Old Jun 5, 2021 | 10:04 PM
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CCS
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Joined: Nov 2020
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From: Essex
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Brought some wilwood 4 pot powerlite calipers, I'm going to attempt to tackle the brakes in time depends on if the machined parts in time. Using vented XR2 240mm discs for now as at some point im going to put on escortmk5/6 gear in the future or designing the knuckles in cad to suit escort mk5/6 MTX hubs with bigger bearings accordingly. They haven't arrived yet so I cad designed the adaptors from known measurements and have the 3D printer making them now so I can test fit them, before having them machined. Done some math of the PSI required for the brakes, due to limitations on the size diameter of the brake servo I'm going to get a mazda MX5 servo and master cylinder; it should produce sufficient pressure to have a good feeling brake while staying efficient and within the size limitations I have due to the bloody massive MTX box being in the way, 13 degree angle on the whole lot shot keep it out of the way (got the ratio from xr2 inside, numbers check out). Unhappy with the plastic manifold, it dosen't kick up close enough to the engine soon enough so whipping out the ally flange I had as a backup, worked out a way of spacing them, going to make a jig. Ally filler in the gaps and match the ports with the die grinder, then some 20mm straights at the end with a bead of ally around the ends for the original bike rubbers to clap solid too. They are great rubbers so going to use them. Was at a car show in Norwich today, and picked up some handy bits like some more beefy tie bars from another ford to cut the ends off of so I can reuse the original mounting hardware modified. The metal on my original tie rods is really iffy and brittle. Planned out the wiring loom and marked where things have got to go, tested out both of the ECUs I have; electronics side is all good and ready. Engine will be running at the end of the week even if I dont finish the new ally intake manifold, I can still use the plastic setup to my distaste (airfilter doesnt fit due to clearance, fack.)

In the event that I dont get the new brakes ready, I've modified the original servo mounting brackets to sit closer to the bulk at a 12-ish degree angle, this brings the servo backwards and upwards away from the hulking MTX75 box with a satisfactory amount of clearance without modifying the pedal range. Had a quick measure up of the drive shafts and a plan of attack on how to deal with the differing shaft diameters, a simple turn down to match the size of the original shafts to sleeve on a 10 inch tube (so 5 inches of the focus shaft turned down to the diameter of the fiesta shafts) should be more than strong enough for road use. If and when I replace the hubs with MTX spline'd hubs, custom shafts it will be. Mocking up measurements for a custom rollcage that will still allow me to use the back seats and not cut into the dashboard.

Not a lot of pictures as the past days have been lots of measuring, researching & spending money. So here is a picture of the manifold being planned, all of the fiddling about with the servo and master cylinder was a two person all hands job evolving some contortions to get the measurements, checking angles etc.
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So I'll cut the straights, tac them together to get the correct separation and then I can adjust the roll/yaw of the runners to line up; flatten the tops and tac the rest in place before blasting it all up. Words cannot describe how awkward these carbs are. I also went and tig'd up the middle (air ballance?) holes on the inlet side of the carbs, sorts out an issue with a dead-ish zone between mid-high revs on zetecs. My brother did the same thing on his 2.1L pinto sierra with good results so I'll do the same.


Last edited by CCS; Jun 5, 2021 at 10:14 PM.
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