Effects of nitrous oxide systems on motor oil?

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Amongst all the information on motor oil, and all the information on nitrous oxide injection out there, I've never really read anything conclusive about how the two get along together. I have read in some forums that nitrous will cause motor oil to become more acidic, whether that is true or not I don't know.

Are there any special considerations in your choice of oil or frequency of oil changes when using nitrous? And why? Has anyone run oil analysis on a nitrous injected motor?

Very curious about this, any thoughts welcome.
 
Given that it's a nitrogen containing oxidising agent, my (purely guesswork) thoughts would be increased oxidation and nitration and thickening.
 
Asked a builder about this. he said that if anything the nitrous will create a more efficient burn and should not affect the oil at all.
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My experience with nitrous is that it builds extreme engine heat compared to running naturally aspirated. On a 355 SBC marine engine I saw oil temps climb from 200* to 280* in 13 secs of spraying a 100 wet shot. Those are too hot of temps for an engine and I immediately added a large oil cooler to keeps the temps in check.

I don't see it hurting the oil as long as oil coolers are used to keep the temps in check.
 
that's in a marine application though. 280* oil temps should be just fine for a synthetic. I'd have to wager OIL temps wouldn't raise that fast on a street driven engine. Although I won't know more until I run some juice this fall, and monitor my Oil temps/.
 
Would N2O be harsher on the oil in the bearings compared to N/A or FI?

Would 280* be ok for a 30wt synthetic? Doesn't seem like it to me.
 
280° is nothing for a synthetic in my experience. I have run Mobil 1 0w-20 at that temp and higher for 15+ minute stretches. However, a lot of guessing what could happen because of that is engine dependent. The huge 3" mains of a Ford 351 Windsor probably place different demands on the oil than a sub 2" main on a motorcycle. But for a short blast, I think any good synthetic will do just fine.

Same goes for N/A vs FI vs N2O. How much of each, and on what engine will probably be make just as much difference as which one you chose.

I was under the apparently mistaken impression that N2O adds little heat to engine. I know it pulls a lot of heat out of the intake charge, and I guess I assumed that it would have the same cooling effect on other parts of the engine. 80° from a 13 second blast is a huge jump! I am sure that there is someone here who can do the math and figure out how much energy that is. Think about how long it would take to heat up 6 quarts of oil by 80° on a stove. Wow.
 
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