Blown Motors

[2.0t03speed]

I don't understand this logic at all. Because Mazda made a mistake by saying flywheels are interchangeable, that somehow supports the argument that they are outright LYING about having forged crank and rods?

From what I've seen, the only evidence presented that the rods aren't forged are because they "look like cast rods", coming from just one person (which runs contrary to every piece of documentation I've seen about this motor). But then again, factory forged rods look like cast rods all the time. Factory forged rods don't necessarily look like the nice smoothly polished aftermarket rods you see on sale all the time.

comming from ken who builds these motors i can believe it. he has no reason to lie about it but like i said you can go on believing what you want.

 

[jcgemt2003]

Believe it or not, you can pop even the most sturdy built motors. Want to know how? bad tuning. The ECU's in our cars are notoriously finnicky and hard to tune. Add to that the fact that a lot of the speed 6's that blew had aftermarket turbos running increased boost, and it's not hard to see why some of them blew. Also, as far as I know, I haven't seen any ms3's that have spontaneously thrown a rod yet.

Thats because there are maybe all but one speed3 with a bigger turbo. Dude the freakn rods arent forged. Ive seen them and the pistons. You a little new here and you dont know a whole lot about the car. Take your motor out and pull the fukn rods. Then you can post about how mazda lied. Ive seen this motor apart more times than you can imagine. Ive seen the stock pistons and rods and have compared them to others and these rods and pistons in this car aint s***. SO UNTIL YOU PULL YOURS OUT AND PROVIDE PROOF THAT YOUR'S ARE DIFFERENT FORM EVERYONE ELSES THAN SHHHHH.....(wedge)

 

[2.0t03speed]

jeasus thank you jcg. i was beginning to believe that i was the only person that knew the truth haha.

 

[PeterSellers]

Thats because there are maybe all but one speed3 with a bigger turbo. Dude the freakn rods arent forged. Ive seen them and the pistons. You a little new here and you dont know a whole lot about the car. Take your motor out and pull the fukn rods. Then you can post about how mazda lied. Ive seen this motor apart more times than you can imagine. Ive seen the stock pistons and rods and have compared them to others and these rods and pistons in this car aint s***. SO UNTIL YOU PULL YOURS OUT AND PROVIDE PROOF THAT YOUR'S ARE DIFFERENT FORM EVERYONE ELSES THAN SHHHHH.....(wedge)

*I* don't have to prove anything, you guys are the ones making this claim, which is contrary to every piece of documentation on this motor. The onus of proof is on YOU. Do you know what factory forged rods are supposed to look like? I've seen pictures of our rods, and they look just like other FACTORY (not aftermarket) forged rods that I've seen.

Here is a pic of some forged factory rods from an AMC motor: http://www.jpmagazine.com/techarticles/engine/154_0412_amc_v_8_engine/photo_03.html Notice that they don't look anything like the smooth polished aftermarket rods you see all the time, which is exactly the basis you are using to determine that they aren't forged.

By the way, you have no idea about how much I may or may not know about this car, so stop claiming otherwise.

 

[Captain KRM P5]

*I* don't have to prove anything, you guys are the ones making this claim, which is contrary to every piece of documentation on this motor. The onus of proof is on YOU. Do you know what factory forged rods are supposed to look like?

yes, we do. the mazdaspeed3 is not the first car to have them, nor is it the first factory or aftermarket rod we have seen nor is it the first car we have worked on. the only 'documentation' is a press release on mazda's website or marketing materials and then corroborated by mouthpiece industry magazines. we have already shown that mazda has had a propensity for 'errors' when it comes to things like that. no engineering documents have ever been provided by anyone.

i personally have never said the car does not have a forged crank. it definetely does.

i've been through this enough. i have sent the rods out for inspection to several machine shops and been told they are not forged. to be totally frank, i don't give a rat's ass if people believe or don't believe it. i don't need to use it as a tactic to sell a forged motor when the stock ones blow up so well on thier own. people are entitled to believe whatever they want, i really could care less. i've taken these engines apart, i've had the parts inspected and tested, i've physically tested parts that other seemingly reputable sources claim will work on these engines and clearly do not. i have zero personal or professional need to do anything outside of that to prove my competency to any fan boy on an internet forum, and that is where - love me or hate me - the issue dies with me.

enjoy your pissing match, ladies and gentlemen.

 

[PeterSellers]

yes, we do. the mazdaspeed3 is not the first car to have them, nor is it the first factory or aftermarket rod we have seen nor is it the first car we have worked on. the only 'documentation' is a press release on mazda's website or marketing materials and then corroborated by mouthpiece industry magazines. we have already shown that mazda has had a propensity for 'errors' when it comes to things like that. no engineering documents have ever been provided by anyone.

i personally have never said the car does not have a forged crank. it definetely does.

i've been through this enough. i have sent the rods out for inspection to several machine shops and been told they are not forged. to be totally frank, i don't give a rat's ass if people believe or don't believe it. i don't need to use it as a tactic to sell a forged motor when the stock ones blow up so well on thier own. people are entitled to believe whatever they want, i really could care less. i've taken these engines apart, i've had the parts inspected and tested, i've physically tested parts that other seemingly reputable sources claim will work on these engines and clearly do not. i have zero personal or professional need to do anything outside of that to prove my competency to any fan boy on an internet forum, and that is where - love me or hate me - the issue dies with me.

enjoy your pissing match, ladies and gentlemen.

Let's get something straight. I never accused anyone of intentionally lying about the rod issue (as if you are using it to sell more built motors). Don't be so defensive. The only thing that has been circulating around has been a "he said she said" type of high-schoolish thing that just reeks of being a false rumor. You can't blame me for being skeptical of that, but if that makes me a "fan boy" then so be it (headshake.

If you have a spare stock rod lying around, would you mind taking a large picture of it and posting it? Any evidence to substantiate what is now just a rumor would be appreciated, since I'm still very skeptical.

 

[Captain KRM P5]

there has never been "countless forms of documentation", just random people and PR statements. relying blindly on that when mazda has stated (as i linked above) wrong information before, qualifies as being a fan boy in my opinion. this is not singling you out either, you just had the misfortune of being the post i clicked 'quote' on.

i have posted pics on this forum, i will try and find the link. when i do, i will edit this post with it. the rod has casting marks and casting imprints on it as well. it came from a new, uninstalled, speed6 specific shortblock ordered straight from mazda. i can produce part numbers and receipts to this effect as well.

edit :: found it; http://www.mazdas247.com/forum/showpost.php?p=3382264&postcount=92

 

[2.0t03speed]

lol wow thats not that much bigger then the fs-de internals haha

 

[03.5MSP]

lol wow thats not that much bigger then the fs-de internals haha

He he, yeah now I don't feel so bad anymore.

 

[PeterSellers]

there has never been "countless forms of documentation", just random people and PR statements. relying blindly on that when mazda has stated (as i linked above) wrong information before, qualifies as being a fan boy in my opinion.

Great, now you know exactly what I'm talking about when I hear people regurgitating what you've said about the rods not being forged, without doing any due diligence on their part. I wouldn't classify them as being PG "fan boys" though, as they would be according to your definition. We just disagree on that point.

Thanks for posting the picture. I have seen other factory forged rods that do look like that, so by the pic alone it doesn't say much to me. They are quite thin though, which is troublesome. I also find it hard to believe that Mazda would put such a thin rod that was NOT also forged into a motor running more than a full bar of boost.

 

[laloosh]

i dunno, i also find it wierd how people are making over 350 wtq and not snapping these things like tooth pics but hey whatever(lick)

 

[Raynman]

http://www.cardomain.com/ride/2230297

Are those casting marks running up and down the length of the rod?

 

[MS6mike]

if the engine is forged from factory how come my motor blew?

 

[PeterSellers]

if the engine is forged from factory how come my motor blew?

Is that a joke? You said you spiked 25 psi, and were running a big turbo. I'm guessing it wasn't tuned properly either, since we don't yet have a good tuning solution.

 

[JDM Sam]

The people who knew, all predicted this type of thread would come. When I saw the MZR DISI cut out at a Mazda event, I already knew.

 

[MS6mike]

Is that a joke? You said you spiked 25 psi, and were running a big turbo. I'm guessing it wasn't tuned properly either, since we don't yet have a good tuning solution.

yes and even with the spike it was not over 400whp!! evos go 600WHP no problem!(inout)

 

[laloosh]

evos have real tunning solutions, something that we have yet to see