blowing your motor questions

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ptruong31

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hello everyone, i might purchase a used mazdaspeed3 tomorrow but my dad doesnt want me to get it because his friends mentioned the blown motor problems. its a 2007 and mileage are incredibly low, about 18k. well my question is, does your motor only blow if you have a bunch of mods? i read on some other thread that it only happens when you modd your car over 300 whp. what if the car is stock except for a mazdaspeed cai? also, when i add mods in the future will a rear motor mount reallly help keep my motor from blowing? hope i dont get flamed for not using search button but i gotta get to work soon lol sorry guys but any answers will be appreciated. thanks.
 
well unless your dads friend has one i would tell him not to give advice based on something he "heard". also the search function on this site is pretty good you will find many topics about this but a quick summary.

blowing the motor seems to be mostly the highly modded engines pushing big numbers that the stock internals dont handle too well. the issue with this car is the pcv system and blowing your turbo seals causing smoking. mazda is working on a fix for this. there quite a few ms3's on this site that have pretty high miles on them for a car thats only been out a couple years.

rear motor mount is very helpful and was my first mod, it wont keep the engine from blowing but it will keep the 07 oem mount from breaking and your motor falling out (this issue was fixed for 08-09) but it really improves the way the car drives and i'd replace it regardless.
 
From what I understand the MS3 all pop their motors due to ton of mods and no tune... Even the MSP is fine if you dont do crazy on mods and they are known for weak motors.
 
if you're satisfied with lil mods, go ahead. if not, find a car that has a lot more potential.
 
Yep depends on what you want to do with the car. You can easily get a "safe" 300 whp which is pretty fast especially in a speed 3. If your staying stock or relatively stock than a blown motor is nothing to be worried about. As others have mentioned if you want a track beast then look at different cars.
 
In a market of tens of thousands of cars, some WILL be faulty. That goes for all manufacturers. The internet tends to heighten fear and paranoia since those with trouble post their pain widely. This car is very solid. No major recalls, multiple years at the top of sales charts. Crap doesn't take long to smell and this car has a good rep.
 
Same with the MSP but the majority of the people poping the engines are people with tons of mods for the MSP, MS3, and MS6



+1

From what I understand the MS3 all pop their motors due to ton of mods and no tune... Even the MSP is fine if you dont do crazy on mods and they are known for weak motors.

is it your mission to bring up the msp in every ms3 thread you post in? just seems like it from where i am sitting. you should trade your msp and get one. these cars are so much more fun to drive than the msp! you will love it!



Trolling FTL.

how is this trolling if its true?





to the OP
its a fun car stock or modded!
 
is it your mission to bring up the msp in every ms3 thread you post in? just seems like it from where i am sitting. you should trade your msp and get one. these cars are so much more fun to drive than the msp! you will love it!

Yep, I'm just comparing it to how its prone to blowing like the ms3. I would get one if you made the payments for me. I can't aford one on a 3-4 year loan comfortably, so I wont get one. Sure I can get a much nicer car like some other people who thinks its good to get the car they want on a 7 year loan... either way its not for me.
 
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Also if you go WOT at every straight road then your motor will not hold up either. Just remember that if you treat your car good then it will do the same back.
 
Also if you go WOT at every straight road then your motor will not hold up either. Just remember that if you treat your car good then it will do the same back.

(first)Good point, The people with a ton of mods are more then likely beat on their car more often then those who dont have so many.
 
usually folks who mod their cars and run them hard post on forums - so if you are depending on forums for info you are prob. more likely to see blown up engine stories
 
its true

(first)Good point, The people with a ton of mods are more then likely beat on their car more often then those who dont have so many.
I drive my car hard often. That is what i bought it for. i store it in winter and have over 43 thousand miles on it and ready for my third set of tires. I do not have a ton of mods. I am trying to lighten the thing up alittle!
 
Trolling FTL.

yea what the **** is that supposed to mean?

it is the truth. motors pop stock, i/cbe, i/tbe, i/tbe/mani/meth/bsd/etc etc. tuned, untuned, there is no common denominator. the best thing to do is leave it stock and hope the dealer covers your ass if/when it pops. otherwise youre rolling the dice.

do the forums blow up the hype of these motors popping? maybe, but i dont think so. in my city alone i have seen 2 out of maybe 6-8 MS6's pop. how many SRT4's do you see popping after putting on comparable mods? Evo's? STi's? not many, at least no where near as many as us. and they have a ton more of those cars on the road and a ton more people on their forums than we do. the new WRX was having some issues but they seem to have it figured out (within a couple months)

i will correct myself, there is a common denomitator. its the 2.3 DISI MZR engine.
 
incorrectly tuned when mods are in place is the issue. Map clamps, boost clamps and such were the early culprits. People turning up boost without monitoring afrs etc. All motors have weak spots too. and as time goes on and people break stuff we find the weak points. Tuning a car takes a good look at all the data and corrects the weak points. sometimes if more power is desired, mechanical upgrades are required also. i think the motor in general is fine. I have no warped heads, overheating, oil smoke. the clutch plate is not warped and still grabs well. I still have alot to learn about this car and am getting some good help from folks here. but to say these are prone to throw rods and melt pistons is just not true. I would appreciate if you would not talk out your behind sir.
 
you yourself said you are a noob when it comes to these cars, so let me help you out. the current record holders for the most power out of both speed3 and speed6 were untuned and simply using a map clamp/bcd and a manual boost controller. i would venture to say that more people have popped using some form of ecu tuning than untuned.

if these engines are not prone to failure, then why are there "blown engine resource threads" more than a few pages long. maybe not on this forum but on others. if these engines were so stout, then why havent more companies hopped on board making parts? 3 years after the engine's inception, we have one proven race team starting to take a good look at us, DCR. if these engines were not prone to destruction, why would we even be having this conversation?

do the math. take the number of blown DISI MZR motors + the amount of recalls issued for factory defficiencies + the amount of TSB's concerning major parts of the car (ie high pressure fuel pump, turbo seals, clutch, pcv system etc)= not that great of an engine.

dont get me wrong, i love my car. but to think that the engine is stout, mod friendly, or extremely reliable is just naive. i bought my car brand new in 06, and have been on the forums since then. i have read just about every thread concerning these issues. perhaps you should go back and read some more of the success and failure threads before you tell me not to speak out of my ass.
 
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