Tampa Racing - View Single Post - s13 sr20det breaking up. need some advice

Jul 13, 2011 | 06:08 PM

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RonZ32

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Joined: May 2010

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s13 sr20det breaking up. need some advice

Ok so my car has been acting up lately and me and my buddies cant seem to figure it out so ive turned to the internet for help.

My car breaking up in first and second gear under wot around 5k or after and when boost starts climb?
At first i thought boost leak but it seems to run fine 3rd, 4th and 5th wot
it almost feels like fuel cut because it bucks really hard

S13 sr20det black top
here a small list of what ive changed....
New plugs ngkbkr7 gapped to .030(haven't tired .028 yet), coils, z32 maf, igniter, fuel rail(oem), fuel pump(mk4 tt), fuel pressure regulator, injectors(740cc) and ecu(tuned for 740's) both coolant temp sensors and thermostat. Running only 10lbs of boost on a new gt2871r .83 trim.

compression from the front to the back of the motor is 150, 149, 149, 135 :/ maybe a ring problem?

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