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

bullitt5897 · 02-07-2011, 04:34 PM

I responded on your thread equinox

bullitt5897 · 02-07-2011, 08:23 PM

The stock one will work with mild applications. However, when pushing higher boost pressures the stock unit was not designed for it becomes terribly inefficient and there for we took on the GTR intake manifold as a readily available solution that not only looks great but was designed with FI in mind. The lower intake manifold is simply to allow the VQ motor to mount the GTR intake manifold seeing as the runner positions are reversed. GTM has taken into consideration their own improvements and what performance they would like to see out of this unit.

Mike

Jordo! · 02-07-2011, 10:59 PM

^^^ Hmmm. Bigger diameter but shorter runners would really allow it to breathe while also raising where peak torque is made. In conjunction with a VVEL controller to maintain low speed torque with the new set up, this could really be an awesome NA mod...

I was playing with this calculator

http://www.wallaceracing.com/runnertorquecalc.php

Supposedly the engine makes peak torque at 5.2K RPM. Assuming the displacement is 225 ci (is that correct?), am I right that the stock IM has an Intake runner area around 2.21 sq inches and length around 16.15 inches long (from valve head to plenum).

If so, it would be cool to raise peak torque up around 6000 -- that would seriously raise peak power potnetial -- awesome for all out drag cars, but good for the street too, especially if VVEL can maintain low speed torque.

According to the calculator, for peak torque at 6K:

Optimum Intake runner area 2.55 square inches (calculated)
Optimum Intake Length 14.00 inches long (from valve head to plenum).

DIGItonium · 02-08-2011, 12:00 AM

Just to double-check, is this plastic design chosen for economical purpose as well? IIRC, a brand new VR38 lower intake manifold runs for around $500. I wonder if a group buy would help cope with the development costs.

Also, assuming we'll be using the standard VQ37 gasket for the manifold to meet with the head and VR38 gasket for the intake plenum. Are there benefits to using a thermal gasket?

RCZ · 02-08-2011, 10:31 AM

Damn, impressive GTM. This is at another level! It's pretty amazing to see this kind of technology, granted it has become more accessible as of late, being used in the development of products for this market range. Big thumbs up.

What's next? fluid dynamics? gonna get adrian newey to design a body kit?

Z eliminator · 02-08-2011, 10:54 AM

Sounds great , now add the Motordyne intake manifold with the VVEL and the N/A car would really haul. The Motordyne work very well on my car.

Z

Vegitto-kun · 02-08-2011, 04:09 PM

Quote:

Originally Posted by Z eliminator

Sounds great , now add the Motordyne intake manifold with the VVEL and the N/A car would really haul. The Motordyne work very well on my car.

Z

why the motordyne intake. the GT-R one is probably better.

Il say it again I hope that the car is still at GTM around june/july so I cant see it

Flyboy · 02-08-2011, 07:16 PM

Quote:

Originally Posted by Z eliminator

Sounds great , now add the Motordyne intake manifold with the VVEL and the N/A car would really haul. The Motordyne work very well on my car.

Z

that won't work. The purpose of this piece is to allow the GTR upper to fit.

shumby · 02-08-2011, 10:58 AM

^^^^ shut it you N/A SC wantabe. lol

Sibze · 02-08-2011, 10:59 AM

Quote:

Originally Posted by shumby

^^^^ shut it you N/A SC wantabe. lol

Your cool

shumby · 02-08-2011, 11:07 AM

lol. i am just picking on elim. he knowes me

Z eliminator · 02-08-2011, 11:13 AM

Let the truth me spoken " Shumby if you ever get to go for a ride in my N/A 370 with Bolts ons it would give your G a run for its life in the 1/4 mile. "
Ask Sizbe what my car runs like ask him to show you the video of me and 550 rwhp SC mustang.
Now if your wife drove the car she would give me a better run.
Your best friend z.

shumby · 02-08-2011, 11:29 AM

lol. i got nothing for that. lol

bullitt5897 · 02-08-2011, 12:37 PM

ohhhhh you guys.... LMAO

Z eliminator · 02-08-2011, 06:52 PM

Because i have one, and i want to see how it works with the SC.

02-07-2011, 04:34 PM	#1 (permalink)
bullitt5897 Premium Member Join Date: Jan 2009 Location: North GA Posts: 6,831 Drives: Twin Turbo Z34 Rep Power: 3684	I responded on your thread equinox __________________ *Shop Cars: 2013 318whp Nismo VspecII 370z SOLD, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054*

02-07-2011, 08:23 PM	#2 (permalink)
bullitt5897 Premium Member Join Date: Jan 2009 Location: North GA Posts: 6,831 Drives: Twin Turbo Z34 Rep Power: 3684	The stock one will work with mild applications. However, when pushing higher boost pressures the stock unit was not designed for it becomes terribly inefficient and there for we took on the GTR intake manifold as a readily available solution that not only looks great but was designed with FI in mind. The lower intake manifold is simply to allow the VQ motor to mount the GTR intake manifold seeing as the runner positions are reversed. GTM has taken into consideration their own improvements and what performance they would like to see out of this unit. Mike __________________ *Shop Cars: 2013 318whp Nismo VspecII 370z SOLD, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054*

02-07-2011, 10:59 PM	#3 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 420	^^^ Hmmm. Bigger diameter but shorter runners would really allow it to breathe while also raising where peak torque is made. In conjunction with a VVEL controller to maintain low speed torque with the new set up, this could really be an awesome NA mod... I was playing with this calculator http://www.wallaceracing.com/runnertorquecalc.php Supposedly the engine makes peak torque at 5.2K RPM. Assuming the displacement is 225 ci (is that correct?), am I right that the stock IM has an Intake runner area around 2.21 sq inches and length around 16.15 inches long (from valve head to plenum). If so, it would be cool to raise peak torque up around 6000 -- that would seriously raise peak power potnetial -- awesome for all out drag cars, but good for the street too, especially if VVEL can maintain low speed torque. According to the calculator, for peak torque at 6K: Optimum Intake runner area 2.55 square inches (calculated) Optimum Intake Length 14.00 inches long (from valve head to plenum). __________________ Enjoy it. Destroy it. Last edited by Jordo!; 02-07-2011 at 11:13 PM.

02-08-2011, 12:00 AM	#4 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 44	Just to double-check, is this plastic design chosen for economical purpose as well? IIRC, a brand new VR38 lower intake manifold runs for around $500. I wonder if a group buy would help cope with the development costs. Also, assuming we'll be using the standard VQ37 gasket for the manifold to meet with the head and VR38 gasket for the intake plenum. Are there benefits to using a thermal gasket? __________________

02-08-2011, 10:54 AM	#6 (permalink)
Z eliminator A True Z Fanatic Join Date: Jul 2009 Location: Ontario Canada Posts: 1,660 Drives: 370 Z 7AT Sports Rep Power: 20	Sounds great , now add the Motordyne intake manifold with the VVEL and the N/A car would really haul. The Motordyne work very well on my car. Z __________________ 12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015.

02-08-2011, 10:31 AM	#5 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1120	Damn, impressive GTM. This is at another level! It's pretty amazing to see this kind of technology, granted it has become more accessible as of late, being used in the development of products for this market range. Big thumbs up. What's next? fluid dynamics? gonna get adrian newey to design a body kit?

02-08-2011, 10:58 AM	#9 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 46 Posts: 6,288 Drives: your sister Rep Power: 238	^^^^ shut it you N/A SC wantabe. lol __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

02-08-2011, 11:07 AM	#11 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 46 Posts: 6,288 Drives: your sister Rep Power: 238	lol. i am just picking on elim. he knowes me __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

02-08-2011, 11:13 AM	#12 (permalink)
Z eliminator A True Z Fanatic Join Date: Jul 2009 Location: Ontario Canada Posts: 1,660 Drives: 370 Z 7AT Sports Rep Power: 20	Let the truth me spoken " Shumby if you ever get to go for a ride in my N/A 370 with Bolts ons it would give your G a run for its life in the 1/4 mile. " Ask Sizbe what my car runs like ask him to show you the video of me and 550 rwhp SC mustang. Now if your wife drove the car she would give me a better run. Your best friend z. __________________ 12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015. Last edited by Z eliminator; 02-08-2011 at 06:51 PM.

02-08-2011, 11:29 AM	#13 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 46 Posts: 6,288 Drives: your sister Rep Power: 238	lol. i got nothing for that. lol __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

02-08-2011, 12:37 PM	#14 (permalink)
bullitt5897 Premium Member Join Date: Jan 2009 Location: North GA Posts: 6,831 Drives: Twin Turbo Z34 Rep Power: 3684	ohhhhh you guys.... LMAO __________________ *Shop Cars: 2013 318whp Nismo VspecII 370z SOLD, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054*

02-08-2011, 06:52 PM	#15 (permalink)
Z eliminator A True Z Fanatic Join Date: Jul 2009 Location: Ontario Canada Posts: 1,660 Drives: 370 Z 7AT Sports Rep Power: 20	Because i have one, and i want to see how it works with the SC. __________________ 12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015.

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