I would like to get coilover suspension for my car, what brand is the best if I want to use it on track? Where would be the best place to get it?
Thanks

 

Welcome to forum.

You have to ask yourself.

What do you use the coilover for? Is that your track car and will not be on the road.

If it is NOT your daily drive. I will advice you to get some racing struts. 50mm or better.

JDM wise: Quantum, Aragosta, and Tein Super Racing (due in May) are great.
Bilstein is too soft or racing use.

For road/street - HKS Hypermax II and Tein Flex will be good enough. Other brand like Bilstein, and Ohlins are good.

My 2c. I use Tein Flex atm but I want to upgrade to Super Racing when I had more fun with the setup.

Do not get just spring or Tein Basic or Super Street - they are just too soft and you better off using stock. MazdaSpeed is fun but I have no info on their adjustable coilover.

Some local advice has to be seeked as well.

 

How are the HKS Hypermax II handling road bumps? Does the car go jump around or over responsive with the steering wheel?

 

unless you want a real racing coilover setup your question would be better posed in the Suspension forum

 

I thought it is the "racing" section. But anyway.

Hypermax can handle Australian road it can handle anywhere. Damper rate can be adjusted to address the bump issue.

Cheers
Taka

 

Thanks tak but australian are very good compared to my country's but I suppose the adjustable damper will be helpful.

 

Can I invite you down under - perheps it will change your mind.

 

It all depends on the dampening. I live in L.A. king of pot holes and speed bumps and have mine set at a conservatively stiff setting, i don't have any problems jumping around. The steering is very responsive as well.

 

How about D2 racing sport coilover?

 

im looking at the Tein Basic right now. I plan on using the car mostly for street use and some occasional track days. I was originally thinking about the Mazdaspeed springs/shocks, but would that be too soft? The spring rates on the tein basic are much higher, and probably wont compromise ride by too much.

 

I RACE grand-am cup
I have special JIC for road racing

 

for street and occasional track. my two cents lean to the Tein type flex. i have it. its not too punishing on the road and its good for the occasional track days. if ur gonna go a half and half (which is what im doing) look into type flex.

word of advice, spend the extra 400 bucks and get the EDFC. i can control the damping force to 32 diff settings from inside the cockpit over my lcd screen'd controller that sits on top of my steering wheel cover.

its a great street/road course setup.




if u just want pure race....see another coilover, but for both, type flex is great


edit, for research, the type flex spring rates are 500 lb/ inch front and 390 lb/ inch rear. anything much higher/ lower than that might be too improper for street/ race setups respectively. compare in that region of rates

 

look at the spring rate. Generally speaking, 7 kg/mm and lower is for street & auto cross, 13 kg/mm-8 kg/mm is for weekend warrior still streetable but a little stiff. 14 kg/mm and above is only for track only.

 

What are stock spring rates? I'm looking for a good daily drive/autocross compromise setup. I autocross the girlfriend's 00 S2000 and I need something similar as far as stiffness and body roll minimization.

Does everyone feel that the stock spring rates are too low for autocross or are the stock springs ok with a set of koni yellows and some swaybars?

 

Stock RX8 6spd
F 155.61 lb/in
R 112.86 lb/in
1.05” (27mm) x .134” wall thickness front bar
0.632” (16mm) x .097” wall thickness rear bar


It is known that the '00 &'01 S2Ks have the following:
Front bar (diameter/ thickness in mm): 28.2 / 5.0
Rear bar (diameter/ thickness in mm): 27.2 / 5.3
Front spring rate:3.9kg/mm (218 in/lbs )
Rear spring rate:5.2kg/mm (291 in/lbs)


I think you need the mazdaspeed spring, shock & sways just to hang with your s2k