rod barrings
Aug 4, 2010, 04:25 PM
#16
Evolving Member
Thread Starter
135 on a highway wasnt smart, but I wont lecture you on it. You are a big boy.
The running 135 on a untuned engine with smaller injectors is more than likely what caused your current engine failure. Detonation as stated above more specifically. You basically bashed the hell out of the rod bearing.
The running 135 on a untuned engine with smaller injectors is more than likely what caused your current engine failure. Detonation as stated above more specifically. You basically bashed the hell out of the rod bearing.
Aug 4, 2010, 05:56 PM
#19
My comments before were a little rude, but not totally uncalled for. You really expected to tell your story of 135, built motor, not tuned and all of that and not expect some ridicule?
Take pictures of the top of the pistons as stated before and see if there are signs of detonation.
Did you have a wideband on the car at all? Any idea as to what the AFR's were? If you changed the injectors and didn't change the latency or scaling values for your injectors in your ROM then that is the problem, especially if you downsized the injectors.
Think about it this way, the only way the ECU knows how much fuel to spray is in the fuel trim tables in your ROM (set by the previous tuner), so if you were tuned for 1000cc injectors and they were running at 80% IDC then you are spraying 800ccs of fuel (roughly speaking) so if you downsize those to 800cc and still keep the timing and fuel tables all the same, you are in for disaster because those tables were tuned to a specific AFR sprayed by your previous injectors. When you downsized your mix leaned out, cylinder temps skyrocketed and kaboom.
I am sorry this happened to you, but you really have to do your homework before beating the hell out of a car.
Take pictures of the top of the pistons as stated before and see if there are signs of detonation.
Did you have a wideband on the car at all? Any idea as to what the AFR's were? If you changed the injectors and didn't change the latency or scaling values for your injectors in your ROM then that is the problem, especially if you downsized the injectors.
Think about it this way, the only way the ECU knows how much fuel to spray is in the fuel trim tables in your ROM (set by the previous tuner), so if you were tuned for 1000cc injectors and they were running at 80% IDC then you are spraying 800ccs of fuel (roughly speaking) so if you downsize those to 800cc and still keep the timing and fuel tables all the same, you are in for disaster because those tables were tuned to a specific AFR sprayed by your previous injectors. When you downsized your mix leaned out, cylinder temps skyrocketed and kaboom.
I am sorry this happened to you, but you really have to do your homework before beating the hell out of a car.
Aug 4, 2010, 06:21 PM
#20
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Join Date: Apr 2008
Location: whitestone, ny
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first off. learn to spell, its bearings, not BARRING
second if you were in fact under the influence. i hope you never get behind the wheel ever again. people like you give everyone else a bad name.
and learn how to mod a car properly. leaning the a/f ratio out by depriving the engine of fuel is retarded
Aug 4, 2010, 07:18 PM
#23
Im no genius but.......dude you seem like someone who bought something to say you did something and then when you ****ed it up, you dont understand why. Nothing adds up man.
FAILED:
Injectors
Tune
Driving
Bought a motor but dont know whats inside
Added cams without a tune
Cmon man. Common sense. Sorry to bash but that just wasnt smart
FAILED:
Injectors
Tune
Driving
Bought a motor but dont know whats inside
Added cams without a tune
Cmon man. Common sense. Sorry to bash but that just wasnt smart
