What are some simple ways to boost horsepower in a honda civic?
103849
new muffler and air filter. that should costs bellow 100$ each and add 20-30 horsepower. You could also get a tune up and purchase sythetic oil which makes the engine more efficient thus increases horsepower. Anything else will cost you thousands of dollars.
156842
A tune up to start.Plugs,spark plug wires,7mm will do fine.I reccomend bosch platinum plugs or split fire.For a budget,as I am on also,a new air filter will do,I like K&N.A good low restrictive muffler and a 3 inch exhaust will be suffice.You may want to check into a chip if your vehicle has a computer.Stay away from nitrous,your bottom end will not hold.Run a good 89 octane.This will not only improve your power but will also help your fuel mileage.If you want to get wild tear out all the interior and gut the thing to lighten it.You may want to also look into aftermarket undersized pulleys.Your looking at around a grand still at that.You may want to consider a trade for a mid eighties mustang with the 302.You could build a beast with that.Gluck man.Power up....
90342
forced induction will give you the best results.  either through a turbo or through a supercharger.  but get ready to spend the most $ also.
232819
You can't go wrong with a high flow exhaust and a high flow air filter, it helps the engine breathe a lot better and should also increase economy.  It might be a bit louder though...
779935
Use Good Engine oil for the Best Speed for your PC. HA HA HA dont mind.
127524
It seems highly unlikely that your Honda has that kind of off the line accelleration, I know my 88 Civic, great as she is on the highway, takes 14 seconds to go from 0 to 60 on a good day and mine has no catalytic converter.
405779
buy a manual boost controller and boost gauge used on ebay, and crank that baby up, not too high tho or it will hurt the motor.  im not sure exactly what type of turbos are on a stock 3000gt, but i had my stock tsi turbo up to about 17 psi or so.
688187
most likely the civic, but i could be wrong, go to http://google.com/ and type in 2004 Honda Civic V4 Specifications, and 1995 Ford Mustand V6 Specifications, and see the HP and everything, and go from there.
534841
Stick a trumpet up your A55!\n\nLOL!
8174
1 kilowatt = 1.34102209 horsepower\n\nIf you want to convert anything, go to http://www.google.com/. Type in, for example, "convert 20 kilowatts to horsepower" and Google will do the conversion for you.
127718
Are you talking cubic inches or horse power or both\n\nIE you can get 408 hp from a 400ci with the right cam heads intake and carb.\n\nYou can also bore out an engine block to increase the cubic inches, IE bigger pistons and rings.\n\nAnd as the previous poster wrote you can make it a stroker motor
408985
GM has brought out 2 different kits to up the horsepower on the Cobalts. Check with your local dealership (they have just now became available).  1 of them includes a SuperCharger.\nHypertech has a great program for the Cobalt but you have to remove the factory GM program & the Hypertech computer installs its' own program.\nThe GM kit is probably the safest bet, though. Since it has been designed specifically for the Cobalt.\nGood choice for a vehicle. I have always been a fan of the Cavalier & the Cobalt is nothing but a body style change. It is built off of the Cavalier platform & they did pretty much prefect it.\nExcellent choice for a vehicle to play around with.
404915
Drive less. Get a tune up, in general use less gas.
413204
well...\n\nlook for performance:\nheaders\nexhaust pipes\nmufflers\nintake manifold\nair filter\ndrivetrain pulleys\nfuel injectors\nthrottle body\nfuel pump\n\nsupercharging the motor always helps. =]\njuss make sure u upgrade ur brakes too, though. lol.
337193
Scrap both ideas and get a cam, port the heads, and carburate it.  You'll see more results than fuel injection for a very reasonable price, a pre GenIII small block like yours is cheap to build up!
977375
If you are not going to change the computer you will want to stay close to the motor that the computer is programmed for. A full roller 305 with a decent set of heads will get you plenty of power if you leave the injection system on. The heads are the main place to gain hp without increasing cubes. If you are going to a carb then drop in a 350. Lots more torque than a 305 but a little harder on the gas. Keep the cam pretty mild for the computer or you will get lots of check engine lights because the motor will get out of the parameter of the computer and sensors.
807203
Short answer: Install a large turbo.\n\nIt depends on what type of engine you have.  If you're running a KA18DE, good luck.  You'll have to tune that engine about as heavily as possible to take it up to that much power.  However, if you have an SR20 engine, you're in a much better situation, as those can withstand much more power.  \n\nIf you have a KA18DE engine, I would suggest saving your money for a SR20DET engine, and having the SR20DET rebuilt.   That will cost more than your current budget, but will be worth it. Then, install a large turbo on the SR20DET.  I would guess that all that work may cost as much as $8k-10k, depending on how the SR20 market is right now.  \nYour other option with the KA is to install a turbo, and hope for the best. I don't know if you'll be able to pull 300HP though, especially with a tired old engine.\n\nNOTE: If your engine is naturally aspirated and hasn't been recently rebuilt, I wouldn't reccomend installing a turbo, as you're likely to blow it.\n\n**for reference** "S13" refers to an older model  (86-92?) Nissan 240SX\n\nDisclaimer: I drive a Mazda RX7 (FC3s), and have not personally  done any work of this nature on an S13.\n\nFeel free to send me a private message (I think you can on these boards) and update me/ask for more info  on the situation.