Jim, just to add to the benchmark:

my DC2 VTiR managed a 1:14.9 (transponder timed) with 'just chassis mods' and a set of 4-1 headers on R tyres... did some 1:15's and several 1:16's quite comfortably

well - the mods were Cusco coilovers (12k/8k), whiteline 24mm rear swaybar, ITR brakes, no strutbraces, no alignment mods, no chassis braces, no air intake mods (stock filter), 2.5 year old Proxis RA1 tyres...

your EK would be quicker with harder springs i reckon