This totally blows R.I.P 2.3 stroker:(

[SPYDERGSTTUNER]

OK so today was a very shitty day for me. My usual routine became a nightmare today, I don't drive my dsm much at all so I start her her up about 2-3 times a week just to keep everything flowing and keep my battery in good shape. Well today that took a very unusual turn that blew up my freshly built 7 bolt stroker. I jumped in, sat and grinned at the the beauty of my beast I stuck the key in the ol ignition to hear my motor rumble like usual and it did..... for about 5 seconds. Suddenly for no reason whatsoever it revved up completely all the way to redline and stayed there no matter what I did. I frantically shut the ignition off, nothing, pegged all the way to 9k,turned off the timer,nothing, still pegged, put my foot under accelerator pedal to see if it had gotten stuck somehow and it wasnt, yet still wouldn't unrev. So me in panic mode popped the hood yanked the battery cables off still stayed running,redlined, and after about 3 minutes of constant redline, BOOOOMMM, shot a cylinder and a rod out the side of the block. Now what in the hell could have caused this weird mishap to just rev for no reason and why it kept running after all the power was cut???

 

[ricktb]

when the engine turning the alternator making all the power to supply the fuel and plugs, youd have to cut the ignition and if the key didnt do it then pull the ignition coil.. seems strange to have two malfuctions at once with no warning... first why did it rev all the way, and second why couldnt you cut the ignition? sounds like sabotage but you never know.

did you check the throttle plate by hand? it would have to be wide open for full revs. requiring you to press the gas pedal, maybe the cable got stuck and you couldnt let off.. for the ignition you'd have to check your ignition solenoid. Maybe the cruise control mal functioned it has some control over the throttle?

 

[bryanwheat]

Being that you have a turbo timer the ignition key won't turn the engine off until you bypass the turbo timer. As for the engine revving the throttle cable would have to be stuck or the throttle plate jammed somehow.

 

[OutKastGSX]

Ahhh man sorry to hear about this. thats just terrible :'(

I am just taking a random guess. maybe the throttle got stuck open on the throttle body? Or ecu issue.

Good luck with it man.


^^beat me to it.

 

[rr06rs]

Ghosts??? Seriously, sounds like the turbo timer is what kept the ignition on. As for the rev, I don't know if it had anything to do with that. Pull your ic piping and see if something is holding the throttle open. I've seen it happen to a friend that didn't realize a rag had dropped in his ic piping.. sorry to hear that but, why didn't you pull the plug wires???

 

[Animalzach]

Now back when I had my 2nd gen the same issue had happened but mine turned off. What had happened was the battery hit the front strut bar and then the throttle cable became welded fast .(I had bought the car only a few weeks before hand and had not noticed that that could happen) but this happened while I was driving it. Check and see if you can move your throtal cable at every possible spot.

 

[Chrispy0530]

Wow dude, so sorry to hear about that man. I too am curious as to what happened.


Glad I have ECMlink launch control and no turbo timer..

 

[StarFawkes]

Wow what a terrible thing. Looks like you need a new bottom end, if not a whole engine. Depending on what you decide on doing I have a set of 6-bolt Ross pistons +.030" bore and rods I can donate to you. PM if interested.

 

[rr06rs]

Wow what a terrible thing. Looks like you need a new bottom end, if not a whole engine. Depending on what you decide on doing I have a set of 6-bolt Ross pistons +.030" bore and rods I can donate to you. PM if interested.

Hey...uh....uh.....damn........same thing just happened to me.....heh...uh...whataya know?.......uh.....think I could get those from ya???

Lol! Jk
That's very cool of you man!

 

[SPYDERGSTTUNER]

Glad I have ECMlink launch control and no turbo timer..

I too have ecmlink and my rev limit set to 7600.

Being that you have a turbo timer the ignition key won't turn the engine off until you bypass the turbo timer.

That's the second thing I did I wrote that on my first post.

Why I didn't pull the wires I don't know but I was in major panic mode and not thinking I guess. I took my piping off to check the plate and is totally closed. Now what I don't understand is with the timer off, the ignition off and yanking the battery cables off wouldn't that kill the power to the fuel pump??

 

[bryanwheat]

I too have ecmlink and my rev limit set to 7600.



That's the second thing I did I wrote that on my first post.

Why I didn't pull the wires I don't know but I was in major panic mode and not thinking I guess. I took my piping off to check the plate and is totally closed. Now what I don't understand is with the timer off, the ignition off and yanking the battery cables off wouldn't that kill the power to the fuel pump??

Taking the batter cable off will not kill the car. The alternator will still be making power so that won't effect anything. It sounds like the turbo timer had to be the culprit for why it is still running. There is really nothing else that could of kept it running. As for it revving so high, if the throttle is closed than i would be checking for a big vacuum leak.

 

[schroder]

Have you pulled the turbo timer to make sure a wire hasnt frayed and come in contact with another? A short in the system, even with the TT off, could have caused it to not die. Also, have you since checked the display on the turbo timer? If it malfunctioned, it could have APPEARED off, but in reality was still on but with a busted display. Just thinking out of the box a bit for your odd problem

 

[vingasoline]

Check your TPS. If its stuck at 5v that would do it. Be interesting to see a log on that mishap. Sorry for your loss. Turbo timers suck for that reason. A remote starter with built in turbo timer is the shit, and can be shut off with the brake pedal.

 

[Arthris]

its not the turbo timer. His car revved to 9K when its set for 7600. Only way for that to happen is a ecu malfunction. Either the ecu itself or the link chip. Probly more so the ECU itself. As with power cut but a possible short in the ECU memory trace to lets say the MPI trace that would keep the ECU, FP, Coils and what not powered up. Open up the ECU and have a look.

I know the panic you had. My 1G caught fire after my brand new 20G shaft snapped. I was in freak mode and did everything that I could. Luckly for me I had a NOS bottle just chillin and used that to put out the fire. But that was a fluke and everything happened so fast.

You need to dig around and you will find the issue that caused this. Sucks but maybe in the long run you may come out ahead somehow! GL with the new build!

 

[boost97gst]

I am so sorry to hear that. It is tough to think when the engine pegs especially when the key wont turn it off!!! First mod i did to my gst when i got it was remove that POS turbo timer. Plug wires would have done it immediately. Just grab and start tearing em out. but hindsight is always.. yadayadayada you already know.
3 whole minutes at 9k rpm?? Well, it WAS a tough engine just to do that. Most cars i dont think could take a pounding like that for even 60 seconds. Damn..... man i feel bad for ya


whats weird here is that the car even started with such a massive vac leak/throttle plate atleast half way open. I cant figure that out. I know a brake booster line off on my car caused it to rev to about 5500 and the throttle plate open maybe 10%, if that, caused an idle of almost 5k. Doesnt take alot but 9k rpm takes some air. FU(K turbo timers
Also, a good anti theft, anti fire idea is to have a quick kill switch for the fuel pump under the seat or dash.

Side note, since putting over 11k into my car, there is always a small kiddie extinguisher right behind my seat at all times. Better safe than sorry

 

[Nekid]

Hindsight is shitty in this case, but a few things to kill it if the ignition fails:

Pull the wires from the coil or the coil harness plug (kill spark) (which you mentioned)
Pull the injector clips (kill fuel)

With the throttle plate closed, the FIAV and ISC if pegged should not allow enough airflow into the engine to rev it to 9k.

Hope you are able to get things figured out.

 

[SPYDERGSTTUNER]

I just looked at the timer and it still says off now, I turned it back on and went right back to is usual setting if 5 min. I turned the ignition off and the timer started to run so I'm assuming is still working properly and wasn't the culprit. I'm still gonna check and trace all the wiring, I'm very careful about stuff like this so I always solder and heat shrink everything to make sure shorts or any wiring mishaps are kept to a minimum. Now the ecu I am going to look into, I bought this unit from a friend that had it for about 2 yrs but never installed it, so it was new when I installed it and I checked it prior to putting it in. I just can't seem to understand why it would rev past its rev limiter the way it did and stay there pegged completely specially if the throttle plate moves freely. I'm gonna check my tps for voltage and see if that had anything to do with it but I'm almost certain is ecu related being that it ignored its rev limiter somehow.

 

[spyderdrifter]

Holy crap dude, I don't know what to say other than I can't even imagine your loss. I can't offer more than what's already been said, but if there are parts you're needing, post it. I got some random parts here and there. So I'd donate too if I had something you needed.

 

[Mischif]

I know the panic you had. My 1G caught fire after my brand new 20G shaft snapped. I was in freak mode and did everything that I could. Luckly for me I had a NOS bottle just chillin and used that to put out the fire. But that was a fluke and everything happened so fast.

This made me laugh.

 

[SPYDERGSTTUNER]

3 whole minutes at 9k rpm?? Well, it WAS a tough engine just to do that. Most cars i dont think could take a pounding like that for even 60 seconds.

That still amazes me now too I was surprised it lasted as long as it did, and that's why I freaked out even more running around like a chicken with its head cut off trying to do anything that came to my head and knowing I was running outta time very fast. My mom who is visiting me was inside came outside and was like why did u rev your motor for so long isn't that bad for it?? I was like umm yea it is but I didn't do it intentionally, do you not see that I just smoked out my neighborhood . She's was like oh I was wondering what that loud boom was, so now what?? Did it blow up?? I was just like yes mom she blew up and I'm about to burst into tears so go away .

 

[Arthris]

This made me laugh.

Lol i know but it wasnt for it my 1g would have been a pile of ash

 

[SPYDERGSTTUNER]

Holy crap dude, I don't know what to say other than I can't even imagine your loss. I can't offer more than what's already been said, but if there are parts you're needing, post it. I got some random parts here and there. So I'd donate too if I had something you needed.

Thank you and everyone else here in tuners for the kind words all the help and advice offered. I'm very glad I'm part of this great community I seriously wouldn't know what to do without you guys, thanks again.

 

[WES_393]

Sorry to hear. I have a decent condition 100mm crank I'd be willing to donate. Hope the damage isn't that bad though...

 

[JosephMiranda]

You sure cruise control didnt engage woth the car out of gear? Thats all i can think of that would cause this that hasnt been mentioned

 

[SPYDERGSTTUNER]

You sure cruise control didnt engage woth the car out of gear?

Good point, I didn't even think that was possible I've never been able to engage cruise control under 45mph let alone sitting there in neutral but I will definitely look into it.

Sorry to hear. I have a decent condition 100mm crank I'd be willing to donate.

Anything will help thank you. Your are within driving distance and I go to Denver often so I'll definitely try to stay in touch with you.

As far as damage goes I'll try to post some pics tomorrow, there was 3/4 of a rod under the car and parts of the piston around it as well as chunks from the block