I threw a rod in my previous, and original engine, so I ended up having a shop rebuild it for me. They have done many other S2000's and have not heard any ill effects from them so I felt very comfortable.

The car started off eating a lot of oil. Probabbly about .5 quart every 100-200 miles. Since then I've put about 15,000 miles on it in a relativly short amount of time. I do mainly highway trips of 250 miles every weekend at the minimum. The oil consumption has gotten better but not by that much. It now consumes 3/4 quart every 500 miles. Even compared to other stories here on S2ki that number still seems very high to me.

In the rebuild they put in the 4 bolt oil jets and a spoon headgasket but those were the only things that were changed. I have tried the krank vents with no change what so ever.

In the beginning I went back and they gave it a once over. There were no leaks or anything and they said that oil consumption should improve.
So my main question is should I go back to the shop? They told me a 12 month warranty on it, parts/labor.

 

yea i would go back if i were you while its still under warranty.

 

I'm not a mech but that much does seem excessive. If it's not leaking it's being burned. At a minimum it would seem to have a negative effect on plugs.
Since you've put 15k on the OD since the rebuild, the rings should be fully worn in.
I have had cars (new) in the past that used a lot of oil, but that was many years ago and I think autos were built a little looser than they are today.
I would contact Honda and get their opinion. It may be important, or it could be just an aggrivation that you'll have to accept.

 

Did they use a honda shortblock or did they just replace the bearings and rings?

 

they replaced the bearings and rings.

 

Take it back...soon.

 

Mine eats oil, but nothing close to that, mine maybe takes about .5 quart every 8K