Montag, 17. April 2017

3. Uprated front suspension

The front suspension of the Marcos Mantula was taken from the GT6 or Vitesse.
A lot more power of the Rover V8 , wider wheels and semi slicks are forcing the front suspension much more.
Some tuners offer impoved kits even for the Mantula.
Canly Classics and Spyderworks are the ones I know...

I already use the upper wishbones from Spydercars with rose joints from McGill Motorsport. Mounted them out of the box - everything fits. Only the price from Spydercars is what did not fit...

Canly Classics offers a upright without the trunnion, a hub made of aluminium and a reinforced axle with bigger bearings. Sounds good, looks good and price is OK.

I was lucky cause they are not always on stock, but I got them 2 weeks later. Some explenations how to install come with the parts. Good to know.
Behind the new one, in front the old one.

So I started to install everything.
To make it short, there are a lot of parts I had to modify until they fit together and although fit to the Mantula speciales.
- Mill a flat plane to the upper screw for fitting the steering lever
    --> see red arrow
- Shorten the cone of the axle on a lathe to allow the big nut to pull it into the upright
    --> see blue arrow
- Reduce the outer diameter of the hub next to the upright to have a clerance to the screw heads.
   It was noted by Canlys, that for the Ford PDC there has to be done some adjustments.
   --> see green arrow
- Shorten the spacer behind the crown nut to have enough room for a splint.
   --> no arrow...
No room for a splint...
See the screw heads blocking the hub
The hub on the lathe


With all this mods it fit perfectly and looks much more stable than the old GT6 lump.

My Mantula has installed the Anti Bump Steer kit. There are welded below the original brackets for the lower wishbones additional ones. I mounted the old bushings (the new ones are PUR) to improve the stiffness of the brackets. 
Maybe its only good for my mind, but... it will not harm anything...

Here a short view on the complete setup with the brake cooling installed.
More about it in another post...