WTF is wrong with my car damnit.
 

Ok, among all other problems, my car is being a fucking pos, when I am at WOT, at top of 3rd and on, it just starts to whine, and the turbo just dosn't seem to be building anymore boost at all. I can actually hear it whining. It makes a kinda high rumbling noise, it it really pissing me off, I just lost to a fucking 5.0 with header's and an intake! What the hell! I used to beat 5.0s all day long... even before my exhaust. WTF is going on!!! I think I am going to just get a S5 turbo/mani and hope for the best...

And no, sorry I don't have a boost guage, so I don't know exactly what is happening to the boost... also my idle get's funky sometimes... I don't think is a vac leak though, because the boost is strong all through 1st and 2nd gear. During 1st and 2nd gear i was just walking this mustang, shift to third, still beating him, top of 3rd and my turbo(i think) just shits!!

I can't wait till I get more cash to fix all this little crap that is pissing me off so much.

It sounds to me like either your turbo is starting to let go, or you've got something that's not quite tight enough. You build less boost in 1st and 2nd gears than you do in 3rd, and something might just be loose enough to open up a boost leak when you hit full boost. Either that or your turbo's worn out and is losing steam once it gets heated up.

Either way, I'd try to stay out of boost until you fix the problem. In the first case, too much overspinning of the turbo will make sure that the second case actually happens. :)

Brandon
BR7 Racing

The guy I bought my car from said my turbo has an oil leak, and my car eats oil, but I looked to see if I got blue smoke under boosr, and had friends look in cars behind me while I was driving under boost and I saw nothing to tell me it did have an oil leak, but I am jus gonna get the S5 turbo/mani and hope for the best now, I just need to sell my other 7. Anyone wanna buy a wrecked fb with streetport/header's? will run... good compression barely any km's on rebuild!

blue smoke = gas
white smoke = oil

I thought white smoke was water and black smoke was oil?

Its buring oil that gives you blue smoke and water that gives you white.:D :D

Black is gas,
white is water,
blue is oil.

It's hard, at times, to see the difference between oil and water, since their colors are similar. The big clue is how long they hang around - oil smoke will hang in the air for a while, but water smoke tends to disperse pretty quickly.

Brandon
BR7 Racing

Purple is babies. You sick bastard. :D

Oh no! I've been discovered!

(runs away)

Brandon

Hmmm... ok, not that we have figured out which smoke is which... what do the rest of you guys think is wrong with my car.

Like I said; it's either a big boost leak which is overspinning your turbo, or your turbo's bitten the dust.

Brandon

Yes, I think that is probably it, but I just wandered if anyone else had an opinion, to see if I had any other options. Thanks though :)

someone could have pood in your intake!!!

Yes ...uhm, someone could have, but I am sure no one did... because I don't normally let people poo in my intake.

I'm willing to bet your turbo bearings are gone, but that's just me ;)

OR, you could have the problem I did... The Twin scroll actuator froze up in the closed position.

My boost used to drop off in 3rd to under 5 psi. But after I wired the actuator open, I can make 10 PSI all day long.

Jarrett

That usually doesn't cause a whining sound though.

No, the whining sound was the chick in the passenger seat. Still havent figured out how to eliminate that sound...

Jarrett

Are you sure you're just not mistaking the scream for help to get away from you? Damn post whore rat! :)

lol, hmm... well I didn't have a chick in my car at the time, so I don't think that's my problem... allthough that does explain a few other problems!

And what exactly does the twin scroll actuator do? I never actually found that out.. I knew everyone hated it... and always removed it.

It's supposed to make the turbo spool faster (bah) But commonly just makes boost fall off, wire it open as the other rat said. IF it doesn't fix your whirring sound, then it's the turbo's bearings more than likely.

yeah, I am the other rat!

Hmm.. I will do a search on it, and see what I can do. Thanks.

remember smoke can also be caused by too rich or to lean

welp if its running too rich or too lean how would u fix that? um......... sonic u crack me up and rx7 dude nice come back!! damn birds always pooing on everything!!

And I said I don't see any smoke, so I am not running too rich or too lean... obviously.

Rx7Nub,

your avatar is disturbing...

Reminds me of jrat's highschool picture! Anyway..... ;)

:wtf1:

What a fucking moron. It's hard enough to grasp the concept that someone actually had those words pop into their mind in response to this thread, but to think they actually took time to type it? :confused:

Oh, and while Im ranting, here's something else to consider. Why is it that you see a lot of posts about problems encountered while going WOT, racing X vehicle, shifting at 8krpms, etc., and in the same post read how the same person has no money and has done little/no maintenance to said car? I mean, I dont know about you, but if I were broke ass and knew it, I sure wouldnt be beating on my car, even if it is an amazing marvel of engineering...it is a 15 year old car that can and will break! If I were in that situation, racing and hellraising would be far from my mind, and Id be driving that bitch around like your mother's toyota corolla until I knew I had some jack to put back into it when I broke something.



IN response to the real question, here are some possibilities.

1) turbo shaft has sufficient play to allow the wheel to hit the housing. This would make a squealing sound.

2) intake piping (from turbo to engine) loose or cracked...could be just tight enough to hold an idle/vacuum and some boost, but under certain higher levels of boost start leaking.

3) bad blowoff valve, same as above. never seen it but still possible.

4) vacuum hose broken/leaking somewhere, and when subjected to boost leaks worse, also causing the sound.

He is right!

Geeezeee i think i hit a nerve. Sorry kevy.... didnt mean to piss you off i forgot you were on here. Did someone poo in your intake????

Oh sheit..

sounds like a screwd turbo or a creeping wastegate

Man, this is a tecnical forum (at least this section). Sure, sometimes we play around, but not until the technical issue has been laid to rest. What the HELL kinda reply is "poo in your intake"?? What TF?? Are you one of the guys from MTV jackass?? :D