Dang, Little ole Neon motors are built better than the 3.5's. I have read just on this forum at least 40 motors blown due to FI and I bet that number is even in the hundreds!

And it is not just one make, its all of them!

So sad.

 

Car wasn't designed to be FI, what did you expect?

 

A motor turboed from the factory is quite a bit different than putting a pair of turbos on a high compression engine NOT designed to be turbocharged. When you push the limits, there is failure around the corner.

 

40 motors...come on man that's a little bit of an over the top estimate. 15 maybe.....maybe.

 

Perhaps, we should create a poll, NOT for blown motors, but to see how many of each brand exists on the forum. I hate to see Brand X blew my motor . . . let's see what the percentages are. And for the record, the percentages still won't point to reliability since most of the owners are tuning to exceed the mft specs.

 

https://my350z.com/forum/showthread....ht=blown+motor
https://my350z.com/forum/showthread....ht=blown+motor
https://my350z.com/forum/showthread....ht=blown+motor
https://my350z.com/forum/showthread....ht=blown+motor
https://my350z.com/forum/showthread....ht=blown+motor
https://my350z.com/forum/showthread....ht=blown+motor
https://my350z.com/forum/showthread....ht=blown+motor
https://my350z.com/forum/showthread....ht=blown+motor
https://my350z.com/forum/poll.php?do...ts&pollid=1359
31 just on the one above

https://my350z.com/forum/showthread....ht=blown+motor
https://my350z.com/forum/showthread....ht=blown+motor
https://my350z.com/forum/showthread....ht=blown+motor
https://my350z.com/forum/showthread....ht=blown+motor
https://my350z.com/forum/showthread....ht=blown+motor

And that was only searching 3 pages just on this site alone.

Care to retract that statement?

 

hahaha.....

I like evidence based arguments

 

I have never seen that post before. I am curious how there are 30 plus blown motors from 20 voters?? How about you add them all up and tell me if they are in the hundreds....care to retract that statement?

 

What I am saying is there are way more than 40, thats all, no arguments here, just trying to present factual info here.

I do admit that poll is not 100% correct.

 

I would like to see a list of actual screen names with blown motors....and not the N/A ones.

 

who cares how many motors are blown? what's there to argue about? the title says "What is the deal with all these blown motors?", not "How many motors has blown?"

I'm sure there are over 40+ motor blowns, there's more turbo 350z outside of my350z.com you know?

but to get back to the subject, I think the problem is the weak internals, period. Rods and Pistons, Compressions are not made for force induction.. even @ stock boost like Greddy TT 4.5psi, etc. If you want to do it right, change the internals and lower the compression, retard timing, and tune the a/f right, that will last a lot longer, but still not guaranteed..

if you want to play it safe with force induction, get one from factory, like above post, Dodge Neon, WRX/STi, Evo, etc.

 

You only live once, do it right.......

 

There are probably more blown motors also in the USA because everybody doesn't post on forums

 

Care to explain why there are motors blowing up at 320whp and others with WELL OVER 400whp with no problems to speak of? If weak internals were the culprit we'd see motors giving out at a relatively consistant power level.

People love to quickly blame the motor when in the end they usually find out that it was either a tuning or installation issue.

You should also note that there are BUILT MOTORS blowing up here too.

Something else is definitely at work here..weither it be the mysterious factory ECU, CAS wire, oil starvation, cooling issues, or just plain tuning issues.

If you still don't believe me...and think it's the motor's internals, explain why MANY greddy kits blow up @ very low boost levels while we have Vortech S/C kits @ 9psi and APS kits with 8-9 psi with virtually no issues as all.

 

Exactly. People are quick to trash the VQ motor, railing on it's internals, when in many cases of FI, this engine is pushed to TWICE it's factory intended power and it holds up just fine. I'll bet there's something else that comes into play.

Here are the charts from my tune...almost 10 lbs boost and the guys at Dyno-Comp assure me it's tuned very safe. I'm no expert, so I welcome any opinions, but these guys have NEVER blown a motor....and we're talking years of tuning experience.

 

OK just got done reading all of this. Here are my observations.

Links listed:
1. Failure due to coolant leak. Other unknown issues?
2. 2 months since it blew, no further information on why. Some have alluded to other reasons than a crappy VQ.
3. This blown engine is listed twice (#3 & #6).
4. Too lazy to look at.
5. Too lazy to look at.
6. See #3.
7. Two people listed by a third party. Unknown if this is true and what the circumstances surrounding their motors' failure.
8. Too lazy to look at.
9. The poll shows;
-----19 blown motors
-----12 cover the psi and not any particular kit.
-----> There are only 19 blown motors listed (NOT 31) and it is not possible to verify if the motor is actually blown and if it has been only listed once.

There are only 10 individuals who posted in this thread and none of them has a blown engine. The poll is extremely flawed.

10. 13.6 psi on stock internals......'nuff said.
11. To lazy to read.
12. No tune on his kit and it was blown on the 1/4 mile.
13. This guys seems to know what he's doing. This one bothers me about the cause. If this guy is doing things right, then this could actually be a true engine related problem.
14. This is a Sentra. Doesn't belong in this thread.



Make what you will out of this summary.