update on blown motor

[girth]

Hmm, I did find the old thread about this. Long story short, I don't know anything and won't say anything further -- just keep us updated on the status Matty because it is interesting.

Here's the original thread if anyone's interested....better hope Mazda's lawyers don't read it.
http://www.mazdamp3.com/vbb225/show...page=15&highlight=blew my engine&pagenumber=5

 

[Turbo Matty P]

I did blow the motor on the dyno. However it wasn't a boost spike or damage caused by not having a boost gauge prior to this. The car drove normally until getting on the dyno. On the dyno the top hose on the radiator blew off and spewed some coolant on the motor. We cleaned it up, topped it back off and drove it for a while to make sure there were no problems. 4 pulls later the coolant just gets sucked in there and pop. Anyone else on these boards spike 14psi before? If so, whats the condition of your headgasket? I bet it's intact. My situation boils down to mazda not having proof that I've upped the boost on the motor (if I had!). They told me, and I quote, "We know what you did and you know what you did." I said, "Well why don't you tell me what I did?" they replied, " I don't have to tell you a damn thing." They have no proof of anything other than my exhaust and intake. Truth be told, the splice in the vaccuum line was used for a temporary boost gauge. So mazda can officially eat me, on the record.

As far as taking responsibility for "it" goes, I'm spending my life savings right now building and performing a custom motor swap for giggles!! It would be nothing for me to petition the dealership for the new block. I could care less about a stock MSP motor. I'm going to use the chasis (best FWD chasis made) for a motor that will actually push the car to it's limits. I'm just pissed they've got nothing to harrass me about and they're trying it anyway. Side note: when I get mazda to give me a stock replacement motor, does anyone want it? I figure it would make for an awesome P5 swap if you have a DFI computer.

 

[Heathen23]

I wish you luck! Let us know how it turns out. Oh, and thanks for the updates.

 

[1sty]

I GOT DIBS ON THE ENGINE!!

 

[girth]

... So mazda can officially eat me, on the record...

(lol)
I agree -- and unless Mazda has some VERY easy way for them to prove you wrong, there's no way they're going to waste their time on a cheap engine like ours. It's much cheaper for them to just give in.

Just curious, what do you think about what BoostIsGood said in that other thread -- about Mazda being able to plug into the ECU and tell exactly what you did? That sounds reasonable to me.

 

[Turbo Matty P]

the ECU isn't a data storage unit to my knowledge. That requires some sort of special hardware like a hard drive if its anything like GM's. The only thing the ECU will tell mazda is what my CEL was when the motor blew...."Random Multiple Misfires" I wan't Mazda to try to blame THAT on me!

 

[low_psi]

well, lets just say that Mazda will find a way to link the problem to you upping the boost. you will lose. they also read this board

 

[Midnight22]

damn, that 2.3L motor swap has def caught my attention, that sounds sweet, im gonna keep tabs on it

 

[ebsalem]

the ECU isn't a data storage unit to my knowledge. That requires some sort of special hardware like a hard drive if its anything like GM's. The only thing the ECU will tell mazda is what my CEL was when the motor blew...."Random Multiple Misfires" I wan't Mazda to try to blame THAT on me!

ain't no need for a hard drive to store data. Ever used a digital camera? Data storage is easily done with a chip.

They may not know your boost at failure, but you're busted. Certainly the ECU stores a coolant loss and most probably stores changes in intake pressure vs. fuel use.

You bought a car, modded it and now want somebody else to pay for your engineering failures. Grow up!

(For the record, since we all know the Leagal types read this list, I've got a KN filter.)

e

 

[Striker187]

well your situation sucks...but the motor swap sounds tite. but small comment/question. doesn't a t25 seem a little small for a 2.3L engine? it's already small on a the stock 2L. did you consider going with maybe a t28 or t3/t4 or the gt25r?

 

[unwrittenLaw]

Some people act like judge and jury. We don't need the voice of morality in here..let him and Mazda figure it out. I've spiked to 12-14 a lot and no blown head gaskets. I'm not saying whos right and whos wrong, I'm just saying we dont need a bunch of narcs in here..

 

[YuYuRena]

T25 isn't too small on the 2L. Bigger turbo is more important for larger flow rate and pressure ratio.

And I got some doubts about that motor swap. not trying to rain on your parade, but I'm an engineer so I always look at both side. The 2.3L sounds cool upping the displacement = more power & tq. Here's comes the but, how about the weight issue and most importantly the weight distribution plus the wheel base issue. This is more a concern on the effect of handling. I think with the car being more front heavy, the steering might not be so neutral anymore and the car would plow like a fat kid.

And how have you lowered compression? thicker gasket or piston? Ever consider combustion chamber design?

I like what you doing, and just curious 1. how did u get a 6i engine? And 2. what were you planning on that RWD conversion?

 

[boostisgood]

Well, I posted my comments on this situation, but retracted them.

Matty, shame on you. That is all Im going to say.

 

[Turbo Matty P]

I love the way you people are turning on me like I'm a thief! I'm the enemy here! I could care less if Mazda partrols these boards. Nothing I say on here will hold up in court. ON THE RECORD: I lie a lot. I also assassignated John F. Kennedy. Bea Arthur is my love slave, shes naked in my kitchen right now! Use that in court. They have to PROVE without a doubt that something I did caused engine failure. They cannot. I'm not the bad guy here. I'm using a technicality just like anyone of you would in my situation.

As far as the 2.3 6i engine goes: It was pulled from a new car due to a faulty vvt oil clutch. It's the part on the camshaft that actually engages and applies the VVT. It was very easy to replace, but the original owner did not want a "damaged" motor in her car so Mazda gave here a new motor for free. I bought this motor off them for $500. The motor is almost exactly the same size as the 2.0 motor. Displacement is not based on the outward appearance of the size of the motor. It's the volume of the combustion chamber. There is no extra weight switching to the 2.3 motor. That's the reason I've chosen to use that motor as opposed to my 300+ hp Yamaha V6. I wanted something to make good power but not drag the front end. So taking a more advanced 4cyl., securing it's internals and boosting the hell out of it was the way to go. You sure can't stroke a 2.0L MSP motor for $500! This is still a work in progress so I'm not sure what the outcome will be, but if it's good I'd like to submit it to Sport Compact Car and let them review it like they do the Vishnu STi and stuff. I think it would be nice to see an MSP 0-60 in the 5's!

But hey, I'm just the bad guy here.

 

[Ryan]

^lol...

i was running 15psi last night no problems, but i didn't run it for longer than you would have dyno'd ur car. I can garentee it was something faulty from the start, but if i were you, the first time the coolant leaked i woulda said wtf, removed any mod's i had taken it to the dealer and told them it happened on the road, but hell now, if you go in court and win, were all set, maybe mazda will turn around and start helping, kinda like honda.
I have a friend that did some mods to his honda took it to the dealer and the techs were like sweet and giving him advice on what else would improve the cars performance. I just wish mazda had more of a possitive outlook. I mean dont get me wrong, if you replace a part, then that part should be voided from the warrenty. and they should not ever void the complete warranty. Unless you completely and physically replace every part of the engine. A few mazda salemen have been at the last few meets i was at and saw the things on my car. The first one said you know u've just about voided all parts of your car. I laughed at him and said prove that the parts i added would cause any problem. he couldn't. The next meet another mazda guy showed up, he supposidly worked on the cars. looked at my car, was checking it out. He's like yanno there gonna give u s*** if u go in for warranty work. I said i know. He goes but, just to let u know they have to physically PROVE that whatever u did caused the problem. If they cant, they have to fix it. So i really dunno what to believe.

but personally i really dont give a s*** if i have a warrenty or not. If i wanna change something on my car im gonna change it... im not gonna sit around and say oh,, i gonna wait 2 years till warranty is up then mod it.. screw that. in two years im probably gonna want a different car, and if i dont want a different car, i'll probably still buy a different car, and leave this one sitting in the garage, and use the new one as a daily driver.

 

[YuYuRena]

So the same engine block with longer stroke? and 500 bucks nice fine.

 

[Turbo Matty P]

no different blocks, but the size is almost identical. Also, it's all aluminum so its a bit lighter, except for all the additional computer wiring.

 

[Fakhelek]

Here's another possible problem with the swap. How will the VVT respond to boost? I personally don't know but I wouldn't imagine that you can just turbo it as is. I wonder, what are you going to use for an ECU? Sounds like you've got a challenge ahead of you. Good luck and keep us posted.

 

[Turbo Matty P]

the stock MSP motor has vvt. Turbo does nothing to affect it as far as I know. vvt only switches cam profiles in the upper rpm range for performance.

 

[YuYuRena]

ahhh got it, thanx sounds good, how about center of gravity? j/k just keep me posted on how u doing with that baby.