WTF son of a mother f##king slut monkey
02-16-2009, 09:06 PM
#21
TECH Veteran
More than likely you just got the cylinder temperatures too high and broke a ringland. Sure sounds broken in the video. If you are absolutely positive that it wasn't lean at any time and didn't knock, then it was from driving it for so long in boost. Diesels can do that, gas engines not so much. I'd bet your underhood temps were very high also. You certainly don't want it to happen again. You either want to not drive that fast again or use a boost controller that doesn't allow boost to come in that early. A bigger turbo may help that some also which you already have.
02-17-2009, 06:14 AM
#22
you would have thought i would seen higher egt's than 1200 or my temp guage go above 170.
so if it is broken i have a few questions. first would i be able to see the broken piece throught spark plug hole with a borascope? would there be any metal flake in the oil? where is the cheapest place to get a set of wiseco pistons? and last how much can the rods honestly take?
so if it is broken i have a few questions. first would i be able to see the broken piece throught spark plug hole with a borascope? would there be any metal flake in the oil? where is the cheapest place to get a set of wiseco pistons? and last how much can the rods honestly take?
02-17-2009, 10:51 AM
#23
TECH Veteran
The LS2/LQ9 rods I'd trust to 800hp or so. Stock 5.3L or LQ4 rods I'd say 650-700 on the safe side. They will take more, but for how long is the question. Baker Engineering has done an LQ9 that put out 850 or so to the tires and has put some decent miles on it that way as well as many dyno and track passes. That is a stock LQ9 all through except the LS6 cam in it and Patriot valve springs.
02-17-2009, 10:57 AM
#24
your gonna have to take it apart to find out exactly what it is mike. i would think you would have more of a screaching noise with the tap if you broke a ring land. did you check your compression yet.? take the valve cover off to check and see if you broke a spring.
02-17-2009, 11:14 AM
#25
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dude, before you do anything check your Log manifold and make sure there isn't a crack. That sounds alot like an exhaust leak. Its probably louder when its cold, after it warms up it wouldn't be as bad since the heat expands the metal closing up the gap some.
02-17-2009, 12:57 PM
#26
there is a exhaust leak too. my wastegate bolt came out. how i don't know but it did. ever since it came out and i've had the exhaust leak between WG and DP i've had way more power. i'm going to run a seperate exhaust for the WG. found a small 1.5" bike muffler i may use.
02-17-2009, 02:26 PM
#28
well i made a video of the noise. it comes and goes. when you first fire it up its not there then it comes in alittle and goes away. sometimes it just stay there and ticks. so is it just a bad lifter? the fast ticks are my big *** injectors idling the tap is what your listening for. its pretty loud.
Sounds like a spun rod bearing, and a really bad exhaust leak
02-17-2009, 05:41 PM
#30
ok here it is. http://videos.streetfire.net/video/t...4-8dafc79eb310
i unplug each coil pack one at a time. the noise never went away. it wasn't during the vid.
oh yeah that noise in the vid is my injectors. i guess i was holding the camera to close. they are the seimen 60's
i unplug each coil pack one at a time. the noise never went away. it wasn't during the vid.
oh yeah that noise in the vid is my injectors. i guess i was holding the camera to close. they are the seimen 60's
Last edited by 4.8T; 02-17-2009 at 05:50 PM.