[CT335xi]

Ok let me begin by telling you about my setup . I'm running 350f/600r springs on full soft with their supplied bumpstops on factory front strut mounts with 60000 miles and the stock rft's . Now heres my issue I feel like the car is riding on the bumpstops as it feels like it bottoms out on any road that is even slightly broken up. When first installed I didn't think it felt all that bad but maybe the roads are getting worse, maybe worn out strut mounts? I have contacted TC Kline and have gone back and forth with a few emails. I was told that if I went any lower then 1/2 inch lowered I would need the front struts custom cut down 1" shorter. I did not buy it direct thru TC Kline but thru my friends who own a shop, now I was under the impression that there true match sa coilover kits already had the 1" shorter front struts? I wouldn't have went with coil overs if I was planning a 1/2" drop. I don't have them slammed but probably 1 1/2 lowered in front. Getting rid of the runcrap tires first to see how much it helps but have a feeling it will only help a little. What else should I look into?

[cvc 22349a]

For starters, you shouldn't run Konis at full soft or full firm, so try firming them up per TCK suggestions. Get rid of the runflats or get rid of the suspension-they're incompatible. If that doesn't work and you keep the suspension, try raising the car up.

[CT335xi]

Originally Posted by cvc 22349a

For starters, you shouldn't run Konis at full soft or full firm, so try firming them up per TCK suggestions. Get rid of the runflats or get rid of the suspension-they're incompatible. If that doesn't work and you keep the suspension, try raising the car up.

I plan on getting rid of the runflats , I usually run them in winter only. I'm going to run some Michelin PSS's and probably get some regular snows when winter comes around to run on the stock wheels. I was never told not to run them full soft and was never recommended a specific setting. What do you think go half way up? Of course I will try this once I change out the tires. I do hope it will improve the ride as it would of been pointless to go with coilover's and have to raise it back up, I could of saved some money going with a standard adjustible koni's strut+shocks/ springs.

[cvc 22349a]

I ran Konis with softer springs so my suggestion is worth squat. I'd contact TCK or HPA and ask. Half way is probably right in the rear and a bit firmer in the front is my best guess.
I don't know what you mean about shortening the strut bodies. afaik TCK specs shorter strut bodies and custom valving from Koni.

[Gennosuke]

I remember Harold from HPA mentioned to me one time it's generally a good idea to have new front strut mounts if your near or over 40k. But it could be the runflats like cvc said. I'm still on my winter set(Dunlop sport 3d) till I get some PSS put on...and the winter tires with the coils have been good so far. I also have the settings halfway all around. And like cvc said I saw that somewhere here not to run them full soft or full firm...I can't remember which post. I'm about stock height also so I don't know how it is to be at 1 1/2 in the front with the TC Kline SA coils.

[CJ421]

Previous suggestion is right ...ditch the RFT's.

[sutter2k]

Originally Posted by CT335xi

Ok let me begin by telling you about my setup . I'm running 350f/600r springs on full soft with their supplied bumpstops on factory front strut mounts with 60000 miles and the stock rft's . Now heres my issue I feel like the car is riding on the bumpstops as it feels like it bottoms out on any road that is even slightly broken up. When first installed I didn't think it felt all that bad but maybe the roads are getting worse, maybe worn out strut mounts? I have contacted TC Kline and have gone back and forth with a few emails. I was told that if I went any lower then 1/2 inch lowered I would need the front struts custom cut down 1" shorter. I did not buy it direct thru TC Kline but thru my friends who own a shop, now I was under the impression that there true match sa coilover kits already had the 1" shorter front struts? I wouldn't have went with coil overs if I was planning a 1/2" drop. I don't have them slammed but probably 1 1/2 lowered in front. Getting rid of the runcrap tires first to see how much it helps but have a feeling it will only help a little. What else should I look into?

I had your exact problems 336lbs springs with tcklines sa, didn't properly dampen the front. I tried setting the shocks as high as possbile and they would still bottom out. Granted I had one shock seized and stuck at full soft.
I still have tckline sa in the rear. The rears have not caused any problems and seem to handle the 672lbs rate just fine. I now run 392lbs swift springs with ohlin shocks in the front(stock w/dinan plates). A world of difference more comfortable and handling is much balanced(less twitchy) as well. No more crashing or bottoming out. Not a cheap solution, but finally happy.
However, I will now need spacers in the front for my summer wheels because ohilns uses a 5mm larger ID spring.

[CT335xi]

Originally Posted by sutter2k

I had your exact problems 336lbs springs with tcklines sa, didn't properly dampen the front. I tried setting the shocks as high as possbile and they would still bottom out. Granted I had one shock seized and stuck at full soft.
I still have tckline sa in the rear. The rears have not caused any problems and seem to handle the 672lbs rate just fine. I now run 392lbs swift springs with ohlin shocks in the front(stock w/dinan plates). A world of difference more comfortable and handling is much balanced(less twitchy) as well. No more crashing or bottoming out. Not a cheap solution, but finally happy.
However, I will now need spacers in the front for my summer wheels because ohilns uses a 5mm larger ID spring.

thanks for the reply but I hope I don't have the same issue you had and have to replace my front struts.

[sutter2k]

Originally Posted by CT335xi

thanks for the reply but I hope I don't have the same issue you had and have to replace my front struts.

if: feels like it bottoms out on any road that is even slightly broken up

its not the tires.