Hey guys I posted about this in my progress thread, but didn't get any responses (I know my thread isn't as cool as others here) so I wanted to create a new one because I would appreciate some advice. I posted on the other forum too but wasn't that descriptive so to avoid follow up questions I will be as descriptive as possible.
The build: professionally built .40 over 306 forged internals brand new tfs 170s, stage 1 cam, Chinese cobra. Builder said it should make 10:1 compression
Initial start: Filled with 10 30 conventional and comp cams additive. Car started but would not stay running do to a chip previous owner installed. Had to keep revs over 2k to stay running. There was no smoke during this time, only unburned fuel.
Tuner: Car went to tuner on a flatbed They cleared the chip and set everything back to base until i get some miles on it. Told me to come back at 500 miles and they will dial it in.
First drive: Hard pulls to 4k and downshifting to slow down. No smoke, 10-15 miles. Pulled like a freight train.
15-50 miles: Smokes (oil) a little on cold start. Once warmed up smokes on decel and when returning to idle. Still pulls like a freight train. Changed oil with 10 30 conventional no additive.
50-250 miles: Same symptoms as before, but more intermittent. Consumes a quart of oil approximately every 75 miles.
The builder said he thinks the rings just have not seated and to come back after 500 miles. I just have really not had a great experience with this guy so I don't know what to think. Others have said it could be bad valve seals or faulty pcv system. I did not retorque lower intake bolts after first start up and I am not sure if tuner did too. I am going to check this later today. I did notice a little oil pooled behind the lower about a quarter sized. Maybe it is just a simple fix.
If you guys read all of that and reply, you rock!
The build: professionally built .40 over 306 forged internals brand new tfs 170s, stage 1 cam, Chinese cobra. Builder said it should make 10:1 compression
Initial start: Filled with 10 30 conventional and comp cams additive. Car started but would not stay running do to a chip previous owner installed. Had to keep revs over 2k to stay running. There was no smoke during this time, only unburned fuel.
Tuner: Car went to tuner on a flatbed They cleared the chip and set everything back to base until i get some miles on it. Told me to come back at 500 miles and they will dial it in.
First drive: Hard pulls to 4k and downshifting to slow down. No smoke, 10-15 miles. Pulled like a freight train.
15-50 miles: Smokes (oil) a little on cold start. Once warmed up smokes on decel and when returning to idle. Still pulls like a freight train. Changed oil with 10 30 conventional no additive.
50-250 miles: Same symptoms as before, but more intermittent. Consumes a quart of oil approximately every 75 miles.
The builder said he thinks the rings just have not seated and to come back after 500 miles. I just have really not had a great experience with this guy so I don't know what to think. Others have said it could be bad valve seals or faulty pcv system. I did not retorque lower intake bolts after first start up and I am not sure if tuner did too. I am going to check this later today. I did notice a little oil pooled behind the lower about a quarter sized. Maybe it is just a simple fix.
If you guys read all of that and reply, you rock!
Last edited: