 5th gears in vauxhall boxes are enconmy (spelling?) gears, meaning it has'nt got enough puff with the long gear to hit the rev limiter in 5th. its just to save fuel with the long gear. So what i mean by give and take is in theroy a low FD like the 4.18 will let you reach the rev limiter, but won't get as much top speed
robb
18-10-04, 08:51 AM
I don't understand what he wants, to have a longer gear box cos it hits the limiter in 5th?
Gunzi
18-10-04, 12:47 PM
I think thats it, he wants a longer gear ratios, so when he's on a top end run the gearbox won't top out at whatever speed the F13 tops out at (119mph?) Would he be looking at an F15 box?
robb
18-10-04, 01:06 PM
I/We have had an F13 with 3.74 diff to 131mph and still no limiter, close to though :roll:
johnny27
18-10-04, 09:51 PM
what i mean is, if you have longer gear ratios are you going to have the power to reach near the limiter in 5th? Cause alot of vauxs don't unless they've got alot of power, ecomny gear
Clutch
18-10-04, 10:23 PM
Yeah what i ment was a longer gear ratio.
robb
19-10-04, 10:27 AM
You will need a longer final drive then, smaller number IIRC than 3.74.

You may also notice it is a CR box, see if vaux did a WR F13 box, prob with a 4.?? or higher fd to compensate, a bit of mix and match you got a WR with 3.74 fd :D

Look at the end of the box to determine which fd it has.

This may help too:
http://www.tms-stores.com/gearbox_identification.gif