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01-25-2014, 08:14 PM
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#1 |
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Senior Member
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,221
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Tuner blews up lsx engine on dyno
nope not mine! but i would be so pissed shows damage to blcok at end
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David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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01-25-2014, 09:29 PM
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#2 |
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Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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Re: Tuner blews up lsx engine on dyno
Its nothing out of the ordinary. When playing with high horsepower stuff there is always the risk of the motor going boom. It sucks but its just part of the game.
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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01-25-2014, 09:58 PM
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#3 |
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Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: Tuner blews up lsx engine on dyno
Those pistons have been hit with Boost & Nitrous, Stock hypereutectic pistons don't hold up forever in those conditions. Forged pistons don't explode like that
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01-25-2014, 11:39 PM
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#4 |
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Registered User
Join Date: Jul 2009
Location: San Jose Ca
Posts: 2,871
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Re: Tuner blews up lsx engine on dyno
If I remember correctly that car had a lot of passes and miles on it running a lot of nitrous and boost. Amazing for a stock short block really.
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David Used parts build: http://67-72chevytrucks.com/vboard/s...d.php?t=638991 My brother's Nova: http://www.67-72chevytrucks.com/vboa...d.php?t=727985 Rear suspension rework: http://www.67-72chevytrucks.com/vboa...d.php?t=750557 Instagram: myfabguy |
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01-26-2014, 03:11 AM
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#5 |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: Tuner blews up lsx engine on dyno
Keep in mind thats a stock engine, slapped with a bunch of extra atmosphere...and look at how much power its making up to that point!
Forged pistons don't shatter the same way....but they can still make a hell of an underhood WHAMMO! When you play the "how much can we milk this motor game", its just playing the #'s more or less. You know what the theoretical limits are on a stock motor, and you know that its going to blow up eventually, so you just give it the best tune you can and give her hell. Its not nearly as bad as watching a high-dollar pro built engine (making the same horsepower in some cases ahahaha), melt down on the dyno. Cooking a $1500 5.3 aint' as bad as cooking a $8500 shop built engine.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING  |
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01-26-2014, 05:29 AM
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#6 |
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Senior Member
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,221
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Re: Tuner blews up lsx engine on dyno
Yeah i know but figurex it was fun to watch lol
__________________
David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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01-26-2014, 12:10 PM
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#7 |
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Registered User
Join Date: Aug 2007
Location: Corona, California
Posts: 7,998
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Re: Tuner blews up lsx engine on dyno
IMHO they meant to blow it up from the beginning.
If you listen before they start the talk about blowing it up. They also talk about how much abuse it has already taken. They had a lot of spectators if it was just there for a tune. They also talk about the owner having another engine for it when they are pushing it to the lift. Kim |
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01-26-2014, 01:25 PM
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#8 |
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Registered User
Join Date: Nov 2011
Location: South Dakota
Posts: 916
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Re: Tuner blews up lsx engine on dyno
im still amazed at how much power a turbocharged stock 5.3 makes...just think how much longer it would have lasted without all the abuse...imo its still a tough engine
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01-26-2014, 07:03 PM
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#9 |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: Tuner blews up lsx engine on dyno
If you ring gap an lq4, you'd be amazed at how far you can push them.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING |
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01-27-2014, 11:14 AM
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#10 | |
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Boosted Member
Join Date: May 2002
Location: Mackinaw, IL
Posts: 2,200
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Re: Tuner blews up lsx engine on dyno
Quote:
High cylinder pressure and detonation will still kill stock pistons and rods....  
__________________
1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2016 Ford Explorer Sport - Twin Turbskis 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards TURBO ALL THE THINGS!! |
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01-27-2014, 04:16 PM
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#11 |
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Registered User
Join Date: Jan 2010
Location: Loveland, CO
Posts: 1,921
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Re: Tuner blews up lsx engine on dyno
Did they ever mention how much boost they were pushing? I didn't hear any talk of boost numbers...
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Zach 1970 Chevrolet Custom Camper K20 1971 GMC Super K2500, 12V/NV4500 swap in progress 1971 Chevrolet Custom C10 1972 Chevrolet Custom Deluxe C20, 5.3/4L60E 1972 Oldsmobile Cutlass Supreme, 455/TH400, 3.73 posi 2004 GMC Sierra 2500HD, LB7/Allison, CCSB 2005 GMC Sierra 1500, 5.3/4L60E, CCSB |
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01-27-2014, 05:18 PM
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#12 |
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Boosted Member
Join Date: May 2002
Location: Mackinaw, IL
Posts: 2,200
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Re: Tuner blews up lsx engine on dyno
Boost numbers don't really mean much.
20 psi from an ebay GT45 is worlds apart from 20 psi out of a PT106.
__________________
1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2016 Ford Explorer Sport - Twin Turbskis 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards TURBO ALL THE THINGS!! |
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01-27-2014, 05:21 PM
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#13 |
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Registered User
Join Date: Aug 2007
Location: Corona, California
Posts: 7,998
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Re: Tuner blews up lsx engine on dyno
This is an interesting article on a boosted LS.
They make an insane amount of HP on what turns out to be a stock 4.8. Kim http://www.hotrod.com/techarticles/h...g_bang_theory/ |
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01-27-2014, 06:16 PM
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#14 |
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Registered User
Join Date: May 2010
Location: Mountain House, CA
Posts: 555
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Re: Tuner blews up lsx engine on dyno
That was pretty exciting, when I blew up my supercharged mustang years ago it was definitely anti-climatic. It broke a piston that had to tight of a gap on the ring.
I like videos of other peoples stuff going poof!! It sucks when its mine.
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My Chevy habit is paid for by Ford diesels... Here is my SLOW LS install: http://67-72chevytrucks.com/vboard/s...55#post6456355 Caliper Rebuild: http://67-72chevytrucks.com/vboard/s...d.php?t=613748 Upper Control Arm Bushings: http://67-72chevytrucks.com/vboard/s...d.php?t=616974 IG mattcrp1 |
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