Ok so I'm about 1300 miles through brake in and I have quite a bit of smoke coming from my tail pipe. It smokes a lot at idle and at first it didn't smoke while driving but started to shortly after. I'm very confused cause the car runs very well knock is ok and A/F is also ok. There hasn't been any change in the factory oil pressure gauge as well. My main concern is with the motor. It's a fresh rebuild with aggressive street port and seems that everything is running well. The turbos are BNR stock rebuilds that I bought off another forum member that said they were never used. Now from what I've read from the past stock rebuilds can be problem-sum and from looking back at his posts these were rebuilt years ago and sat around. If it's just the turbos no big deal I'll buy a replacement (not sure if I'd go single or which one, either). My brother and I took off the crossover pipe and there was no oil. So then he popped out the wide band O2 sensor to check to see if there was oil there, and nothing. We were hoping that the seals on the turbos just weren't holding up and shooting oil into the intake or out the exhaust causing all the smoke.

1)Could it still be the turbos?
2)Is there a better way to tell?
3)If it isn't the turbos, what else would cause this?
4)What other checks can we perform?
5)Is my motor or some seal blown?

It's still under warranty but I don't want to go through everything again to send it out. Especially since my brother is the one that does all the work and has a ton of his own **** that needs to be done. I would have no problem just doing some BNR stage 3's or a single turbo upgrade, that would good news at this point.

Please, any help or insight would be greatly appreciated, right now it's like my brother and I are sitting in the dark.

 

From a post in the past all I can see is possible oil control rings if it's a motor problem.

 

who did your porting? if done wrong the oil control rings could over lap the ports letting oil into the intake path

 

I'm assuming its blueish smoke and is therefore caused by oil, correct? When I had an oil control ring go bad and couldn't tell if it was the turbo or the engine, I just took the turbo off and started it up. I have a single so it was pretty easy to do, can you take your twins off and just start it up? if it still smokes its your engine.

 

Oh, I forgot to update this sorry. Banzai-Racing built and ported my engine and I have NO complaints on this engine. My brother and I took the twins off and there was fluid on the rear turbo so it was a turbo problem. I didn't feel like messing with the twins so I ended up putting a GT35R on the car.

 

Where is the hose that is used to atomize your primary injectors connected to? It should go to an atmospheric pressure area like right after the air filter.

It will smoke badly at idle if you connect it to a vacuum source like the manifold beyond the throttle body.

Barry

 

Correction-should read: Where is the hose that vents the oil injectors connected to? It should go to an atmospheric pressure area like right after the air filter.

It will smoke badly at idle if you connect it to a vacuum source like the manifold beyond the throttle body.

(Sorry about the fuel injectors info. ........ They should be connected to the turbo outlet before the intercooler.)

Barry

 

Things are all good now! I've been enjoying the car for a couple weeks now with the single turbo and a good tune.