Torque your Nuts!
 

No you pervs, not those nuts. I meant your lug nuts. They should be torqued to 80ft/lbs and mine were all over 100!! Use a torque wrench and use the star pattern.

BTW, I have to say I love Sears!! My old Craftsman torque wrench only went up to 75lbs. That was fine for my MR2, but my Z needed one that went to 80. I was just going to go buy another one for $90, but my buddy told me to just take my old one back. It was about 2 years old and I felt kinda funny, but guess what? Without even batting an eyelash, they gave me the full value for it and I only had to pay the difference. I love Sears when it come to tools.

You would think Nissan could get the torque right. Everytime I get new tires mounted, the first thing I do is re- torque the lug nuts. I guess they make impact wrenches that regulate torque but tire places apparently never use them.

hey...I have the complete service specs for the Z in case you want to know like the valve lash or some stupid thing like that...but maybe thats how you knew about the 80lbs anyway, huh?

Torque Question
 

What happens if you set the torque too low or too high for the lug nuts?

I like to talk mine to 350lbs. That weigh they'll never fall off!!!

:icon4: :icon04: :icon6: :confused: :D :o

Also check your tire pressure, the dealer had to let a lot of air out of mine, says for some reason they are always over inflated when delivered.

Re: Torque Question
 

The #1 way to warp your rotors is from overtightened lugs. Yet another reason to avoid your local quickie lube. Impact wrenches are fine for lug removal, but use your torque wrench for tightening.

Re: Re: Torque Question
 

With the clearcoated wheels, I've found impact wrenches bounce around inside the lug nut cavity and chip the **** out of the clearcoat on the rim. If any, and I mean ANY, salt gets between the clearcoat and the aluminum, forget it. Eventually the wheels will be screwed up forever. The salt will really do a number on aluminum. So, the answer is, "Hand remove and replace3" lug nuts. If the shop won't do that for you, find another shop. Your wheels deserve the midas touch.

Re: Re: Torque Question
 

they come in off the truck w/ about 50PSI in the tyres, and like 55psi in trucks and SUVs. but there is no set pressure given by the factory as to what to deflate to, so its the technicians choice. Personally, I deflate all car tyres to 32psi and trucks/suv's to 34psi, just incase you cared

only 32psi
 

I'm not sure what the recommended setting is for the 18" tires on the Z, but I would think it's higher than 32psi.

If you set those 18"'s at only 32, you're likely to damage a rim.

I find it funny (i.e., entirely illogical) that you have one set pressure for all "cars" and one other for trucks/suvs. Air pressure is a factor of the wheels, tires, and desired handling; not whether it's a car or truck or whatever. Sheesh.

Don't hold me to it, but I think I read somewhere Nissan recommends 35 psi per tire.

Haven't seen it first hand, but I think the tire pressure is indicated on a sticker either on the door jamb, or inside one of the storage cubbys inside the console.

36psi rings a bell for the 18's.

Re: only 32psi
 

lets take a look at that last statement. I'd say about 90% of the people who come in and buy a new car don't care about performance. They're not going to auot-x the car, or even drive it fast thru turns. It will just get the from point A to point B. What about the other people, you ask. the ones that will care about performance. Then they're smart enough to know that the dearlership has no clue who is going to buy the car, that the dealership sets the tire pressures for the overall people. A blend of comfort/wear/gas mileage/etc. These people will then know to set their own tyre pressure for how they drive. And considering that over 50% of the cars that come in for service have tyre pressure set at about 20psi, 32psi is much better. And, how many 18inch rims come standard on Nissan? I should probably know the pressure setting by heart seeing as how the come as a base on almost every single car (read: None, other than the new Z). But since you feel that you need to give me hell about it, then what pressure should I set the tyres to?

Hey Raceboy I like your signature, LMAO. Vin Diesel is GAY!!! Hahahahaha. :D :D

Mine were lowered to 37 psi by the dealer and they go to 39 or 40 when they are warm according to the computer. Is that about right?

Nissan says 35psi all around. I would recommend 34psi front and 36-37 rear. This effectively increases rear roll stiffness and helps cure some of this car's inherent push.

nice pic
 

imrunning 38 all the way around and there the 17s the car handles great

Re: Torque your Nuts!
 

What size socket to use on the lug nuts?

when i was checking out the service manual, i remember seeing the torque setting for the wheels to be in between a certain range. i believe it was something like 73 to 93 ft-lb. do any of you guys know whether or not it's okay to set the torque to anything within this range, just as long as the other bolts are consistently set to the same torque? or is 80 ft-lb the best setting, as stated by raceboy? thanks

The service manual says 73 to 93 ft-lbs. Anything in that range is fine. 80 is just a nice even middle number.