Need some sensible input... to FI or not

[Summerwolf]

Well, there you have it. Tuning is what breaks rods, not the additional pressure caused by forced induction. Nor does fi increase the likelihood of having an internal engine issue.....

[CSG Mike]

Originally Posted by Summerwolf

Well, there you have it. Tuning is what breaks rods, not the additional pressure caused by forced induction. Nor does fi increase the likelihood of having an internal engine issue.....

You infer things that I am not saying. Don't misquite or twist what I am saying.

[Summerwolf]

Originally Posted by CSG Mike

You infer things that I am not saying. Don't misquite or twist what I am saying.

Ahhhh. Not trying to twist anything, I feel my overall statement was correct and you said it is tuning issues.

[weederr33]

Originally Posted by CSG Mike

it is completely dependent on the tune of both systems. Most people are not going FI with the intention of relieving stress on the rods, but it is entirely feasible and possible.

The CSG BRZ has over 54k miles at 400whp, and it's not driven easy. How could that possibly be?!?

Pixie Dust?

[CSG Mike]

Originally Posted by Summerwolf

Ahhhh. Not trying to twist anything, I feel my overall statement was correct and you said it is tuning issues.

Nope, still changing what I'm saying.

I said it is *tune dependent*.

[Summerwolf]

Originally Posted by CSG Mike

Nope, still changing what I'm saying.

I said it is *tune dependent*.

Ok...... so depending on tune fi doesn't increase pressure on connecting rods.

[Jaden]

Originally Posted by Summerwolf

Ok...... so depending on tune fi doesn't increase pressure on connecting rods.

I just want to know what you are basing your assertion on that the rods can't handle increased pressure???


As I stated in my original response, increased power always includes an increased risk in failures...


Your assertion that these cars are known for rod failures though leads me to believe that you're basing this fear of rod failure with FI on these known rod failures.


If that IS your assertion, then it just doesn't hold up.


You can't keep changing the standard by which your assertions are being measured...


First you said that these cars are known for rod failures, then you said it increased the likelihood of failure because of increased pressures...


Well, which is it? Are you generally asserting that increased cylinder pressures are more likely to result in failure? Duh!!! no one is arguing against that, we're merely arguing against the level of increased risk (with a proper tune).


Or are you sticking with your original assertion that the known rod failure issue leads you to believe that FI isn't safe at all in this platform.


You don't get it both ways.


Jaden

[Summerwolf]

Originally Posted by Jaden

I just want to know what you are basing your assertion on that the rods can't handle increased pressure???


As I stated in my original response, increased power always includes an increased risk in failures...


Your assertion that these cars are known for rod failures though leads me to believe that you're basing this fear of rod failure with FI on these known rod failures.


If that IS your assertion, then it just doesn't hold up.


You can't keep changing the standard by which your assertions are being measured...


First you said that these cars are known for rod failures, then you said it increased the likelihood of failure because of increased pressures...


Well, which is it? Are you generally asserting that increased cylinder pressures are more likely to result in failure? Duh!!! no one is arguing against that, we're merely arguing against the level of increased risk (with a proper tune).


Or are you sticking with your original assertion that the known rod failure issue leads you to believe that FI isn't safe at all in this platform.


You don't get it both ways.


Jaden

My first quote is that FI is the way to make power, when you make power you exponentially increase the likelihood of rod failure.

Basically.... when you increase stress to the motor (fi) you will bring out the weak points and will wind up building a motor in the quest for "high hp." Build a motor, increase your power potential and also your potential for issues.... it is a never ending spiral.

I have seen plenty of cars make power on stock bottom ends, but everyone that does acts like they walk on egg shells.