One for the Tire & Wheel guys.

[Tennz]

Ok, about three months ago I put 18X8 and 245/40s all around. This arrangment is working well for the most part. I love the ride the 18s give me, but my problem is that there is what feel like a high speed shimmy in the front. It starts at about 70 and smooths at 110. any ideas? Could the massive toe in that Nissan cranks into the 350z be a factor?

[evildky]

sounds liek you got a wheel out of baance, have them reballanced

[AZ350Z]

Ok, about three months ago I put 18X8 and 245/40s all around. This arrangment is working well for the most part. I love the ride the 18s give me, but my problem is that there is what feel like a high speed shimmy in the front. It starts at about 70 and smooths at 110. any ideas? Could the massive toe in that Nissan cranks into the 350z be a factor?

Definately not a toe issue. Check your balance and lower control arm bushings, all the bolts tight etc.

[redsx13]

Definately not a toe issue. Check your balance and lower control arm bushings, all the bolts tight etc.

lol, AZ350Z, i remember you gave me advice when my control arm bushings went. (Btw i replaced them and it still has the same isue. [ baaaddd front wheel shimmy while cornering and drifting])

Tennz, its got to be your balance, sometimes those sticky weights just fall off. if thats not it, get an alignment. your problem is easy, unlike mine.

at least yours is noticeable on a test drive, what the heck do i do, go to the dealership and tell them to drift my car to feel the front wheel hop?

[marlin29311]

+1 to what everyone is saying - make sure that your wheels are high speed balanced - sounds like a weight fell off or the tire is not on properly.

[_b.jaye_]

are these used wheels?

[Tennz]

are these used wheels?

Nope new, about 3 months old. Taking it this weekend for a force balancing. Thanks all we see what happens.

[R350Zz33]

maybe because you used the wrong size wheels? stock front are 8.5 and stock back 9.5 .

[Anthonysflying]

maybe because you used the wrong size wheels? stock front are 8.5 and stock back 9.5 .

Crap i can't find the face palm slap icon...

[ldstang50]

you mean this one running different size wheels than stock will have absolutely NOTHING to do with any shaking or shimmying he is feeling.

Crap i can't find the face palm slap icon...

[Tennz]

maybe because you used the wrong size wheels? stock front are 8.5 and stock back 9.5 .

I understand that trackers use this setup for racing. I use it for commuting to and from work, it allows me to rotate the tires to maximize tire wear and keep the noise down. I don't think the tire wheel setup is the problem. I'll know more after the rebalance.

[R350Zz33]

i just think that you shoudent mess what nissan worked years on to make right they come from the factory with the wheels like that for a reason so leave em be.

[bmike818]

i just think that you shoudent mess what nissan worked years on to make right they come from the factory with the wheels like that for a reason so leave em be.

Dude! if you don't know the answer you should really stop talking from your butt.

...still haven't learned

sounds liek you got a wheel out of baance, have them reballanced

....the other thing I can think of is maybe you flat spotted your tire which i doubt since you have ABS. This usually happens when your brakes locks up

keep us posted and goodluck!

[Anthonysflying]

^Good call, does the ABS still work with the TCS off? I may have to test this later with my new project mu pads

Edit: possible rotor warpage?

[marlin29311]

^Good call, does the ABS still work with the TCS off? I may have to test this later with my new project mu pads

Edit: possible rotor warpage?

ABS is always on - it's a system you can't turn off. Hell, the TCS is still on even when you turn it off.

Have you made any intense stops to cause the rotors to warp or have any tire skid issues? My guess is still on the balancing of the wheels...

i just think that you shoudent mess what nissan worked years on to make right they come from the factory with the wheels like that for a reason so leave em be.

If what Nissan put out for the car is the best, why did you add crapbon fiber eyelids to your car, and want to add a turbo setup? Nissan spent years making the engine tuning right, so adding a turbo would destroy that perfect tune.

[Sentientbydesign]

i just think that you shoudent mess what nissan worked years on to make right they come from the factory with the wheels like that for a reason so leave em be.

STFU!!!

Nissan screwed up on my intake design and improved upon the it in your car. What does that say about the VQ35DE?

I personally wouldn't go any "skinnier" than stock tires but the base 17s were 225s(?).

OP, balance and alignment first. If that doesn't fix it...*walks away*

[ldstang50]

I know I'm new here nor am I a moderator, but Sentient, as the Articles Manager of Nico and a well respected member, you should be holding yourself to a higher standard in your posts. I've been on this board posting for a month and know Richie is just about useless with his posts and so does just about everyone else. But telling him to STFU!!!! is not the way to go about this. Report the post and have it removed so the OP doesn't make any stupid changes because he read the wrong post. Maybe you guys should think about having his account suspended until he learns.

And Richie, if you don't know, don't say what you THINK is right and act like it is the right thing. I don't claim to know everything about cars, but I have a very good general knowledge and only post either suggestions on topics I think I'm right about. Take the time to read other posts, read up on wikipedia and absorb the knowledge of the mods and tech guys on here. You continue to pissoff many people on the board with some brainless posts. I mean really, my 16yr old brother has a larger knowledge base than you. If Nissan made the car so perfect with those wheels from the factory why do most people change their wheels as their first mod?

Anyways, back to on topic, Anthonysflying, as marlin said the ABS will work with TCS off. Rotor warpage isn't a bad guess but it will only cause shaking when he is on the brakes, not, when just driving down the road.

[Anthonysflying]

OP, balance and alignment first. If that doesn't fix it...*walks away*

Are you implying that the frame could be bent...

Hey Tennz, did you get a new front splitter by chance? or possibly bottom out hard enough to warp/crack the engine splash guard?

[Sentientbydesign]

Are you implying that the frame could be bent...

Bent frame, faulty bushing, other suspension failure...

Suspension is definitely not my area of expertise, but I would venture to say that the OP's issue is either very easy to fix or extremely difficult (more so to figure out what it is).

[R350Zz33]

If what Nissan put out for the car is the best, why did you add crapbon fiber eyelids to your car, and want to add a turbo setup? Nissan spent years making the engine tuning right, so adding a turbo would destroy that perfect tune.

i put the eylids on my z to separate mine from all the others and it gives it more of an aggressive lookand yes i want to add a turbo setup to get more performance i understand this may disturb the 57/43 weight distribution and nissans safe tune. remember car companies do a safe tune and run cars rich so the motor will be safe. nissan wanted to make a high hp N/A sports car easy right there was only one catch the motor has to last 200,000 miles it is said that the 350z's motor are capable of 400hp, but with 400hp reliability drops down alot. so they discovered the perfect balance to get the motor to last.

and most people mod there wheels first for looks i love my stockers the only thing i would replace them with is some nice light weight volks form and function.

[DINO THE WHEEL GUY]

Measure the center bore of your wheel and the hub on the car (in millimeters) if they are not the same diameter you need whats called "hub rings" to hold the wheel center or "hub centric" I can send you a set for about 4 bucks plus ship, they will cure your shimmy at speedDean

[Tennz]

Measure the center bore of your wheel and the hub on the car (in millimeters) if they are not the same diameter you need whats called "hub rings" to hold the wheel center or "hub centric" I can send you a set for about 4 bucks plus ship, they will cure your shimmy at speedDean

Thanks, but I use hub rings. I took it and had it ran through the Hunter 9700. It simulates road forces on the tire. Boy what a difference. lost a center cap though, Grrrrr.