Slight history for those who don't know, my car has been out of service for about 5 or 6 months due to a blown motor and slipping trans, I just recently got it back and what I notice is that after 100mph the car starts smoking, like a very noticeable trail of blue smoke, it doesn't feel like a loss of power or nothing wrong, if you were to never look back you wouldn't know that its smoking... I'm sure its some kind of oil issue, but what can it be?? What can I do to check?

 

Compression check. That is all. Smell funny too I bet?

 

Because you need to go 100mph all the time...

:P

Its probably just at higher RPMs in general, not just over 100mph..

 

Naw not really any funny smell, smell of oil really... it doesn't smoke at high rpms as it starts in 3rd gear really... its crazy... do you guys think that when my last motor went the catalytic convertor went too?? I do have a stock cat on it

 

I guess it's possible that if the last motor was blowing oil it could've built up in the cat and sat there, maybe it's burning out now with the RPM's being high for a longer period of time? Just throwing it out there...Wouldn't hurt to do a compression check and a CLT just to be sure it's not currently burning oil

 

there's genie in the vq...you gotta rub it the right way

 

I sure nuff will... ill just swing by the mechanic tomorrow when I get off and have them change my cat as I have a high flow cat just sitting in my trunk

 

personally is sounds like maybe you got a few bad rings

 

blue smoke... maybe head gaskets

 

head gasket and or rings

 

Is this a used engine?

 

HG wont do it (blue), but bad rings or oil seepage through the valve seats will.

 

what the hell is it with your luck, but blue smoke is rings or head gasket...

 

HG wont blow blue smoke.

 

HG will shoot a thicker white smoke, since coolant will leak into the combustion chamber.

It's probably the residue from your last engine in your stock cat. When I installed my test pipe/cat-back, we had to weld a wideband bung in, and a tiny bit of slag leaked in there, and it shot a fair bit of smoke out at high speed/WOT. It's gone now.

 

Blue smoke at high rpms is usually rings if it is coming out the exhaust. Bad valve guides usually show up as a puff of blue smoke when you start the car. You could also have a small oil leak somewhere that is landing on a part of the exhaust and at 100+ appears to be coming out of the tailpipe.

 

Yo **** got da AIDS man......

 

blue is some sort of oil burn off if its coming out the exhaust, unless u blew and axle seal and its some how getting on ur exhuast in 3rd gear only

 

im on the gasket/ring train... cat is unlikely - if it is cat buildup though you would notice it start to go away in maybe a hundred miles at most...

 

if yr askin "what to check?" start with yr oil keep a constant eye on it to see if u burn more than a vq should lol...if not then oil could b built up in yr cat...if yes then yr engine is all done....if the engine was smoked then it should smoke at high rpms..not just at high speeds.

 

Seafoam will clear it right up.

 

The car doesn't somoke at high rpms, I will redline 1st and 2nd and nothing happens.. as soon as I'm in 3rd then I can see it in the rearview... WOT in 1st and 2nd won't do anything, I only have a code for p0031 but I'm sure I wouldn't get a code for anything doing with this problem... I will be changing the cat this Monday and possibly do a compression test to see... ill go search on how to seafoam

 

Yes

 

My passenger side axle is fcuked.... I bought a new driver side axle thinking it was that side that was busted, forgot that it was the passenger side

 

Weird... SO your saying its slower.....

 

Well its slower thanks to no SSIM... anyways I just got off a highway from a female move.... downshifted to second and floored it, nothing happened, downshifted again to 2nd and floored it the shift to 3rd and sure nuff at about 5K rpms it started smoking, stops immediately after I lett off the gas pedal

 

I think I've found the problem...

 

o.k sooooooooooooooooooo???

 

according to datdude20 he said he was smelling tires i do have the nismo wheels with 9.5 at the rear with 245/45/18... it does rub, could that really be???

 

dont ask me how it rubs but it could be the slightest of bumps and it rubs

 

It's the Flux Capacitor for sure...

 

not from rubbing..... no way.

 

car squats

 

Roll your fenders.

 

id put money on it that its not the tires rubbing... do you see any marks?

tires need to rub a lot inorder to get that much smoke to come out.. I know from experience. .

 

a year ago the motor blew in my WS-6, i got a used motor from a friend(dont know how long the motor had been sitting) and when i would floor it with the new motor a slight blue smoke would come out.. it went on for abt 2 months then it went away.. must be something about a motor sitting.

 

Same here, a slight blue smoke... I tried taking it to the shop and the mechanic was off today to my luck... ain't that suttn not surprising

 

It definately isn't the tires as I just put on the 350Z AE wheels and it does the samething... I have to probebly wait until Thursday now smh... oh 350Z wheels up for trade

 

Trade for a set off g35s? :P hehe.

 

I'm looking to get some $$$... I'm more interested in the stock 17's