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Old 01-11-2021, 08:07 PM   #1
mgrotel
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Member#: 211590
Join Date: May 2009
Default IAG AOS - Street or Comp

I have read several perspectives on this topic, and cannot for the life of me decide which route to go. Setup is sub 500whp on mustang dyno, 2006 wrx. Street driven fun car, not my daily, mostly a cruiser, but get on it more than when I am driving the daily. No tracking, just a get out of the house and have some fun type of car. Flex fuel kit, will be on e85 90% of the time.

Street - pulls vapors out of crankcase better so oil doesn't get diluted as quickly, but still going to get some nasty stuff into the turbo inlet.

Comp - keeps turbo inlet 100% clean, but oil will get diluted quicker based on running e85 most of the time and there is no vacuum pulling those vapors out.

For me, it comes down to which one I consider the lesser of the two evils. Do I put up with 1500 mile oil changes and have a super clean intake charge, or do I have the oil last longer and put up with knowing some crap is still going into the intake.

Would love to hear some thoughts on this, thanks.
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