I am running koni yellows with 350/375, it rides smooth and im very low. No finger gap in the front and my rears are tucked. The ride is comfortable, but i feel like the fronts are too soft, idk if theyre bottoming when im going fast and i hit a bump. I have extended hats all around.
Is any one running 450 in the front? For those that are( and i know its hard to explain ride comfort) how comfy is it when youvhave passengers, like your gf/wife or others??

 

you wont notice the difference of bumping up the front spring rates if youre just comparing it to riding around town.

 

From what I recall, Koni yellows can handle a 600lb maximum spring rate.
450~500 is what I read most people using with the rebound adjust cranked nearly all the way up.
This would be with a 1~1-1/2" drop (without top hats).

Totally agree with Tyson - this isn't going to be something you notice just driving around.
Especially since it doesn't seem like you are having any problems to begin with.

Maybe it would help if you explained in detail what you mean be 'feeling soft'?
What other mods have you done with the front suspension?

 

Sometimes when i hit certain bumps or ridges or a pothole, it sounds violent. A violent thumping noise. This happened on my wifes wagon when i lowered it on some kyb agx with really soft springs, but it has an aftermarket uca and that arm was hitting the strut tower part. I fixed that issue by raising it and using a larger bump stop. As for this koni setup, i already have large bumpstops, and it has stock uca so idk if those are hitting or if the strut is slamming( which idk if it can happen with konis)
I do have the adjuster turned to stiffest, minus like a half turn. I just dont want to ruin the konis if i am bottoming out.

 

I'm running 600f 500r. Im happy with it. The rear can be jarring. Actually, the whole car is pretty hard. But I'm more into performance than comfort. My original Koni gc setup was 450 in the front. 450 sucked, too soft. Now at 600 I like it, but could go to 700. 500r is enough for me.

No finger gap looks good but it's not the best. Having tried many adjustments, I'd say a 1 finger gap is ideal.

 

Nice. I had some 400f/500r on illuminas. The ride was stiff, and choppy on bad roads. My current 350/375 is good for dailying, bad roads feels like riding on stock struts, but with very little body roll ( which is ecactly what i want) . Most sites do say that 350 is too soft if your lowered, thats what my concern is. I never bottomed or had harsh violent noises when i had the 400f on thebilluminas, but they were different springs and wasnt as low as i am.

 

im going to say this again also.
and

Illuminas > Koni.

no compression damping is lame.

 

I think you have the shock adjusted incorrectly if you are cranking rebound all the way up for street driving.
After you have hit a bump, the spring and shock have compressed. The rebound adjust determines how quickly the spring is allowed to release energy and return to neutral/extended position. The higher the setting, the slower the wheel comes back to the ground. Too soft of a setting and the wheel can return to the ground too quickly and bump upwards again.
Generally, setting the rebound softer is better than too stiff.

Springs hold the chassis up over bumps. If you aren't bottoming out, then there won't be any value gained from adding a stiffer spring. Too stiff of spring will give a harsher ride since more of the energy from bumps and imperfections of the road will translate into the chassis. For performance, too much spring makes the car less capable. It might feel more responsive like it handles better, but in reality it will oversteer/understeer more quickly.

If you are getting too much body roll, stiffen up the chassis and add a better anti-roll bar. This will change the oversteer and understeer, but I don't think there will a significance for street driving.

 

Thanks for the info. And tyson, iwasnt impressed by the illuminas, they were bouncy for me ( but probably because of the springs) and the front left blew. I always hear of illuminas blowing, never really hear of konis doing that. Well when i first took these konis for a test drive, i had them at the softest setting, straight out the box settin. I took it on a right turn, down shifted to 2nd going about 35-40, amd the whole car went sideways, like understeer. Went sideways no control almost going to the other side of the lane. Then i stiffened all sides and hit the same turn same speed and it didnt do it anymore. Guess i will soften the fronts a bit see how it reacts with my driving style