I have seen dozens of stock dynos between 248 and 250. 21 gained by exhaust and headers (especially Taitec) is only 3 or 4 higher than average.
A delta of 2-3 hp between engines in used cars is unheard of. We don't know (at Ieast I don't know) what new NSX engines would all dyno at if compared.
Break in procedures were most commonly cited as a key reason for the differances in 'used' engines by the Honda engineers I have spoken with.
IMO, 271 for a car with these mods is very close.
I also believe NsxMas could have picked up 50hp with his mods as I have seen many baselines between 225 and 230.
If this were my car, I would locate a test pipe with an O2 bung and check his a/f the correct way. His 16:1 is not accurate reading after the cats, but it could be a sign of old O2 sensors, or it could be no sign at all.
If it were me, I would want to know.
But its not. :smile:
MB
A delta of 2-3 hp between engines in used cars is unheard of. We don't know (at Ieast I don't know) what new NSX engines would all dyno at if compared.
Break in procedures were most commonly cited as a key reason for the differances in 'used' engines by the Honda engineers I have spoken with.
IMO, 271 for a car with these mods is very close.
I also believe NsxMas could have picked up 50hp with his mods as I have seen many baselines between 225 and 230.
If this were my car, I would locate a test pipe with an O2 bung and check his a/f the correct way. His 16:1 is not accurate reading after the cats, but it could be a sign of old O2 sensors, or it could be no sign at all.
If it were me, I would want to know.
But its not. :smile:
MB