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

Mike@GTM · 02-03-2011, 01:10 PM

Here's an update on our intake manifold. We've been working with a Rapid Prototyping company, and it's taking a little longer than we anticipated. Nevertheless, here are some images generated from the scanning software. One of the biggest advantages of this process is the ability to verify air flow through the intake and make any necessary changes to the design in CAD to eliminate any restrictions. The design has been finalized and is being "grown" as we speak. According to the company we are working with, we should have the prototype in hand next week. At that time, we will be test fitting the lower manifold in conjunction with the GT-R upper intake plenum and performing some initial dyno testing to verify the design.

Some of you familiar with rapid prototyping have suggested growing the part in titanium. Unfortunately, this part is physically too large to print using an iterative metal laser sintering process. Not to mention that even if their "printer" was large enough, it would take over a month just to print! Given that people want to see this car finished, we found the timeframe unacceptable. Therefore, we will be using a new type of high temperature plastic developed to be tested in harsh operating conditions (such as a forced induction manifold). Although we were skeptical of using plastic on this part of the engine, the material specifications convinced us that it is well within operating parameters.

We have several cars that we will be testing this manifold setup on: a stock 370z (to see what effect this manifold has on an NA application), a GTM supercharged 370z, and of course the White Dragon. Given that we can make adjustments to things like runner diameter and length in CAD, we can fine tune the performance to suit the particular application.

Also, it has been our experience that the factory HR/VHR upper intake plenum starts having issues with over 15psi of boost and 700whp (afterall it was designed for an NA application). Using our lower intake plenum in conjunction with the GT-R upper intake plenum will allow for more boost and more power.

Enough technobabble, here are some pics:

toner123 · 02-03-2011, 01:22 PM

What is the price on this thing going to cost. Like I am sure by now you are aware of how much it is costing to make so that should allow you to give us a ballpark figurefor us.
Frank

Jordo! · 02-07-2011, 05:31 PM

Quote:

Originally Posted by Mike@GTM

Here's an update on our intake manifold. We've been working with a Rapid Prototyping company, and it's taking a little longer than we anticipated. Nevertheless, here are some images generated from the scanning software. One of the biggest advantages of this process is the ability to verify air flow through the intake and make any necessary changes to the design in CAD to eliminate any restrictions. The design has been finalized and is being "grown" as we speak. According to the company we are working with, we should have the prototype in hand next week. At that time, we will be test fitting the lower manifold in conjunction with the GT-R upper intake plenum and performing some initial dyno testing to verify the design.

Some of you familiar with rapid prototyping have suggested growing the part in titanium. Unfortunately, this part is physically too large to print using an iterative metal laser sintering process. Not to mention that even if their "printer" was large enough, it would take over a month just to print! Given that people want to see this car finished, we found the timeframe unacceptable. Therefore, we will be using a new type of high temperature plastic developed to be tested in harsh operating conditions (such as a forced induction manifold). Although we were skeptical of using plastic on this part of the engine, the material specifications convinced us that it is well within operating parameters.

We have several cars that we will be testing this manifold setup on: a stock 370z (to see what effect this manifold has on an NA application), a GTM supercharged 370z, and of course the White Dragon. Given that we can make adjustments to things like runner diameter and length in CAD, we can fine tune the performance to suit the particular application.

Also, it has been our experience that the factory HR/VHR upper intake plenum starts having issues with over 15psi of boost and 700whp (afterall it was designed for an NA application). Using our lower intake plenum in conjunction with the GT-R upper intake plenum will allow for more boost and more power.

Enough technobabble, here are some pics:

What sorts of changes are you guys looking to make? Is the goal to raise peak torque higher in the RPM range? It would be awesome if you could keep it flat after 5500 RPM where it really starts to plummet.

toner123 · 02-07-2011, 07:52 PM

Quote:

Originally Posted by Jordo!

What sorts of changes are you guys looking to make? Is the goal to raise peak torque higher in the RPM range? It would be awesome if you could keep it flat after 5500 RPM where it really starts to plummet.

Well isn't the purpose of that to allow for the GTR manifold to be fited on? I know the reason there going with the GTR one is because the stock one they feel wont be able to handle the boost pressure, atleast thats what i got out of it.

JB1 · 02-03-2011, 01:20 PM

Why not have the part casted in Aluminum? I know a few suppliers in Europe that can do rapid casting. Lead time of about 3 or 4 weeks.

christian370z · 02-03-2011, 02:34 PM

This update just made my day Mike, thank you very much for the update. I cannot wait to see how this manifold plays on a N/A VQ37, hoping for some solid gains!

bullitt5897 · 02-03-2011, 03:02 PM

Another update:

I picked up a daily driver yesterday

a flat black 2008 WRX STI 5DR with now 30K miles and bronze prodrive 19" wheels:

JB-370z · 02-03-2011, 04:03 PM

Quote:

Originally Posted by Bullitt@UAMotorsports

Another update:

I picked up a daily driver yesterday

a flat black 2008 WRX STI 5DR with now 30K miles and bronze prodrive 19" wheels:

So do you already have a mod list put together for the DD? I just picked up a 1996 240sx for DD and I will get a FT-86 for my newest DD when they come out

Mike · 02-03-2011, 06:02 PM

Quote:

Originally Posted by Bullitt@UAMotorsports

Another update:

I picked up a daily driver yesterday

a flat black 2008 WRX STI 5DR with now 30K miles and bronze prodrive 19" wheels:

Me like!!!!!!!!

Vegitto-kun · 02-03-2011, 03:04 PM

you have too much money man.

this build + that car.

wishihadnav · 02-03-2011, 03:20 PM

nice mike!..i see a rotated 35r in your future..haha

bullitt5897 · 02-03-2011, 03:38 PM

Quote:

Originally Posted by wishihadnav

nice mike!..i see a rotated 35r in your future..haha

hahaha that a cheap upgrade too!

wishihadnav · 02-03-2011, 03:49 PM

Perrin Performance - Rotated Turbo GT3582R Kit

with front mount, injectors, walbro and tune..haha

toner123 · 02-03-2011, 04:11 PM

man you guys are ballers. Wish I had the money you guys did

Mike@GTM · 02-03-2011, 04:39 PM

Here are the final prototype drawings:

Nice STi Mike!

02-03-2011, 01:20 PM	#5 (permalink)
JB1 Track Member Join Date: Mar 2009 Location: Chicagoland Posts: 748 Drives: 09 Nissan 370Z sold Rep Power: 18	Why not have the part casted in Aluminum? I know a few suppliers in Europe that can do rapid casting. Lead time of about 3 or 4 weeks. __________________ Black Fangs // Black rear Valance // Berk CBE // COBB post MAF tubes // K&N drop in filters // Setrab Oil Cooler // Stillen Sway bars // Z1 SS brake lines // Stillen brake cooling kit // Harness bar //

02-03-2011, 02:34 PM	#6 (permalink)
christian370z A True Z Fanatic Join Date: Jul 2010 Location: Newport Beach Posts: 3,900 Drives: 2010 370Z/Saab 900se Rep Power: 433	This update just made my day Mike, thank you very much for the update. I cannot wait to see how this manifold plays on a N/A VQ37, hoping for some solid gains! __________________ -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

02-03-2011, 03:02 PM	#7 (permalink)
bullitt5897 Premium Member Join Date: Jan 2009 Location: North GA Posts: 6,831 Drives: Twin Turbo Z34 Rep Power: 3683	Another update: I picked up a daily driver yesterday a flat black 2008 WRX STI 5DR with now 30K miles and bronze prodrive 19" wheels: __________________ *Shop Cars: 2013 318whp Nismo VspecII 370z SOLD, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054*

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02-03-2011, 01:10 PM	#1 (permalink)
Mike@GTM Not an active Vendor. DO NOT BUY Join Date: Sep 2009 Location: California Posts: 391 Drives: '13 Hot Lava FR-S Rep Power: 17	Here's an update on our intake manifold. We've been working with a Rapid Prototyping company, and it's taking a little longer than we anticipated. Nevertheless, here are some images generated from the scanning software. One of the biggest advantages of this process is the ability to verify air flow through the intake and make any necessary changes to the design in CAD to eliminate any restrictions. The design has been finalized and is being "grown" as we speak. According to the company we are working with, we should have the prototype in hand next week. At that time, we will be test fitting the lower manifold in conjunction with the GT-R upper intake plenum and performing some initial dyno testing to verify the design. Some of you familiar with rapid prototyping have suggested growing the part in titanium. Unfortunately, this part is physically too large to print using an iterative metal laser sintering process. Not to mention that even if their "printer" was large enough, it would take over a month just to print! Given that people want to see this car finished, we found the timeframe unacceptable. Therefore, we will be using a new type of high temperature plastic developed to be tested in harsh operating conditions (such as a forced induction manifold). Although we were skeptical of using plastic on this part of the engine, the material specifications convinced us that it is well within operating parameters. We have several cars that we will be testing this manifold setup on: a stock 370z (to see what effect this manifold has on an NA application), a GTM supercharged 370z, and of course the White Dragon. Given that we can make adjustments to things like runner diameter and length in CAD, we can fine tune the performance to suit the particular application. Also, it has been our experience that the factory HR/VHR upper intake plenum starts having issues with over 15psi of boost and 700whp (afterall it was designed for an NA application). Using our lower intake plenum in conjunction with the GT-R upper intake plenum will allow for more boost and more power. Enough technobabble, here are some pics:

02-03-2011, 01:22 PM	#2 (permalink)
toner123 Track Member Join Date: May 2010 Location: chesapeake va Age: 40 Posts: 823 Drives: TT 370z Touring/SP Rep Power: 17	What is the price on this thing going to cost. Like I am sure by now you are aware of how much it is costing to make so that should allow you to give us a ballpark figurefor us. Frank

02-03-2011, 03:04 PM	#10 (permalink)
Vegitto-kun A True Z Fanatic Join Date: Feb 2010 Location: USA Posts: 2,011 Drives: 09 370Z Rep Power: 263	you have too much money man. this build + that car.

02-03-2011, 03:20 PM	#11 (permalink)
wishihadnav A True Z Fanatic Join Date: Nov 2009 Location: 90090 Posts: 1,851 Drives: Force Fed Nismo Rep Power: 184	nice mike!..i see a rotated 35r in your future..haha

02-03-2011, 03:49 PM	#13 (permalink)
wishihadnav A True Z Fanatic Join Date: Nov 2009 Location: 90090 Posts: 1,851 Drives: Force Fed Nismo Rep Power: 184	Perrin Performance - Rotated Turbo GT3582R Kit with front mount, injectors, walbro and tune..haha

02-03-2011, 04:11 PM	#14 (permalink)
toner123 Track Member Join Date: May 2010 Location: chesapeake va Age: 40 Posts: 823 Drives: TT 370z Touring/SP Rep Power: 17	man you guys are ballers. Wish I had the money you guys did

02-03-2011, 04:39 PM	#15 (permalink)
Mike@GTM Not an active Vendor. DO NOT BUY Join Date: Sep 2009 Location: California Posts: 391 Drives: '13 Hot Lava FR-S Rep Power: 17	Here are the final prototype drawings: Nice STi Mike!