suspention help

Suspension, chassis tuning, brakes, alignment
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Savages911
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suspention help

Postby Savages911 » Sun Sep 30, 2012 6:55 pm

I have a friend suggesting I get koni ground control. what do u guys think?
he thinks i should get a 300/300 spring rate.

the reason why im getting new suspension is because i want to lower the car an inch but not sacrifice ride.
what spring rate would u guys suggest?
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Re: suspention help

Postby Twibs415 » Sun Sep 30, 2012 10:31 pm

usually miatas get setup with offset spring rates. A popular setup is 450 front 300 rear good for street cars
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Re: suspention help

Postby Nikwit » Sun Sep 30, 2012 11:09 pm

Bilstein PSS9 is about the only Miata setup to use equal rates front and rear. It CAN work, but the car is about 51% front weight, and the front and rear have different jobs to do. Given how ridiculously high and soft your car is now, even something like a 300 front weight would be a big improvement, and still be nice and soft (assuming you get the correct shocks to match).
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Re: suspention help

Postby Savages911 » Mon Oct 01, 2012 12:45 pm

Wouldn't a rate of 450 be pretty stiff?

Nik any suggestions? All I was told was to talk to a friend I knew from awhile back about ordering some koni ground control coil overs

Anyone mind if I take a ride in their car to get a feel of their suspension?
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Re: suspention help

Postby Nikwit » Mon Oct 01, 2012 7:12 pm

I skipped over the spring/shock stage and went straight to coilovers, so I'm not sure what's out there and what's good. I think that if you run GC, you can pretty much get any spring rate you want, yes? IMO, the shock valving is more important for ride quality. Both brkinshiz and I had very similar spring rates (550 front, 350-400 rear), yet mine has a much firmer ride than his did. I think something in the 300 range would be fine for you, just do your research on the shocks before you buy.
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Re: suspention help

Postby Savages911 » Wed Oct 03, 2012 12:21 pm

Tien as or koni?
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Re: suspention help

Postby porsche911rpg » Thu Nov 01, 2012 12:50 am

GC 440 F & 275 R.Not to stiff w/Bilsteins.Handles great.
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Re: suspention help

Postby cxracer » Sat Dec 08, 2012 9:24 am

Check out flying miata's website regarding the spring rates they use and why. They give a good write up on why stiffer springs can actually give a more forgiving ride.

And yes, the dampers really are the key to a smooth ride. I think my FCM Bilstiens have something like 600lb springs in the front and the car now has the most comfortable ride of all the shock and spring combos I've tried up until this point.

It really comes down to getting a shock that is capable of controlling a stiff spring. Miatas has so little travel that they need stiff springs to keep from blowing through it and landing on the bump stops all the time. Speaking of which get some FCM bump stops and that will help to smooth things out a bit at full travel.
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Re: suspention help

Postby unnerv » Sat Dec 08, 2012 12:01 pm

I have Fatcat's that were setup at 500 front 375 rear (RB tubular sway in front and no rear swaybar) and it is a much less jarring ride than the stock Mazdaspeed setup. Shaik explained to me that because the shocks were properly setup to dampen those weights it was a better ride because you had control and spent less time hitting the bumpstops...actually what he said was much more complicated than that...but that is what I understood of it. Regardless, it works awesome. If you come out to the millbrae or san mateo meets hit, me up and I'll take you for a ride.
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Re: suspention help

Postby Savages911 » Sat Dec 08, 2012 4:46 pm

thanks for the help guys. ended up getting the tien flex. loving them!

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