blew my si

NoKz

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I recently blew my si in very cold weather.
Well did it at least buy you dinner first?

what can I do to prevent this from happening again? 10k miles and im running ktuner with tsp stage 1.
I mean, details help. Probably start there?

I don’t know much about cars but i have some knowledge. I also had 1 miss shift a week before it blew.
Well, that may have contributed, but who knows? Some key points;
  • Let the engine warm up completely before getting on it.
  • Don't 2-Step on a cold motor.
  • Learn more about your vehicle and don't be a ricer.
It looks like you got on it while the engine was still cold. It's very possible that with the 2 step you floated or bent a valve which could have dropped metal down into the cylinder with low compression. That would damage the piston/cylinder wall and give you oil blow by.
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Sorry OP, I blew my motor 2 weeks ago too. 18k miles on the SI motor, drove to the gas station. filled up, approached the on-ramp (rush hour traffic) 2nd gear to 3rd gear (low/normal rpms) at 20-25mph and slung a rod through the block. Found a used 11K miles SI Motor last week, my mechanic will update me once he drops the motor etc.

Oil changed every 5k
Drop-in Dry air filter + hardrace RMM
TSP 1
Sorry to here this buddy my condolences
 

gtman

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Sorry OP, I blew my motor 2 weeks ago too. 18k miles on the SI motor, drove to the gas station. filled up, approached the on-ramp (rush hour traffic) 2nd gear to 3rd gear (low/normal rpms) at 20-25mph and slung a rod through the block. Found a used 11K miles SI Motor last week, my mechanic will update me once he drops the motor etc.

Oil changed every 5k
93 Octane gas with every fill-up
Drop-in Dry air filter + Hardrace RMM
TSP 1 .49-.59 k.control
Mostly highway miles
I have to ask. We're starting to see a few of these catastrophic things with the TSP Stage 1 tune. From what you say you were just driving in an ordinary way at low speed. Should Si owners be concerned about this tune?
 

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I have to ask. We're starting to see a few of these catastrophic things with the TSP Stage 1 tune. From what you say you were just driving in an ordinary way at low speed. Should Si owners be concerned about this tune?
Yes, I have a dash cam. which shows the time frame it happened. At the moment, we don't know what is going on. I am not here to point fingers at anyone. More of sharing my current situation with my car.
 

dc2turbo

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What people don't get that when you blow a motor from a broken rod, bad bearings, blown turbo or whatever. It's not what you did when it blew that did it. It was all the things you did that lead up to it blowing. If a person has a broke rod, It probably was knocking for a little bit before letting go.
 


HotPaperPlate

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What people don't get that when you blow a motor from a broke rod or bad bearings. It's not what you did when it blew that did it. It was all the things you did that lead up to it blowing. If a person has a broke rod, It probably was knocking for a little bit before letting go.
Correct, if knock was present I would have caught it. This is not my first rodeo..
 

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Correct, if knock was present I would have caught it. This is not my first rodeo..
Keep us informed to your findings Im curious. No knock control movement previously that you noticed? Sounds like you were even monitoring/logging things as you should....
 

dc2turbo

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Correct, if knock was present I would have caught it. This is not my first rodeo..
Didn't you modify your exhaust?
Rod knock isn't always loud and can only happen at certain rpm. Knock control should pick up the extra vibration from it
 

HotPaperPlate

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Keep us informed to your findings Im curious. No knock control movement previously that you noticed? Sounds like you were even monitoring/logging things as you should....
I will, hopefully we find something. Yes, I have a v2 and monitor most if not all of the important parameters. There have been a few times that the k.control was up in the .60-.70s but nothing crazy.

Didn't you modify your exhaust?
Rod knock isn't always loud and can only happen at certain rpm. Knock control should pick up the extra vibration from it
Yes, I took out the mid resonator and nothing was changed in the k.control via the V2

Sidenote: I hardly do short drives, but when the block blew... there was a strong fuel/gas smell.

Again, Not pointing fingers to anyone.
 
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joshhjackson2112

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I will, hopefully we find something. Yes, I have a v2 and monitor most if not all of the important parameters. There have been a few times that the k.control was up in the .60-.70s but nothing crazy.



Yes, I took out the mid resonator and nothing was changed in the k.control via the V2

Sidenote: I hardly do short drives, but when the block blew... there was a strong fuel/gas smell.

Again, Not pointing fingers to anyone.
This all begs the question. Would you install tsp stage 1 tune again after your experiences? Can you honestly say that none of your driving habbits could have contributed to your car commiting suicide? There are no judgments here. I'm running this tune also and I tend to get on it when I can. I don't do any tracking though.
 


HotPaperPlate

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This all begs the question. Would you install tsp stage 1 tune again after your experiences? Can you honestly say that none of your driving habbits could have contributed to your car commiting suicide? There are no judgments here. I'm running this tune also and I tend to get on it when I can. I don't do any tracking though.
I was thinking of TSP 2, flex fuel + catted DP + Spec 2+ Steel flywheel in the near future.. but I would like to have a local tuner do fine adjustments. Yes, just like anyone would... We like to have fun when permitted. I get on it as well, never launch or bounce off the rev limiter.
 

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I have to ask. We're starting to see a few of these catastrophic things with the TSP Stage 1 tune. From what you say you were just driving in an ordinary way at low speed. Should Si owners be concerned about this tune?
lmao, pretty much anytime someone posts about a tune or a blown motor you wonder if people should be concerned and I cant help but laugh. Like there are so many other things that are going to be the cause before a base map or TSP tune is the outright cause. We have no idea how these people beat on the car or how much 2 stepping or anti lagging they do. Of course they dont want to admit it either. They always say, "I babied the car" until a friend rats them out or they finally admit what they did after they get it fixed.
I was thinking of TSP 2, flex fuel + catted DP + Spec 2+ Steel flywheel in the near future.. but I would like to have a local tuner do fine adjustments. Yes, just like anyone would... We like to have fun when permitted. I get on it as well, never launch or bounce off the rev limiter.
Your local tuner wont be able to fine tune a TSP tune, its locked down except for "disables"
 

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lmao, pretty much anytime someone posts about a tune or a blown motor you wonder if people should be concerned and I cant help but laugh. Like there are so many other things that are going to be the cause before a base map or TSP tune is the outright cause.
I'll be the first to admit, I worry when I see these posts. That doesn't mean I don't understand that often it wasn't the tune, it was abuse or something else. Still though, I'm not going to blindly assume it's never the tune. Like I say, there is risk in tuning, to some extent no matter how small. But I have faith that KTuner and Hondata erred on the side of caution with their base tunes. In this case, I simply posed the question if anyone was concerned who had the TSP tune. I'm sure it's a phenomenol tune, I simply asked.

I don't really get the "lmao" comment. Your perogative to feel that way though.
 

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I'll be the first to admit, I worry when I see these posts. That doesn't mean I don't understand that often it wasn't the tune, it was abuse or something else. Still though, I'm not going to blindly assume it's never the tune. Like I say, there is risk in tuning, to some extent no matter how small. But I have faith that KTuner and Hondata erred on the side of caution with their base tunes. In this case, I simply posed the question if anyone was concerned who had the TSP tune. I'm sure it's a phenomenol tune, I simply asked.

I don't really get the "lmao" comment. Your perogative to feel that way though.
you're a worry wart is why i laughed is all. No hard feelings buddy :)
 

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No never made a post but engine was fine think I hit the clutch fast enough.
For every engine that dies from an overrev, I bet there's a hundred or more that shrug it off and keep going w/o any issue. The RSX forums had some pretty epic overrev given their already-high redlines. Most were always fine. Over 10,000 RPM was pretty standard... but reflashes brought the rev limiter to 8600 so... yeah...
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