CSG and RCE tag-team suspension Q&A thread! Ask us anything!

[ZionsWrath]

Going to go to first track day ever this year, planning on more. Going to run my stock tire until they burn up.

What think of everything else stock and

OEM camber bolts
Carbotech XP10
RBF 600

[Racecomp Engineering]

Originally Posted by Cjymiller

Gents, how does spring pre-load factor into ride quality?

Not as much as most think, unless it's a ton of preload (i.e. more than the corner weight).

- Andy

[Racecomp Engineering]

Originally Posted by ZionsWrath

Going to go to first track day ever this year, planning on more. Going to run my stock tire until they burn up.

What think of everything else stock and

OEM camber bolts
Carbotech XP10
RBF 600

Sounds good, have fun!

- Andy

[7thgear]

what's the magic behind WRC suspensions, seeming how the roads they travel on are actual roads, the level of grip these cars get is beyond my comprehension.

and why don't people immitate their setups and instead focus on touring style cars that wouldn't last a minute on country road.

[Wepeel]

Originally Posted by 7thgear

what's the magic behind WRC suspensions, seeming how the roads they travel on are actual roads, the level of grip these cars get is beyond my comprehension.

and why don't people immitate their setups and instead focus on touring style cars that wouldn't last a minute on country road.

I think damper travel and quality have a lot to do with it. I remember seeing pics of the coilovers when their working on the cars inbetween stages, and there is a lot of damper stroke.

The GD Impreza's had something like 8.5" of damper stroke on the rear struts. I seem to remember reading that for the GR chassis rally cars (same rear suspension as the BRZ - multilink), Subaru actually retrofitted struts in the rear. I wonder if I can find that source again.

[Racecomp Engineering]

Tons of travel, awesome dampers with lots of compression and not too much rebound. Lots of fluid capacity to reduce shock fade (and gas pressure helps).

- andy

[CSG Mike]

Originally Posted by 7thgear

what's the magic behind WRC suspensions, seeming how the roads they travel on are actual roads, the level of grip these cars get is beyond my comprehension.

and why don't people immitate their setups and instead focus on touring style cars that wouldn't last a minute on country road.

Their suspension does exactly what it's supposed to do: keep the tires in contact with the ground.

(Dirt) Rally suspension is made for compliance and are actually surprisingly soft. Tarmac Rally suspension is much closer to what you'd see on a track car.

Everything is adjusted to specifically meet the needs of a given stage.

[ZDan]

You'd probably be fine on XP8 pads and off-the-shelf DOT4 fluid. That's what I ran in the S2000, never any problems with pads or fluid over many track events.

Originally Posted by ZionsWrath

Going to go to first track day ever this year, planning on more. Going to run my stock tire until they burn up.

What think of everything else stock and

OEM camber bolts
Carbotech XP10
RBF 600

[7thgear]

so tarmac rally is really the thing everyone should be immitating

but no one is

what's up with that.

[Racecomp Engineering]

Originally Posted by 7thgear

so tarmac rally is really the thing everyone should be immitating

but no one is

what's up with that.

I told you....Bilsteins + RCE Yellows ain't a bad way to go on the cheap for a tarmac rally car!

- Andy

[7thgear]

Originally Posted by Racecomp Engineering

I told you....Bilsteins + RCE Yellows ain't a bad way to go on the cheap for a tarmac rally car!

- Andy

that's the plan

i'm just thinking outloud as to why this isn't common knowledge and why do i feel like i'm a minority in thinking all drivers shoudl strive to improve grip and compliance above looks and stiffness

[Wepeel]

Originally Posted by 7thgear

so tarmac rally is really the thing everyone should be immitating

but no one is

what's up with that.

Well, it might be because quality dampers that try to maximize travel are usually $$$$.

The higher level dampers seem to have more travel and obviously much better damping. And since most people are concerned with slamming the car (don't care about stroke) or optimizing the car for track/autocross (relatively smooth), it might not be as important.

[Racecomp Engineering]

Also, RCE Yellows sell quite well so maybe there is a lot of people with the same mindset. They're just not as vocal as those that want the car real low. And the Bilsteins only just came out.

Also, real rally coilovers are expensive.

- Andy

[fooddude]

B14 or B8+TarmacSprings...that is the question, hehe.

Which has more aggressive dampening (b14 or b8) and which has more aggressive springs (a large dynamic range 2.5-7kg progressive vs 5kg linear (which falls in between the B14's prog spring rates))?

I know both aren't crazy, aggressive, full blown, race-only suspension setups (far from it, I know) ...BUT, I prefer to get the more aggressive setup (even though if it's only marginal).