boost stock motor
#31
The problem is we need to specify what it means to "blow." If you mean fail by any method - then yes. It is possible that by adding extra load to an engine you can cause it to fail sooner than it would have from normal load conditions.
If you mean fail catastrophically - like as in send a rod through the side of the block - then not usually. I have seen a stock motor fail on break-in at 0psi because someone failed to torque a bottom end bearing cap. I have also seen the same thing happen due to a bad tune.
Basically in both situations, unless something is ready to fail on its own or your tune is messed up, you are pretty safe.
The more you are asking your engine to do, the stronger/fresher it needs to be.
#32
I am guessing what you are asking essentially is if high milage motors are more dangerous to add force induction to, and if they survive long in that condition.
The problem is we need to specify what it means to "blow." If you mean fail by any method - then yes. It is possible that by adding extra load to an engine you can cause it to fail sooner than it would have from normal load conditions.
If you mean fail catastrophically - like as in send a rod through the side of the block - then not usually. I have seen a stock motor fail on break-in at 0psi because someone failed to torque a bottom end bearing cap. I have also seen the same thing happen due to a bad tune.
Basically in both situations, unless something is ready to fail on its own or your tune is messed up, you are pretty safe.
The more you are asking your engine to do, the stronger/fresher it needs to be.
The problem is we need to specify what it means to "blow." If you mean fail by any method - then yes. It is possible that by adding extra load to an engine you can cause it to fail sooner than it would have from normal load conditions.
If you mean fail catastrophically - like as in send a rod through the side of the block - then not usually. I have seen a stock motor fail on break-in at 0psi because someone failed to torque a bottom end bearing cap. I have also seen the same thing happen due to a bad tune.
Basically in both situations, unless something is ready to fail on its own or your tune is messed up, you are pretty safe.
The more you are asking your engine to do, the stronger/fresher it needs to be.
#33
Basically thats it for me, as i'm still in the decision making process as to what miata I buy, and with what engine in what shape. Luckily I telecommute, so no need for a daily driver. So I doubt i'd put more than 2-3k miles on per year, and really i'm probably only looking at trying to reach the 180hp or so mark (as i'm looking for 5-6 second 0-60 times). So seems like a 6-8psi boost should easily hit that, and from the sounds of it not hugely reduce engine lifespan.
I turbocharged the Miata when it was my DD for a 200mi/day commute. 10-12psi, 180-200whp, and ragged on it for over a year.
It's all in the tune.
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StratoBlue1109
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09-30-2018 01:09 PM