I recently was able to acquire a brand new set of ITR Zeal Function B6 coilovers. The previous owner had Endless upgraded it with the Swift Premium Race Springs 18k f/ 16k r and revalved when he special ordered it. Will these be too stiff for a street car? I've been searching on this forum all day with minimal answers. I found something that tartje had mention. Thanks.

Quote:
Originally Posted by tartje
spring rates on their own mean nothing as the harshness will be down to how well the dampers are valved.

 

to each their own but i think it will be way to stiff.

im running 10k rear, 8k fronts and i feel the bumps but im not uncomfortable. it was a big difference over comfortability over stock though.

so if you are going from stock to the zeals, i think you might be in for a initally shock

edit:

just saw the quote about the valves. doesnt really make sense to me because although yes a properly adjusted shock will help with the dampening but it still takes a great amount of force to suppress the higher spring rate coil correct? thus making the car more rigid during turns and in daily driving case, feeling rough on the streets (possible. again by driver opinion)

 

this guy have no idea. you'll be fine. just set the shocks at level 1 for street and adjust for track days.

 

Thanks for the response guys. I might just install and give them a try over xmas break. I'll follow up on how they feel on the street. Anyone else experience these?

 

That ish is going to be really stiff, I had some Tien RA's a long time ago 16k, 14k and they were too much for a street/ track car.

 

I have this setup and love it. Had it on my ek hatch but never got to really drive the car. Have them on my eg now and they ride better then most coilovers setup out there. Taking it on sharp turn is another great +..i would love to use these for auto x but the car is just my dd so yeah. i love my zeal!

 

you can adjust the shocks as soft as you want. its still takes so much pressure to compress the spring...

stiff springs are stiff springs. you can only mask what the true function is.

as i said before. to each their own. go ahead and throw them on your car but if your going from a stock setup to the zeal, be in for a surprise.

 

Evilstar.. How are they on the streets? Harsh? I am consider selling the 18k and going 16k f/14k r. Damn a bunch of mixed thoughts now.

 

Personally opinion, yes too stiff for a street car.

I've had 18K springs on my track ITR before that occasionally saw the street. The dampers were more than capable of handling those rates, but the setup was too stiff and too low for any reasonable street usage.

Remember that one of the main reasons why we want stiff rates for the DC2 is to have the ability to run low ride height (like 4" to 5" from side sill to ground). If you raise it up to be more street friendly, you're defeating the purpose.

 

I got a set of 20k, 18k, and 16k springs I need to sell now. Leaning toward a 14k f/12 r or 12k f/10 r setup. Which setup do you guys prefer?

 

What exactly are you doing with the car? If it is mainly a street car, you'd be insane to run those rates. Drop down to about half of those rates and don't slam the crap out of the car and you'll be fine.

Why in the world anyone would to run 18/16 on a street car is beyond me. Wait until you hit a dip in the road and your head will slam the headliner (if you set your shocks soft). Not to mention the extra stress you're putting on the chassis.

 

My intial plan was to purchase some PIC. I got a deal on these coilovers with all these springs rates. Just gonna street it and ocasional track events. I am gonna go with 14k, 12k, and 10k after I sell all these springs. Thanks for the input.

 

ill tell you what to save you time from reading somebody elses post on what they read on. sell me the springs and ill sell you my 10k 8k spring rates. experience do give you knowledge. but if your more interested in what people tell you. listen to them and sell it to me.

 

What kind of springs do you have?

 

how much do you want for it. price is good ill take it. not interested in trading.

 

You got PM.

 

The Function B6s were a little on the soft side. I had a set years ago, and they were much softer (and generally better for the street) than the Buddy Club RSDs I used after them. I was on softer springs though (10K/8K I think?). Car behaved very neutrally, and cranking the stiffness up on the rears could dial in a touch more tail wagging. The other nice thing about them was that they were aluminum-bodied, and weighed next to nothing. Of course, wtf cares about that on a street car.

 

I have heard nothing but good reviews about the zeal function b6 itself. Just trying to find the right spring rates setup right now. Debating if I should go with a 16kg f/ 12kg r or 14kg f/ 10kg r setup. Maybe I should get a poll up for voting.

 

If you are driving the car primarily on the street, go with the softer rates. They'll be adequate on track, and you'll hate yourself less on a daily basis.