j30 suspension question

[j30 leopard]

my stock suspension is one thing the previous owners did not take care of. i dont want to replace it with stock. with what it will cost to replace it, i can buy a good set of true coilovers. does anything from another infiniti or nissan vehicle work or can it be modified to work.

[carlos_knology]

I don't think there is much choice but OEM when it comes to the J30. You could always have something custom-made but I'm sure it won't be cheap.

I think another user on here did such a thing recently. I think he had some custom shocks made but I can't find the post.

Carlos

[VimyJ]

OEM is the most cost effective way to do. Member Diamond has a customized suspension.

[diamondj30]

yep,its like vimy said..theres nothing out there.for a stock j30.somewhere online they make springs.there are no rear struts that can be fanagled,lol..one hard car to do the aftermarket happy dance,lol..hey vimmy,do they make a heavier duty strut,oem this man might be able to use..ive never kept track of that.-what am i thinking,,you can get front and rear swaybars from quickor suspension,they have a website..they are in oregon.best thing i ever did for my car.helps smooth out the ride,mass and holds ground better,really helps body roll also.hope this helps,d

[VimyJ]

I am beginning to seriously consider getting the stiffer non touring J sway bars.

I seem to recall that there were heavy duty struts available for the J now that you mention it. Best to run that by Joe at Infiniti of Scottsdale.

[j30 leopard]

diamond what did you modify to make the suspension work, i need to get the car almost 2 inches lower, im trying to use true coilovers from another car(that is not looking good). im just not paying $170 a corner for stock struts.if i can get a company to make something is anybody interested, i run a import/stereo shop and im in the middle of having vis make a carbon fiber hood for the car.

[maxnix]

im in the middle of having vis make a carbon fiber hood for the car.

Gee, did you know it's aluminum now?

[Q45tech]

The oem suspension only has +- 3.3" maximum of dynamic range.2" lowering will mean the rear may be at negative 3.5 degrees rear camber after reaching the limit of adjustment.

You will need custom camber plates for front struts.What a horrible ride 2" lowering creates you will need ~~300 [370 front] lb/in springs to deal with only 1.3" spring travel

[j30 leopard]

as far as the hood i just like the way carbon fiber looks. q45tech i appreciate the knowledge you have but i just need to figure out if anything else will work from another car, or what it will take to modify something.

[maxnix]

as far as the hood i just like the way carbon fiber looks. q45tech i appreciate the knowledge you have but i just need to figure out if anything else will work from another car, or what it will take to modify something.

Ummmm.....define "work". I think Q45tech did in his example above.

Read diamondj30's posts if you want to really know what it takes to customize a J30 suspension and still have it be functional.

Hope you have a thick wallet and no debt.

Once a hood is painted, doesn't it look like the the same hood made from any other material?

[j30 leopard]

i tried to search for diamonds posts but came up empty. who said i was going to paint the hood, you dont paint a carbon fiber hood

[maxnix]

Hmmmm...I found 125 of them by searching this forum for his posts.

Try starting here: http://www.nissaninfiniticlub....51544

[j30 leopard]

thank you but somewhere in a post is the whole list of mods that he did to his suspension and i cant find it

[maxnix]

You could pm him (if PM were enabled like all the other boards on which I participate), but an email to him might get the same results. I am not sure all of his custom work is in one post, but there are only 125 of them. Might try adding addco to the search, and Koni to another search. His spelling is not the greatest, so reading them all may be your only solution.

[j30 leopard]

im in the middle of reading all his posts, and yes his spelling is not the best but his knowledge makes up for it. i cant email him i dont know his address

[diamondj30]

i mentioned were you can get sway bars,ive havnt used the same spring maker as others here for there j's..mine sre donelocal 40 % over.2.25 front drop---1.50 rear,raked,level on tires..coilspring spesialties online somewhere,can do the spring,but lighter ive heard,cpouple others here have done it.i use koni yellows for an i30 in front.cut bumpstop 1 inch to clear that,they are inserts,rear struts,made to my specs,double adjustable at the top,no jackin it up.rear struts 1250.00 to have made by koni for my application.does that help.the front konis work cause im low enough,they are for a 96,been so long i forget.anything else while were at it,lol..if you can have ,or get a coilover supplier for these fine peeps i bet some would bite..alot of peeps want to mod there j's,but aftermarket is next to nill compared to other casrs.my cars heavier than the norm i use pretty heavy springs ,tight but smooth ,can drive for days,have..tight enough for no way go lower sidewall.not with sz50's...my 200sx with 17 inch 40series side wall feals like mud in a turn compared to mine.kumhos

[j30 leopard]

should i use the stock j30 sway bars or buy the ones you mentioned earlier. is the car heavier because of stereo? im building a big system as well. im just thinking of doing an air ride system and stiffening the sway bars. dont jump down my throat im just thinking about the air. i dont want go to as low as you are only about 1.75 to 2 inch top, i have 275/30/20 in the back and with the system i dont want it to sag.

[j30 leopard]

im trying to have b&g make coilovers, i have them in my integra and like them alot. so if anybody is interested it would help to get them to make them

[diamondj30]

first thing your going to have to do is wheight the front and back and whole car,so that they are made for an oem spec j30,so everyon can use them..you just cant throw parts together and call it good..if someone that makes you springs doesnt whieght the car and other tech things,things may not mesh correctally.someone has got to be first up to bat.im done so it aint me,lol..i got the sway bars made. thats how you can get them i wasd first there.my cars set up for a heavy system,my car set up for iasca s.q.comps.insulated to say the least,lol..i cant go wider than 225 in back comfortably,to close for me.i actually have 2 different sets off spring to adjust to system changes,hows that,lol...been off work way to long.i just saw an head dr.the other day,my stage is screwed,i cant compete anymore,just found out.im missing different freq's on each ear...cant tell were sound originates anymore,crappo,oh well

[j30 leopard]

i didnt start to install the system for that reason, i figured they were going to need those numbers. im still trying to talk them into it. did you have any camber plates made?

[diamondj30]

no,i go thru a set of tires every yearwith off the wheel rotations---good thinkin there.car sucks camber wise oem,at least both i owned did.wore inside way more than should.they sit in alittle like a lowrider.grab hella corner tho,lol..i use 436 rear end gearing,scoots way better..makes it alot diff.in a good way,less shifting by the transmission,way more stable ,i can use my criuse at 25-6 miles an hour.10 over all the way around..one thing i should mentyion,a car with stock tires and syspention could get a little scarry in the rain cause the quickness of the shifts,so be carefull peeps.on a steep hill in the rain in a straight line at 60 something,when it kicks down,you most likely will. break tracktion.enough to screw you up probubly.the other day i was behind a cop get on the ramp and was going slow15-20 mph was the little turn then straight.kicked down to first on accident on dry pavement and was doing some full on fishtailing,wide..m7y freind goes,wooooooooooooo,dam.i go woops.my cars heavy enough so i dont spin my tires in the rain when in straight line level.

[j30 leopard]

diamond what was the major problem with making the rear struts. i think i might be able to make my own coilovers. i was talking to a friend of mine about this problem and he said he might be able to make something. oh yeah sorry about your hearing loss. that really sucks.

[VimyJ]

You lose hearing every day. Everyone does. If you're in an enviroment where you have to shout to be heard, you can be sure your ears are wearing out.

BTW, D, I have never noticed any uneven tire wear on my OEM set up.

[diamondj30]

must be a mirical mike,lol.both cars wore inner ,front mostly.that woould be coo to make your own..i wish i could weld,it be all over.oh,ya nottin like bleadin ears,really helped wearing earplugs at work,lol,and constant ringing.no problem make struts.just make sure you use the right spring.i almost had coilovers made,but i would of had to do yet more springs,cause they would be real short,the spring.once i feel better down the road i will try to get some plates made,..i hardly drive at all now so it going to be awhile..headers cams,and x pipe are my next mods as soon as i get better.i guess i will be the one to have the headers made..once there made all can buy...stans headers in kent,.wa.i ramble sorry,d.side note.porterfield brakes has different rotors and pads..i like r4s pads.carbon kevlar.badass.heat and cryo treated crossdrilled rotors i use too.amd lines.real safe feeling car.

[Q45tech]

What language are you typing?

[diamondj30]

its called add and stroke language teck,lol.funny thing is i can spell tech,lol

[j30 leopard]

im in on the headers diamond. if you want im working thermal reasearch and developement on making a exhaust. do you already have that brake setup on the car, its hard to read your writing sometimes(lol) no offense.

[diamondj30]

i know its hard to read.thanks ataxia,lol.yes i use them on my crar..just changed the pads out.25 % left too.running them since 98 i think.dont have to surface nearly as much as oem rotors.i swear 3 months with oem and im like WTF,how can the warp so damn fast.i turned the stock ones every six months.ive olny ground these once since then.i like it.lol..i think its about 1400,16-something like that to get the headers made....since everything on the car is gellin so nice i think i will get the headers.but not for awhile.the amps going in are 80 pounds alone this time,so every little bit helps.thats why i will get 15 gallon tank and mount under car.get gas behind lisense plate.pretty simple really.the install has to balance the car like before.not just looks,functional.less gas,since i get good milage and move amps forward for balance..just th4 way i think,well whats left of thinkin,lol.sorry for answering more of yuour question,thought it may help in some odd way i guess,lol.probubly get rid of back seat too.i dont need it,kids are grown.plus my front seats are set back 3 inches but still bolt in factory holes,walla,legroom,lol.and they work..i use borla muffler with high flow cats and 15 inch blue streak glasspacks to smooth out the drone.completally,sounds very nice,not overpowering.trimmed the bumper so they both have identical reliefs for the exhaust.not just one.once again,balance in a dfiferent way,hehe

[VimyJ]

Since your mods have your J wieghing as much as a Q and the J and Q share the same OEM rotors, you probably created the same warping problem the Q suffers from: not enough rotor for such a heavy car. Slotted rotors and a different pad compound for the increased heat build up is a good idea and the results prove it.

[diamondj30]

yep,thats for sure vimmy