What do you think of BC sub-tank
 

I was look into internet and found this brand BC sub tank

It's price is not too high 1451$

Since the product quite cheap so im wry about the performance

Any suggestion or The one that come with the car is better??

do you have a link to what your talking about?

DTC or nuthin!
 

I swear by my DTC under receptical.

BCSports, ???? BC - SMB

here is the link. Could you check it out. Some say its like TEIN with Sub-tank
but this one made in Taiwan.

Well BC is from Taiwan, ive not seen this sub tank before, but i do have the BC ERs on my car and they do a fantastic job.

Ok wait a sec, Sub tank is i think being lost in translation. Basically its the BC ERs, what i have on the car now. They are probably, for the money, one of the best suspension set ups out there. That said i dont like their stock springs and would recommend getting some swift variants done up. The nice thing about BC ERs tho is if you want a custom spring set up, they re-valve your suspension to match the new spring rates for free.

You can contact Scott at Relentless Autosports (hes on the forum) or talk to any of the vendors on the forum ( such as Driveline) who sell BC ERs and then ask for custom springs and the free re-valving option

Im going to add in here that the Re-Valving Scott can do is a heck of a lot better than what BC can do and since he doesn't charge more for it, its a fantastic deal.

I have a few pics in my albums on the forums i think, if not ill post more 2morrow.

I understand what the OP is refering to. To him..... sub tank = external reservoir (ER)

My apologize, We call it sub- tank in my country. I didnt know it has a name BC ERs. ^^"

-How did you guys adjust the valve between Front and Rear? how many click?

Is BC ERs a lot better than the old one from the car??

- Is it as good as KW, TEIN and Ohlin?

As for adjustments, it all depends on personal preference.....
On the "off the shelf" BC Racing ER (external reservoir) coilovers with the standard 8K 10k springs for the 370Z I would run a little softer compression settings and a little stiffer rebound settings. It makes for a nice controlled feel with not too harsh of a ride.

For the street, maybe run most of the way soft on compression and about in the middle of the settings for the rebound.

For track use and aggressive driving, just keep about the same ratio but go a bit stiffer on both compression and rebound... It really all depends on your supporting suspension modifications, your alignment settings, and basically personal preferences.

I work with and have worked with many suspension and coilover companies. I have tested, used, installed just about most of the coilover brands out there available for these Z's and.... for the price range..... I would put the BC Racing coilovers up against most of the other coilovers you have mentioned (and several that you didn't mention).
Both the BC Racing BR (standard coilover) and the ER (remote reservoir) are well made and should suit you well. It is one of only a few brands of coilovers I would highly recommend.

If you are looking for a better, more refined, tailor made BC Racing coilover with lighter weight, more accurate springs, more adjustment range, and better valving.... Might I suggest our Relentless Autosports custom spec'd and valved version of BC Racing coilovers that are valved and spec'd specifically for your liking and needs.