What spring rates are best for the Sole Track use

[Jamez]

At the moment I am building a E30 with a S50B32, this car will never see the open road and only be used on the track, the only surface it will see is nice flat tarmac. Taking into account it is completely gutted, has a rollcage and has a bit of extra weight up front (because of the engine swap), What spring rates should I use? Also What size of anti roll bar's should I use?

thanks in advance

[UweM3]

what shocks are you going to run? You need a matching spring/shock combo

[Jamez]

going to use fully adjustable Koni's or Bilstiens, if they are adjustable it should not matter, no?

im am also going to be getting coilovers

[Black_Potato]

No such thing as optimal, depends on loads of variables such as track, weather, driving style, general suspension set, tyres etc etc...

That said GAZ supply 600/300 as the default on their coil overs for 6 cylinder engine & probably wouldnt be a bad place to start.

[Jamez]

yeah few people have said either 600/300 or 350/550, think i'll end up starting with 600/300 and see how that goes.

[UweM3]

yeah few people have said either 600/300 or 350/550, think i'll end up starting with 600/300 and see how that goes.

600/300? but not with Koni or Bilstein shocks.