Any completely STOCK engines bend/break a rod yet?
- Thread starter robin2660
- Start date
mazdaspeedster3
Member
- :
- Mazdaspeed3. 2008
It happens!
if you like redlining on your way to work, changing the oil every 10,000 miles and going full boost before warm up sure, it can happen.
mazdaspeedster3
Member
- :
- Mazdaspeed3. 2008
See, it happens.(moon)
lol, yes you're correct. (lol2)
because a hand full of people out of a few dozen members in a single forum with production numbers spanning at least 50K+ MZR's is a definitive result..
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Super Unique
Member
- :
- 2008.5 Mazdaspeed 3 Black Mica
Mine Hasn't
You have a better way of surveying?
Mazda already does this for you, it's called a TSB.
But there isn't one for this question.
Super Unique
Member
- :
- 2008.5 Mazdaspeed 3 Black Mica
There have been documented cases of blown engines on all the cars that use the DISI 2.3 turbo.
Mazdaspeed 3
Mazdaspeed 6
Mazda CX-7
All of them have had a few blown engines, But so have all makes and models of cars. The bottom line is if you take proper care of your car, and do not abuse it extensively, it will likely run for a very long time.
Mazdaspeed 3
Mazdaspeed 6
Mazda CX-7
All of them have had a few blown engines, But so have all makes and models of cars. The bottom line is if you take proper care of your car, and do not abuse it extensively, it will likely run for a very long time.
So that tells you...
It's not a smart-ass comment it's the obvious and logical one. Engines blow up, turbocharged engines blow up more often. If you found 12 people here to say 'yes' you're getting a representation of .024% of all MRZ's manufactured. Based on a number of 50K made, which is just a number I pulled out of my ass since I've no idea what CX-7 and MS3/MS6 production numbers are. Thus boiling down to my point: This thread is useless.
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Then quit shitting on it and go start a useful one of your own.
I dont think this thread is useless....The OP wanted some of his concerns address...I Do agree that a few cases among a thousand doesnt justify a concern on the capability of this engine...But you do read alot about how many engines pop..and It is a good question to ask if how many of those are truly stock. This is a forum..people will ask questions. Lets keep it friendly in here fellas.
Calm down guys. Robin he is right . . . Im not here to tell you what you can or can't make a thread about. But stock turbocharged engines of any brand blow / bend rods. Same with N/A engines, although less common.
Im not sure what someone telling you their stock engine blew would accomplish. If they drove it like an idiot I doubt they would come on here to brag about it.
But I did read one thread of a guy who blew his stock engine. The thread was deleted for obvious reasons. . . He was speeding. . . He downshifted going like 150 mph and boom . . . No suprise there.
Also read another thread of a guy with low miles who's engine blew. According to his thread he didn't beat on it. And the engine blew while DD'ing. Usually what happens is people bend their rods and then blow their engines later while driving normally.
Hope that helps.
Im not sure what someone telling you their stock engine blew would accomplish. If they drove it like an idiot I doubt they would come on here to brag about it.
But I did read one thread of a guy who blew his stock engine. The thread was deleted for obvious reasons. . . He was speeding. . . He downshifted going like 150 mph and boom . . . No suprise there.
Also read another thread of a guy with low miles who's engine blew. According to his thread he didn't beat on it. And the engine blew while DD'ing. Usually what happens is people bend their rods and then blow their engines later while driving normally.
Hope that helps.
Sephiroth, what OP is probably trying to find out is a real phenemenon that is being experienced and well documented on highly modded 2.3 DISI engines, including photos of bent connecting rods on this engine. It seems to be most frequently on cylinder number 3 and there is a LOT of discussion about this.
The theory is that there is a design flaw in the small end of the connecting rod. I'm not allowed to cross-post to another forum, or I'd show that there are several threads on this by some very dedicated and serious professional and semi-professional engine builders with a lot of experience in high boost small displacement engines.
But, the problem seems to be on modded engines, especially when tuned in a manner that happens to significantly increase torque in the low rpm band where the turbo is just coming up on boost.
I don't pretend to know if these pretty experienced guys are onto anything, but many of us with mods are taking this seriously until we know more and are trying to stay out of boost between 2,500 rpm and 3,000 rpm by downshifting to a lower gear before going WOT so that rpm is at least a little above 3k.
The theory is that there is a design flaw in the small end of the connecting rod. I'm not allowed to cross-post to another forum, or I'd show that there are several threads on this by some very dedicated and serious professional and semi-professional engine builders with a lot of experience in high boost small displacement engines.
But, the problem seems to be on modded engines, especially when tuned in a manner that happens to significantly increase torque in the low rpm band where the turbo is just coming up on boost.
I don't pretend to know if these pretty experienced guys are onto anything, but many of us with mods are taking this seriously until we know more and are trying to stay out of boost between 2,500 rpm and 3,000 rpm by downshifting to a lower gear before going WOT so that rpm is at least a little above 3k.
