GTM Performance Engineering VQ45VHR-Our Journey to The 1000 HP and Beyond

Nixlimited · 07-14-2011, 01:07 PM

Quote:

Originally Posted by DIGItonium

AFAIK, custom fuel rails to support the lower manifold adapter for the VR38 intake plenum, but I guess it will also support the larger injectors for Mike's build. Unless these fuel rails are a one size fits all solution, my car won't be needing it for the Stage II @ 6.5 PSI and VR38 intake plenum.

Since I'm in a bit of a crunch and cannot afford technical challenges beyond the TT setup, I'm going to hold off the VR38 plenum project for awhile. I was really hoping for something similar to Mike's setup with BOVs located in the engine bay.

Technically speaking (i.e. aesthetics notwithstanding), you don't want the BOVs in the engine bay. You want them before the intercooler. There is no point in heat soaking the intercooler with air that you are going to then vent after the intercooler, but before the combustion chamber i.e. air that is never going to be combusted. It may not matter much in the end, but if you want the highest system efficiency, then you don't want to cool air you don't have to.

DIGItonium · 07-14-2011, 02:06 PM

Quote:

Originally Posted by Nixlimited

Technically speaking (i.e. aesthetics notwithstanding), you don't want the BOVs in the engine bay...

Ah, thanks for the heads up. I wondered about the location of the BOVs in the HR versus VHR kits leading to Mike's setup.

Ron · 07-14-2011, 07:49 PM

BOVs on a GTM kit are already on the cold side of the IC. It's just a matter of moving them closer towards the TBs. They did it on this one:
GTM Motorsports*::*Customer Vehicles*::*Juan.U

Check these pics and follow the pipes.
GT Motorsports: GTM Stage 1 TT Tuner Kit, GTM 3" Cat Back, 583RWHP/532RWTQ

JB-370z · 07-18-2011, 12:41 PM

Quote:

Originally Posted by Ron

BOVs on a GTM kit are already on the cold side of the IC. It's just a matter of moving them closer towards the TBs. They did it on this one:
GTM Motorsports*::*Customer Vehicles*::*Juan.U

Check these pics and follow the pipes.
GT Motorsports: GTM Stage 1 TT Tuner Kit, GTM 3" Cat Back, 583RWHP/532RWTQ

I am doing it on mine.

Ron · 07-18-2011, 05:29 PM

Me too... I need to talk to you about that JB, can u pm me your number?

Reality · 08-04-2011, 08:45 AM

Bumping in anticipation of epic results..
-Where oh Where can the 1000+whp #'s be? Where OH WHERE?

SparkleCityHop · 08-07-2011, 09:56 AM

This build came up in conversation twice in the Formula Drift Pro/Am garage in Charlotte, NC yesterday. Conversations were about what HP the 35DE, 35HR, and 37 engines can do with turbos (stock vs built) - conversation one was about comparing to Sikky LSx swaps and conversation two was about comparing to the R35 platform. I wasn't sure what the top HP dynos are currently on the 370, but knew that you guys have been shooting to be the first to 1000hp on the 370 for a while now.

I haven't been on here long enough to know - and I hope this question isn't too far off-topic, but what's the most HP that anyone's seen so far on a dyno sheet for the 370 platform? I'm just wondering how much of a leap forward this 1000+hp build represents compared to the next highest?

Thanks!

DIGItonium · 08-07-2011, 11:55 AM

Welcome!

From a quick search, I honestly have not seen a 370Z make more than 600whp (stock block). The highest boost is no more than 12 PSI. Take a look at the torque curve from these motors as the boost gets increased... interesting?

500whp
The Specialty-Z GTM Stage 2 Build
GTM TWIN TURBO kit: 2009 370Z 539WHP/490RWTQ-WATER INJECTED TORQUE MONSTER
Gtm 370z twin turbo transformation 548rwhp 486rwtq @ 11 psi

However, this is probably the most I've seen from a VQ37 stock block:
GT Motorsports: GTM Stage 2 TT G37 Coupe, GTM 3" Cat-Back, GTM Flash, 611RWHP/474RWTQ

Red__Zed · 08-07-2011, 02:20 PM

Quote:

Originally Posted by SparkleCityHop

This build came up in conversation twice in the Formula Drift Pro/Am garage in Charlotte, NC yesterday. Conversations were about what HP the 35DE, 35HR, and 37 engines can do with turbos (stock vs built) - conversation one was about comparing to Sikky LSx swaps and conversation two was about comparing to the R35 platform. I wasn't sure what the top HP dynos are currently on the 370, but knew that you guys have been shooting to be the first to 1000hp on the 370 for a while now.

I haven't been on here long enough to know - and I hope this question isn't too far off-topic, but what's the most HP that anyone's seen so far on a dyno sheet for the 370 platform? I'm just wondering how much of a leap forward this 1000+hp build represents compared to the next highest?

Thanks!

It is a pretty freaking big jump. I haven't seen anything in the 700 range even.

1slow370 · 08-07-2011, 04:16 PM

ifit's just vq37's then there was the g37 gtm did that was dyno'd at like 700 or 800 something, the last shop car

christian370z · 08-07-2011, 06:11 PM

The power and torque curves look identical even as the boost goes up, hp is still climbing at the end of every run regardless of the psi being run which is pretty impressive.

DIGItonium · 08-07-2011, 06:22 PM

Quote:

Originally Posted by christian370z

The power and torque curves look identical even as the boost goes up, hp is still climbing at the end of every run regardless of the psi being run which is pretty impressive.

What I think is interesting is how the torque curve hits the ceiling at 400 lb-ft at 4k RPM at 12 PSI, but maybe there are other factors since this stuff is way over my head tee hee.

christian370z · 08-07-2011, 06:41 PM

I bet that has a lot to do with VVEL, especially as it applies to supercharged setups. But I guess that is just speculative until some real world results from GTM come out, it will be very interested to see what kind of gains cracking VVEL will give not only to FI guys but also N/A setups.

DIGItonium · 08-07-2011, 07:02 PM

Holy crap... I wonder how GTM is doing with the intake manifold and collector. After watching this video... I can't imagine simply slapping this thing onto our engines O_o

Kingbaby · 08-07-2011, 11:39 PM

anticipation

07-14-2011, 07:49 PM	#1533 (permalink)
Ron A True Z Fanatic Join Date: Oct 2010 Location: Houston, TX Posts: 3,009 Drives: TT '11 PW Nismo #113 Rep Power: 22	BOVs on a GTM kit are already on the cold side of the IC. It's just a matter of moving them closer towards the TBs. They did it on this one: GTM Motorsports::Customer Vehicles::Juan.U Check these pics and follow the pipes. GT Motorsports: GTM Stage 1 TT Tuner Kit, GTM 3" Cat Back, 583RWHP/532RWTQ Last edited by Ron; 07-14-2011 at 08:01 PM.

08-04-2011, 08:45 AM	#1536 (permalink)
Reality Enthusiast Member Join Date: Dec 2008 Location: Toronto, Canada Posts: 290 Drives: '06 PPW GT Rep Power: 16	Bumping in anticipation of epic results.. -Where oh Where can the 1000+whp #'s be? Where OH WHERE? __________________ //2005 35th SB #81 [tyra] SOLD //2006 GT PPW SOLD

08-07-2011, 09:56 AM	#1537 (permalink)
SparkleCityHop Base Member Join Date: Jun 2011 Location: Spartanburg, SC Age: 50 Posts: 13 Drives: 04 MT 350Z Roadster Rep Power: 14	This build came up in conversation twice in the Formula Drift Pro/Am garage in Charlotte, NC yesterday. Conversations were about what HP the 35DE, 35HR, and 37 engines can do with turbos (stock vs built) - conversation one was about comparing to Sikky LSx swaps and conversation two was about comparing to the R35 platform. I wasn't sure what the top HP dynos are currently on the 370, but knew that you guys have been shooting to be the first to 1000hp on the 370 for a while now. I haven't been on here long enough to know - and I hope this question isn't too far off-topic, but what's the most HP that anyone's seen so far on a dyno sheet for the 370 platform? I'm just wondering how much of a leap forward this 1000+hp build represents compared to the next highest? Thanks! __________________ SparkleCityHop has spoken... /THREAD

08-07-2011, 11:55 AM	#1538 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	Welcome! From a quick search, I honestly have not seen a 370Z make more than 600whp (stock block). The highest boost is no more than 12 PSI. Take a look at the torque curve from these motors as the boost gets increased... interesting? 500whp The Specialty-Z GTM Stage 2 Build GTM TWIN TURBO kit: 2009 370Z 539WHP/490RWTQ-WATER INJECTED TORQUE MONSTER Gtm 370z twin turbo transformation 548rwhp 486rwtq @ 11 psi However, this is probably the most I've seen from a VQ37 stock block: GT Motorsports: GTM Stage 2 TT G37 Coupe, GTM 3" Cat-Back, GTM Flash, 611RWHP/474RWTQ __________________ Last edited by DIGItonium; 08-07-2011 at 11:58 AM.

08-07-2011, 04:16 PM	#1540 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	ifit's just vq37's then there was the g37 gtm did that was dyno'd at like 700 or 800 something, the last shop car __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

07-18-2011, 05:29 PM	#1535 (permalink)
Ron A True Z Fanatic Join Date: Oct 2010 Location: Houston, TX Posts: 3,009 Drives: TT '11 PW Nismo #113 Rep Power: 22	Me too... I need to talk to you about that JB, can u pm me your number?

08-07-2011, 06:11 PM	#1541 (permalink)
christian370z A True Z Fanatic Join Date: Jul 2010 Location: Newport Beach Posts: 3,900 Drives: 2010 370Z/Saab 900se Rep Power: 432	The power and torque curves look identical even as the boost goes up, hp is still climbing at the end of every run regardless of the psi being run which is pretty impressive. __________________ -320whp / 259wftlbs- SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob

08-07-2011, 06:41 PM	#1543 (permalink)
christian370z A True Z Fanatic Join Date: Jul 2010 Location: Newport Beach Posts: 3,900 Drives: 2010 370Z/Saab 900se Rep Power: 432	I bet that has a lot to do with VVEL, especially as it applies to supercharged setups. But I guess that is just speculative until some real world results from GTM come out, it will be very interested to see what kind of gains cracking VVEL will give not only to FI guys but also N/A setups. __________________ -320whp / 259wftlbs- SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob

08-07-2011, 07:02 PM	#1544 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	Holy crap... I wonder how GTM is doing with the intake manifold and collector. After watching this video... I can't imagine simply slapping this thing onto our engines O_o __________________

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