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why does it look like your head is brand new inside? |
mods? |
Re: Blown Motor Pics! -4 LEX Looks identical to my zoom zoom boom, mine blew up last July too ;) bad month. |
No warranty? |
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got a tune? boost controller? |
OMG! Lex is doing "right hand sally" LOL Just given hard Lex! haha |
Shit dude, I would have dropped the balance shaft in through one of the holes in the motor and pushed the car onto a Mazda lot for warranty work lol. |
no wonder the motor blew; one of the photos shows quite clearly you had a finger in the block. Thats bound to cause some clearance issues. shits like that damn Wendy's Chili.... |
Nice pics. How many miles did you put on it before it blew? Are any of the other rods bent as well? It's usually not just 1. |
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Mang, that some fucked up shit there, no telling the exact cause due to etensive frag...other than pushing the little car into an endless Viagra hard-on that finally came....at least you seem to be taking it well...I'd be :aargh4: Soooo...we're talkin' ~21 psi reworked turbo on a stock tune with only throttle and no fuel cut flash + fully bolted air and exhaust...hmmmm, I wonder why it blew? |
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i was in shock when it happened this past july :smileeek: |
Shipping the block will be expensive and probably not worth it. I see a couple of things: 1. Did you have a fuel pump? Did you have it from the time you started adding parts such as a turbo back exhaust? How many miles fully bolted? 2. You mention boost spikes, full control flash, not cut flash. How were your AFs? Any WOT knock? I will be honest, the bottom end is NOT tolerant to spikes and high boost. Any low RPM spiking over 20psi is probably asking for bad things to happen. High load (highway) spiking is the worse and a few shots of detonation added to those low RPM loads bent a rod that finally let go. Did you have any smoking or clutch vibrations prior to it blowing? What year was the speed? Check the other rods when you pull them out for straightness. Any pitting on the pistons due to detonation? EDIT: You mention you were running 17psi. What was it actually spiking to when you got on the throttle? I bet that with those mods a lot more. |
Lex: Look at the piston pics, dude, they're all's well that ends badly. They don't show any signs of det and the edges near the lands don't show cracks from being pushed down either. |
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1. I bought the car already built like this...it had a Mr. Lilguy fuel pump.....i literally had it for two months and boom..i drove it for 5K miles during that two month period 2. I didn't have a dashhawk at that point the funny thing is that i had one on order that week...yeah i mean full control flash and no cold cut flash from CPE...i could here knock mostly in the lower rpms... 3. it was a 07 GT with 35K...smoked alot 20 mins prior to blowing up while i was at the bank drive thru....i honestly couldn't tell you about the vibrations cuz i had trz rmm and tranny mount...lol spike to like 20 psi in 3rd thru 5th ...sometimes when i would go in higher elevations my target boost would be 18-19 psi for some reason due to the elevation ...i didn't like how the car felt like that |
Aw shit, you're the guy with tru-boosts car. Doesn't surprise me it blew. Untuned and that thing was beat on. Word got out that you weren't soft on it either. If you heard knock, it was definitely a problem. The smoke prior to it blowing meant the rod bent. Do you remember what you did just before it started smoking? Hard pulls? Anything of the sort? |
my memory vaguely remembers so much behind/about this... |
curious about the smoking before it blew. probably not your turbo because it was aftermarket (sst dont smoke from what ive heard?) could it be oil getting consumed some other way? lack of oil/ seizing anywhere/ ________ / fatigued rods/ fuck our lives...???? ^^^^^^^ fill in blank. i will thank you. |
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Good man :) That launch control stuff is garbage... just learn to drive better. |
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Many people notice excessive smoking when a rod is bent. |
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That is some serious carnage, i see your cdfp hanging in your engine bay lol You were hearing knock down low? Did you ever actually log or see how high your knock counts were getting? |
I should mention - don't get that CDFP all dirty or banged up if you're reusing it. |
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There's bugger all load... maybe not so good for your cat.. but I cant see how this hurts anyones motor.. If im missing something here.. fill us in It just seems like as a community we point the finger at all sorts of things, and then scare the shit out of everyone...lol:shocked: As i said if i have missed where this is damaging something let me know.. im curious Doc (<---no WOT box.. yet) |
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if you do it too much you can flood your cylinders with gas...not good |
if you flood the cylinders enough to get liquid instead gas form, your fucked cause liquids are not compressible like gasses.. which can allow damage to occur on the compression stroke. kinda a long shot but if you were 2-stepping for a long time its a possibility. |
Damn, I blew up last summer too. Best of luck, man. |
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And holeinmypocket...whats with the groan champ?:poke: Cheers guys Doc |
well in that case i hope im right. haha. any one feel free to correct me if im wrong, i very easily could be. |
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at least we're both honest we dont have no clue Quote:
Although Im still not sold..I find it way too hard to believe that the fuel can puddle.. if there's flames, its getting ignited.. (poor ceramic cat though), end of story... well for what I can gather anyway |
It's not unusual for gas to be unburned in the cylinder during normal operation...that's part of the reason we have cats. if you're stutter-boxing the ignition, you can count on alot more unburned fuel in the cylinder. 2-steps are designed for drag cars that have short engine life and they are only used for a few seconds at the start, not as a toy for some street punk to play with. |
On top of this revving the motor out to redline in neutral is not healthy for it due to the forces on the rotating assembly at that RPM |
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