omega 24 v6
|
| posted on 27/12/05 at 01:32 PM |
|
|
What did this ratio come from
I've got what's supposed to be a capri axle. I measured the backplates and they're 52" the half shafts are 4 stud (short) and
it looks like it's been for a leaf spring with an anti roll bar fitted. It also looks like it has one shock mounting to the front of the axle
and one to the rear.
BUT the ratio is 3.09. Is this strange or not. Is it from an autobox and if so am I fooked. I'm dressing it all up at the moment wondering what
to do. I'm also wondering if I could change the halfshafts and axle tubes into an english case to give me any ratio I want.
OK I did a search and it looks like a 3ltr capri (but not LSD )
So if I go with it what box should i fit. I'm looking for no more than 100mph but quite a bit of point and squirt power.
|
|
|
|
|
Volvorsport
|
| posted on 27/12/05 at 02:00 PM |
|
|
if youve got a dogleg BMW box that would work nicely with it , otherwise , its going to have very tall gearing
www.dbsmotorsport.co.uk
getting dirty under a bus
|
|
|
stevebubs
|
| posted on 27/12/05 at 03:01 PM |
|
|
Sell it to a BEC builder and get a higher ratio!!!
|
|
|
omega 24 v6
|
| posted on 27/12/05 at 05:11 PM |
|
|
What about a 4 speed box?
|
|
|
NS Dev
|
| posted on 27/12/05 at 05:36 PM |
|
|
Omega, first off let me apologise for not getting back to you re. the boreham book!! I have realised two things, one you need over 25 pages to cover
everything and all the important details are spread everywhere!
Next, 3.09 is the std capri 2.8i/3.0 cwp. Not at all uncommon, I have a pile of them waiting to scrap!!!
If the BEC folks want them then maybe I'm glad I never scrapped them!!!!
I have pulled them out to put 4.63 and 5.1 cwps in for rally cars
|
|
|
NS Dev
|
| posted on 27/12/05 at 05:42 PM |
|
|
ok just read your whole post, keep the axle if you want, loads of ratios available, 4.6 is the cheapest and most common useful one, look to pay £100
ish s/h or £160 new for a cwp set.
3.08 is fitted as std with a lsd in the capri 2.8i special and brooklands, but was only an option on the lesser models. all my lsd ones came from
brooklands models breaking. Complete lsd std axles fetch over £400 now.
For point and squirt power with a car engine and 7000rpm ish available you want around 4.0:1 ish. 3.9 or 4.1 are available for the english axle but
not the atlas afaik.
The best bet might be a std 2.0/1.6 capri cwp at 3.75:1.
|
|
|
omega 24 v6
|
| posted on 27/12/05 at 07:30 PM |
|
|
NS Dev I've only just seen the inside of the Atlas for the first time today. I have not stripped it but wondered if the carrier bearings were
shimmed to give the cwp clearances. Or is the pinion shimmed If there is to much info to sort out in the bible woul it help if I sent a disc and
return postage/packaging to you and perhaps you could scan it to disc? If it's to difficult / time consuming I understand.
I keep thinking that this axle and its gearbox/engine combination was in a car that weighed around a ton and was very quick in its day. Everyone says
the type9 box is low geared in first so I might just go with it just now for the sake of building the car and getting the tunnel etc set up and change
the cwp as and when one comes up. The axle case itself has really thick tubes on it and looks very substantial.
|
|
|
NS Dev
|
| posted on 28/12/05 at 10:39 AM |
|
|
Can you wait until 3/4th Jan?
If you can, I'll photocopy all the pages at work and post them to you!
The second point that I then forgot to put in the post above is that my scanner is also broken!!
The atlas is a VERY strong axle, certainly much more than enough for a seven. That is the only problem, it's a bit heavy!
Re. the shimming, you set the total carrier shim thickness to achieve the correct bearing preload, then move the carrier shims from one side to the
other AND shim the pinion to set the correct mesh.
It is a bit of a pig to do to he honest, as pulling the bearings off is not easy without destroying them, unless you buy ford special tools!
There are special tools normally used to set the pinion shim thickness, and then normally the carrier is adjusted to match the pinion, but the tools
consist of a "dummy pinion" and "gauge bar" which I certainly don't have and I guess you don't either!
|
|
|
