**damn!! I Think I Blew It Up~!***
#1
Ronald..
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**damn!! I Think I Blew It Up~!***
just like the title says, i think i blew the motor up last night...
heres the story, i was out last night driving the car running 12 psi (would spike to 14 because of the cold weather) and i gave it one really hard pull. i ran through 1-3 and by the end of it i heard something that sounded like metal rubbing together. i put it in nuetral and the car stalled out on its own. i tryed to start it again but all i got was cranking. we pulled the egi fuse and tryed to crank it over, but nothing. so i got it pushed started and it actually started....but i had to stay on the gas or else it would want to stall out. well i limped it back to the shop and the whole way it felt and sounded like i was running on half a motor. also the boost gauge needle was shaking pretty bad so i thought that the turbos might have blown. well when i got to the shop my power fc said that my trailing plugs where only reading 6-7 when cranking the engine so that might be part of it too. well guys im FREAKING out on what could be wronge with the car and would really appreciate any input on this whole thing!
heres the story, i was out last night driving the car running 12 psi (would spike to 14 because of the cold weather) and i gave it one really hard pull. i ran through 1-3 and by the end of it i heard something that sounded like metal rubbing together. i put it in nuetral and the car stalled out on its own. i tryed to start it again but all i got was cranking. we pulled the egi fuse and tryed to crank it over, but nothing. so i got it pushed started and it actually started....but i had to stay on the gas or else it would want to stall out. well i limped it back to the shop and the whole way it felt and sounded like i was running on half a motor. also the boost gauge needle was shaking pretty bad so i thought that the turbos might have blown. well when i got to the shop my power fc said that my trailing plugs where only reading 6-7 when cranking the engine so that might be part of it too. well guys im FREAKING out on what could be wronge with the car and would really appreciate any input on this whole thing!
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you said boost "spike", but it sounds like creep....spike isn't caused by cold weather, generally speaking
another motor down the tubes because someone was too cheap to port the wastegate (and yes I am guilty myself).....DON'T DRIVE YOUR CAR IF YOU HAVE CREEP (LOSS OF BOOST CONTROL), IT AIN'T WORTH IT
another motor down the tubes because someone was too cheap to port the wastegate (and yes I am guilty myself).....DON'T DRIVE YOUR CAR IF YOU HAVE CREEP (LOSS OF BOOST CONTROL), IT AIN'T WORTH IT
#5
Ronald..
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Originally Posted by charlies7
check map sensor....probably blown. Rule of thumb never run more than 10 psi on stock ecu
#6
Original Gangster/Rotary!
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Sounds blown to me. Get a compression check to be sure. How close are you to NJ? Bring the car up to me and Ihor, we'll give you a stout streetported motor. PM me if interested.
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#12
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another motor down the tubes because someone was too cheap to port the wastegate (and yes I am guilty myself).....DON'T DRIVE YOUR CAR IF YOU HAVE CREEP (LOSS OF BOOST CONTROL), IT AIN'T WORTH IT
If you wanna play, be ready to pay.
#13
is that rice i smell?
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what exactly is creep by the way? i always thought it was the same as a boost spike, but im assuming im rong, lol ive learned alot in my past year of ownership, but dont know everything yet (im working on it )
#14
exhaust overheat
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Originally Posted by bosscobra
what exactly is creep by the way? i always thought it was the same as a boost spike, but im assuming im rong, lol ive learned alot in my past year of ownership, but dont know everything yet (im working on it )
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is that rice i smell?
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so if my boost pills removed because of boost spikes (streetported motor) and its boosting strictly off the wastegate (6psi i believe) do i shouldnt have to worry about that should i? i dont have a boost gauge hooked up yet.
#16
Original Gangster/Rotary!
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Originally Posted by bosscobra
so if my boost pills removed because of boost spikes (streetported motor) and its boosting strictly off the wastegate (6psi i believe) do i shouldnt have to worry about that should i? i dont have a boost gauge hooked up yet.
#17
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Originally Posted by GoodfellaFD3S
Yes, you should worry about it. In the past, I would have my boost controller off, meaning 7 psi boost. I'd still creep to 15 psi on cold weather.....from 5500 to 8000 or so the boost would skyrocket. this was with open exhaust and stock wastegate. If people would leave a cat on the car, they wouldn't have these problems.
it sucks people have to learn the hard way when they dont have a boost gauge
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the boost gauge won't necessarily save you because you can't react that quick
to run a mp safely you need
1. ported WG
2. reliable boost control
3. plenty of fuel, and preferably
4. wideband AFR
to run a mp safely you need
1. ported WG
2. reliable boost control
3. plenty of fuel, and preferably
4. wideband AFR
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ive got a highflow cat on there. no boost conroller as of yet. so ive got the fuel coverd. but the waste gate i dont think was ported when they did a streetport. i run my motor fairly hard on ocasion doing 35 mph pulls just cause i get bored. (a couple in this cold weather) my motors been shaking horribly at 1200 rpm, lol but i have my own thread started about that so i wont hijack this one with questions about that, but i found out what i need to know about boost creep. bassicly need to just go single and have a half way decent wastegate and simplify the crap outa my car. thats if my motor isnt blown. if thats the case ive got an ls2 in the carport. build that up and go that way for my daily driver and do a 20b project when i get extra cash. thanks for the info guys
#20
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Originally Posted by Improved FD
you said boost "spike", but it sounds like creep....spike isn't caused by cold weather, generally speaking
another motor down the tubes because someone was too cheap to port the wastegate (and yes I am guilty myself).....DON'T DRIVE YOUR CAR IF YOU HAVE CREEP (LOSS OF BOOST CONTROL), IT AIN'T WORTH IT
another motor down the tubes because someone was too cheap to port the wastegate (and yes I am guilty myself).....DON'T DRIVE YOUR CAR IF YOU HAVE CREEP (LOSS OF BOOST CONTROL), IT AIN'T WORTH IT
In any case, it's yet another person losing an engine to too much boost. So sad.
Dave
#21
T O R Q U E!
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Originally Posted by 93rx74lyfe
just like the title says, i think i blew the motor up last night...
heres the story, i was out last night driving the car running 12 psi (would spike to 14 because of the cold weather) and i gave it one really hard pull. i ran through 1-3 and by the end of it i heard something that sounded like metal rubbing together. i put it in nuetral and the car stalled out on its own. i tryed to start it again but all i got was cranking. we pulled the egi fuse and tryed to crank it over, but nothing. so i got it pushed started and it actually started....but i had to stay on the gas or else it would want to stall out. well i limped it back to the shop and the whole way it felt and sounded like i was running on half a motor. also the boost gauge needle was shaking pretty bad so i thought that the turbos might have blown. well when i got to the shop my power fc said that my trailing plugs where only reading 6-7 when cranking the engine so that might be part of it too. well guys im FREAKING out on what could be wronge with the car and would really appreciate any input on this whole thing!
heres the story, i was out last night driving the car running 12 psi (would spike to 14 because of the cold weather) and i gave it one really hard pull. i ran through 1-3 and by the end of it i heard something that sounded like metal rubbing together. i put it in nuetral and the car stalled out on its own. i tryed to start it again but all i got was cranking. we pulled the egi fuse and tryed to crank it over, but nothing. so i got it pushed started and it actually started....but i had to stay on the gas or else it would want to stall out. well i limped it back to the shop and the whole way it felt and sounded like i was running on half a motor. also the boost gauge needle was shaking pretty bad so i thought that the turbos might have blown. well when i got to the shop my power fc said that my trailing plugs where only reading 6-7 when cranking the engine so that might be part of it too. well guys im FREAKING out on what could be wronge with the car and would really appreciate any input on this whole thing!
If you can't control the boost, then don't boost!
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Originally Posted by dgeesaman
If it's a stock ECU, it should fuel cut at 12psi if there is a boost creep problem.
retarding the ignition would have been a better approach imo
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