Hey guys finished breaking in my new rebuilt engine on my fd (2000 miles with all oil changes).

Under boost on higher rpms sometimes I get a little puff of white smoke in between shifts or letting off the gas.

Car has non-seq twins ported wastegate and pettit unlimited ecu. 9psi with catless turboback exhaust.

Maybe it's just from being catless. But it'd be great for some feedback and to update about having my FD running again.

Not driven aggressive yet but I just wanted to take a precaution.

 

Is the car tuned? what mods since it was last tuned? miles on the turbos? what injectors?

 

Pettit unlimited ecu... No tune as it's an ecu. Power mods are greddy intake, non sequential twins (50K), full exhaust. I'm thinking twins are going out. Stock injectors

 

So it's letting off enough smoke that you can see it in the rearview mirror? Are you sure it's a white color?

 

Yes it's visible in the rear view mirror and it is white

 

White is water vapor droplets (start-up or cool weather condensation, or coolant seal leak into combustion chamber). Light blue is oil (possible turbo, pcv, oil ring problems). Gray is too rich (carbon from partially burnt fuel).

Are you losing any water from the cooling system? If so, you may have a coolant seal problem.

 

Have you checked the compression since break-in?

 

Coolant temps are great with new vented hood and removed ac condensor. I do have the pettit ecu and high flow fuel pump. Maybe it's grey and running rich.

No loss of coolant at all.

Haven't checked compression at 2100 miles

 

Pettit ecu= extremely rich conditions. It is likely fuel smoke or possibly turbos oiling a little. Most sets of twins smoke these days.

 

Thanks. If these twins are done, I'm just going to go single.

All info is appreciated. If anyone else would like to chime in. It'd be great.

 

2250 miles on the rebuild and this is still happening at 5K+. Im wondering if its the viscosity of the oil I'm using, the twins, fuel or what. No loss off coolant at all. No overheating. :/
This is starting to concern me. I don't know if its a vac line that popped off causing this or what...

 

Im will actually be in Long Beach later today if you want to meet up for a couple mins. I can let you know what is going on.

Give me a call at 865-385-5622. Im in Ontario at the moment so it will take me about an hour to get down there. I can meet around 6 or so if you would like.

 

My hat has to come off to David (Djseven). He took his time while in town to meet me and scout for the issue. He was a great help with an open book of excellent advice/info and solved my issue in less than 2 minutes. It was really awesome meeting him and I plan to do business with him in the future.
Thanks Again David!!!

 

so what was it, pcv valve?

 

Dem that sucks you just told us how he helped you out and figure out your problem but what the hell was the issue and what was the fix? PLEASE

 

sounded like it needs better crankcase breathability.

 

my bad. Your guesses were right. Bad PCV valve and needed to vent crank case pressure.