Rear end help...

kiwicar · Post by **kiwicar** » Tue Oct 30, 2012 11:05 am

Hi
Have you had a look on eurodragster recently, http://www.eurodragster.com/classifieds ... category=9 there is a lot that should be of interest to you on there at the moment.
Best regards
Mike

chodjinn · Post by **chodjinn** » Tue Oct 30, 2012 1:01 pm

SD1 axels are pretty easy to convert to discs from drums, I'm running a pair of Sierra Cosworth calipers on the rear with built in cable handbrake - they are available off most sierras/granadas.

I would not recommend you plan to start with a RV8 then Chevy, stick to one and go with it, for ease and expense reasons if nothing else!

minorv8 · Post by **minorv8** » Tue Oct 30, 2012 6:53 pm

If you seriously want that 500 hp then forget the Rover and go directly to SBC. I would but invested too much in Rover parts. There is no market for performance Rover parts where I live so I am pretty much committed to sticking with RV8.

DaveEFI · Post by **DaveEFI** » Tue Oct 30, 2012 11:02 pm

chodjinn wrote:SD1 axels are pretty easy to convert to discs from drums, I'm running a pair of Sierra Cosworth calipers on the rear with built in cable handbrake - they are available off most sierras/granadas.

I would not recommend you plan to start with a RV8 then Chevy, stick to one and go with it, for ease and expense reasons if nothing else!

What discs did you use? Presumably vented if for Cosworth callipers?

stevieturbo · Post by **stevieturbo** » Tue Oct 30, 2012 11:33 pm

Only 4wd cossies had vented rear discs.

Just use whatever discs fit best.

DaveEFI · Post by **DaveEFI** » Wed Oct 31, 2012 12:13 am

stevieturbo wrote:Only 4wd cossies had vented rear discs.

Just use whatever discs fit best.

Trouble is there are millions out there. Most of which won't clear the SD1 hub.

kiwicar · Post by **kiwicar** » Wed Oct 31, 2012 11:52 am

I say it again. . . if you are going for 500 bhp then have a look on eurodragster, there is now a 9" ford at a very good price, it would cost about £700 to get it shortened and a diff put in it but that is still very cheep for what is there, and you would get back £100 for the shafts and £75 for the spool, flipin' bargin!
Best regards
Mike

stevieturbo · Post by **stevieturbo** » Wed Oct 31, 2012 2:48 pm

DaveEFI wrote:
stevieturbo wrote:Only 4wd cossies had vented rear discs.

Just use whatever discs fit best.
Trouble is there are millions out there. Most of which won't clear the SD1 hub.

Adapt and overcome

DaveEFI · Post by **DaveEFI** » Wed Oct 31, 2012 3:56 pm

stevieturbo wrote:
DaveEFI wrote:
stevieturbo wrote:Only 4wd cossies had vented rear discs.

Just use whatever discs fit best.
Trouble is there are millions out there. Most of which won't clear the SD1 hub.
Adapt and overcome

I have done. Just wondered what others had used. Many seem to use 800 discs which are solid and require the half shaft flange machining as well as new stud etc holes.

stevieturbo · Post by **stevieturbo** » Wed Oct 31, 2012 7:32 pm

Ive no idea what an SD1 hub looks like, so cant comment.

But it's a live axle, most are very similar. It really cant be that difficult to select a disc that will work.

DaveEFI · Post by **DaveEFI** » Wed Oct 31, 2012 11:00 pm

stevieturbo wrote:Ive no idea what an SD1 hub looks like, so cant comment.

But it's a live axle, most are very similar. It really cant be that difficult to select a disc that will work.

I'm sure it's easy enough if you have a machine shop at your disposal.
My requirements were being able to change back to standard if needed, and as little disc modification as possible. Discs don't last forever.

stevieturbo · Post by **stevieturbo** » Wed Oct 31, 2012 11:13 pm

DaveEFI wrote:
stevieturbo wrote:Ive no idea what an SD1 hub looks like, so cant comment.

But it's a live axle, most are very similar. It really cant be that difficult to select a disc that will work.
I'm sure it's easy enough if you have a machine shop at your disposal.
My requirements were being able to change back to standard if needed, and as little disc modification as possible. Discs don't last forever.

I certainly dont have a machine shop at my disposal. In fact getting things machined reliably here is a nightmare !

But some planning and thought goes a long way into making most things happen.

DaveEFI · Post by **DaveEFI** » Thu Nov 01, 2012 12:36 am

stevieturbo wrote:
DaveEFI wrote:
stevieturbo wrote:Ive no idea what an SD1 hub looks like, so cant comment.

But it's a live axle, most are very similar. It really cant be that difficult to select a disc that will work.
I'm sure it's easy enough if you have a machine shop at your disposal.
My requirements were being able to change back to standard if needed, and as little disc modification as possible. Discs don't last forever.
I certainly dont have a machine shop at my disposal. In fact getting things machined reliably here is a nightmare !

But some planning and thought goes a long way into making most things happen.

Quite. However, your replies do sound rather like Clarkson saying "how difficult can it be"

stevieturbo · Post by **stevieturbo** » Thu Nov 01, 2012 11:12 am

TBH fitting rear discs is pretty easy. Apart from getting a Wilwood bell blank machined, which I couldnt do myself.

The only other tools I needed to fit discs to my axle was, drill and angle grinder.
Certainly nothing there beyond the reach of most DIY enthusiasts.

So really...it isnt that difficult.

The most awkward part I can think of is sourcing a handbrake cable of suitable length.
A Sierra one was as close as it needed to be for mine.

DaveEFI · Post by **DaveEFI** » Thu Nov 01, 2012 2:00 pm

Ah. Most SD1 rear disc conversions use modified stock discs - not racing parts. To keep costs sort of half reasonable. When I looked at it, racing discs and adaptors would have cost about £400 including the necessary machining, before even thinking about callipers and brackets.