Finally...twin turbos for my LFX - Page 40 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

JantzenOKC · 10-06-2015, 02:20 PM

Quote:

Originally Posted by IneedAZ

Plan is to keep this car as my DD, and get a 2017 Zl1 50th anniversary edition as my weekend toy. Guess it will depend on the price tag. Hoping it wont exceed 60k, but who knows!!

Nice! I won't be going that big. I was planning on keeping this and getting a 2017 SS but who knows... maybe I'll get me a 2.0T next time.

JantzenOKC · 10-06-2015, 10:12 PM

Ok, I got the timing chains and heads off today. Things looked a lot better up there than I expected, the cylinder walls don't even look that scared up. The block is definitely ruined but I think the heads are fine. The engine seized because of a chunk of rod that was stuck between the crank weight and the block. Once I knocked that out the engine turned over fine, all 5 cylinders.

The piston that broke is still intact and has the top ring land all still there. Everything from the second ring down is gone including the wrist pin. The cylinder walls didn't really look that bad. There are chunks broke out at the bottom from rod breaking probably but everywhere there is ring contact looks pretty good considering.

Speculation...?

JantzenOKC · 10-06-2015, 10:14 PM

Other 5 cylinders.

JantzenOKC · 10-06-2015, 10:19 PM

Heads. The cylinder that went is the one missing a spark plug.

MagnumForceGB · 10-06-2015, 11:12 PM

Only thing I can think of is detonation, the piston opposite of the failure has white pits on it at the edges.

HP Turbine · 10-06-2015, 11:47 PM

My guess. Pre detonation. Smacking on the cylinder wall and breaking the skirt then just going from there to the wrist pin.

JantzenOKC · 10-08-2015, 10:46 AM

I'm not sure detonation was the cause of the catastrophic failure, even though there might be small signs of it. I was off yesterday so I'll try to get the rest of the pistons out today and take some more pics.

Got the car back together and pushed outside. I think I'm going to just take it home and put it in the garage for awhile... It's sad. Car looks cool like this though, like a Camaro ralley car!

JantzenOKC · 10-08-2015, 11:18 AM

This is the #2 piston/rod, the one directly across from the bad one. Not a lot of detonation here, it's a little cleaner at the edges but ZERO metal errosion. I see no errosion in the failed piston either. More to come...

MagnumForceGB · 10-08-2015, 02:18 PM

#6 has the pitting I was talking about, but could also be the camera angle.

Was #1 the one you had injector problems with?

JantzenOKC · 10-08-2015, 02:23 PM

All the other pistons look about the same as #2 except one. #6 cylinder had a lot more carbon/caked oil on the top of the piston than the others. I already knew that cylinder was getting oil in it somehow from the plugs. #6 plug was always darker than the others and had oil on the threads. Guess it was the rings. Half the pistons ring lands are clean and the other half are not.

Below are two pictures of the same piston just turned 180 degrees.

Third is an old pic I had of the spark plugs last time I changed them.

JantzenOKC · 10-08-2015, 02:27 PM

#6 piston top.

JantzenOKC · 10-08-2015, 02:30 PM

Quote:

Originally Posted by MagnumForceGB

#6 has the pitting I was talking about, but could also be the camera angle.

Was #1 the one you had injector problems with?

Yes #1 was the cylinder that had the injector failure. I wonder if it got hurt trying to compress all that fuel. There was quite the pool in there.

I've put 5,000 miles on the car since then.

MagnumForceGB · 10-08-2015, 02:44 PM

Quote:

Originally Posted by JantzenOKC

Yes #1 was the cylinder that had the injector failure. I wonder if it got hurt trying to compress all that fuel. There was quite the pool in there.

I've put 5,000 miles on the car since then.

Might have been just enough to shorten its lifespan to where extra boost popped it.

Better shot of #6, doesn't look as bad in that picture. I figure it would be worse with pump gas but these direct injection engines are awesome.

JantzenOKC · 10-09-2015, 01:06 PM

It's amazing how light this bare engine block is.

Might have to turn it into a man cave table.

10-06-2015, 10:12 PM	#548
JantzenOKC Drives: '13 2LT/RS Twin Turbo Join Date: Aug 2012 Location: Edmond, Oklahoma Posts: 3,073	Ok, I got the timing chains and heads off today. Things looked a lot better up there than I expected, the cylinder walls don't even look that scared up. The block is definitely ruined but I think the heads are fine. The engine seized because of a chunk of rod that was stuck between the crank weight and the block. Once I knocked that out the engine turned over fine, all 5 cylinders. The piston that broke is still intact and has the top ring land all still there. Everything from the second ring down is gone including the wrist pin. The cylinder walls didn't really look that bad. There are chunks broke out at the bottom from rod breaking probably but everywhere there is ring contact looks pretty good considering. Speculation...? Attached Images __________________ 3.6L Twin Turbo V6 Garrett GT28 turbos -- Jacfab forged connecting rods -- Diamond forged pistons(10.5:1) -- Alky Control Methonal Injection -- CircleD 2E triple disc torque converter -- BMR suspension 10.75 @ 131mph

10-06-2015, 10:14 PM	#549
JantzenOKC Drives: '13 2LT/RS Twin Turbo Join Date: Aug 2012 Location: Edmond, Oklahoma Posts: 3,073	Other 5 cylinders. Attached Images __________________ 3.6L Twin Turbo V6 Garrett GT28 turbos -- Jacfab forged connecting rods -- Diamond forged pistons(10.5:1) -- Alky Control Methonal Injection -- CircleD 2E triple disc torque converter -- BMR suspension 10.75 @ 131mph

10-06-2015, 10:19 PM	#550
JantzenOKC Drives: '13 2LT/RS Twin Turbo Join Date: Aug 2012 Location: Edmond, Oklahoma Posts: 3,073	Heads. The cylinder that went is the one missing a spark plug. Attached Images __________________ 3.6L Twin Turbo V6 Garrett GT28 turbos -- Jacfab forged connecting rods -- Diamond forged pistons(10.5:1) -- Alky Control Methonal Injection -- CircleD 2E triple disc torque converter -- BMR suspension 10.75 @ 131mph

10-06-2015, 11:12 PM	#551
MagnumForceGB Drives: Fastest 2010 Camaro V6 Join Date: Apr 2010 Location: Newcastle, OK Posts: 3,571 View My Garage	Only thing I can think of is detonation, the piston opposite of the failure has white pits on it at the edges. __________________ Camaro V6 = 11.268 @ 120.11

10-06-2015, 11:47 PM	#552
HP Turbine Boosted Drives: 2012 1LT RS... with snails Join Date: May 2012 Location: New Hampshire Posts: 1,455 View My Garage	My guess. Pre detonation. Smacking on the cylinder wall and breaking the skirt then just going from there to the wrist pin. __________________ IPS Twin Turbos, Corsa Exhaust, Ported Throttle Body. 461 rwhp 443 rwtq!! Cameron Hass.ani

10-08-2015, 10:46 AM	#553
JantzenOKC Drives: '13 2LT/RS Twin Turbo Join Date: Aug 2012 Location: Edmond, Oklahoma Posts: 3,073	I'm not sure detonation was the cause of the catastrophic failure, even though there might be small signs of it. I was off yesterday so I'll try to get the rest of the pistons out today and take some more pics. Got the car back together and pushed outside. I think I'm going to just take it home and put it in the garage for awhile... It's sad. Car looks cool like this though, like a Camaro ralley car! Attached Images __________________ 3.6L Twin Turbo V6 Garrett GT28 turbos -- Jacfab forged connecting rods -- Diamond forged pistons(10.5:1) -- Alky Control Methonal Injection -- CircleD 2E triple disc torque converter -- BMR suspension 10.75 @ 131mph

10-08-2015, 11:18 AM	#554
JantzenOKC Drives: '13 2LT/RS Twin Turbo Join Date: Aug 2012 Location: Edmond, Oklahoma Posts: 3,073	This is the #2 piston/rod, the one directly across from the bad one. Not a lot of detonation here, it's a little cleaner at the edges but ZERO metal errosion. I see no errosion in the failed piston either. More to come... Attached Images __________________ 3.6L Twin Turbo V6 Garrett GT28 turbos -- Jacfab forged connecting rods -- Diamond forged pistons(10.5:1) -- Alky Control Methonal Injection -- CircleD 2E triple disc torque converter -- BMR suspension 10.75 @ 131mph

10-08-2015, 02:18 PM	#555
MagnumForceGB Drives: Fastest 2010 Camaro V6 Join Date: Apr 2010 Location: Newcastle, OK Posts: 3,571 View My Garage	#6 has the pitting I was talking about, but could also be the camera angle. Was #1 the one you had injector problems with? __________________ Camaro V6 = 11.268 @ 120.11

10-08-2015, 02:23 PM	#556
JantzenOKC Drives: '13 2LT/RS Twin Turbo Join Date: Aug 2012 Location: Edmond, Oklahoma Posts: 3,073	All the other pistons look about the same as #2 except one. #6 cylinder had a lot more carbon/caked oil on the top of the piston than the others. I already knew that cylinder was getting oil in it somehow from the plugs. #6 plug was always darker than the others and had oil on the threads. Guess it was the rings. Half the pistons ring lands are clean and the other half are not. Below are two pictures of the same piston just turned 180 degrees. Third is an old pic I had of the spark plugs last time I changed them. Attached Images __________________ 3.6L Twin Turbo V6 Garrett GT28 turbos -- Jacfab forged connecting rods -- Diamond forged pistons(10.5:1) -- Alky Control Methonal Injection -- CircleD 2E triple disc torque converter -- BMR suspension 10.75 @ 131mph

10-08-2015, 02:27 PM	#557
JantzenOKC Drives: '13 2LT/RS Twin Turbo Join Date: Aug 2012 Location: Edmond, Oklahoma Posts: 3,073	#6 piston top. Attached Images __________________ 3.6L Twin Turbo V6 Garrett GT28 turbos -- Jacfab forged connecting rods -- Diamond forged pistons(10.5:1) -- Alky Control Methonal Injection -- CircleD 2E triple disc torque converter -- BMR suspension 10.75 @ 131mph

10-09-2015, 01:06 PM	#560
JantzenOKC Drives: '13 2LT/RS Twin Turbo Join Date: Aug 2012 Location: Edmond, Oklahoma Posts: 3,073	It's amazing how light this bare engine block is. Might have to turn it into a man cave table. Attached Images __________________ 3.6L Twin Turbo V6 Garrett GT28 turbos -- Jacfab forged connecting rods -- Diamond forged pistons(10.5:1) -- Alky Control Methonal Injection -- CircleD 2E triple disc torque converter -- BMR suspension 10.75 @ 131mph