ecu's have a 130 mph governor. also the comp ration is usually around .2 points higher, it depends on the engine.Trancer04 said:Other than 10 more hp in the jspec version, Im guessing that they are basically the same, are there any difference say with the ECUs or anything else?
no, the difference in the USDM B18C1 and the JDM B18C1 is the ECU maps(more agressive because of fuel availiable) and the fact they have higher octane gas over there available at the pump and Less restrictive emissions. So these 170hp B16's and 180hp B18c's are just like USDM engines with the exception of compression ratio and other small features that protect the engines life and don't increase hp output.:sonic:Trancer04 said:Is it worth spending a couple extra hundred for the jdm version?