i've just had work completed on my V6 GT (NB: i live in australia). since owning as-new (demo model) from August '06 i've loved the car to bits. it's just completed 10K km's, so it was in for a routine service. on top of this, i arranged for:
1. fitment of Q2 Torsen limited slip differential
2. modifying the front KONI Sport dampers to lower the rideheight
3. front wheel alignment: neutral toe
a bit of background first: immediately after taking delivery of the car i had fitted Eibach Pro Kit springs and KONI Sport dampers. this greatly improved the ride quality and handling; no longer did it 'crash' into potholes and over ridges, but cushioned the bumps and provided a firm but controlled ride.
however, the front springs did not lower the car at all - unless you call 1mm 'lowered'! others have had similar experiences with the V6 GT and Eibach springs. it just must be how it is, unfortunately. yet, the rear dropped by around 35mm. the result was an unsightly air gap above the front wheel which was bothering me
rather than go to the expense of coilovers (let alone wasting the money on the Eibach-KONI combo) my service guy said he could have the front KONI's modified. this involved altering the lower attachment point of the damper with the suspension fork; raising this point has the effect of 'compressing' the suspension, similar to shortening the damper. though there is no loss in damper-travel. it was also a better approach to cutting or pressing the springs.
so, the dampers were removed from the car and sent to Toperformance, the australian distributor for KONI, who performed the mods. unfortunately i never got to see the modifications before refitment, so i've no photos of the altered dampers.
refitted, the front now sits 13mm lower than beforehand. this is quite noticable - to me anyway! - and a significant improvement. whilst it's not quite the 20mm i was aiming for, i am pleased with the results.
the Q2 diff has made a big improvement to power-down and handling. whilst i've not yet exploited its full potential, the benefits are apparent. along one highspeed S-bend, i found the car turning-in much more aggressively, as if on rails; in comparison, the previous setup felt like understeer (and no doubt was) through these same bends. much more sure-footed, and much more 'it just goes where you point it'.
i highly recommend this upgrade if you have the $$, and certainly to those who unfortunately blow their original diff.
a front-wheel alignment helped too. factory-spec stipulates toe-out at the front, 1.2mm each wheel (total 2.4mm toe-out). this aides stability and minimises bump-steer/torque-steer, particularly with powerful FWD cars. but now i have zero toe - neutral. this helps with turn-in, and together with the Q2 it's now a very fun drive.
to date, details of the car include:
*2004-build 3.2L V6 GT, Australian-spec (incl winter-pack, climate-pack, xenons, rear parking sensors...all as standard)
*Kyalami Black + red leather interior
*Eibach Pro Kit springs
*KONI Sport adjustable dampers, modified front
*ATP Tecnoforming 19x8.5" wheels (built to spec with 5x98mm PCD, 58.1mm centre bore, +35mm offset)
*Toyo Proxes4 225/35 tyres
*minor cosmetic changes: clear front repeaters, smoked side repeaters, debadged (of boot 'GT', side 'Bertone')
*machine + hand polished: Menzerna 106FF polish, Meguiar's NXT Gen Tech Wax, Pinnacle Souveran wax
*custom number plate
on to the photos...
front Eibach-KONI setup before modification
(note the lower bolt holes which were modified)
before : after
(WARNING: largish files) (4th pic shows measurement from ground to wheelarch as comparison)
(WARNING: largish files) (4th pic shows Pinnacle Souveran wax - great for black paint)