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.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
GTM Performance Engineering 370Z SUPERCHARGER KIT PRESS RELEASE	SAM@GTM	Forced Induction	1161	02-16-2014 08:21 PM
GTM Performance Engineering Stage 1 Turn key Supercharger kit In house Install II.	SAM@GTM	Forced Induction	254	08-11-2010 10:59 AM
GTM Performance Engineering & Forged Performance	azn370z	Forced Induction	59	04-14-2010 12:07 AM

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: 16	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