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Dyno WOT runs +oil smoke after wot

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Old 06-18-2006, 01:19 AM
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Default Dyno WOT runs +oil smoke after wot

Took the car to the dyno today and ran it several times. Car runs great and power seems to be where it should be, but when you let off after WOT we get alot of oil smoke out the back. We thought at first it could be the crankcase pressure, so we rigged a breather valve and that didnt do much. This is a new aluminum 402. It has 3 track runs on it so i hope its nothing serious.

Any ideas?
Old 06-18-2006, 01:27 AM
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Originally Posted by White2000TA
Took the car to the dyno today and ran it several times. Car runs great and power seems to be where it should be, but when you let off after WOT we get alot of oil smoke out the back. We thought at first it could be the crankcase pressure, so we rigged a breather valve and that didnt do much. This is a new aluminum 402. It has 3 track runs on it so i hope its nothing serious.

Any ideas?
typical cammed lsx they all do it lol ..
Old 06-18-2006, 05:16 AM
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Could be valve seals. Right after the dyno pull when you let off the pedal, you have a high vacuum in the motor so it "could be" sucking oil past your valve seals.



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