Jump to content
The mkiv Supra Owners Club

No Boost and smoke!!!!


Matt B

Recommended Posts

All,

I need some advice please...?? I got my car back from Dude on Thursday after having a FMIC amongst other things fitted. Anyway when driving I was not getting anything above 0.5bar boost and so I checked hoses as per Dude's advice and sure enough one had come off.

 

I've since replaced the hose and made sure it was secure. Went off down the road hit 1.2bar....:D Great I thought, however the next time I tried I had no boost at all (Won't go above 0)

I checked the hoses again but can't see any loose ones. All seem secure. :)

 

The worst thing is the car is smoking all the time once warm. Does not happen when cold but once warmed up I get big puffs of Blue smoke on lift off and when accelerating, even on tick over it smokes a bit. :eek:

 

So I wondering if my blowers have gone or what else it could be???

 

Any advice is greatly appreciated as I'm very concerned....:(

Link to comment
Share on other sites

Originally posted by Matt B

Any advice is greatly appreciated as I'm very concerned....:(

 

 

Have you taken it back to Dude?

 

That would be my first step if it worked OK prior to it going in, I'm sure he'll be happy to take a look over everything.

 

What "other things" did you have fitted at the same time?

 

It's not something as trivial as fuel cut as a result of mods is it?

Link to comment
Share on other sites

Cheers guys,

I've spoken to Dude a couple of times so I know what I'm looking for now. I'm gonna take out the drivers lamp to check the hidden clamps.

 

I was just a little spooked by all the smoke as well. Did not think the hose being off would cause smoke???

 

I just don't wanna have to drive all the way back to Dude cos it's like over 100 miles from where I'm staying at the mo.

Link to comment
Share on other sites

Bad news I'm afraid....:eek: I've had the drivers headlight out and the battery. All hoses are secure and have been re-tightened...

 

I can't even drive it really at the moment as it's smoking really badly. People were flashing me earlier after I took it out to check...:(

 

Really can't understand what's happened??? Everything else looks and seems fine...

Link to comment
Share on other sites

Originally posted by dude

Any luck Matt if not ive got to come up and meet Terry to pick something up i could swing by and take a look if you like , let me know and we can see what we can arange .

 

Dude:flame Dev

 

Dude,

If you could give me a call mate I would really appriciate it... Trouble is the cars in Hutton by Brentwood at the moment...

Link to comment
Share on other sites

you not done a piston in have you. i was in a mini convoy with mate in his skyline other mate in uk spec supra me in mine and a escort cossie and mr2. mate in skyline shoots off at high speed other mate in uk supra gives chase and going round a sharp bend at high speed a big cloud of white smoke starts coming out of supra, i thought he had blown a turbo but in the end it was a piston.

 

you you have many safety and cooling mods??

Link to comment
Share on other sites

Originally posted by MONKEYmark

you you have many safety and cooling mods??

 

Not sure exactly what you mean mate?

I'm running a S-AFC to control fueling so that should be fine and a AVC-R to monitor and control boost.

Also got a restrictor ring to limit it to 1.2 bar.

Cooling was standard J-spec until the FMIC was put on...:thumbs:

 

The smoke coming out is deffinately Blue

 

Cheers.

:)

Link to comment
Share on other sites

I am finding that hard to believe, you said you boosted fine to 1.2 bar, then the second time you only had 0 bar.. didnt you feel the car being hesitant? or see a cloud of smoke the second time round when you got 0 bar? :conf:

Link to comment
Share on other sites

Matt, what other work did you have along with FMIC. Blue smoke means your burning oils somewhere, and is most probably where you have blown your turbo seals. To be honest mate I wouldnt drive it until you have had it checked over as if your burning oil you could be in danger of using oil your oil and seizing your engine.

 

My turbos blew after going FMIC, and walbro/FSE, and I had blown turbo seals, which would have pretty much dumped all the oil within 30 miles.

 

Feel for ya man ;)

Link to comment
Share on other sites

Whow knows mate, your now diving into the realms of serious mechanics.

 

What do you mean by "specific flow enhancing mods" ????

 

And "backpressure reduced" ???

 

Are you sayig this happens when say going FMIC or Walbro/FSE ????

Link to comment
Share on other sites

I don't know if something like an FMIC will have the same effect but I suspect the turbos on my car were in need of replacement shortly after I bought it. At the time it has a standard exhaust with CATs and I got no smoke, no oil loss.

 

I added the NuR and decats which reduced the back pressure - apparently this then had the effect of failing to keep the turbo oil seals tight (CW helped diagnose this in an old thread - he suggested stuffing scouring pads up the exhaust to get the backpressure back and test for smoke).

 

Just wondering if the FMIC has helped to highlight the issue further?

Link to comment
Share on other sites

I know i'm an outsider of the supra world but this thought did cross my mind as a cause:

 

You said originally that a bad hose was causing you to only be able to make .5 bar,(now i'm assuming here it was a boost hose) because of this, i'm pretty sure that the turbos would be running 100% all of the time to try and make the desired boost (wastegate actuator would never recieve enough pressure to open the wastegate) so if you were throttling it hard, then the turbos would have been running way over the top, which caused seal failure.

 

Just an idea, i'm probably way out but it's worth a thought!

 

Charlie

Link to comment
Share on other sites

Please sign in to comment

You will be able to leave a comment after signing in



Sign In Now
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.