My Motor Carnage pics!!!

YotaRob

U.S.Navy
Jun 18, 2008
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I got an idea, put that fresh crank and bearings from the blown engine into the engine with the JE's. Might be a quick fix if shit hits the fan at the machine shop.
 

grimreaper

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Jul 2, 2008
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^^ thats what i said if the machine shop throws their hands up and points the finger at him, hopefully not but at least he has the parts between the two for one complete block.

30 psi vac on is a LOT of fuel with a walbro and 680's!!

are the wires for the injector clips spliced? any breaks, shorts or exposed wires?
 

IJ.

Grumpy Old Man
Mar 30, 2005
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IJ.;1282122 said:
Correct it's either blocked or under voltage so lets just enough fuel in for it to do a really good impersonation of a plasma cutter (Al spray on the rod is a dead giveaway)

It's doing the machine shop an injustice to blame this on them.
Oil is an after effect, mine torched a hole in the piston and apart from sounding like a WRX it drove ok on the 50 mile return trip from the dyno as long as you kept it out of boost (James Bond smoke screen if it went + ;) )

I drained 2 Qt's of Oil from the IC, lucky my Oil system was 12 Qt's capacity back then.

I've posted this a few times but whatever you calculate you need for fuel volume to be safe double it.

ie 1 x Tsunami pump would handle my HP requirements for the 7M I installed 2

700cc Injectors would have coped with a little bit of overhead I fitted 1000 cc's

1 x -6 line would have done the job I fitted 2.

No spark is usually no real problem but run it low in the fuel supply and your engine has minutes but more likely seconds to live :(
 

Supracentral

Active Member
Mar 30, 2005
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IJ.;1282793 said:
Oil is an after effect, mine torched a hole in the piston and apart from sounding like a WRX it drove ok on the 50 mile return trip from the dyno as long as you kept it out of boost (James Bond smoke screen if it went + ;) )

I drove home from TX2K2 like that with broken valves in #1 and a cracked ring... 800+ miles. 7M has always gotten me home. :)
 

IJ.

Grumpy Old Man
Mar 30, 2005
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LOL Ditto Mike mine always bought me home no matter how badly I broke it!

Only time it was towed turned out to be I hadn't clipped a plug into the ECU correctly and it fired up the second I did!
 

suprahero

naughty by nature
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Aug 26, 2005
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Supracentral;1282799 said:
I drove home from TX2K2 like that with broken valves in #1 and a cracked ring... 800+ miles. 7M has always gotten me home. :)

It's mostly my fault he drove it home from the Texas meet, but we had two different problems. My car wasn't running lean like his was when I drove mine home last year. I really should have used my X Ray vision to see the internal damage...........I take full responsibility Ryan.........as long as it doesnt cost me anything. I'm still recovering from the meet myself. Sounds like you have some good internals ready to go in, but hopefully you can find something wrong before you go through all of this again.
 

frontierguy25

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Mar 26, 2007
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Jay, it's not your fault, I should've just came back to the track the next day with the truck and trailer. I was just afraid of leaving my car at the track with my wheels, tools, parts in the back of the car over night! So I limped it to Austin then came back the next day to get her. So no worries! It was great to meet you finally and see your car.

On my way to Austin it was like a James Bond smoke screen even under regular driving! Until this ricer in a Solara was riding my ass, I did my best to let him know to stop being a dick. I couldn't even see his headlights after the smoke show I put on for him after he almost rammed into the back of me!

I might just do what Rob and Grim said, put this crank and rods into my other motor with the JE's and see where that gets me. But I need to figure out I guess what is going on. I have a new wiring harness, good injectors, good walbro, afpr, what else do I check??
 

frontierguy25

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Mar 26, 2007
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I guess I would have to do that when I put the car back together. But will do! I don't want another block with NPR pistons again! I think that I mentioned that before, these were the pistons they gave me. I'm wishing that I had my JE's in there still:3d_frown:

Anything else I should check?

My car will go 11's!! I'm getting 12's with bhg's and blown pistons!! With a good run 11's should be easy! That's my goal, I have the setup to do it!
 

IJ.

Grumpy Old Man
Mar 30, 2005
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Doesn't really need to be together to do this test.

Just need a head and the fuel rail hooked up.

The injectors tested fine so can be ruled out the next suspect is the pump and filter, then I'd be triple checking the injector wiring if everything else passes.
 

frontierguy25

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Mar 26, 2007
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IJ.;1282931 said:
Doesn't really need to be together to do this test.

Just need a head and the fuel rail hooked up.

The injectors tested fine so can be ruled out the next suspect is the pump and filter, then I'd be triple checking the injector wiring if everything else passes.

I have a new fuel filter that I put on a year ago or so and my injectors clip right into the stock harness, so no soldering was done. I did look over the wires and they are all good. I had to actually get the loom off to look at it because the harness is new.

I think that this mostly happened because the cylinder was losing compression 50 miles after the install. And on the 250mile trip it was getting worse and then I blew it up once I started making passes. But hey who knows until we take it apart at the machine shop and see all the damage.
 

IJ.

Grumpy Old Man
Mar 30, 2005
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I can't really see an engine mechanical issue causing it to torch a piston if the pump test is fine and the fuel system checks out tank to rail I'd be looking into the management.

Not sure what system you run but I'd go through any config files if it's standalone and make sure there aren't any funky compensations applied in any of the sub menus.

I tend to log most hard pulls on a fresh motor just in case something like this happens :(

Hey I get along with most people it was just a missunderstanding ;)
 

grimreaper

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Jul 2, 2008
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how old is the walbro? 12v mod by chance?

The loaded test is a keeper for future trouble shooting.

I think the Npr's might be considered a sacrifice, because that would/could have been a JE piston in there.

Makes my next mod a standalone instead of a built motor or jz swap. I know you've ran the setup for quite some time though. I want to know what caused it!
 

figgie

Supramania Contributor
Mar 30, 2005
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frontierguy25;1282935 said:
I have a new fuel filter that I put on a year ago or so and my injectors clip right into the stock harness, so no soldering was done. I did look over the wires and they are all good. I had to actually get the loom off to look at it because the harness is new.

I think that this mostly happened because the cylinder was losing compression 50 miles after the install. And on the 250mile trip it was getting worse and then I blew it up once I started making passes. But hey who knows until we take it apart at the machine shop and see all the damage.

Like how new?

Keep in mind that from a manufacturing propective, those harness even though still wrapped probably been sitting on a shelf for a LONG time.

Unless you build or checked the harness carefully (which it is hard to do as toyota wraps the crap out of them), then you are hoping that it is not the harness.

anyway, you are running an SAFC currently or a standalone? Remember that the fueling is directly tied to timing when "tricking" the stock TCCS.
 

frontierguy25

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Mar 26, 2007
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Poodles;1283104 said:
My new harness was 100% new, not NOS (had to wait for them to make it)

Same here they had to order it from Japan! It took 3.5 weeks to get it. I have looked it over now completely and unwrapped everything and all looks good.