displacement and power

[flacopower]

why is it that the f22a1 has 2.2L of displacement but only produces 125 hp? is it due to the fact that it is only a SOHC???

[accordaffair]

dont forget compression ratio

[trendyexr]

Why is it that a 1990 cavalier has a 3.1 litre 135hp v6?

[too.slow.CB7]

who cares..... thats what the H series was invented for!!!!.... -justin-

[deevergote]

There are many things involved with an engine's output other than displacement. Larger displacement often adds more torque than horsepower, it seems (I could probably learn why... in fact I should, but I haven't yet!)

The amount of flow the engine allows, through the intake manifold, head, exhaust manifold/header, and exhaust system... The amount of fuel flowed, the lift and duration of the cam(s) (dual cams can offer greater tuning capabilities, even from the factory). Displacement does play a role, but there's is much more to it than that!

[blazen_accord]

an 92+ ford taurus 3.8L V6 only make 140HP while the tq is 225, I use to own one..
like deev say it in the engine design, and an older 3.8l v6 mustang make 220+hp which is almost the same engine except for a few internal componet different, piston compression, inatek exhaust u guess the rest but also the ecu is tune down by the factory to it make less power to meet emmision and low insurance price. with domestic or car a few engine part and reflash ecu can make 30-40hp for n/a car.. with import it can be done but not as much, since honda already sqeezing most hp out of the car. but the accord 140hp is good power range for a economy car, since new 2004+ 2.0L-2.4L economy car make only 140-160hp also.

[deevergote]

Yeah, very true. Honda engines are quite efficient, so they come from the factory with a pretty good flowing design. That's why you can make 20hp with headers on a domestic V8, but adding even a good header on a Honda motor will add less than half of that.

[flacopower]

so what kind of engine mods can i do to the f22a1 to take advantage of the 2.2L displacement?

[jhondayaaj]

remember, power comes from head work, cams and the right valve train... compression comes from your bottom end. more power means bigger ports and a higher lift and longer duration camshaft.

[deevergote]

so what kind of engine mods can i do to the f22a1 to take advantage of the 2.2L displacement?

Aside from the normal bolt-on mods (I/H/E and pulleys) you can either get another intake manifold or convert to the A6 mani (or the H23 mani, and get it polished and portmatched). Getting a better cam, or a decent regrind like a Delta cam (I have one sitting in my passenger seat right now, waiting for my frined to come get it!) From there, you can get a chipped P06 ECU like Accord R33 is running, and have that tuned. An adjustible cam gear for more tuning would be good as well. Take the whole car to a dyno for about 4 hours and pull about 10 more hp from it... you MIGHT be looking at 150hp or so. Possibly more, but NEVER trust the claims of aftermarket companies!

[dwf137]

why is it that the f22a1 has 2.2L of displacement but only produces 125 hp? is it due to the fact that it is only a SOHC???

wow... that's a very broad question there. There's way too many things involved in how much horsepower an engine puts out, displacement gives easy torque, tuning gives high horsepower. All of the Flow characteristics, Compression, Temperature, Air/Fuel ratio, Octane Rating, ect.... there's just way too many things go get into all of them, search around the performance tech area to find out more info.

domestics suck. Not because of typical reasons, but most of the engineering in domestics BLOWS. They don't seem to want to make thier engines effecient, they just want to make them big to overcome all of the obstacles that the japanese company's engineers have been overcoming.

[flacopower]

Aside from the normal bolt-on mods (I/H/E and pulleys) you can either get another intake manifold or convert to the A6 mani (or the H23 mani, and get it polished and portmatched). Getting a better cam, or a decent regrind like a Delta cam (I have one sitting in my passenger seat right now, waiting for my frined to come get it!) From there, you can get a chipped P06 ECU like Accord R33 is running, and have that tuned. An adjustible cam gear for more tuning would be good as well. Take the whole car to a dyno for about 4 hours and pull about 10 more hp from it... you MIGHT be looking at 150hp or so. Possibly more, but NEVER trust the claims of aftermarket companies!

How much would the a6 mani help? how much money would your suggestions cost? is it worth it to put money into a f22a1 or should i just save the money for something else?