Car Forum World

What are some cost efficient ways to enhance the acceleration of a four cylinder engine?
I have an 05' dodge stratus. I want a bit more increase with it when I speed up. Anybody know?

you may be able to put a good K&N air filter in it,and run bosch spark plugs in it,and improve on the exhaust some,this will assist it lots,those run pretty good any way considering what they're,but those things will assist it some,good luck on it.

been a certified mechanic for 37 yrs.

Theres hp boosting oil and gas additives you could attempt. as well, get the "gunk" cleaning at your local oil changer valvoline, etc., keeps your car at max HP.

There generally a racing chip too,

shouldnt of got a four cylinder then.

ram air kit, 91% rubbing alchohol, everclear. attempt not to get carried away with the everclear.

add four more cylinders, haha.
Its not cheap, but there are lots of aftermarket parts you may be able to purchase. Cold air intake, high perf. ignitions, etc.
Go to a neon forum online and ask them how they pump up theres. Just press on the gas pedal hard, it'll get you there fast enough. goodluck

Add a nitrosoxide system.

Yup, all of the above, plus a high performance computer chip for the engines CPU.

The most bang for the buck, is nitrous oxide. It depends on how much you want to use up. Speed costs money, how fast do you want to go.

Cars are pretty simple, fuel combinations with air, ignites in the cylinder, then goes out the exhaust. So air filter, carby, ignition, exhaust. Sports air filter, bigger carby if possible, better high tension leads, distributor and spark plugs twinspark , then a bigger exhaust to let the whole system breathe a little easier, if you did all this you could get around 70kw, but by doing any of these will get power. I recommend just a new air filter and sports exhaust, you'll be surprised.

Like someone else said a K&N is about the best thing you may be able to do. Otherwise you will use up thousands of dollars to get hp when you could've bought a muscle car. Four cylinder cars were not built for power just economy.