Blown Motor Pics! -4 LEX

[holeinmypocket]

I have a cylinder head, stock internals and a few other stuff for sale i would post them but my post count isn't high enough lol...ne ways i blew up this past july and finally got around to getting the motor pulled over the last couple of days....enjoi

Motor Still In The Car
















Getting The Motor Out!



















reserved

[superskaterxes]

why does it look like your head is brand new inside?

[dizzin9]

mods?

[Thestaplegunkid]

Looks identical to my zoom zoom boom, mine blew up last July too bad month.

[-cj-]

No warranty?

[holeinmypocket]

Originally Posted by superskaterxes why does it look like your head is brand new inside?

it's the flash that makes it look brand new...that is the head that i am selling has a bent valve..will need new valves...but shit it would be a good spare head for a PnP

Originally Posted by -cj- No warranty?

fuck no...did you see the bottom end of that motor...no balance shaft..plus fully bolted on stock internals

Originally Posted by Thestaplegunkid Looks identical to my zoom zoom boom, mine blew up last July too bad month.

i know i remember seeing your pics

Originally Posted by dizzin9 mods?

fully bolted stock internals on a PG reworked K04

[dizzin9]

got a tune? boost controller?

[gsrtype1]

OMG! Lex is doing "right hand sally" LOL Just given hard Lex! haha

[-cj-]

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.

[Ghost Rider]

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....

[Lex]

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.

[holeinmypocket]

Originally Posted by dizzin9 got a tune? boost controller?

stock tune with CPE full throttle reflash and CPE no fuel cut flash...had a boost controller..still had spikes though

Originally Posted by gsrtype1 OMG! Lex is doing "right hand sally" LOL Just given hard Lex! haha

lmao

Originally Posted by Lex 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.

SO LEX WHAT DO U SEE FROM THE PICS? I haven't gotten that far yet what u see in the pics is what i have...do you want the shortblock lex...free just pay shipping lol otherwise i might clean it up and make a coffee table out of it for my beer when i work on my car in the garage lol

Originally Posted by -cj- 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.

not as easy as it sounds...mazda opened my hood and saw everything and closed it 10 secs later and pointed me to the door lol

[darth vader]

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

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?

[holeinmypocket]

Originally Posted by darth vader 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 Soooo...we're talkin' ~21 psi on a stock tune with only throttle and no fuel cut flash + fully bolted air and exhaust...hmmmm, I wonder why it blew?

It was boosting 17 psi DD...took it to the track once at 20 psi 2-3 runs in 1/8th mile...saw a lot of boost creep though

i was in shock when it happened this past july

[Lex]

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.

[darth vader]

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.

[holeinmypocket]

Originally Posted by Lex 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?

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

[Lex]

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?

[Fobio]

my memory vaguely remembers so much behind/about this...

[danesti]

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.

[holeinmypocket]

Originally Posted by Lex 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?

Just driving to work. Yeah i had some nice races with it but other then that i drove that shit 75% of the time with my kids in the backseat and i drove responsibly then...but despite all of that shit....i can't wait to get this bitch built...i learned my lesson

[subparpunk03]

Originally Posted by Lex 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?

Bouncing it off the 2 step? Like what TruBoost is doing here.

YouTube - mazdaspeed 3 with 2 step

YouTube - mazdaspeed 3 with 2 step

[holeinmypocket]

Originally Posted by subparpunk03 Bouncing it off the 2 step? Like what TruBoost is doing here. YouTube - mazdaspeed 3 with 2 step

yeah that is being taken off of the car...lol

[subparpunk03]

Good man That launch control stuff is garbage... just learn to drive better.

[Lex]

Originally Posted by danems6 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.

It was smoking before it blew because the rod was bent and the piston was skewed in the bore and the rings no longer sealed properly.

Many people notice excessive smoking when a rod is bent.

[Darksun280]

Originally Posted by Thestaplegunkid Looks identical to my zoom zoom boom, mine blew up last July too bad month.

Mine blew july 4th last year BADDDDD month...

[holeinmypocket]

Originally Posted by Darksun280 Mine blew july 4th last year BADDDDD month...

july here too

Originally Posted by subparpunk03 Good man That launch control stuff is garbage... just learn to drive better.

yeah man i am just going to sell that shit for cheap once i take it off tomorrow

[bf360]

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?

[Lex]

I should mention - don't get that CDFP all dirty or banged up if you're reusing it.

[holeinmypocket]

Originally Posted by Lex I should mention - don't get that CDFP all dirty or banged up if you're reusing it.

i know lex...it's wrapped in a plastic bag right now

Originally Posted by bf360 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?

yea i had nothing to monitor it with...i could just hear audible knock

[Doc]

Originally Posted by subparpunk03 Bouncing it off the 2 step? Like what TruBoost is doing here. YouTube - mazdaspeed 3 with 2 step

I fail to see how this can hurt the motor.. correct me if im wrong though..

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

As i said if i have missed where this is damaging something let me know.. im curious

Doc (<---no WOT box.. yet)

[holeinmypocket]

Originally Posted by Doc I fail to see how this can hurt the motor.. correct me if im wrong though.. 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 As i said if i have missed where this is damaging something let me know.. im curious Doc (<---no WOT box.. yet)

if you do it too much you can flood your cylinders with gas...not good

[danesti]

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.

[slo wyt]

Damn, I blew up last summer too.
Best of luck, man.

[Doc]

Originally Posted by danems6 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.

Ahh I thought it interrupted the spark only momentarily, then lights it off again.. hence the flames out the exhaust.. and continues to repeat this process.. IE no build up of fuel.. Well there you go I learnt'ed'ed something new

And holeinmypocket...whats with the groan champ?

Cheers guys

Doc

[danesti]

well in that case i hope im right. haha.
any one feel free to correct me if im wrong, i very easily could be.

[holeinmypocket]

Originally Posted by danems6 well in that case i hope im right. haha. any one feel free to correct me if im wrong, i very easily could be.

I agree with you I have a local here that has one. He would blow fireballs all over the place with it during night time. Now when he does it, it sounds like the stroke or something is stuttering not like "putt putt putt putt putt putt" you know the normal noise. He got a compression test this past fall and compression in all cylinders were all down. Took the head off and his cylinder walls were discolored like blue/black/orange. My guess is it's from the gas vapor being held up in the cylinder causes it to settle and some what puddle on top of the piston and the spark not being able to light it until he steps off of the two step. Result he removed it and got a warranty claim through mazda. That mother fucker, otherwise he is completely stock except for mscai, n2mb 2 step launch controller and some wheels.

[Doc]

at least we're both honest we dont have no clue

Originally Posted by holeinmypocket I agree with you I have a local here that has one. He would blow fireballs all over the place with it during night time. Now when he does it, it sounds like the stroke or something is stuttering not like "putt putt putt putt putt putt" you know the normal noise. He got a compression test this past fall and compression in all cylinders were all down. Took the head off and his cylinder walls were discolored like blue/black/orange. My guess is it's from the gas vapor being held up in the cylinder causes it to settle and some what puddle on top of the piston and the spark not being able to light it until he steps off of the two step. Result he removed it and got a warranty claim through mazda. That mother fucker, otherwise he is completely stock except for mscai, n2mb 2 step launch controller and some wheels.

Sorry for the thread jack mate.. and sorry to hear you popped

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

[darth vader]

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.

[Lex]

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