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Some more camber in the front with shims and possibly a little toe out in front, like 5-6 minutes, whatever that turns into in inches. That equals just 6/60 or .1 degree. Not very much, but it does make some difference while at the track.
BGB, who's set up a few of these chassis , recommends 1mm/side OUT on the front and 2mm/side IN for the rear and that jives pretty close to how I set up my 986 and 981 over the years. I also like .5 more camber in the front than the rear on this chassis so my target will be -2.0 front and -1.5 rear camber. I may go up to -1.8 rear but I like the car a tad loose so -1.5 is usually a good aggressive street setup.
BGB, who's set up a few of these chassis , recommends 1mm/side OUT on the front and 2mm/side IN for the rear and that jives pretty close to how I set up my 986 and 981 over the years. I also like .5 more camber in the front than the rear on this chassis so my target will be -2.0 front and -1.5 rear camber. I may go up to -1.8 rear but I like the car a tad loose so -1.5 is usually a good aggressive street setup.
Close to my current setup, 1.17mm/side OUT for the front and 1.57mm/side IN at the rear for toe
Have you tried 0mm front so you can compare -2mm vs 0? I have 0mm right now...
No, this change was from stock which I found wandered all over the road at highway speed, this now has a very nice on center feel and on the back roads perfect!
These settings were based on what BGB suggested in a different thread and my local suspension specialist.
I have -2° front camber (16mm shims for each side) and 0 toe. Rear is -1°30' and +1.5mm each side. It feels good but turn in not so responsive versus stock and sometimes I feel understeer or front axle being "light", maybe there is too much caster (more than +10° with all those shims) or front tires over-inflated. Sway bars middle/middle.
I might try -1.5mm or -2mm total front toe and play with sway bars.
Last edited by SpyderLegend; 02-26-2021 at 03:16 PM.
I have -2° front camber (16mm shims for each side) and 0 toe. Rear is -1°30' and +1.5mm each side. It feels good but turn in not so responsive versus stock and sometimes I feel understeer or front axle being "light", maybe there is too much caster (more than +10° with all those shims) or front tires over-inflated. Sway bars middle/middle. I might try -1.5mm or -2mm total front toe and play with sway bars.
I find the steering much more responsive than stock with turn in and balance front to rear to be perfect, no understeer that I can detect on the street and when pushed on my favorite back roads, just solid and planted.
You have a very low caster at +8.7°, stock was +9.5° on mine and now is +10.1°... dunno what is better but they should behave very differently just for this reason.
At +8.7° your front wheels should be pushed back, mine are pushed forward from the center. Could you take a picture? This is mine at +10°
Last edited by SpyderLegend; 02-26-2021 at 03:46 PM.
You have a very low caster at +8.7°, stock was +9.5° on mine and now is +10.1°... dunno what is better but they should behave very differently just for this reason.
At +8.7° your front wheels should be pushed back, mine are pushed forward from the center.
Am I misreading the chart, the range as specified for the 718 GT4/Spyder being = +7.8-8.8 degrees ?
I cannot answer at your question... maybe different machines read different caster. I am sure mine was +9.5° stock, with wheel in the center. Now at +10.1° is pushed forward. Instead of checking the value I would check the wheel in the fender.
I cannot answer at your question... maybe different machines read different caster. I am sure mine was +9.5° stock, with wheel in the center. Now at +10.1° is pushed forward. Instead of checking the value I would check the wheel in the fender.
Here is mine, just snapped this picture... remember we installed caster pucks to correct the wheel position and keep it centered.
02-26-2021, 02:50 AM
, recommends 1mm/side OUT on the front and 2mm/side IN for the rear and that jives pretty close to how I set up my 986 and 981 over the years. I also like .5 more camber in the front than the rear on this chassis so my target will be -2.0 front and -1.5 rear camber. I may go up to -1.8 rear but I like the car a tad loose so -1.5 is usually a good aggressive street setup.
