MODS DONE! Options

[Stipt]

OMG today I must say was the day that I put in my nice neat lil Greddy Exhaust and Injen Intake. I can tell a big difference in power!!! I love the sound of the Greddy SP. Man.....I think I will start saving up for a 3sgte engine next! WISH ME LUCK ON THAT ONE! LoL Just wanted to let you guys know that I enjoy my "new" celica so much and with the exhaust and intake, I love it even more.

[coustoe]

Modern Combustion engines run on a four stroke cycle. On the power phase, combustion occurs forcing the piston downwards. The downward motion turns the cranksaft that powers the car forward. Engines typically have at least 4 pistons attched to the crankshaft, gaurenteeing continues power to the car. when set of pistons are being pushed down another set will be in a different cycle.

After combustion has occured there is a exhaust phase. where spent gases are expelled from the engine. Your engine power phase helps the other cylinders prepares for combustion, which means moving the piston up to expell gases during the exhaust phase. If there is resistance from forcing the pistons up to expel exhaust gases, then you will rob power from your pistons on the power phase. This of course will rob potentional HP from your engine.

A exhaust system or free flow muffler will help incrementally with our st and gt cars though i doubt you get much more then 3-4 hp gain. The real difference will come if you ad a turbo system or a 3sgte. You should get gains of what 20HP? Most people really only put on a new muffler for looks and the sound anyways