I saw some stats online that the motors between 91-92 in accord ex's changed and have 6 mor lbs of torque and 10 more hp, I was woundering what the difference in the two are to make the change in power. And if a 90 can have that done to it. Let me know. For my information too does anyone have a list of all the f22 lettering for the different accord motors and if the lettering after that , such as a4 just stands for what head or what?

 

neither one of those motors come turbocharged, so many little things you may not look at could cause the engine to have more torque and more hp. Compression ratio is higher in the 92 than the 90. Bore X Stroke is a little different, and so is the displacement