Spool Turbo MP3 Blew Up
- Thread starter TurfBurn
- Start date
Now that I have my cylinder numbering straight in my head... I also have my EGT in the #1 runner, and it is also one of my leanest cylinders. I definitely see more heat on the plugs there than on any of the others. 1 and two run lean with 1 leaner than 2 and then 3 and 4 run a considerable sight richer based on my plug coloration.Kooldino said:
You know... It crosses my mind now that Terry mentioned the FPR I have is a POS (putting in an AEM adjustable with the rebuild) and I half wonder if it failed and went terribly rich. I dont' know if it could have gone rich enough to blow the engine.Bigg Tim said:
It'll be great when I get stuff apart and I can get rid of a good number of avenues of speculation as to what happened in there.
speedhawaii
Member
sore!
- :
- 2001 Mazda MP3
glad to see that gt-2 i sold you is helping out. heh- getting your moneys worth- three mazdas+3 brothers+ gt2=bruised egos
(sad1) (sad1)(sad1) My my my...........a sad day(notcool)
Sorry I could not get on here earlier but I have been traveling, busy etc.
I was contacted by Turf, and he seemed pretty optimistic about it.
btw......sorry I did not call you back on friday, I was super friggin busy, so I decided to get on here.
It seems very strange, and I did not have a chance to read the entire thread but did you have a wideband in the car? if so what was the a/f? Your egt's did seem a bit high if I remember correctly. Where they supposed to be at 720c?
Forgive me since I do not rememeber the exact parameters.
Also did you datalog before it blew by anychance? That would be nice to have.
On the microtech did you have the overboost protection feature on that cuts ignition?
I think I had it set at 12psi then it would cut it up. It seems you had all your ducks in a row. Possibly the engine just saw enough and decided to take a s***. It saw some pretty high psi for a stock motor.
I hope you get it back on the road soon.........I sure do miss it. Im glad it has a good owner(flash)
About the ignition I never had any issues with it on high boost and about the mani flow, it never glowed on the dyno.......I dont think that was related to the failure but you never know.
I know that the fpr was a POS and possinbly one of the injectors took a dump. So many variables really. I hope you find out what really hapened.
Sorry I could not get on here earlier but I have been traveling, busy etc.
I was contacted by Turf, and he seemed pretty optimistic about it.
btw......sorry I did not call you back on friday, I was super friggin busy, so I decided to get on here.
It seems very strange, and I did not have a chance to read the entire thread but did you have a wideband in the car? if so what was the a/f? Your egt's did seem a bit high if I remember correctly. Where they supposed to be at 720c?
Forgive me since I do not rememeber the exact parameters.
Also did you datalog before it blew by anychance? That would be nice to have.
On the microtech did you have the overboost protection feature on that cuts ignition?
I think I had it set at 12psi then it would cut it up. It seems you had all your ducks in a row. Possibly the engine just saw enough and decided to take a s***. It saw some pretty high psi for a stock motor.
I hope you get it back on the road soon.........I sure do miss it. Im glad it has a good owner(flash)
About the ignition I never had any issues with it on high boost and about the mani flow, it never glowed on the dyno.......I dont think that was related to the failure but you never know.
I know that the fpr was a POS and possinbly one of the injectors took a dump. So many variables really. I hope you find out what really hapened.
Yeah thats crazy that 3 brothers have turbo mazda's
Damn turf was tellin me about that. Thats hardcore(headbang)
Damn turf was tellin me about that. Thats hardcore(headbang)
Yep.... and the last few minutes before the car blew it was reading 10.2 or below pretty much everywhere. Normally under boost it was around 11.8 to a max of 12.2 for the AFR.spoolinmp3 said:
720C is rather low. Cruising on the highway I'd see about 710-730. If I ran a gear pretty long and hard (going to 100+ mph etc from lower speeds) I'd see up to around 810C.
No datalog. But the microtech had overboost protection enabled and cutting ignition once boost hit 14 psi... Didn't hit it at all that day at the track though... I"ve hit it a few times so I definitely know what it feels like. Yep... but that's a tuner car! It's the way it should be!
hmmm...
I need to record this in my mind: we need forged goodies inside...not just to raise the boost, but....to save the block...
...makes me think If I had forged rods inside, they wouldnt bend like that and at least had my block intact. DAMN!
I will buy another motor, keep it @ 7psi until forged stuff comes.
Whats your plan Turf?
I need to record this in my mind: we need forged goodies inside...not just to raise the boost, but....to save the block...
...makes me think If I had forged rods inside, they wouldnt bend like that and at least had my block intact. DAMN!
I will buy another motor, keep it @ 7psi until forged stuff comes.
Whats your plan Turf?
My plans:
Car won't be back up until next year... but I'm getting a new block... putting forged internals into it. PandPing the head, hopefully/maybe getting a new set of cams from mazda motorsports (they have a new japanese intake and exhaust cams), and rebuilding from there pretty much. HOPING my turbo didn't take in metal, but won't know for a bit... and that will determine if I do more... otherwise that should basically be it... new block, head, and internals. I'm also going to polish my intake manifold myself, and some other things...
Car won't be back up until next year... but I'm getting a new block... putting forged internals into it. PandPing the head, hopefully/maybe getting a new set of cams from mazda motorsports (they have a new japanese intake and exhaust cams), and rebuilding from there pretty much. HOPING my turbo didn't take in metal, but won't know for a bit... and that will determine if I do more... otherwise that should basically be it... new block, head, and internals. I'm also going to polish my intake manifold myself, and some other things...
Last edited:
Little Beavis
Member
- :
- 2001 MP3-T (#911)
cams are a waste of money
I figured at 160 a piece and with the engine apart it would be somewhat worthwhile.Little Beavis said:
Both the exhaust and intake are not worthwhile on a turbo application? I would have thought that increasing duration or what not would be of use. Supposedly the one cam is worth nearly 12 hp in the NA application... so I figured it would at least have some positives for the turbo app...
Thoughts/explanation???
(I certainly have no issue with cutting 320 bucks off the rebuild cost if it is truly not worth the while!)
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