TWIN TURBO AND QTP ELECTRIC CUTOUTS - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

_Onyx_Wolf_ · 02-21-2015, 12:35 AM

hey guys I have a few questions regarding using a front mounted kit like the Fabberge twin turbo setup and using QTP electric cutouts. First, would you make more power with the cutouts being a few feet from where the turbos are? Second, would the exhuast quiet down more and would you hear the turbo whistle more? And Lastly, would it be safe to run it so close?

mbrusco103 · 02-21-2015, 03:14 AM

Hi, i dont have a V6 but i did have qtp cutouts on my V8 with agp twins on it. in my experience i was loosing power with the cutouts open and having trouble keeping the idle alive even with alot of tuning to try and straighten it out. it was causing too much turblence in the exhaust. ive switched out to a larger exhaust and i have noweeds on order. you might have better luck than i did tho. Good luck!

JantzenOKC · 02-21-2015, 06:20 AM

I don't think it would sound good at all but who knows.. and I've been told that you need SOME back pressure or you can over spool the turbos and hurt them, especially smaller ones.

I'm running the Fabberge kit. I have the magnaflow resonated xpipe then straight pipe and it's plenty loud and actually sounds really good..

hunterv6 · 02-21-2015, 10:19 AM

Don't have twins but my cutouts sound awesome with my single far as losing hp not sure just up the boost. turbos don't require back pressure that why cats are removed the less the better.

Sent from my iPhone using Tapatalk

hunterv6 · 02-21-2015, 10:24 AM

http://youtu.be/yEZB0bmfWy8

Here a clip of mine not great quality but it will help you judge for yourself.

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_Onyx_Wolf_ · 02-21-2015, 10:44 PM

Thanks for all the responses guys, and I found a vid on YouTube where this guy had a 2012 lfx with twin turbos and dynoed it with cutouts open and closed. Closed it was 400whp and open it was 425whp!

Pt_killa · 02-22-2015, 02:49 PM

Generally, the less backpressure after the turbo, the faster the turbo will spool since there is less restriction on spinning the exhuast wheel. The only potential problem is that the turbo could over boost or creep if the wastegate configuration isn't setup properly or turbine sizing is off (which I don't think either is an issue with the Fabberge kit).

ZiG · 02-22-2015, 02:57 PM

I once had to drive a turbo car 20 miles with absolutely no exhaust piping after the turbo, and man did it whistle. Sounded like a dump truck.

_Onyx_Wolf_ · 02-23-2015, 03:35 PM

Would it quiet the Exhuast down much? Or no since it's taking the place of the cats.

02-21-2015, 12:35 AM	#1
_Onyx_Wolf_ Onyx_Z7 <— Instagram Drives: 2013 2ss 1le Join Date: Aug 2014 Location: Delaware Posts: 634	TWIN TURBO AND QTP ELECTRIC CUTOUTS hey guys I have a few questions regarding using a front mounted kit like the Fabberge twin turbo setup and using QTP electric cutouts. First, would you make more power with the cutouts being a few feet from where the turbos are? Second, would the exhuast quiet down more and would you hear the turbo whistle more? And Lastly, would it be safe to run it so close?

02-21-2015, 03:14 AM	#2
mbrusco103 Drives: 2011 2SS/RS (M6) 427 Twin Turbo Join Date: May 2008 Location: NJ Posts: 1,090 View My Garage	Hi, i dont have a V6 but i did have qtp cutouts on my V8 with agp twins on it. in my experience i was loosing power with the cutouts open and having trouble keeping the idle alive even with alot of tuning to try and straighten it out. it was causing too much turblence in the exhaust. ive switched out to a larger exhaust and i have noweeds on order. you might have better luck than i did tho. Good luck! __________________ 2011 Camaro 2SS/RS ERL 427 M6 TT -AGP Twin Turbo 55/57 .83ar \| ERL 427ci \| Squash Fuel System \| Stainless Works Chambered 3" \| Mcleod RXT \| Factory Hurst Short Throw \| Black Forgestar F14s \| CTS V 6 Piston Brembo \| VIS AMS Carbon Fiber Hood \| Anvil Carbon Fiber Spoiler

02-21-2015, 06:20 AM	#3
JantzenOKC Drives: '13 2LT/RS Twin Turbo Join Date: Aug 2012 Location: Edmond, Oklahoma Posts: 3,073	I don't think it would sound good at all but who knows.. and I've been told that you need SOME back pressure or you can over spool the turbos and hurt them, especially smaller ones. I'm running the Fabberge kit. I have the magnaflow resonated xpipe then straight pipe and it's plenty loud and actually sounds really good.. __________________ 3.6L Twin Turbo V6 Garrett GT28 turbos -- Jacfab forged connecting rods -- Diamond forged pistons(10.5:1) -- Alky Control Methonal Injection -- CircleD 2E triple disc torque converter -- BMR suspension 10.75 @ 131mph

02-21-2015, 10:19 AM	#4
hunterv6 Always bet on Black Drives: 2011 turbo LS, 2012 f 150, Join Date: Nov 2010 Location: Concord Nc Posts: 1,983	TWIN TURBO AND QTP ELECTRIC CUTOUTS Don't have twins but my cutouts sound awesome with my single far as losing hp not sure just up the boost. turbos don't require back pressure that why cats are removed the less the better. Sent from my iPhone using Tapatalk __________________ Last edited by hunterv6; 02-22-2015 at 10:28 AM.

02-21-2015, 10:24 AM	#5
hunterv6 Always bet on Black Drives: 2011 turbo LS, 2012 f 150, Join Date: Nov 2010 Location: Concord Nc Posts: 1,983	http://youtu.be/yEZB0bmfWy8 Here a clip of mine not great quality but it will help you judge for yourself. Sent from my iPhone using Tapatalk __________________

02-21-2015, 10:44 PM	#6
_Onyx_Wolf_ Onyx_Z7 <— Instagram Drives: 2013 2ss 1le Join Date: Aug 2014 Location: Delaware Posts: 634	Thanks for all the responses guys, and I found a vid on YouTube where this guy had a 2012 lfx with twin turbos and dynoed it with cutouts open and closed. Closed it was 400whp and open it was 425whp!

02-22-2015, 02:49 PM	#7
Pt_killa Drives: Black 2010 Camaro V6 Join Date: Apr 2010 Location: VA Posts: 465 View My Garage	Generally, the less backpressure after the turbo, the faster the turbo will spool since there is less restriction on spinning the exhuast wheel. The only potential problem is that the turbo could over boost or creep if the wastegate configuration isn't setup properly or turbine sizing is off (which I don't think either is an issue with the Fabberge kit). __________________ (Sold Sept 2015) Stock 18" Heritage w/ BFG G-Force ZR tires / Blacked out bowties and tail lights / DIY Remote-Mount Turbo Kit (Precision 6776S .81ar ex. @ 6.5psi, Tial 38mm WG, Greddy Type-S BOV) / RX Catch Can / RX-FTI 3600 Stall / Blue Well Lights / Team LLT

02-22-2015, 02:57 PM	#8
ZiG Drives: 2011 2SS/RS LS3 Join Date: Jan 2015 Location: Alberta Posts: 173	I once had to drive a turbo car 20 miles with absolutely no exhaust piping after the turbo, and man did it whistle. Sounded like a dump truck.

02-23-2015, 03:35 PM	#9
_Onyx_Wolf_ Onyx_Z7 <— Instagram Drives: 2013 2ss 1le Join Date: Aug 2014 Location: Delaware Posts: 634	Would it quiet the Exhuast down much? Or no since it's taking the place of the cats.