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Originally Posted by saint_foo
(Post 482735)
neogenesis. Happened shortly after we got onto I95.
Originally Posted by neogenesis2004
(Post 482785)
I think it was the timing, definitely a broken ringland or 2, or 3, or 4. I drove it home making no more than 30psi oil pressure because if I got into boost it would just eject oil out of the breather and smoke out whoever was behind me. What blows my mind is that there was no ping on the dyno either heard or logged. I'm taking today off to cool down, over the next week I'm just going to do a stock rebuild of Brain's old block sitting in my garage and put that in the car, and swap the t3 60trim compressor back on. Then I'll just stick with 13-15psi to be safe and still have a fun car. Plus I need something to test my super (not so secret) WI project on.
I was very disappointed in my output, both in delivery and in total HP. I was expecting north of 275@19psi, so I think that compressor/trubine just are not a good match. So today is pizza/football day, and I'll rebuild the motor during the week. Now to get Brain to convince his wife to let him have another Saturday off to help me swap motors.... I know exactly how you feel right now. Take a few days off and relax/get your mind off this shit.
Originally Posted by PhantomRoadster
(Post 482856)
Do you think you had the same issue as 18psi (although he was on the base map)? He was running with the adaptronic too. Just bought it so I don't want to make the same mistake.
https://www.miataturbo.net/forum/t40227/ https://www.miataturbo.net/forum/t40225/ My map was almost completely autotuned when it blew. AFR's were great, on the conservative side for sure, there was NO audible or recorded knock, and POW. ls1motorsports installs his adaptronic, has it running for less than a day, no knock recorded or heard, and POW, blows 2 rods out the side. ZxTex blew his ringlanding on a supertech piston as well. So I'm wondering: is the Adaptronic either: 1) Not reading the stock knock sensor correctly or 2) Advancing timing more than it shows or we think? Not placing blame or anything at all, just really curious. Neo can you post your map that was on the car right before it blew? What psi/spark/afr was it running at? |
Just wanted to say thanks to everyone especially Braineack for making the arrangements. I had a blast as usual. Next year I'll show up for the karting if someone can give me a place to sleep.
Thanks for letting an n/a crash the turbo party! :) BTW, how much boost was Mann running? |
I think he said 10psi with a 2860rs
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Yup 10 lbs.
*edit* pics put in media thread |
Originally Posted by the_man
(Post 482842)
The lack of video of the ruptured heater hose and ensuing geyser is fail. Miataspeed2005 took the faceful of coolant pretty well, though.
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Originally Posted by 18psi
(Post 482888)
This is starting to kinda scare me a little bit. My map was almost completely autotuned when it blew. AFR's were great, on the conservative side for sure, there was NO audible or recorded knock, and POW. ls1motorsports installs his adaptronic, has it running for less than a day, no knock recorded or heard, and POW, blows 2 rods out the side. ZxTex blew his ringlanding on a supertech piston as well. So I'm wondering: is the Adaptronic either: 1) Not reading the stock knock sensor correctly or 2) Advancing timing more than it shows or we think? Not placing blame or anything at all, just really curious. Neo can you post your map that was on the car right before it blew? What psi/spark/afr was it running at? |
Originally Posted by saint_foo
(Post 482920)
When Jes (sp?), Paul's GF, said, "hey, no one got it on video?!" I suggested that we can fill it up w/ more water and do another pull.:giggle:
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anyone have the video of my BOV leaking under high boost? Mann sent me one where everyone noticed but i need the one where it was happening, mann also said he was holding a flashlight in the video on it if that helps jog any memories
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Guys (and Jes), sorry that I had to bail on dyno day. Couple of days ago I had another bad misfire problem. Paul hooked me up with some extra injectors .... I went to install them and managed to round-off one of the fuel rail bolts ..... etc., etc. .... comedy of errors. Anyway, I now own a round-bolt-removal-kit, which I shall attempt to use tomorrow. Meanwhile the Boundary COPS are due very soon. When everything is running again then I'll probably visit a Dynojet shop near here rather than hauling down to Delaware.
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Originally Posted by 18psi
(Post 482888)
...Neo can you post your map that was on the car right before it blew?
What psi/spark/afr was it running at? That is curious. Neos motor sounded like it was working hard, we were very surprised by his output. During one pull there were 4 people recording his run, I had my head close and I heard no knock, and it's easy to hear (sometimes see) it on the dyno... |
His number were very low tho with that kind of boost and spark! I think he had some kind of problem before he even dynoed the car, did he check compression before the dyno ?
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his compression was good. We put that block in the day before we did mine...
We were setting his boost just before he ran on the dyno, it felt great breaking traction in 4th gear! |
Originally Posted by disturbedfan121
(Post 482947)
anyone have the video of my BOV leaking under high boost? Mann sent me one where everyone noticed but i need the one where it was happening, mann also said he was holding a flashlight in the video on it if that helps jog any memories
Looks like tim should have it... http://www.boostedmiata.com/gallery2...serialNumber=2 |
Bummer Brian- were you logging your pulls?
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Maybe it was the people who built the block:giggle:
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i think he just pushed the timing too much, but still, it's odd that there was no knock logged or heard on the pulls. Thing was running solid for the month before and his 3 hour drive north.
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How much timing did he run up top?
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i think it was 34 degrees which is insane but he kept making more torque and didn't lose any hp, and there was no ugly noises
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34? it was more like 26-27° IIRC.
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I thought he was at 18º and then added 6, so 24º. Maybe my memory has failed and it was a couple degrees more, but it shouldn't have been totally unreasonable with his 7.something:1 pistons. Don't know if he added 6 across an entire row or just in the few highest rpm cells at whatever boostsz he was running, but I was standing near the car for all 9 of his pulls and never heard any bad noises. Only sign of trouble I saw was the giant smoke cloud in my rear view mirror. :cry:
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