Unique Autosports - Project Zed Race Car

Measuring spring rates and testing dual springs set up.
For less drag and added down force we have been making a mould in Malemine which will then be made in Kevlar with 5mm sandwich foam. We've had to reinforce the frame of the front bar with alloy and make Chrome Molly braces to support the added load of the under tray and front splitter.
We've been working with a motor sport engineer, taking camber and toe angle measurements every 5mm of travel front and rear. We then plotted it on a graph to show us what the car is doing whilst diving under brakes, squatting under acceleration and compressing whilst cornering. Measurements are taken from the bottom of the wheel to the bottom of the guard. We are working on improving the toe change or bump steer in the front by changing the height of the steering rack as well as other parts of the geometry of the suspension. We have been plotting suspension travel and making changes to improve traction by changing the geometry of rear end. This was done by relocating the leading lower control arm bracket on the rear cradle to be the same as an S15, R33 or R34 (Pic 1) compared to the Z32 (Pic 2). Stronger brackets were used with Chrome Molly brace for added strength. For Rear Toe and Camber Settings Click Here For Front Toe and Camber Settings Click Here	Pic 1. Pic 2. Pic 3. Pic 4. Pic 5.
We measured bump steer with a board we made for measuring bump steer ie toe change with suspension travel . We replaced the factory ball joint type steering rack end with rod end type and using spacers on a custom pin. With trial and error spacing we managed to reduce toe change from full compression to full droop to less than one millimetre change.
Changed to a new Turbo Smart Pro regulator after finding the diaphragm disintegrating in a Magnafuel regulator. Turbo Smart regulator has the best race fuel resistant material on the market for fuel regulators.
Rear brake and diff ducting, as well as new water Methanol high pressure pump.
Front ducting and air deflector for brake cooling.

Undertray and splitter with stainless alloy quick release supports.
Testing different springs and plotting the graph at Eibach with different spring rates. We are trialing some strong tender springs which collapse under load with aero down force of approx 100kg, i.e. good for absorbing initial shock under hard acceleration in 2nd and 3rd gears to help prevent oversteer in tight low speed turns, then as they are collapsed at high speed it is if they are not there and stable so best of both worlds. We will be testing at these at the track though.