slow40sx
05-28-2013, 10:33 AM
So I just had my bottom end on my SR rebuilt a few months ago by a really good well known shop in my area, wiseco 9:1 pistons .020 over, ACL bearings, hot tanked, decked and all that, put it in the car about a month ago, car has run great since I first started it, haven't been giving it WOT obviously since its a fresh bottom end, but I have been giving it half throttle to 3/4 throttle into boost up to 6 grand and letting it engine break back down again here and there to help bed the rings, put about 70 miles on it so far.
Now on to the issue, drove it one day and at random it started spitting and bogging, wouldn't respond when I gave it gas then it would for 200 rpm then bog down again almost like a rev limiter but worse, and then it cleared up, drove the car for another 30 minutes no problems. A couple days later I drove it around for an hour 0 issues, then a couple days after that it happened again for a few minutes then ran fine again, went to drive it yesterday and I took it down the street ran fine, made a left, great through 1st, into Second gave it gas and it coughed and started bucking and spitting and sputtering, idled fine but under load just sounded like a machine gun Bap Bap Bap Bap, fucking terrible.
I pulled my plugs all are black due to the car running rich but plug number 2 was completely soaked in oil from the top of the threads down, no oil in the plug tube only on the cylinder side, I cleaned all the plugs put them back in took it down the street ran great 1st gear good into boost into second bog spit sputter garbage all over again, pulled the plugs cylinder 2 plug had a tiny tiny bit of oil on the tip, stuck an extension into the cylinder and pulled it back out, had a tiny bit of oil on the tip of it.
My question is wtf? And how the fuck? Could this be bad valve seals or Are my rings fucked? **car sounds great, pulls properly, feels solid when sputtering bs isn't going on**
Now on to the issue, drove it one day and at random it started spitting and bogging, wouldn't respond when I gave it gas then it would for 200 rpm then bog down again almost like a rev limiter but worse, and then it cleared up, drove the car for another 30 minutes no problems. A couple days later I drove it around for an hour 0 issues, then a couple days after that it happened again for a few minutes then ran fine again, went to drive it yesterday and I took it down the street ran fine, made a left, great through 1st, into Second gave it gas and it coughed and started bucking and spitting and sputtering, idled fine but under load just sounded like a machine gun Bap Bap Bap Bap, fucking terrible.
I pulled my plugs all are black due to the car running rich but plug number 2 was completely soaked in oil from the top of the threads down, no oil in the plug tube only on the cylinder side, I cleaned all the plugs put them back in took it down the street ran great 1st gear good into boost into second bog spit sputter garbage all over again, pulled the plugs cylinder 2 plug had a tiny tiny bit of oil on the tip, stuck an extension into the cylinder and pulled it back out, had a tiny bit of oil on the tip of it.
My question is wtf? And how the fuck? Could this be bad valve seals or Are my rings fucked? **car sounds great, pulls properly, feels solid when sputtering bs isn't going on**