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Old 08-21-2018, 01:10 PM
Bowtieracing Bowtieracing is offline
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Exclamation Air bubbles in ATS/Petersen LS7 dry sump tank.

Guys please advice.

Why I am having a lot of air bubbles in oil in my ats/peterson dry dump tank after 10 minute drive. Engine temps are okay around 190 and suddenly oil temp begun rising close to 200. Then I can see oil pressude dropping. When I look in the tank after shuting the engine, there is a lot of air bubbles in the oil.

My tank is from botton to top of the fill neck 18” height and 6” diameter. I have ats / peterson breather can. All lines and fittings are earls size 12. Adapeter on the
Stock oil pan is GM.

Tank is on right front corner tucked front of the wheel. Botton of the tank is higher than oilpan.

I have there now about 9 quarts of correct oil. When oil has bubbles and I have shout the engine, oil level is about 3/4 of the tank. After it has cooled down and bubbles are gone, oil level is about 8” from the bottom of the tank.

what is wrong here?


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63 Z06

Last edited by Bowtieracing; 08-21-2018 at 01:27 PM.
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