stock gsr bottom end, piston rings are probally gone, there is oil in all 4 cylinders, and it wont hold an idle unless i hole the throttle so its over 1000rpm. once im off the throttle...it dies

 

setup?? tuned??

id like to know why you fried it please......

 

sucks man how did it happen?

 

my setup is gsr motor, built head (dual springs, crower retainers, oversize valves, itr cams, p&P) love fab manifold, t3/t4 .63t .57a/r, edelbrock victor x im, trust intercooler, tial wastegate, tuned on a chipped p28 and crome, it was on 8 lbs and i had just hairsprayed all the intercooler piping, because we have been trying to turn it up to 10lbs, but it kept blowing the intercooler piping. i go out to where everyone meets in ks, and it was fine, i go to take my friends g/f for a ride, because she had never ridden in my car, and as i get to the highway i notice it is starting to cut out around 4500 to 5000rpm, i think its the weather, cause my car has been getting progessivly richer as summer comes, it was on a winter tune, so i get on the highway, and hit it in 2nd gear, and there is a screeching sound. im like, ok, the BOV is too lose, nothing too bad, but it was pulling like it didnt want to go, kinda sluggish like its pig rich. i do another 3rd gear pull to make sure the i/c pipes hold, and it does the same thing. i tell them that my car is running like ****, and as i get off the highway, my battery light comes on, and my car dies in the middle of the road. i finally get it started, and i pull in to a parking lot. it wont idle by itself, its acting as if its flooded. we let it sit for a couple hours, go back, and it starts fine, but is smoking like crazy(Blue smoke and white smoke). the crankcase keeps blowing out the dipstock, so we are like wow, thats a lot of blowby. we take out the spark plugs and notice that there is oil in all 4 cylinders. we drive it home, figuring that its trashed anyways, and we think its the pistons. i was thinking now, that it could also be a headgasket insted, because it would be kinda weird for all 4 rings to go at the exact same time...... imput please..... i need my car up and running lol

 

do a compression test, also was it cuting out like ingiton or like fuel?

 

it felt like it was putting in too much fuel, cause it was sluggish when it would do it, not like a normal it just missed. could it be the head gasket?

 

compression test will tell you somethings, if there is large cylinder psi differences you most likley blew the ringlands. check the coolant for milky-ish oil and coolant mixture for signs that the headgasket gave out. If you are still inconclusive have a leak donw test done, IMO it is the best test to do before you tear apart a motor, but from what i red it seems like you blew a piston, or less than likely spun out a rod bearing.

 

 

people always say you'll be good with a good tune, but this is a good example of a guy tuned on crome and still blowing his motor. Did you tune it yourself?

 

nope, tuned by a very good and reputable shop on the dyno, i gaurentee it was not the tune that did this...... as for the blown piston / spun bearing, there is no noise coming from the motor, and there is oil in all 4 cylinders, so its not just 1 piston...

 

just checked it in the day....coolant = black = blown headgasket