Blown motor pics.
Not so, very reputable 6 speed members have offered me good low mileage parts at good prices. A good used crank is $1000. Nothing wrong with a crank with less than 40k on it. Once I get my situation figured out I will make some calls and start collecting parts.
My theory is that I ran lean in the cylinder the farthest down the injector row. I think this caused some pre ignition and destroyed my rod. You can see that the carbon build up on the blown cyl is washed clean from the heat. I advise upgrading your fuel pump if you do turbos.
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Joined: Sep 2014
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From: Sarnia
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Originally Posted by brnrdtns
My theory is that I ran lean in the cylinder the farthest down the injector row. I think this caused some pre ignition and destroyed my rod. You can see that the carbon build up on the blown cyl is washed clean from the heat. I advise upgrading your fuel pump if you do turbos.
My tune is for 1.2 bar but I was in cold weather with around 94 octane gas and it was sitting at 1.3 during the run, which was probably part of my problem.
Ok, I will consider my top end options once my bottom end is complete. I will keep this in mind. Thanks for the offer.
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Joined: Sep 2014
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From: Sarnia
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Originally Posted by brnrdtns
My tune is for 1.2 bar but I was in cold weather with around 94 octane gas and it was sitting at 1.3 during the run, which was probably part of my problem.
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Wow scary! I have my Sam K16 billets on my workbench table ready to get started. I have delayed because I'm spooked on removal of the turbo oil lines as I tried last year and the line didn't budge without spinning as a whole.
I was going to heat them with a torch and attempt again soon but seeing this scares me!!
I was going to heat them with a torch and attempt again soon but seeing this scares me!!
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Joined: Jan 2016
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Got it apart. Crank journal looks to have taken a beating smacking against the broken rod pieces. Not sure if I should repair or replace. The oil pump is not cracked. The connecting shaft between the IMS and the pump took a beating. The oil pump might have sucked up some aluminum shavings and it feels lumpy when I spin it, not smooth and free spinning. Not sure if this is normal. I wonder if it can be rebuilt.
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Joined: Apr 2012
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From: Atlanta
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Looking at that cylinder you have had an issue for awhile.
18g turbos hit hard down low with torque.
60pound injectors on 18gs probably had a high duty cycle.
A fuel pump would not just lean out one cylinder out of 6. This is the reason i say to people and others have told me dont go above 80% duty cycle. Once a fuel pump goes it goes even im still on a stock fuel pump but with 80pound injectors.
I would not rebuild this engine yourself alot could go wrong as another forum member tried this and blew it up twice here in atlanta. I would get SRM to get your motor done. Just an idea for ya.
18g turbos hit hard down low with torque.
60pound injectors on 18gs probably had a high duty cycle.
A fuel pump would not just lean out one cylinder out of 6. This is the reason i say to people and others have told me dont go above 80% duty cycle. Once a fuel pump goes it goes even im still on a stock fuel pump but with 80pound injectors.
I would not rebuild this engine yourself alot could go wrong as another forum member tried this and blew it up twice here in atlanta. I would get SRM to get your motor done. Just an idea for ya.
Last edited by 996tt550hp; Mar 22, 2016 at 08:46 PM.
Looking at that cylinder you have had an issue for awhile.
18g turbos hit hard down low with torque.
60pound injectors on 18gs probably had a high duty cycle.
A fuel pump would not just lean out one cylinder out of 6. This is the reason i say to people and others have told me dont go above 80% duty cycle. Once a fuel pump goes it goes even im still on a stock fuel pump but with 80pound injectors.
I would not rebuild this engine yourself alot could go wrong as another forum member tried this and blew it up twice here in atlanta. I would get SRM to get your motor done. Just an idea for ya.
18g turbos hit hard down low with torque.
60pound injectors on 18gs probably had a high duty cycle.
A fuel pump would not just lean out one cylinder out of 6. This is the reason i say to people and others have told me dont go above 80% duty cycle. Once a fuel pump goes it goes even im still on a stock fuel pump but with 80pound injectors.
I would not rebuild this engine yourself alot could go wrong as another forum member tried this and blew it up twice here in atlanta. I would get SRM to get your motor done. Just an idea for ya.
It costs $1500 new and is a reliable design.
I still vote for a more thorough look at the HG/head/studs...that cylinder looks just like a coolant drinker...and based on the severity of damage I further think hydro lock...
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Joined: Apr 2012
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You know that could be an idea as mentioned above. Im wondering if you had the head lift from to much boost or pressure? It does look like it was washed down its shinny clean. Have you ever ran higher then 1.3bar?
Does anyone else think he lifted the head and coolant locked the motor?
Does anyone else think he lifted the head and coolant locked the motor?