17' 6.2 Whipple Supercharged Catch Can excessive oil in catch can

[Tanner Smith]

I have a 2017 GMC Sierra 6.2 with a whipple charger and a mighty mouse catch can. I noticed that within 100 miles i had about 3 ounces of oil already. Is that a lot of oil or is that normal? That seemed like a lot to me. Truck has 55k on it and the charger has only been on a few thousand miles. Could the piston rings already be shot and oil is escaping past the rings? Thanks

[Tanner Smith]

Also would it help if I ran 5w-30 oil?

[CamGTP]

If oil was making it's way past the rings, it would be burning it and going out the tail pipe.

 

You might have a situation of extra crankcase pressure that is causing the catch can to pull in more oil.

 

What does Whipple have to say about this, if you've talked with them?

[diyer2]

You're warm weather location I would use a heavier oil and not worry about it. Try different weights. 

[Tanner Smith]

1 hour ago, diyer2 said:

You're warm weather location I would use a heavier oil and not worry about it. Try different weights. 

 

8 hours ago, CamGTP said:

If oil was making it's way past the rings, it would be burning it and going out the tail pipe.

 

You might have a situation of extra crankcase pressure that is causing the catch can to pull in more oil.

 

What does Whipple have to say about this, if you've talked with them?

I have not talked with them about it. I will give them a call and see what they say. 

[Tanner Smith]

1 hour ago, diyer2 said:

You're warm weather location I would use a heavier oil and not worry about it. Try different weights. 

Yeah i am going to try a 5W-30 soon and see if that helps. 

[lucas287]

I second the added crankcase pressure. Maybe look into the LT4 pcv setup and see if there's a difference?

[M1ck3y]

12 hours ago, Tanner Smith said:

Yeah i am going to try a 5W-30 soon and see if that helps. 

 

I would go with 0w-40 

[pokismoki]

all that power is cooking the cylinders and rings, you might need to upgrade the slugs to a more reasonable 8;1 CR, and better gapless rings... maybe add oil sprayers from a boosted LS motor

 

 

before you change the oil add 1 quart of Dextron trans fluid to the motor and take for a 5 mile drive. the detergents will loosen up the rings, do this every oil change. boosted motors need a 3000mile  OCI

 

I would of just went with a NO2 bottle and called it a day, maybe sell the whole kit off and go back to NA

Edited July 29, 2021 by pokismoki