Forged Performance: 636whp G37 Coupe!!!

Decker@Forged · 11-07-2011, 08:13 AM

Hey everyone!

We've been extremely busy here at Forged wrapping up dozens of great builds over the past month or so. We wanted to share one of our G37 builds with the community. Brian came to us with a bone stock G37 coupe looking for a big power build on his daily driver. His goals were simple. Maximum power, pump gas, and no compromises for daily driving. We gladly accepted his challenge and put together a comprehensive build plan to meet those goals.

The end result is one of our highest pump gas VQ37 builds we've done, all while retaining the 100% OEM nature of the car. No check engine lights, no weird startups, no funny idles ... nothing ... and all tuned with the factory ECU. On first glance you'd be hard pressed to find any power adders on the car. But one squeeze of that throttle pedal leaves little doubt that there is a monster under the hood!

Here is a quick run down on this particular Forged Performance built and tuned G37. As always, all Forged Performance engine assemblies are built in house. We never outsource this critical function.

• Forged Performance S1 Shortblock
• Forged Performance Spec Extreme Duty Pistons
• Wiseco/K1 Connecting Rods
• ARP L19 Head Studs
• ARP Main Studs
• Cosworth Head Gaskets
• Greddy 20G Twin Turbo Kit
• Greddy RZ BOVs
• HKS Super Fire Spark Plugs
• Injector Dynamics 725cc Injectors
• Forged Performance Custom Return Fuel System
• CJ Motorsports Twin Pump
• HKS EVC 6 Boost Controller
• OS Giken Triple Plate Clutch
• Tein Flex Coilover System
• Stillen Oil Cooler
• Forged Performance Stainless Steel Brake Lines
• DriveShaft Shop Level 5 Axles
• HRE 560R Wheels, 20x10.5/20x9.5 Custom Painted Monster Candy Green
• BFGoodrich KDW2 Tires
• Motul Fluids
• Evans Waterless Coolant
• Forged Performance Custom Tune by Sharif@Forged

This BEAST made 636whp on 93 octane on our low reading Dyno Dynamics! Look at this power band.

and now for the eye candy!

Hope you all enjoy, and let us know if you have any questions.

fuct · 11-07-2011, 10:10 AM

Damn!

O&G · 11-07-2011, 10:44 AM

yummy!

Nixlimited · 11-07-2011, 11:21 AM

Videos or BS ;-)

Decker@Forged · 11-07-2011, 12:17 PM

Unfortunately, we don't have any vid of this one

2011 Nismo#91 · 11-07-2011, 01:04 PM

Very nice work, can't say I like the wheels though.

phunk · 11-07-2011, 01:37 PM

Great results over there!!! I was curious what you guys were doing with a twin pump for a G37!

Very nice to see, thanks for sharing the build details. Currently picking apart the items for my own winter build so I like seeing whats already been done.

I havent torn down my spare VHR motor yet. Are the L19s and the gaskets VHR specific or do they crossover from older VQs?

Cmike2780 · 11-07-2011, 01:46 PM

I can't say I hate the wheels, but I'm not a fan of them either. Everything else is pretty bad ***

Decker@Forged · 11-07-2011, 01:57 PM

Thanks Charles!

The head studs do cross over. The main studs are different though. We opted for the Cosworth head gaskets on this one.

NYBladeZ · 11-07-2011, 02:16 PM

What compression are you running with the pistons? Was the block sleeved as well? Still running stock displacement?

Decker@Forged · 11-07-2011, 02:27 PM

9.0:1 compression ratio in a non-sleeved block. Cylinders were bored .020 over

Jeffblue · 11-07-2011, 02:34 PM

Quote:

Originally Posted by Decker@Forged

9.0:1 compression ratio in a non-sleeved block. Cylinders were bored .020 over

cool! awesome to finally see some low compression VQ37's with a built bottom end. what boost level were you running for that dyno?

shadoquad · 11-07-2011, 02:37 PM

Quote:

Originally Posted by Cmike2780

I can't say I hate the wheels, but I'm not a fan of them either. Everything else is pretty bad ***

I dislike the wheels, but it doesn't matter. This G's a badazz!!!

roplusbee · 11-07-2011, 03:22 PM

This one's a monster! Great job on the build.

NYBladeZ · 11-07-2011, 04:46 PM

I'm assuming a core exchange is part of the engine build process right? I know this sounds weird, but I'm very attached to my core and I don't want to give it up.

11-07-2011, 08:13 AM	#1 (permalink)
Decker@Forged The370Z.com Sponsor Join Date: Oct 2009 Location: Alpharetta, GA Posts: 340 Drives: 2JZ 240sx Rep Power: 0	Forged Performance: 636whp G37 Coupe!!! Hey everyone! We've been extremely busy here at Forged wrapping up dozens of great builds over the past month or so. We wanted to share one of our G37 builds with the community. Brian came to us with a bone stock G37 coupe looking for a big power build on his daily driver. His goals were simple. Maximum power, pump gas, and no compromises for daily driving. We gladly accepted his challenge and put together a comprehensive build plan to meet those goals. The end result is one of our highest pump gas VQ37 builds we've done, all while retaining the 100% OEM nature of the car. No check engine lights, no weird startups, no funny idles ... nothing ... and all tuned with the factory ECU. On first glance you'd be hard pressed to find any power adders on the car. But one squeeze of that throttle pedal leaves little doubt that there is a monster under the hood! Here is a quick run down on this particular Forged Performance built and tuned G37. As always, all Forged Performance engine assemblies are built in house. We never outsource this critical function. • Forged Performance S1 Shortblock • Forged Performance Spec Extreme Duty Pistons • Wiseco/K1 Connecting Rods • ARP L19 Head Studs • ARP Main Studs • Cosworth Head Gaskets • Greddy 20G Twin Turbo Kit • Greddy RZ BOVs • HKS Super Fire Spark Plugs • Injector Dynamics 725cc Injectors • Forged Performance Custom Return Fuel System • CJ Motorsports Twin Pump • HKS EVC 6 Boost Controller • OS Giken Triple Plate Clutch • Tein Flex Coilover System • Stillen Oil Cooler • Forged Performance Stainless Steel Brake Lines • DriveShaft Shop Level 5 Axles • HRE 560R Wheels, 20x10.5/20x9.5 Custom Painted Monster Candy Green • BFGoodrich KDW2 Tires • Motul Fluids • Evans Waterless Coolant • Forged Performance Custom Tune by Sharif@Forged This BEAST made 636whp on 93 octane on our low reading Dyno Dynamics! Look at this power band. and now for the eye candy! Hope you all enjoy, and let us know if you have any questions.

11-07-2011, 10:44 AM	#3 (permalink)
O&G A True Z Fanatic Join Date: Nov 2010 Location: Lone Star State Age: 42 Posts: 1,212 Drives: 40th Anv. Rep Power: 23	yummy! __________________ O&G's Build/Journal <---(1st lowmount single turbo treeseventy) Built Engine Thread 2011 F-250 Build/Journal

11-07-2011, 11:21 AM	#4 (permalink)
Nixlimited A True Z Fanatic Join Date: Aug 2009 Location: San Diego Posts: 1,235 Drives: 15 GT-R / 11 Prius Rep Power: 26	Videos or BS ;-) __________________ Car Sold! Pleasure being a part of the Z community. New ride: 2015 GT-R - 647 WHP / 641 WTQ (e85) & 543 WHP / 519 WTQ (91)

11-07-2011, 01:37 PM	#7 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,668 Drives: 370 Rep Power: 974723	Great results over there!!! I was curious what you guys were doing with a twin pump for a G37! Very nice to see, thanks for sharing the build details. Currently picking apart the items for my own winter build so I like seeing whats already been done. I havent torn down my spare VHR motor yet. Are the L19s and the gaskets VHR specific or do they crossover from older VQs? __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph Last edited by phunk; 11-07-2011 at 01:40 PM.

11-07-2011, 01:46 PM	#8 (permalink)
Cmike2780 A True Z Fanatic Join Date: Jun 2010 Location: Long Island Posts: 5,059 Drives: slowwww Rep Power: 29	I can't say I hate the wheels, but I'm not a fan of them either. Everything else is pretty bad *** __________________ [09][MB][6-Spd MT][Touring][Stillen Gen III][K&N][Borla CBE][Evo-R] [ArchitTEK Photography]

11-07-2011, 10:10 AM	#2 (permalink)
fuct A True Z Fanatic Join Date: May 2009 Location: Sugar Land Posts: 3,692 Drives: 97' Ranger :) Rep Power: 24	Damn!

11-07-2011, 12:17 PM	#5 (permalink)
Decker@Forged The370Z.com Sponsor Join Date: Oct 2009 Location: Alpharetta, GA Posts: 340 Drives: 2JZ 240sx Rep Power: 0	Unfortunately, we don't have any vid of this one

11-07-2011, 01:04 PM	#6 (permalink)
2011 Nismo#91 A True Z Fanatic Join Date: Mar 2011 Location: NJ Posts: 2,401 Drives: slowly Rep Power: 40569	Very nice work, can't say I like the wheels though.

11-07-2011, 01:57 PM	#9 (permalink)
Decker@Forged The370Z.com Sponsor Join Date: Oct 2009 Location: Alpharetta, GA Posts: 340 Drives: 2JZ 240sx Rep Power: 0	Thanks Charles! The head studs do cross over. The main studs are different though. We opted for the Cosworth head gaskets on this one.

11-07-2011, 02:16 PM	#10 (permalink)
NYBladeZ A True Z Fanatic Join Date: Apr 2009 Location: New York Posts: 2,158 Drives: Lotus Exige S Rep Power: 20	What compression are you running with the pistons? Was the block sleeved as well? Still running stock displacement? __________________ 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

11-07-2011, 02:27 PM	#11 (permalink)
Decker@Forged The370Z.com Sponsor Join Date: Oct 2009 Location: Alpharetta, GA Posts: 340 Drives: 2JZ 240sx Rep Power: 0	9.0:1 compression ratio in a non-sleeved block. Cylinders were bored .020 over

11-07-2011, 03:22 PM	#14 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 23	This one's a monster! Great job on the build. __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

11-07-2011, 04:46 PM	#15 (permalink)
NYBladeZ A True Z Fanatic Join Date: Apr 2009 Location: New York Posts: 2,158 Drives: Lotus Exige S Rep Power: 20	I'm assuming a core exchange is part of the engine build process right? I know this sounds weird, but I'm very attached to my core and I don't want to give it up. __________________ 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

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