Currently I have Megan Racing "street" coilovers, a Mugen front sway bar and an AP1 rear sway bar. The car handles well enough on the track, but could be better.

The Megan coilover spring rates are 10kg/mm front and rear I believe, and the sway bars are 31.8mm in the front and 27.2mm for the rear.

I'm wanting to change my set up a little. I'm looking at the Tein Mono Flexs and the Eibach sway bars. You can get the Teins in any combo of 10, 12, or 14 kg/mm, and the bars are 32mm in the front and 29mm in the rear.

I need some help deciding what would be a good set up. What spring rates should I go with? Should I look at squaring them if I get the Eibach bars? Should I go 12kg/mm front and 10kg/mm rear and go with squared bars (i.e. Tanabes)? Maybe get Cusco bars?

So many options... Just looking for advice.

Thanks.

 

I say, get some different COs, whether that be the Tein monoflexes or some other brand, or maybe even the SRC, and leave your current sways... for now.

Run it with whatever new set of COs you get, adjust from there, and see what you like, don't like. If you can't dial in the handling of the car from there (by adjusting your COs), then swap out the sways. I really don't think it's necessary to swap both at once.

With the exception of Auto-x, I think less stiff sway bars are "generally" preferable when coil overs are thrown into the mix of options. Many people have said that overly thick/stiff sway bars make the car less predictable at the limit - that, and it reduces the ability of your suspension to act independently if you get overly stiff bars (think leaf spring/torsion bar suspension). I might be wrong about this last part, but I say swap out your COs first and leave your current sways for now.

I'm thinking that, if whatever extra money you've set aside for a new set of sways you put into your CO budget and get some "higher" end COs, it'll be better than if you'd spent the money on some new sways...

I think that one of the big reasons for people using sways (other than them being an overall cheap mod) as well, is that they generally don't count much for points when placing the car in classes or don't count at all, vs. varying coil over setups both with/without reserviors that count a lot towards total points. I know stock stock class auto-x allows modification of the front sway bar, and that's pretty much it.

 

try Tein SRC's with 16k springs and rip the rear sway off.

 

i've got the monoflex in 14/12 kg with a saner bar up front and no rear bar. It was pretty twitchy with the stock rear bar.

 

I think you may need to post up more info if you want better recommendations.

Tires, wheel specs, purpose (track/autox), and what you're trying to tune out now. Are you understeering or oversteering? What do you want more of?

 

Megan racing coilovers, spring rates are 10kg/mm front and rear I believe, and the sway bars are a Mugen 31.8mm in the front and an AP1 27.2mm for the rear. I run TE37s, 17 x 7.5 +48 in the front and 17 x 9 + 50 in the rear wrapped in Bridgestone RE11s. 225/45 and 255/40 respectivly.

I autox and track at least twice a month. I'm not really trying to tune out anything. I just want to get a better set up and to make the car feel more planted and able to take corners at higher speeds.

I don't want to get mis matched spring rates and bars, so I figured I'd ask around to get more insight.

 

If you like the balance as it is right now, and your spring rates are the same front and rear, then I would suggest leaving your sway bars and getting coilovers with matching rates like you have now.

 

That's what I'm leaning towards so far.

Why would tein offer them in a standard of 12/10? Is that how most coilovers are set up? How about higher end ones like moton or bilsteins or kws, how are they set up? Like the Teins?

 

up.

 

Higher end coils often let the buyer choose the springrate.