An Exotic Lifestyle Blog of Manliness

JZZ UPDATE: Suspension thoughts

So I was thinking of something the other day:

Recently I have had some deep conversations about suspension geometry and such with Sosideways. This is what we consider entertaining on those long boring days of sitting at a desk. We discussed a few of the companies out there that produce coilovers and shocks and such. I also got into a discussion on this topic with alex pfeiffer of battle version and formula D fane as he is trying to run an SC300 for next season.

You Nissan guys get more out of your coilovers because that is where you get some of your camber adjustment and such as well. Us JZZ chassi drivers don’t get that, we just get a threaded body shock and spring combo. The dampers are usually XX-way adjustable and thats about it. Now most of the “cheaper” companies out there are not rebuildable or re-valvable they just swap out your coilover if something goes wrong and charge you a fee.

Now one cool thing us SC guys do get to use is the JZA80 Supra suspension. Namely we can use their OEM shocks and springs to net about a .5″ cause we share many of the same suspension components but for some reason the Supra shocks are shorter buy design than the SC. Probly has to do with a luxury versus sports set up.

Currently I am running JZA80 Tokico shocks with JZA80 Vogtland springs. This would net a static 1.2″ drop on the Supra but nets about a 1.7″ drop on my car. I am more than happy with this but the tokico are bsically throw away if one blows and have no dampening adjustment. I also need my car to be about 3/4-1/2″ lower just to delete some wheel well gap. Much lower and my aero will literally be touching the ground.

Here is what my new plan is. Rather than paying $800 for a sub-par set of coilovers with springs that are of a general design in load and tension like most coilovers now have become or spend $2000 on a set of race coilovers that even on full soft jar the teeth out of my head, I am going to purchase a tuned spring shock combo.

Shocks that have been discussed and seem to be race proven are Koni yellow or bilstein HD. The Bilsteins seem to have more positive reviews as well as race proven history. I hear that Konis adjustment is more noticable click to click rather than 32 ways of “i think theres a difference”. These two companies are also designed for lower springs and suggext companies Like Eibach, H&R, Sprint and yellow line I believe. So i searched through the following companies and looked at their springs.

Sprint has a spring for the JZA80 that is a 1.8″ drop this would net me a guranateed 1/2″+ lower drop i wanted, with a shock that is not only widely known for being rebuildable but can also have valving tuned to the customers needs. Down the road if i decided that I needed to go lower bilstein shocks also accept a threaded shock body adapter to make them a coilover, though i do not think it will be necessary.

Total cost of this project should be about $650 when i get around to it


10 responses

  1. you started talking about suspension geometry, then you just turned it into a budget ride height essay. i was expecting modded suspension arms or shortened rear lcas. disappointing. i guess its more interesting if you have a soarer/supra

    December 29, 2009 at 6:13 pm

    • suspension arms on SC are a little different than 240 arms. All our camber adjustment is built right into those. The only people to make aftermarket arms out there that i trust are Battle version and Ikeya formula. Ikeya is huge money $4500 for the set. Some ebay arms exist out there but they have huge bearing issues as well as design flaws that become a big concern with daily driving.

      I didn’t mean for it to come out sounding as a budget ride height essay but more of a correct street car suspension deal. I drive this car everyday everywhere from May to October. Most of SC the drift cars out there run stock arms and just cut their knuckles ans change tie rods and add adjustable traction and toe rods.

      December 29, 2009 at 8:04 pm

  2. Run PartShopMax! It’s the best suspension for the money! 18kg (F) and 12kg (r)! What’s your budget?

    December 29, 2009 at 7:32 pm

    • Yeah I have known about the pbm coilovers for a long time. They are great for track cars not so much for street cars if you want to keep a fairly stock comfort level.

      Also in the conversation I had with Alex at battle Version he said something that made a lot of sense. These coilovers you see out there are not designed for the car itself more for just a vague application. Going about the bilstein way i can send in the exact weight and such of my car and the specs of the springs I purchase and have the shocked valved for that set up.

      Nothing against PBM or tein or stance but i think a custom valved shock to my car is a lot better than a shock that is valved the same for all the cars out there and only running different mounts and at time springs.

      December 29, 2009 at 8:12 pm

  3. I could afford coilovers around $1200 but with my aggressive aero i don’t need to go horribly low, I also don’t ever see myself adjusting my coilover once i get them. I’d go low and stay there.

    However I do see myself adjusting dampening on rear and front shock for times i may track the car. Nothing to serious just some ametuer sliding. The Knoi set up would be good for that.

    Im basically going to build a static set up that will out perfrom any coilover that is nice and low for about half the price. Every frowns on static suspensions now a days

    December 29, 2009 at 8:18 pm

  4. If you have everything valved well, you shouldn’t even need to mess with the damper adjustment knobs between driving on the street and going on the track.

    Remember sway bars? Yeah, get some bigger ones lol

    December 30, 2009 at 11:40 am

  5. to whom it may concern, rear suspension wise, i run bc coils(6kg/mm), ST sways (i think, got them used and repainted) and ghetto cheapo aftermarket arms. i modified my camber arms, making them longer so i can properly zero out my camber. proper camber and toe go a long way. damping is set to almost maximum soft. these settings are designed to keep the car flat, as well as retain as much grip as possible, so i can stay on the throttle while drifting, drift as fast as possible, and make as much smoke as possible.

    in the front i have tension rods and bc coils(8kg/mm). So far I have done nothing to increase steering angle, although that is something I hope to tackle before the car goes back on the road. I’m going to modify my spindles with my buddy will, but I still need to find a good inexpensive tie rod combo to go along with it. so, im accepting suggestions.

    do you have an image showing the camber situation on sc300s?

    December 30, 2009 at 5:44 pm

    • oh yeah, i run a lot of camber out front also, and I dd the car from april through oct/nov. I did the whole season on one set of front tires (with tread to spare) fwiw.

      December 30, 2009 at 5:46 pm

  6. here is a pic of the OEM camber adjustment up front

    Now its not ridiculous adjustment but it does give you between 2 and or 3 *

    The rear requires a camber kit do to much of anything or camber adjustable Rucas but once again the only place that makes Rucas for my car worth a damn is Ikeya Formula.

    As for your tie rods i have heard good things about JIC, Kazama, wicked tuning and tein. They all seem to be around $175 though

    December 30, 2009 at 7:36 pm

  7. Ikeya Formula don’t make tie rods for SCs? I know they make a badass one for the S-chassis, and is what PBM dudes recommend, and plus they carry them.

    December 31, 2009 at 10:19 am

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