GTM Performance Engineering: VQ37VHR Twin Supercharger System

esfourteen · 02-26-2012, 12:57 AM

Quote:

Originally Posted by toner123

Develop a valve that vents when a certin boost is hit. Install it before the maf sensors

what you are looking for exists, it's basically just a bleeder valve so you limit peak boost:

928 Motorsports - Porsche® 928 Performance Parts - Universal Adjustable Boost Limiter Valve (BLV)

ZSIZZLE · 02-25-2012, 10:31 PM

isnt there twice the parasitic loss from the twin chargers when off boost??

Ron · 02-25-2012, 10:32 PM

What torque can we expect out of this? Better than a single SC setup?

NYBladeZ · 02-25-2012, 11:26 PM

Wow...kind of happy I didn't pull the trigger on FI just yet. Looks like the table is still being set with options.

NewlyIMPORTed · 02-25-2012, 11:50 PM

wow... Developments like this make me wish I had bought another Z.. Can't wait to see this on a car!

Mkai0 · 02-26-2012, 12:50 AM

Awesome,

a 370z may be in my future depending on how this turns out.

Robert_K · 02-26-2012, 07:08 AM

Nice Sam. If I remember correctly Koenigsegg started his cars with a Ford 5.0L with Twin Rotex superchargers. Good luck and will keep an eye on this!

gabe3d · 02-26-2012, 07:23 AM

Great stuff Sam. When do you plan to get this done?

There is a guy on the K20 platform that did a twin C38 setup. Though they are bigger he ran them in a piggy back setup. This GTM one should be very interesting since it runs a better bracket setup. Reminds me of the Power Enterprise Quad Charged R35 that runs the C30-94.

wheee! · 02-26-2012, 07:31 AM

this is a very interesting thread...

KaienZ34 · 02-26-2012, 08:14 AM

At what HP range would you (Sam) say the auto tranny would need upgrades? I'm looking for power in the 400-420WHP range. Wondering about how much money would be needed for the tranny upgrades. I've seen on your site you have fully built trannies and parts but i don't know what is needed for the 7AT to handle the small-ish amount of power i'm looking for. Thank you for your time.

DCNISMO · 02-26-2012, 08:20 AM

Quote:

isnt there twice the parasitic loss from the twin chargers when off boost??

Good question, but I think for this charger its minimal since the special fluid does not engage the blower till the rpm sees a quick increase. If it was a Vortech then I think it would be double, since they always spin the compresor. I'm wiondering how they will run the intercooler for this, still use one? I think you need two intercoolers now.

NewYorkJon34 · 02-26-2012, 09:11 AM

370ztsc

gbrettin · 02-26-2012, 09:54 AM

Wow, I'm kinda blown away. Didn't see this coming.

Kingbaby · 02-26-2012, 12:56 PM

Quote:

Originally Posted by gbrettin

Wow, I'm kinda blown away. Didn't see this coming.

+10billion

Same here...

edub370 · 02-26-2012, 10:00 AM

02-25-2012, 10:32 PM	#3 (permalink)
Ron A True Z Fanatic Join Date: Oct 2010 Location: Houston, TX Posts: 3,009 Drives: TT '11 PW Nismo #113 Rep Power: 23	What torque can we expect out of this? Better than a single SC setup? __________________ 2011 Twin Turbo PW nismo #113 - My Journal - My TT Build Thread [ GTM GTX Stg2 TT \|\| HKS EVC6 \|\| Custom CarPC \|\| F.I 3'' TDX CBE \|\| SB 6puck clutch/ZSpeed CSC \|\| BC BR Coilovers \|\| SPC camber arms \|\| Work VSS-X \|\| Custom Headlights \|\| PW:JDM CF Covers \|\| Seibon CF Engine Cover ]

02-25-2012, 11:26 PM	#4 (permalink)
NYBladeZ A True Z Fanatic Join Date: Apr 2009 Location: New York Posts: 2,158 Drives: Lotus Exige S Rep Power: 22	Wow...kind of happy I didn't pull the trigger on FI just yet. Looks like the table is still being set with options. __________________ 2009 Carbon Fiber/Red 370z aka Trish: Sports Package, Meisterschaft full catback, Fast Intentions Longtube Headers, Injen Long Tube Intakes, UpRev Tune: Sold 2008 Lotus Exige S Club Racer aka Bella, always leaves me smiling

02-25-2012, 11:50 PM	#5 (permalink)
NewlyIMPORTed A True Z Fanatic Join Date: May 2009 Location: Kennesaw, GA Posts: 1,109 Drives: 11 STI Sedan Rep Power: 19	wow... Developments like this make me wish I had bought another Z.. Can't wait to see this on a car! __________________ 2011 WRX STICobb Accessport, Nameless Performance exhaust, COBB SF Intake, COBB downpipe, 20% tint, Work Emotion XD9's

02-26-2012, 12:50 AM	#6 (permalink)
Mkai0 Base Member Join Date: Dec 2010 Location: Somewhere in Texas Posts: 209 Drives: 2008 G35 Sedan Rep Power: 16	Awesome, a 370z may be in my future depending on how this turns out. __________________ Eibach, Tanabe, Blitz, Vertini, GTM stage 1.5 SC, Aquamist, Invidia, Alto built 5AT, Edge Racing, Racelogic, GTM driveshaft, 440 whp in 101F TX heat..

02-26-2012, 07:08 AM	#7 (permalink)
Robert_K A True Z Fanatic Join Date: May 2009 Location: Spring, TX/Iraq Posts: 1,281 Drives: '12 Forgeline G37S Rep Power: 20	Nice Sam. If I remember correctly Koenigsegg started his cars with a Ford 5.0L with Twin Rotex superchargers. Good luck and will keep an eye on this! __________________ '12 G37S Forgeline, '03 Built TT 350Z HRE (Sold!) http://i107.photobucket.com/albums/m...psc7a6dc53.jpg

02-25-2012, 10:31 PM	#2 (permalink)
ZSIZZLE Base Member Join Date: Mar 2011 Location: NY Posts: 73 Drives: BMW M6 Rep Power: 16	isnt there twice the parasitic loss from the twin chargers when off boost??

02-26-2012, 07:23 AM	#8 (permalink)
gabe3d Base Member Join Date: Jun 2011 Location: Fresno, Ca Posts: 51 Drives: Old school G Rep Power: 15	Great stuff Sam. When do you plan to get this done? There is a guy on the K20 platform that did a twin C38 setup. Though they are bigger he ran them in a piggy back setup. This GTM one should be very interesting since it runs a better bracket setup. Reminds me of the Power Enterprise Quad Charged R35 that runs the C30-94. Last edited by gabe3d; 02-26-2012 at 07:25 AM.

02-26-2012, 07:31 AM	#9 (permalink)
wheee! A True Z Fanatic Join Date: Sep 2009 Location: Mod Capital of Canada Age: 59 Posts: 7,354 Drives: cars. lots of cars. Rep Power: 40183	this is a very interesting thread... __________________ H&R / Stillen / Berk / HKS / Swift / Michelin / UpRev / SPC / Amuse Rep / Seibon / Fringe XVO / TWM / more... My Journal

02-26-2012, 08:14 AM	#10 (permalink)
KaienZ34 A True Z Fanatic Join Date: Oct 2009 Location: LA. not L.a. Posts: 21,652 Drives: Z34 Tour/Sport Rep Power: 179	At what HP range would you (Sam) say the auto tranny would need upgrades? I'm looking for power in the 400-420WHP range. Wondering about how much money would be needed for the tranny upgrades. I've seen on your site you have fully built trannies and parts but i don't know what is needed for the 7AT to handle the small-ish amount of power i'm looking for. Thank you for your time. __________________ *"These Violent Delights Have Violent Ends"* http://www.the370z.com/members/kaienz34-albums-z34.html

02-26-2012, 09:11 AM	#12 (permalink)
NewYorkJon34 A True Z Fanatic Join Date: Jun 2009 Location: Naples, Florida Posts: 3,041 Drives: 09 Fairlady Z Rep Power: 1066	370ztsc __________________ NewYorkJon34's Ultimate Z Build

02-26-2012, 09:54 AM	#13 (permalink)
gbrettin A True Z Fanatic Join Date: Oct 2010 Location: Portage, MI Posts: 2,303 Drives: Tricycle Rep Power: 589152	Wow, I'm kinda blown away. Didn't see this coming.

02-26-2012, 10:00 AM	#15 (permalink)
edub370 A True Z Fanatic Join Date: May 2011 Location: KCMO Posts: 3,458 Drives: 09 370z S/T 6MT Rep Power: 22	__________________ 09 370Z ST 6MT//Injen CAI//Greddy CBE//TP//TSW's//Swifts//Stillen lip//Whiteline sways 326whp/268tq

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