Grahamb's Mk1 Fiesta XR2 Duratec HE Hillclimber

[team_zi]

Re: My Mk1 Fiesta XR2

Fitted the Kustom rear arms, having removed the rear hubs to fit the wheel studs.







Saved 1.7Kg in weight. The new arms weigh a combined 628grammes, and the TAS arms weighed in at 2.37Kg. Alloy panhard rod to follow.

Hubs will be drilled 12.5mm so the wheel studs can be fitted.

I found the rear wheel speed sensor had melted, from the heat build up on the rear disks. Time to have a rethink about its position and the position of the others for the ECU. (one on each wheel)

[team_zi]

Re: My Mk1 Fiesta XR2

Dropped the rear hubs off at Altiss, and they'll be modified on the milling machine to ensure the PCD is maintained and they're at right angles to the hub. Not something I can do with my trusty Bosch.

Altiss had a 9.3L V8 in the workshop, twin turbo, will be producing 3000 BHP! Sitting in a lovely Buick? street legal Dragster. The heads were off and the cylinders were mahoosive.

[Kee]

Re: My Mk1 Fiesta XR2

not this is it?

[team_zi]

Re: My Mk1 Fiesta XR2

No, but I have seen that at Mallory Park, at the Retro Car show. What a monster!

Both my rear hubs cracked whilst being worked on so I need to look for alternatives now. I'm using Mk1 drums, which are turned down to form hubs, but being cast iron, are not the strongest basis for a hub (as we've just discovered).

Am now looking at taking my spare rear axle, cutting off the stub axles, and fitting either Focus or Fiesta Mk3 stub axles which are bolt-on. The idea is to use steel hubs, and I know the Focus comes with these, but not sure about the Fiesta. I'd prefer the Fiesta solution as the stub axles are less bulky and therefore lighter than the Focus parts.

I'll also change the rear calipers from Granny/Cosworth Sierra rears, to Golf calipers, as together with the brackets, it'll make a far lighter setup.

[team_zi]

Re: My Mk1 Fiesta XR2

Got myself some Focus rear stubs/hubs/calipers, 2nd hand, and these will be fitted to my spare 'new' axle which I was keeping for a rainy day. Camber plates will used between the stub axles and the Fiesta axle, to adjust camber on the rear wheels.

Removed all the remaining wiring from inside the car last night, as well as the battery isolater switch, and the grp battery box. Looking rather bare now, but at least I can start on the layout of the new fuse/relay control box and other bits and pieces.

[team_zi]

Re: My Mk1 Fiesta XR2

The Focus parts have just arrived
I'll get the spare axle and bits over to RPV asap

[dangerousdave]

Re: My Mk1 Fiesta XR2

Glad to hear you good to go with the focus setup, makes a lot more sense than relying on the modified drums Is the stub axle part of the rear axle then on these? If so will be nice and easy to just replace them with the plates like a focus has

[team_zi]

Re: My Mk1 Fiesta XR2

Glad to hear you good to go with the focus setup, makes a lot more sense than relying on the modified drums Is the stub axle part of the rear axle then on these? If so will be nice and easy to just replace them with the plates like a focus has

The Fiesta axle needs to have the stub axles cut off, and then the existing back plate modified for the Focus stub axles to simply 'bolt on'. I can then fit spacers, and camber shims to get the camber adjusted.



Also thinking about making the axle lighter. Maybe replacing the centre section with some aluminium tubing. Any thoughts. I dont run a handbrake, and the panhard rod mounting will be retained on the steel S section of the axle.

[STEVE H]

Re: My Mk1 Fiesta XR2

I thought you would of had coil overs on the rear,then you could cut the spring cups off.

[team_zi]

Re: My Mk1 Fiesta XR2

Coilies on the Fiesta requires some other means of locating the rear axle to prevent it from rocking back/forth, which itself increases weight. Not sure, but I dont think any coil overs exist that fit and locate on the existing mounting points to do the same job as the originals.

[team_zi]

Re: My Mk1 Fiesta XR2

Shudder - rust. The end product will look a lot better.

[STEVE H]

Re: My Mk1 Fiesta XR2

Grahamb,
I have coilovers on the rear of rally car and they still mount to same place as the std dampers do and with no body mods ,just have to machine up a special top spring cup. i used a set of front bilsteins and put and extra piece on the bottom to use the normal damper bush.
I you want i can send you a pic of what i have done

[team_zi]

Re: My Mk1 Fiesta XR2

Grahamb,
I have coilovers on the rear of rally car and they still mount to same place as the std dampers do and with no body mods ,just have to machine up a special top spring cup. i used a set of front bilsteins and put and extra piece on the bottom to use the normal damper bush.
I you want i can send you a pic of what i have done

Yes please Steve

[STEVE H]

Re: My Mk1 Fiesta XR2

Here are those pictures of the rear coilovers you wanted

[team_zi]

Re: My Mk1 Fiesta XR2

Clever idea. So what does relocating the sprung weight from the reinforced floor, to the top of the unreinforced rear wheel arch do to the shell? Have you had to use different mountings at the top of the rear struts?