Jump to content
SAU Community

Recommended Posts

So i upgraded to bigger 10" rims and 265 tyres and now on normal residential roads my car handles much worse. However in the mountains cornering it handles much better also on the freeway it does feel better.

The problem is that my car now handles like absolute crap on normal bumpy roads. It's hard to describe but kind of feels like it's 'tram tracking' from what i've researched on here.

It's kind of scary becuase it's hard to keep straight sometimes. I've already taken it to pedders and replaced the power steering rack, rack ends and tie rod ends.

He thought that by fixing these things that it would improve the handling on normal roads, but it's still pretty much the same.

Is this the price you pay for having such fat tyres? If i don't like it should I just go back to my original rims and tyres? I really don't want to though.

Can anyone please help as to what I can try to do to fix this? Or is this just the way that it has to be when upgrading to bigger tyres?

I've had a wheel alignment done 3 times. lol

That's how i found out my tie rod was worn, which i've replaced.

Any other ideas? Does anyone else run fat tyres that has this issue on normal roads?

265's arent that bad, they are pretty common size so i dont see why you have a drama... Post up the wheel alignment specs, im sure someone on here will be able to help... You should have a print out?

It should be something simple :)

What brand tyres?

Tyre pressure is?

No crack in any rims?

Suspension bushes and arms were checked by Pedders?

Crappy roads where you live?

Try another SAUer's rims for a run perhaps?

I had this problem when i purchased my car, it had been sitting in storage and the tyres were very old and the rubber had turned very hard, I got new wider wheels with brand new rubber and it drove much, much better... so im thinking that your problem is tyres?.. either age, pressure, profile or a combination etc?...

having said that sometimes on roads you can get abit of a kick from the wheels following grooves in the road, but maybe thats just a Characteristic of wide tyres combined with bad roads?...

tbh its pretty normal for gtrs to tram track. you can get rid of it mostly with an alignment (i think its toe-in causes it) but then you will sacrifice some of the grip when you're in the twisties.

For starters I would take it to somewhere that actually knows about suspension i.e. not most Pedders franchises

Anyone who thinks that replacing the power steering rack, rack ends and tie rod ends might fix it is a grade A monkey!

If you are in Melbourne try Advantage suspension in Moorabin

BTW Tramlining is pretty common in cars with wide tyres on bad roads and some tyres are worse than others e.g. semi slicks are much worse than street tyres

I'd be interested to see your wheel alignment/wheel/tyre specs

Wider tyres do tend to tramline more, and you can reduce that tendency by adding more toe in at the front. However, this will also reduce the eagerness to turn in, and it may understeer a bit more, so its a compromise. I believe adding more castor will also help, and AFAIK there's no real downside to that.

So;

1. Check the castor is optimal

2. Add some toe in (or set it to zero if you currently have toe out).

Personally i prefer to put up with a bit of tramlining to get the turn in benefits.

+1 for alignment specs

Unfortunately skylines track.

Mine is a lot worse now I'm running 265/40R17

But, I also got different effects with different tread patterns and tyre compositions.

Just think of it as a good workout while you drive.

And enjoy the drive through the twisties.

Agreed - big tyres tramline like crazy. the stickier they are, the worse they tend to be.

The only thing worth checking is the bushes and balljoints in the front, any additional movement there will make it worse.

But basically....everyone just lives with this behaviour. You might also find your grip in the wet is reduced from before.

in the same boat here, cars got a mind of it's own, running 255 semi, my rear ball joints got play which I'm replacing with driftwork elimination kit, fronts I'm yet to check

don't realise how bad until someone else drives it n shits themselves when it wanders on reasonably good road

Is your car really lowered? If so then you may have bumpsteer alignment issues. You can't overly lower a GTR without really screwing up the bump steer and wider stickier tires will make it seem like the car is jolting around more.

I just had the rear bushes replaced and it made an amazing amount of difference.

What other stuff do you have done to the car?

34GeeTeeTee - I've found my orginal wheel alignment i got done at Bob Jane which was really bad service. They recommended i replace my front right tie rod end - which i did.

post-49206-0-87440600-1338853625_thumb.jpg

Pedders never gave me any alignment print outs.

Terry_GT-R34

What brand tyres? - Kuhmo Ku36 (brand new)

Tyre pressure is? - 32psi

No crack in any rims? - They are brand new Work Emotion XD9's

Suspension bushes and arms were checked by Pedders? I'd assume so, but can't confirm. I know that the previous own put new Polyurethane Bushes before i bought it last year.

Crappy roads where you live? I'm in Malvern, so i go down high st every day to work, high st isn't that bad.

Try another SAUer's rims for a run perhaps? Sure, if someone is willing to offer near Malvern.

LOLWUT - Well my wheels are brand new so i'm not sure if i'd need to get them balanced.

GTR-34A - Like i said they're brand new tyres Kuhmo KU36 18/30/265 all round, so i don't think that tyre age should be an issue.

Checkbuzz - I though Pedders were reputable? But maybe not, i'd prefer to go somewhere that's open on Saturdays so i don't have to take time off work.. The things i didn't like about pedders were that they didn't seem to know much about Jap cars, i even had to order my own tie rod ends from Nissan since they said they couldn't find any. lol

MrStabby - I don't know much about reading Wheel alignment results but maybe you can take a look at my results and see if i need more adjustment of my castor.

luke GTR - This is what i thought, but the thing that really pisses me off is that my mums Camry handles better in a straight line on normal bumpy roads like High St! Plus it feels unsafe, and jumps around a lot.

Duncan - Hmm okay, maybe i do just need to live with it, but it's just doesn't feel right that i paid 4k for new tyes and rims and now my car handles worse on normal roads. It does however handle much better around corners and at high speeds on a straight road.

Pezhead - It's got Apexi coil overs, and slightly lowered, probably only about 10mm - It's barely even noticeable over stock height.

Also, not sure if this has anything to do with my problem, but on full right lock when i'm parking i can hear the tyre rubbing against my inner guard lining. I think that it must have been taken out at some stage and not put back in properly because it's missing some of the clips.

Keen to hear any more thoughts and suggestions, maybe i should try taking it to another more reputable shop?

Yea pedders can be very shit, they are just franchises so there is no quality control.

New wheels/tyres should definitely be balanced, I'd guess that they were if you bought them from any half decent place, but you never know they might have just put the rubber on the rims and rolled them out to you. Might be worth asking..

I've been going to Barry Bangay, which given all the awards they have won I'd guess they are OK, but perhaps I should go to somewhere else to double confirm. Still, many things that could be worn or need replacing, so will book in again for them to check.

Anyway, I agree it feels unsafe, but even more so it *used* to be fine, or maybe I'm miss remembering :(

I'll be moving to St Kilda in a couple weeks so maybe if we both have issues still we could swap rims lol.

Edited by Thelen

34GeeTeeTee - I've found my orginal wheel alignment i got done at Bob Jane which was really bad service. They recommended i replace my front right tie rod end - which i did.

post-49206-0-87440600-1338853625_thumb.jpg

Pedders never gave me any alignment print outs.

That is a whole bunch of toe in...

I used to get fairly bad tramlining (255/40 R17 Federal RS-Rs with standard suspension). A set of coilovers, adjustable arms c/w rose joints and a wheel alignment later, I get hardly any!

My alignment is probably a little too aggressive for the street, but it hooks really well at the track!

Wheel Alignment 20120518.pdf

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • And finally, the front lower mount. It was doubly weird. Firstly, the lower mount is held in with a bracket that has 3 bolts (it also acts as the steering lock stop), and then a nut on the shock lower mount itself. So, remove the 3x 14mm head bolts , then the 17mm nut that holds the shock in. From there, you can't actually remove the shock from the lower mount bolt (took me a while to work that out....) Sadly I don't have a pic of the other side, but the swaybar mounts to the same bolt that holds the shock in. You need to push that swaybar mount/bolt back so the shock can be pulled out past the lower control arm.  In this pic you can see the bolt partly pushed back, but it had to go further than that to release the shock. Once the shock is out, putting the new one in is "reverse of disassembly". Put the top of the shock through at least one hole and put a nut on loosely to hold it in place. Put the lower end in place and push the swaybar mount / shock bolt back in place, then loosely attach the other 2 top nuts. Bolt the bracket back in place with the 14mm head bolts and finally put the nut onto the lower bolt. Done....you have new suspension on your v37!
    • And now to the front.  No pics of the 3 nuts holding the front struts on, they are easy to spot. Undo 2 and leave the closest one on loosely. Underneath we have to deal with the wiring again, but this time its worse because the plug is behind the guard liner. You'll have to decide how much of the guard liner to remove, I undid the lower liner's top, inside and lower clips, but didn't pull it full off the guard. Same issue undoing the plug as at the rear, you need to firmly push the release clip from below while equally firmly gripping the plug body and pulling it out of  the socket. I used my fancy electrical disconnect pliers to get in there There is also one clip for the wiring, unlike at the rear I could not get behind it so just had to lever it up and out.....not in great condition to re-use in future.
    • Onto the rear lower shock mount. It's worth starting with a decent degrease to remove 10+ years of road grime, and perhaps also spray a penetrating oil on the shock lower nut. Don't forget to include the shock wiring and plug in the clean.... Deal with the wiring first; you need to release 2 clips where the wiring goes into the bracket (use long nose pliers behind the bracket to compress the clip so you can reuse it), and the rubber mount slides out, then release the plug.  I found it very hard to unplug, from underneath you can compress the tab with a screwdriver or similar, and gently but firmly pull the plug out of the socket (regular pliers may help but don't put too much pressure on the plastic. The lower mount is straightforward, 17mm nut and you can pull the shock out. As I wasn't putting a standard shock back in, I gave the car side wiring socket a generous gob of dialectric grease to keep crap out in the future. Putting the new shock in is straightforward, feed it into at least 1 of the bolt holes at the top and reach around to put a nut on it to hold it up. Then put on the other 2 top nuts loosely and put the shock onto the lower mounting bolt (you may need to lift the hub a little if the new shock is shorter). Tighten the lower nut and 3 upper nuts and you are done. In my case the BC Racing shocks came assembled for the fronts, but the rears needed to re-use the factory strut tops. For that you need spring compressors to take the pressure off the top nut (they are compressed enough when the spring can move between the top and bottom spring seats. Then a 17mm ring spanner to undo the nut while using an 8mm open spanner to stop the shaft turning (or, if you are really lucky you might get it off with a rattle gun).
    • You will now be able to lift the parcel shelf trim enough to get to the shock cover bolts; if you need to full remove the parcel shelf trim for some reason you also remove the escutcheons around the rear seat release and you will have to unplug the high stop light wiring from the boot. Next up is removal of the bracket; 6 nuts and a bolt Good news, you've finally got to the strut top! Remove the dust cover and the 3 shock mount nuts (perhaps leave 1 on lightly for now....) Same on the other side, but easier now you've done it all before
    • OK, so a bunch of trim needs to come off to get to the rear shock top mounts. Once the seat is out of the way, the plastic trim needs to come off. Remove 2 clips at the top then slide the trim towards the centre of the car to clear the lower clip Next you need to be able to lift the parcel shelf, which means you need to remove the mid dark trim around the door, and then the upper light trim above the parcel shelf. The mid trim has a clip in the middle to remove first, then lift the lowest trim off the top of the mid trim (unclips). At the top there is a hidden clip on the inner side to release first by pulling inwards, then the main clip releases by pulling the top towards the front of the car. The door seal comes off with the trim, just put them aside. The the lighter upper trim, this is easy to break to top clips so take it carefully. There is a hidden clip towards the bottom and another in the middle to release first by pulling inwards. Once they are out, there are 3 clips along the rear windscreen side of the panel that are hard to get under. This is what the rear of the panel looks like to assist:
×
×
  • Create New...