All,

I've got the car in the shop installing PTG1000 turbos and a bunch of other goodies. The car just hit 60,000 miles and I have not experienced any issues with oil leaks or anything else prior to install.

I wanted to preface this post by saying PTG has been great from a customer service perspective, but I wanted to get some insight from fellow members that have gone through the install and might be able to chime in with some thoughts on what might be going on, as I know those guys are busy and I don't want to overly burden them with the issues I am having, and with a 3hr time zone difference, sometimes it is hard to coordinate schedules for diagnostics. See below for a list of work being done vs. what has been done already and then an explanation of what is going on.

Work being done:
-ModalWorks transmission split cooling + 3-piece radiator kit
-HKS plugs and new coils
-PTG1000 turbos
-PTG Race Valves (BOV)
-PTG HPFP
-New brakes/rotors
-Weistec methanol injection

Previous mods:
-Weistec VTA
-ModalWorks intake
-RedStar catted downpipes
-Stage 2 local tune
-PTG TCU tune

I am experiencing a pretty substantial oil leak which appears to be coming out of the breather port at the turbo inlet on both the driver's side and passenger's side. My shop spoke with PTG and it's pretty much been confirmed that there are no issues with the turbos.

This appears to be PCV/CCV related and is present at idle (no boost), but we haven't exactly been able to pinpoint the issue due to not running the car past its "cold start" process in fear of damaging the turbos or anything internal with the oil leak. The shop had to fabricate a spacer on my ModalWorks intakes to fit into the new coupler that connects to the turbo inlet, and it doesn't appear that the spacer is blocking the breather port. We looked at the oil return lines, and they don't seem kinked or bent in any way. We don't want to start replacing parts unnecessarily like the air/oil separator and CCV/PCV system if that's not the issue. The car has not thrown any codes.

Has anybody experienced this with their PTG or other turbo install? What advice do you have for things to double check and test for? Shoot me your questions if you have any and I will do my best to answer them. Thank you in advance for any help you have to offer!

Including some pictures, though I am not sure how helpful they will be.

 

https://mbworld.org/forums/coupe-roa...-lots-oil.html

 

Thanks. I had read through this thread previously and have hypothesized about the oil return tubes as well and was my original thought. The shop checked for kinks/dents/cracks in the oil return tubes and everything looked nice and tight and oil is not leaking out of the turbos, but instead the breather ports in the coupler attaching the turbo and intake, as if there's too much pressure in the crankcase or venturi vacuum at idle.

Shop pulled intake/coupler off so it was just open PCV and turbos, cranked it up, and no oil was seen coming out of the turbo. All o-rings and gaskets were replaced.

 

I ran into a similar situation with my supercharged mustang 5.0 . After installing the blower the shop took it for a spin and when they came back they was oil everywhere coming out from the breather This car only had 2000 miles and never had any issues prior . What it turned out to be was the oil was too thin and under high boost it was pushing the oil past the rings . We were using mobile 1 synthetic at the time so we switch to a different oil and the problem was solved , never had a issue after that

 

This is helpful. My shop used 5w-40 LiquiMoly I believe at my last oil change. I personally thought perhaps they may have accidentally overfilled the oil (different shop), but wouldn't I have noticed this before upgrading my turbos? Prior to this, no oil was seen in the turbo inlets or intake tubes. I am unsure if this shop has checked the oil level, but something to look at, I suppose? The odd thing is, I haven't even gotten to the test drive phase or dyno phase yet, so there's been no oil leaks at boost as of right now, just idle. I could maybe understand some of these issues under high boost, etc.

 

In my casei it wasn't the oil level it was just the oil itself . Basically it was just too slippery and under high boost pressure in the cylinders and it would push the oil past the rings and out the PCV . I thought they had blown the motor there was so much oil but the mechanic there is super smart and said lets change the oil out , which he did , and then took it for another drive and nothing ...it was dry . Never had another issue just couldn't use mobile 1

 

Yeah, I gotcha. Perhaps it's something to bring up to my shop as well. Thanks for the input.

 

Shop did a sh*t install get them to sort it out and replace the return lines

 

Could be that you are now getting more crankcase pressure. High milage engine running big boost, Pushing more through the PCV system.

 

Thanks for the input. Yeah, we considered this; however, the car was not run up at all so there was no boost.

Turns out that the fuel pump was defective and dumping fuel. We drained about 6-7gal worth of fuel/oil and will be running several oil changes to get all that fuel out. PTG has been great and stood by their products and are sending a new pump and spark plugs. I’ve never seen anything like it, and neither has PTG, but I’m glad the issue has been found. Will report back when it’s all buttoned up and ready to go.

 

Glad to hear you found the culprit. You’re about to have an absolute animal on your hands. What fuel are you going to be running and what is power target?

 

Thanks, man! I’m only running 93 but planning for 750-810whp with methanol depending how the trans feels. If it feels okay, I’d be interested in trying to get to 850whp or so with methanol. No plans for E85 or anything like that.

 

what was your reasoning to go with PTG HPFP if you’re only running 93? You and I are likely at the same power level then (I have stock HPFP, otherwise the same mods).

 

Based on some of the conversations I’ve had with a few shops, it seems that the M177 fuel system is pretty restrictive over 700whp. I mostly did it for some added reassurance and flexibility if I wanted to run alternative fuel types in addition to the methanol, and potentially be over the 900whp mark if I decide to rebuild to the War Viking transmission or something similar in the future.

 

JEASUS! When you said defective pump I had no idea what I was gonna see in the video.Thank god you didn’t loose your engine , bloody good save

 

Video was unreal what happened there mate I'm so glad you guys caught this one.

Here I was thinking it was the return lines but man.... I had no idea