TuCKiNaLL4s

yeah for the last few months id say about 3 maybe 4 ive been feeling my car taking long time to wind up and ive decided i wanna go boost on my motor so i wanted to get to the bottom of why my car isnt running right....so after changing alot of stuff thinking the problem was this and that ( i changed the fuel pump ( upgraded to a gsr pump), i changed cap and rotor and when i put the new cap and rotor in my ignitor went so i had to get that changed also, i also changed my spark plugs, my spark plug wires, my fuel filter, man u name it i have changed it thinking it would fix my car so finally i decide to do a compression test on my car today
i have a JDM b16a with a JDM DC header, AEM intake, APEX N1 catback ( not like it matters ) but i got these #'s when i did my compression check.....going from the cam gears to the distributor cylinder #1 gave me 190, then #2 gave me 195, then #3 gave me 240 along with the 4th one it also gave me a 240......i dint believe it so i did it again and again.....i did it like 4 times probably and eneded up with the same #'s everytime....

190,195,240,240

i dont know what the **** is going on im planning to do a leakdown test tomorrow to check for bent valves but i need help any suggestions would be greatly appreciated....cuz those #'s are INSANE

Stewie

probably just a worn engine. Do you know how many miles are on it? It's not true that JDM motors have 35K on them so don't believe that crap.

Does the motor burn oil? It could be just burnt valves. You valves aren't bent though because if they were you'd have no compression.

Go for the leakdown test and see what happens.

TuCKiNaLL4s

well when i first got the motor it ran hard as hell i even posted my dyno chart my motor came pretty damn clean when i got it and when i dynoed it with only an aemintake, JDM DC header, and an apexi N1 catback i dynoed 159 to the wheels....which is pretty good but lately i just feel the car running really shitty...........and people i used to walk like nothing now keep p to me


but yeah thanks Mac8008 its going in for the leakdown test tomorrowhopefully its just abent valve...i dont think its my piston rings cuz my compression is kinda high if one of em were gone i would have way lower compression.....