hi guys so I bought a b20z2 off a buddy because he went ls with turbo and it pulled nice and solid in his integra but when I put it in my 99 si chassis it has like as much power as a y8 no joke i checked injectors with a working set replaced fuel pump new plugs wires distributor valve lash is spec timing is perfect compression is 210 in all 4 cylinders gove or take 1 or 2 psi im just stumped only difference is im running b16 trans instead of his gsr im running his p75 ecu as well any input would b awesome guys thanks

 

Check to see if the ECU has any codes stored!

Double check the mechanical and ignition timing!

 

Only ecu code is 02 sensor and i ordered one but I've never had a 02 sensor cause that big of a power loss ever and timing is spot on still i just rechecked it