ground control coilovers

[Hellabad]

ok found a H&R kit for 850 instead of the 1700 for ground-control. i got the money I can spend for gc but are they really worth spending double the money? as far as i can tell gc are adjustable and the H&R kit is not.

I do not know what HR kit is for $850, but the GC kits come with camber/caster plates, rear shock mounts, bumpstops and all the little pieces that make it work together.

Additionally, there are two GC-e30 kits for $1499, that also have all those parts, assembled.

A "spec e30 kit" uses standard length front struts that will always be on the bumpstops, which is not good, as everybody is finally figuring out. This is fine, perhaps even desirable for a spec-e30 race car, but a bad place to cut corners for a street car.

If you are talking about just springs, The HR spec e30 kit is $349 most places, and the GC coilover conversion kit is $50 more but then, for $50, you get to:


Choose the ride height you want, instead of what you get.
Change the ride height.
Choose different spring rates.
Buy new springs for only $59 each if you change your car.
Discuss different springs with anybody on any forum anywhere.

[nrubenstein]

If you want to go cheap, do the SE30 setup.

[C_gannon09]

ok found a H&R kit for 850 instead of the 1700 for ground-control. i got the money I can spend for gc but are they really worth spending double the money? as far as i can tell gc are adjustable and the H&R kit is not.

[Jb325is]

What shocks? Nice E34 by the way. Rarely see nice/fixed up ones anymore.

GC "short" koni's and Koni SA rears. Thanks!

[phreshkid]

How much flex do you have with you 650 rears? Are you still on a ballon style set-up?

I have yet to drive the car my friend. It has been sitting for months. Motor swap runs perfectly and is all ready for a full repaint which is expensive as all hell. I'll let you know next week some time.

As far as balloon style setup, I'm not sure what you are referring to but I'm going to go ahead and answer no.

[reelizmpro]

I run 550/750. It's tolerable on the street and awesome for autocross

What shocks? Nice E34 by the way. Rarely see nice/fixed up ones anymore.

[Jb325is]

I run 550/750. It's tolerable on the street and awesome for autocross

[jeswaw]

That's the spring rate I run but I don't have an IX, I just have a swapped 318is.

How much flex do you have with you 650 rears? Are you still on a ballon style set-up?

[phreshkid]

how much stiffer should I go. would 440/650 be a good combo

That's the spring rate I run but I don't have an IX, I just have a swapped 318is.

[C_gannon09]

how much stiffer should I go. would 440/650 be a good combo

[Hellabad]

i was told by a guy on e30tech.com that he is running 375/475 on a 318is and it seems to work pretty good but wishes it was softer at times and harder at times (all suspension is like that) but should i go harder or softer with an ix? and could the motor swap play a part in it with the weight of the engine

ix weighs more = stiffer

[C_gannon09]

i was told by a guy on e30tech.com that he is running 375/475 on a 318is and it seems to work pretty good but wishes it was softer at times and harder at times (all suspension is like that) but should i go harder or softer with an ix? and could the motor swap play a part in it with the weight of the engine

[z31maniac]

ordering a full suspension kit from gc and dont know what to pick for the front and rear springs...just gonna be a daily but im looking into motor swaps but seems like none really worth it for the ix. motor has less than 166k on it so maybe just boost it? looking for opinions on that as well. but options are

front: 375 440 and 525
rear: 475 650 and 750

Like SkinnyVT said, and there are WAY more spring rate options than that. I think the springs can be ordered in 25lb increments. Those are just the most popular combinations.

[SkinnyVT]

call GC, ask question, get best answer, give credit card number

[C_gannon09]

ordering a full suspension kit from gc and dont know what to pick for the front and rear springs...just gonna be a daily but im looking into motor swaps but seems like none really worth it for the ix. motor has less than 166k on it so maybe just boost it? looking for opinions on that as well. but options are

front: 375 440 and 525
rear: 475 650 and 750