Supercharged VQ37 Goes BOOOM

Lug · 03-22-2011, 11:44 AM

Quote:

Originally Posted by b1adesofcha0s

I've been reading a lot of bad things about Stillen products recently. Are they all like that? I hope the Gen 3 intakes are excluded from this bad list since those are the only Stillen products I plan on getting.

Sounds more like bad advice than a product fault from what I'm reading in the article.

tomnavone · 03-22-2011, 01:36 PM

Quote:

Originally Posted by GraphiteG37S

My buddy is selling his after just two weeks cause he said they rattle too much and it gets super annoying every time he drives the car.

Stillen wouldn't take it back? After months of hounding stillen they returned my money minus a bs restocking fee. Who would buy this kit after all the problems people have had with it?

jnaut · 03-22-2011, 02:59 PM

Quote:

Originally Posted by GraphiteG37S

My buddy is selling his after just two weeks cause he said they rattle too much and it gets super annoying every time he drives the car.

Then it was installed incorrectly, should only opened the holes to a tight fitment.

BLM · 03-22-2011, 11:49 AM

It's not the charger. Granted, GTM's is better and easier to install, but it's not the charger. It was running fine prior to the header install, so it seems. My best guess is that the tune was too agressive in terms of AFR and the header leaned it out to a dangerous level at WOT. It's really the fault of whoever told the owner that he didn't need a tune, but the owner is also at fault for not knowing that a tune would be needed.

BeachZTT · 03-22-2011, 12:42 PM

There is NO substitute for wideband AFR on an FI motor, period. Something as simple as a hose or clamp failure can cost you a motor.

weiboy718 · 03-22-2011, 12:50 PM

I'm so glad I switched kits before anything happened. Too bad I'll never know if it's done any damage to my engine or not.

Nixlimited · 03-22-2011, 01:07 PM

Quote:

Originally Posted by weiboy718

I'm so glad I switched kits before anything happened. Too bad I'll never know if it's done any damage to my engine or not.

You could get a leak-down check done.

#452-LE · 03-22-2011, 01:56 PM

I got nothing, but I wipe the sweat from my brow every time I hear of this happening. Thank the heavens above I went with GTM.... and Sam is my sheppard!!

Viera · 03-22-2011, 02:00 PM

Ouch, Charlie!

A.J@CarbonSignal · 03-22-2011, 02:48 PM

Sad to see this happen.....I'm wondering who claimed that the car doesnt require a tune after adding the headers?

weiboy718 · 03-22-2011, 02:53 PM

Quote:

Originally Posted by A.J@CarbonSignal

Sad to see this happen.....I'm wondering who claimed that the car doesnt require a tune after adding the headers?

Maybe it's the same person from Stillen who told me "DETONATION IS NORMAL" lol

wishihadnav · 03-22-2011, 02:52 PM

damn!..hope the owner gets this all sorted out..

Cmike2780 · 03-22-2011, 03:09 PM

I don't know what you guys are babbling on about.....sounds like a limp mode issue to me

Staples · 03-22-2011, 04:11 PM

Stillen's kit uses an UpRev canned tune with their "turn-key" kit. UpRev uses the MAF sensors to actually tune the car, just like a factory tune. Think about it, we buy these cars worldwide; different elevation, different gas, different variances.

When you're tuning the vehicle, the MAF sensor is compensating the air, so if you say at full throttle I want to keep it around 11.5 - 11.6, then the MAF will compensate the air/fuel to see as close to those measurements as possible. Why do you think when you go with GTM's turbo turn-key kit, you don't need a custom tune sent to you if you decide to add test pipes, a 3" exhaust or anything else (thanks to the blow-through style MAF setup)? A lot of it has to do with Timing too. If you don't have an aggressive timing, you can get away with extra mods without needing a new tune.

What I think the issues is... the pull-through MAF system. You're not getting an accurate measurement of the air that's reaching the engine because it's being changed when it blows through the charger.

I've done a lot of research on this and there are a couple members I'd like to personally thank that have given me great insight on their review of this kit.

I could be wrong though

weiboy718 · 03-22-2011, 04:29 PM

Quote:

Originally Posted by Staples

Stillen's kit uses an UpRev canned tune with their "turn-key" kit. UpRev uses the MAF sensors to actually tune the car, just like a factory tune. Think about it, we buy these cars worldwide; different elevation, different gas, different variances.

When you're tuning the vehicle, the MAF sensor is compensating the air, so if you say at full throttle I want to keep it around 11.5 - 11.6, then the MAF will compensate the air/fuel to see as close to those measurements as possible. Why do you think when you go with GTM's turbo turn-key kit, you don't need a custom tune sent to you if you decide to add test pipes, a 3" exhaust or anything else (thanks to the blow-through style MAF setup)? A lot of it has to do with Timing too. If you don't have an aggressive timing, you can get away with extra mods without needing a new tune.

What I think the issues is... the pull-through MAF system. You're not getting an accurate measurement of the air that's reaching the engine because it's being changed when it blows through the charger.

I've done a lot of research on this and there are a couple members I'd like to personally thank that have given me great insight on their review of this kit.

I could be wrong though

03-22-2011, 11:49 AM	#4 (permalink)
BLM Enthusiast Member Join Date: Feb 2011 Location: NJ Posts: 342 Drives: 2011 Silver M6 sport Rep Power: 15	It's not the charger. Granted, GTM's is better and easier to install, but it's not the charger. It was running fine prior to the header install, so it seems. My best guess is that the tune was too agressive in terms of AFR and the header leaned it out to a dangerous level at WOT. It's really the fault of whoever told the owner that he didn't need a tune, but the owner is also at fault for not knowing that a tune would be needed. __________________ K&N // GTM // BERK

03-22-2011, 12:42 PM	#5 (permalink)
BeachZTT Track Member Join Date: Jul 2009 Location: Colorado Posts: 746 Drives: '10 BC ZR T/S/Nav Rep Power: 18	There is NO substitute for wideband AFR on an FI motor, period. Something as simple as a hose or clamp failure can cost you a motor. __________________ '10 ZR Black Cherry Sport/Touring/Nav, Swift Springs, Stillen G3s, 15mm-F 20mm-R Spacers, SPC, Spoiler Solutions Rear Wing, Stubby Antenna

03-22-2011, 01:56 PM	#8 (permalink)
#452-LE Base Member Join Date: Dec 2009 Location: Behind Dulles AP Posts: 117 Drives: '09 370Z 7AT-Stg2 TT Rep Power: 16	I got nothing, but I wipe the sweat from my brow every time I hear of this happening. Thank the heavens above I went with GTM.... and Sam is my sheppard!! __________________ '06 R6 track,'06 R1-LE track,'09 848 street, '11Duc Multistrada 1200ST, '07 STi T-back '09 GTM stg2 TT-370Z-7AT (470whp/ 422wtq @10PSI)

03-22-2011, 02:48 PM	#10 (permalink)
A.J@CarbonSignal Track Member Join Date: Feb 2011 Location: Dubai Posts: 581 Drives: '05 TT350z, '07 Z06 Rep Power: 17	Sad to see this happen.....I'm wondering who claimed that the car doesnt require a tune after adding the headers? __________________ CarbonSignal Automotive *Facebook*

03-22-2011, 03:09 PM	#13 (permalink)
Cmike2780 A True Z Fanatic Join Date: Jun 2010 Location: Long Island Posts: 5,059 Drives: slowwww Rep Power: 30	I don't know what you guys are babbling on about.....sounds like a limp mode issue to me __________________ [09][MB][6-Spd MT][Touring][Stillen Gen III][K&N][Borla CBE][Evo-R] [ArchitTEK Photography]

03-22-2011, 12:50 PM	#6 (permalink)
weiboy718 Track Member Join Date: May 2010 Location: Bay Area Posts: 923 Drives: Infiniti G37 Rep Power: 17	I'm so glad I switched kits before anything happened. Too bad I'll never know if it's done any damage to my engine or not.

03-22-2011, 02:00 PM	#9 (permalink)
Viera Track Member Join Date: Feb 2009 Location: Atlanta, GA Posts: 897 Drives: '09 M.Blue 370Z 6MT Rep Power: 265	Ouch, Charlie!

03-22-2011, 02:52 PM	#12 (permalink)
wishihadnav A True Z Fanatic Join Date: Nov 2009 Location: 90090 Posts: 1,851 Drives: Force Fed Nismo Rep Power: 184	damn!..hope the owner gets this all sorted out..

03-22-2011, 04:11 PM	#14 (permalink)
Staples Track Member Join Date: Sep 2010 Location: Baltimore, MD Posts: 546 Drives: '08 Infiniti G37s Rep Power: 16	Stillen's kit uses an UpRev canned tune with their "turn-key" kit. UpRev uses the MAF sensors to actually tune the car, just like a factory tune. Think about it, we buy these cars worldwide; different elevation, different gas, different variances. When you're tuning the vehicle, the MAF sensor is compensating the air, so if you say at full throttle I want to keep it around 11.5 - 11.6, then the MAF will compensate the air/fuel to see as close to those measurements as possible. Why do you think when you go with GTM's turbo turn-key kit, you don't need a custom tune sent to you if you decide to add test pipes, a 3" exhaust or anything else (thanks to the blow-through style MAF setup)? A lot of it has to do with Timing too. If you don't have an aggressive timing, you can get away with extra mods without needing a new tune. What I think the issues is... the pull-through MAF system. You're not getting an accurate measurement of the air that's reaching the engine because it's being changed when it blows through the charger. I've done a lot of research on this and there are a couple members I'd like to personally thank that have given me great insight on their review of this kit. I could be wrong though __________________ '08 Infiniti G37s - Forced Induction Fed Last edited by Staples; 03-22-2011 at 04:14 PM.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Stillen Supercharged!	thezmonster	Engine & Drivetrain	22	10-19-2010 11:29 AM
370z vs Supercharged E46 M3	GingaBreadMan	Nissan 370Z General Discussions	32	04-10-2010 10:49 PM
Supercharged 370 vs GTR?	FuPaXxTyTy	Engine & Drivetrain	32	02-11-2010 09:31 AM
Gtm supercharged 370z	Valentino	GT MotorSports	6	09-06-2009 05:11 PM