when i dive my car normaly it runs fine no problems no visible smoke
engine feels strong as ever...

i did couple of hard puls on the high way 4th gear at WOT at full boost 12psi
i get smoke coming out

i run a full 3" exhaoust no cats

and water injection starts at 4psi fully open at 12psi

so i am thinking its becouse my water injection

there is no sign on missing coolant or more oil consumption then normal

 

What is your full mod list...

 

please tell me you're not running the stock ECU.....

 

Garret GT35R turbo kit
tial 44mm wastgate routed to downpipe
tial 50mm bov
greddy m-spec FMIC


Apexi power fc
Datalogit
AEM true boost
AEM wide-band
AEM Water Injection Kit
HKS twin power


4x850cc injectors
cj-motorsports assembly
single bosch 044 fuel pump
6an lines and fittings
high-flow fuel filter

everthing is new on the car 2-3k

car is tuned


its will only start smoking at full boost and high rpm 10-11 AFR

i let off and smoke goes away
rev it couple of times as i am rolling in "N" and goes away faster



i know that Water-methanol injection also acts like a steam cleaner in the combustion chamber preventing carbon build-up... so could it be working that well

or its because i got straight pipe and running rich

 

Sounds like the seals in the turbo possibly or your just running rich.

 

I'm running a straight exhaust on my twins and since I'm really rich I see a good amount of smoke from WOT at times.

 

Is the car cutting out or does it accelerate smoothly? What is you oil pressure like at idle, cruise, WOT?

 

Are you talking a "puff" at turbo transition or at high RPM shift? If you do a few runs back to back, does it diminish or disappear?

You could be rich, or just be blowing out the carbon.

 

accelerate smoothly no oil presure gauge cant tell
are you thinking oil control ring
i do not burn significant amount of oil

no mising oil or leaking....intercooler pips are dry way les oil consumption then when it was stock...



puff, and huge flames all the time at night its like i am putting on fireworks


i am also thinking that it just running rich, or just be blowing out the carbon - as car sits most of the time

i got 10afr at idle -5th gear 15-16afr under vacuum cruising around 65-70 mph - at boost car gets back down to 10afr

 

What oil restrictor are you using with the GT35R?

 

the one that come with rx7store kit

 

Sounds like the car needs to be tuned, badly.

 

i chack the pipes about a week ago and nothing no oil....

finaly at home 1min ago got the chance to take off the pips again and WOW its the TURBO

brand new i only put 3k on it ... that didnt last long
i am disappointed in garrett

oil in bottom of air filter and intercooler pipe

no shaft play

so seals inside the turbo must have gone bad

i use mobil 5w30 non-synthetic

 

is there any kind of warranty on this turbos...

were could i order ripair parts...

 

It could also be a PCV problem. Oil smoke, oil in intake, etc., can be symptoms of that, also. How do you have that hooked up?

Link to useful thread: https://www.rx7club.com/showthread.p...&highlight=pcv

 

I get some smoke when hard on the throttle after easy crusing for an extended period. I think that's normal, just blowing off the rotors (I also pre-mix). When you stay in the throttle repeatedly, it should go away or greatly diminish.

 

I hope English isn't your first language. Please tell me it isn't.

 

No English is not my first language ...I am Serbian

 

Why'd you feel the need to take time out of your day to post that? Why post if you have nothing at all to contribute? The guys user name is SerbRX7, did you really think English was his first language smart guy?

Anyways, my car smokes a bit too when shifting high up in the revs. It may be the tune is too rich.

 

What color is the smoke, that will make things much easier to diagnose.

 

Some amount of oil in the intercooler piping is normal. I would suggest before jumping into pulling and replacing/rebuilding the turbo that you have the engine re-tuned by a knowledgeable rotary tuner first to see if it is a rich condition. If that does not fix the problem, then you may consider the turbo. Way too early for the turbo seals to be failing, however.

 

Hey Serb i told you that you need a good tune...What is happening is that your car is running real rich so when your on full boost, its the cloud of smoke from your exhaust. Who tune your car, trust me there is no rotary tuner in Rochester. Don't bring it to the guys at EMS Motor sport. Also If you say that RX7store tune it, did you bring your car to there shop. Sending your ecu and telling them what mod you have doesn't work. If you want I could set you up something here at T N R....Call me or text me when you could come down for a few hours...You could come down early Saturday and leave Saturday afternoon or Sunday Morning...Let me know..

 

If it's just a puff, and/or flames, it's probably not oil, it's fuel... as in blowing carbon and/or lighting unburned fuel rather than oil.

Get thee to a tunery.

 

Some grey smoke (fuel) under hard throttle seems common. Most cars are tuned for low 11s AFR under boost which is still incredibly rich by most standards.

 

grey/black = fuel
white = coolant
blue = oil

also low 11 afr at wot is about par for boosted vehicles now. but a 10 at idle is crazy rich, mine would idle in the high 11s and you could still see the grey smoke from the unburnt fuel.