Supercharged VQ37 Goes BOOOM

Brazilbro · 03-23-2011, 02:37 AM

Theres so much we don't know yet to start the finger pointing. Lets wait till all the info is in.

1slow370 · 03-23-2011, 04:40 AM

Quote:

Originally Posted by Staples

I understand that they're not linked... you're right, but as I said before it still boils down to the tune and MAF position. You don't need the knock sensors to pull timing if there isn't any type of detonation present. What would have caused the detonation from the get-go? Fuel, tune, too high of cylinder temperatures because of the boost spike maybe.

STFU about the MAF sensor placement draw through is the most accurate way to meter airflow in any setup unless a blowoff valve is venting or the bypass valve is routed improperly. the sensors in our cars cannot detect pressure above atmospheric so to go blow through you cannot compensate for boost pressure beyond setting the fuel trims to a safe envelope for what the "expected boost" the setup will make. Tell me how many oem blow through setups exist? oh none. blow through is used in cases where the volume of uncompressed air exceeds the MAF sensors maximum flow, or when an open BOV is used, OEM's go draw through because they are all recirculated to keep noise down, and they can design the MAF sensor around the setup because they are OEM. What may be important is mass airflow sensor SIZE if the stillen supercharger draws more air than the meters can support, then they would have needed to use larger diameter piping around the sensor and compensated for this in the ecu.

Either way I say detonation caused by bad fuel and ignition settings in the tune blowing the piston up, that or unrelated mechanical failure such as as a spun bearing causing the rod to blow and the piston got munched by the crank on the way out.

haggomyeggo · 03-23-2011, 10:58 AM

subscribed this is getting good

definitionxmk · 03-23-2011, 11:02 AM

The FI section is like a Korean Drama

Red__Zed · 03-23-2011, 12:47 PM

the amount of misinformation and misunderstanding in this thread makes my head hurt.

BLM · 03-23-2011, 12:57 PM

Quote:

Originally Posted by Staples

This post couldn't be further from worthless. As a buyer, the consumer should not have to worry about doing his / her research on which kit is better, both companies should equally do the same amount of research and development - ESPECIALLY a company that's been in business for so long. Safety should always be the first concern, then comes power. Longevity, reliability, maintenance are what a lot of people look for in forced induction.

Stillen, a known company for years has been making great aftermarket products for different car manufactures. To me, their flaw is their supercharger kits. This is not new since they were having issues ever since they came out with a root style kit for the 350z a while back (heat-soak, custom hood, lack of top-end power).

"It's really his fault. If all he wanted was power then yea, lean it out with the current set-up. But he should have told the tuner to leave it a little on the richer side if he was planning on headers all along."

You obviously don't know what's going on. He used a canned tune from Stillen that was "suppose" to be safe enough for him to use as a daily driver. Even adding headers, straight pipes, test pipes, high flow cats or what have you... it shouldn't affect the tune to the point it's too dangerous to even drive the car. The tune should be conservative enough to make changes without sacrificing the motor from detonation.

This isn't the buyer's fault.

Do you really believe the bolded part? Not to be fresh, but are you a Communist? Everything isn't made equally. That statement is beyond ignorant. Consumers shouldnt have to research their products?? Wow. Might I suggest a move to North Korea?

This motor didn't just blow up from him driving normally. He beat on it without tuning it. That's a Darwin Award nomination. These tunes are complicated. If anything, a stock tune from a manufacturer should be very conservative in terms of boost (not allowing the car to reach max), AFR (not pig rich but not too lean), and timing (no crazy advances), with the intention of having it optimally dyno-tuned by a professional. To think that you can just plug and play an F.I. setup is stupid.

Saying that the owner had no personal accountability in romping on his forced induction car with a new modification without a tune is idiotic. It's his car, he should know "hey, maybe I should make sure this is tuned before I beat on it". It's a childish outlook, honestly. You need to take responsibility when this stuff happens. His car didnt fly off the dyno. His car wasn't broken into overnight (as one of mine was). IF something was installed improperly and lead to this then it's not his fault. But still, maybe it's also not such a good idea to just throw money at a car without any knowledge of how it works.

If your bone is sticking out of your leg and you're in excruciating pain but the doctor says it's not broken, are you going to blindly believe him?

Even IF the tune was too aggressive, it's only the fault of the owner for beating on it before he got either A) a second opinion from the manufacturer or B) re-tuned. He could have driven the car normally and been fine.

Why the boost was spiking, that's another story...

Jordo! · 03-23-2011, 02:34 PM

Although I agree companies should take some responsiblity for doing adequate R&D before selling products, I think the issue here is moot.

I'm sure any warranty offered is for a locked tune and unaltered set-up. Meaning, if you change the tune or any major aspects of the set-up, you are effectively out of warranty.

Changing pulleys, headers, or tuning parameters will potentially greatly alter how the car runs, and that is beyond the control of the company that designed the kit.

If nothing was altered, car was driven normally, and something went pop, certainly the warranty should stand, and we could question the R&D of the company that developed the kit.

Here, I think, it's all wait and see...

christian370z · 03-23-2011, 02:39 PM

Quote:

Originally Posted by BLM

Not to be fresh, but are you a Communist? Everything isn't made equally.

LOL.

Xander117 · 03-23-2011, 03:48 PM

So this is where all the cool kids are

Kastley85891 · 03-23-2011, 04:08 PM

Change what you want on a F.I. motor, it will be fine.... classic

toner123 · 03-23-2011, 04:09 PM

Let's chill with the attacks and see where this thread develops so we can find out what happen to educate us instead of getting it locked and we don't find out anything. Stillen is involved and there being active in this thread. By makin assumptions and jumping on them with out knowing the cause is goig to make them not want to post shot about this an lean more towards a **** them attitude.
Frank

shumby · 03-26-2011, 11:18 PM

hi

frost · 03-26-2011, 11:27 PM

Quote:

Originally Posted by shumby

hi

98intrigue · 03-26-2011, 11:57 PM

Oh, hey. I'm still curious about the reason why it went boom.

b1adesofcha0s · 03-27-2011, 12:00 AM

Quote:

Originally Posted by 98intrigue

Oh, hey. I'm still curious about the reason why it went boom.

Dude, that photo in your sig is sooooo sick!

When are you gonna upload the pics from the photoshoot? I'm excited to see how the rest came out.

03-23-2011, 02:37 AM	#91 (permalink)
Brazilbro A True Z Fanatic Join Date: Mar 2009 Location: Indianapolis, IN Posts: 1,131 Drives: Juke/240Z Rep Power: 848	Theres so much we don't know yet to start the finger pointing. Lets wait till all the info is in. __________________ Juke AWD/240Z SR20 08 Evo 10(Stage 2) SOLD Fastest Sport 6spd 370Z 11.8 @126.5SOLD

03-23-2011, 11:02 AM	#94 (permalink)
definitionxmk Track Member Join Date: Jul 2009 Location: Los Angeles CA Posts: 973 Drives: Stage 2 SC 370Z Rep Power: 17	The FI section is like a Korean Drama __________________ *FALKEN . AMUSE . STANCE . INVIDIA . MINES . TOMMY KAIRA . BRIDE . VOLK RACING . GTM* Featured in DSPORT issue #137 - Follow me on Instagram: @definitionxmk

03-23-2011, 02:34 PM	#97 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	Although I agree companies should take some responsiblity for doing adequate R&D before selling products, I think the issue here is moot. I'm sure any warranty offered is for a locked tune and unaltered set-up. Meaning, if you change the tune or any major aspects of the set-up, you are effectively out of warranty. Changing pulleys, headers, or tuning parameters will potentially greatly alter how the car runs, and that is beyond the control of the company that designed the kit. If nothing was altered, car was driven normally, and something went pop, certainly the warranty should stand, and we could question the R&D of the company that developed the kit. Here, I think, it's all wait and see... __________________ Enjoy it. Destroy it.

03-23-2011, 04:08 PM	#100 (permalink)
Kastley85891 A True Z Fanatic Join Date: Nov 2009 Location: ATX 370 - Sold Posts: 1,149 Drives: 2003 Wagon Rep Power: 18	Change what you want on a F.I. motor, it will be fine.... classic __________________ Boosted V8 hunter 2850 lbs and 375WHP

03-26-2011, 11:18 PM	#102 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 237	hi __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

03-23-2011, 10:58 AM	#93 (permalink)
haggomyeggo A True Z Fanatic Join Date: Mar 2011 Location: IL Posts: 1,723 Drives: Steves old cars Rep Power: 17	subscribed this is getting good

03-23-2011, 12:47 PM	#95 (permalink)
Red__Zed A True Z Fanatic Join Date: Jul 2010 Location: window seat Posts: 28,940 Drives: Mostly on two wheels Rep Power: 120	the amount of misinformation and misunderstanding in this thread makes my head hurt.

03-23-2011, 03:48 PM	#99 (permalink)
Xander117 Enthusiast Member Join Date: Feb 2011 Location: Warner Robins, GA Posts: 446 Drives: 370, z71, R6 Rep Power: 14	So this is where all the cool kids are

03-23-2011, 04:09 PM	#101 (permalink)
toner123 Track Member Join Date: May 2010 Location: chesapeake va Age: 39 Posts: 823 Drives: TT 370z Touring/SP Rep Power: 16	Let's chill with the attacks and see where this thread develops so we can find out what happen to educate us instead of getting it locked and we don't find out anything. Stillen is involved and there being active in this thread. By makin assumptions and jumping on them with out knowing the cause is goig to make them not want to post shot about this an lean more towards a **** them attitude. Frank

03-26-2011, 11:57 PM	#104 (permalink)
98intrigue A True Z Fanatic Join Date: Jul 2010 Location: Clearwater, FL Age: 39 Posts: 4,855 Drives: 2014 Viper Rep Power: 430	Oh, hey. I'm still curious about the reason why it went boom. __________________ Ryan - 2014 Stryker Green Viper Gone - a few Vipers and a couple turbo VQs

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