... im learning. this is good. im still just a kid.

i really have to remember that everything i take off of my car has over 210,000 miles on it. so do you think i could be feeling just the difference of new parts? or it is just in my head?

 

Your car runs better with fresh plugs in there, correct?

 

i change my plugs because you guys told me to every 20,000 miles. i did it at 207k when i got the car, and i have a set in the glovebox waiting to go in tomorrow because i broke my pcv valve and let oil dump out of my valve cover and into my intake manifold for 80 miles. the car def. ran better the first time i changed the plugs.

 

I like to change my plugs every 10000 miles or so... there cheap might as well... keep the motor as fresh as possable...

 

how many times do i need to post about this!?
an engine runs worse with ANY amount of backpressure vs. none
the reason this myth got started is back PULSES help with exhaust scavenging, which is a pressure WAVE but not actually back pressure like a restrictive exhaust.

the reason too big of a tail pipe makes you lose low end is because the gases coming out of the engine expand too fast, and slow down, which forces the engine to pump the next set of gases in a compounding effect until the engine reaches a high enough rpm to make use of the extra pipe volume

got that? anyone who reads this thread from now on should have NO reason to think an engine needs exhaust backpressure in the form of smaller pipes etc. anyone who doesn't get it, email me, pm me, etc. and i can possibly explain it better

thank you