I have a LS motor with 125,000 miles on it...I was just wondering if I could run a 55 shot, or even 75 shot N20 safely with this?

 

I have seen it done with 140,000 on an LS and a D16 with a 55 shot. Both these guys are insane about maintaining an engine. The LS has a very good bottom end, it should handle the extra power. Really, it all depends on the engine condition. A 55 shot shouldn't be a problem, most Honda's can handle that. I am personally a little apprehensive on a 75+ shot, cast pistons with this setup makes me worry a little. If it's set up correctly and you use the nitrous moderately, it shouldn't be a problem.

 

Personally, I'd stay w/ a 55 shot for safety reason.

 

Stay with 50 shot and you will be safe.

 

I think you'll blow your motor during your first shot.

Suggestion: give your engine a rebuild. Yes, Honda engines last for a very long time, but high performance deplete engine life pretty rapidly. Also, do some research on fuel settings, as running lean with N2O = problems.

Suggestion 2: don't use N2O (that includes the car).

 

if the 125K is all highway miles and you can verify this, then NOS should not be a problem

if itis 125K of city miles then I would not even think about it

 

nitrous is for people that can't afford to go fast, so I doubt there is money in the picture for an engine build.