DIY GTM Twin Turbo Stage 2 Install!!

spearfish25 · 02-21-2010, 09:25 AM

Very impressive. I'd have two problems if I did that myself. 1) I would get impatient and starting trying to get it done faster. This would lead to disaster. 2) I wouldn't know how to properly troubleshoot any turbo issues once I was done. Having no one in Chicago that I could trust to fix it, which would lead to further disaster.

Zguy · 02-21-2010, 10:44 AM

Yea I woudlnt be too excited about having to drill and tap my heads.... I dont like that AT ALL .... everything else is cheap to replace IE the oil pan... and you cant really mess up the taps in the plenum.... I dont think I will go with the GTM Kit later because of that.... Im not feeling paying 3k for the install then another 1k for shipping the car there and back... I dunno... murphys law seems to follow me... If the heads can be cracked or compromised in some way it would happen to me..... I hope the greddy kit doesnt require drilling and tapping the heads....

SAM@GTM · 02-21-2010, 01:02 PM

Quote:

Originally Posted by Zguy

Yea I woudlnt be too excited about having to drill and tap my heads.... I dont like that AT ALL .... everything else is cheap to replace IE the oil pan... and you cant really mess up the taps in the plenum.... I dont think I will go with the GTM Kit later because of that.... Im not feeling paying 3k for the install then another 1k for shipping the car there and back... I dunno... murphys law seems to follow me... If the heads can be cracked or compromised in some way it would happen to me..... I hope the greddy kit doesnt require drilling and tapping the heads....

Over a year ago we discovered that Nissan for no real apparent reason that we can see introduce a new cylinder Head casting, So we went ahead and made a new set of tooling and casted and a new turbo manifold for that reason for one side only . to make things a little easier.

Sam

2fast4thelaw · 02-21-2010, 01:27 PM

Really guys? tapping aluminum is not a big deal. I do not recommend using taps from Harbor frieght Tools for something like this. A high quality tap will cut much cleaner threads and make the job easier. You may have to spend 10 bucks per tap but its worth it. The best place to get good taps or high quality machine toos is here: McMaster-Carr I used to buy all of my hardware, drill bits, taps, and mill bits from them.

My opinion of the self install is that you will gain an intimate understanding of how this system works when installing it yourself and if a leak or issue arises you at least know what your doing to resolve it yourself. At least here you dont have to fabricate anything.

In hobby projects that I typically do I have to design and fabricate my own parts using machine shop tools. From what I see this isnt too bad and to save a few grand on install labor. I am there!! I also want the install DVD video GTM is making.

I do have a question for Modme: How come you didnt install an oil cooler?

SAM@GTM · 02-21-2010, 01:31 PM

Jason did a real good job on his DYI, especially for someone doing this in his own house on his back. I remember calling him every couple days to check on him sense i have not heard from him and he kept saying I'm just following the instruction... so far so good .

We took a lot of time making the instruction with a lot of detailed info and pics so Jason doing this him self was the ultimate test for our product and instruction combined

here a link to the instruction just in case you guys are motivated to do this

http://www.gtmotorsports.com/Manuals..._G37_Coupe.pdf

Sam

2fast4thelaw · 02-21-2010, 01:41 PM

I have been following your thread on the supercharger for the 370 but I am most likely going to go this route and do what Jason did.

modme · 02-21-2010, 02:09 PM

Quote:

Originally Posted by 2fast4thelaw

I have been following your thread on the supercharger for the 370 but I am most likely going to go this route and do what Jason did.

Totally go for it. When you are doing a spirited run, knowing that you made it all happen, makes it 100x more fun. And when something does go wrong, you know exactly how to fix the problem.

modme · 02-21-2010, 02:11 PM

Quote:

Originally Posted by 2fast4thelaw

Really guys? tapping aluminum is not a big deal. I do not recommend using taps from Harbor frieght Tools for something like this. A high quality tap will cut much cleaner threads and make the job easier. You may have to spend 10 bucks per tap but its worth it. The best place to get good taps or high quality machine toos is here: McMaster-Carr I used to buy all of my hardware, drill bits, taps, and mill bits from them.

My opinion of the self install is that you will gain an intimate understanding of how this system works when installing it yourself and if a leak or issue arises you at least know what your doing to resolve it yourself. At least here you dont have to fabricate anything.

In hobby projects that I typically do I have to design and fabricate my own parts using machine shop tools. From what I see this isnt too bad and to save a few grand on install labor. I am there!! I also want the install DVD video GTM is making.

I do have a question for Modme: How come you didnt install an oil cooler?

Oil cooler is something that I will look into. I dont track my car or anything and oil temp has not been an issue for me.

LiquidZ · 02-21-2010, 04:26 PM

Quote:

Originally Posted by modme

I do have a question about this tap on the passenger side turbo. Is the tap supposed to stick up like this? This is as far as it goes. Maybe Tainui or Sam can chime in?

Modme, did you ever resolve this issue? That doesn't look right.

modme · 02-21-2010, 04:50 PM

It was fine. As long as you tighten the bolt as much as you can, it will seal. No oil leaks.

Zguy · 02-21-2010, 07:57 PM

Sam, Are you saying there is no need for drilling and tapping the head now? Im just trying to understand why the manifold wouldnt line up on the existing header bolts to begin with?

SAM@GTM · 02-22-2010, 03:21 AM

Quote:

Originally Posted by Zguy

Sam, Are you saying there is no need for drilling and tapping the head now? Im just trying to understand why the manifold wouldnt line up on the existing header bolts to begin with?

The manifolds always lined up, that was not the problem, Nissan changed the casting of the heads . so you could not install the stud sense there was no pretapped hole there .

And yes there is no need for drilling and tapping the head now

Sam

Zguy · 02-22-2010, 06:56 PM

Thank you sir

JB-370z · 03-06-2010, 03:43 PM

modme do you have an update on how the car is running???? I would love some final pics and vids! It does not look like you have an probs with posting media some vids would rock for sure. There are not many vids of this kit. I am sure you would get rep points out the butt for that. Thanks for everything else thoguh!

LiquidZ · 03-08-2010, 08:03 AM

I'm with JB on this one. Any issues?

02-21-2010, 09:25 AM	#31 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	Very impressive. I'd have two problems if I did that myself. 1) I would get impatient and starting trying to get it done faster. This would lead to disaster. 2) I wouldn't know how to properly troubleshoot any turbo issues once I was done. Having no one in Chicago that I could trust to fix it, which would lead to further disaster. __________________ 2013 Cadillac V-Wagon, RIP Z

02-21-2010, 01:27 PM	#34 (permalink)
2fast4thelaw Enthusiast Member Join Date: Feb 2009 Location: Denver Co Age: 50 Posts: 403 Drives: 09 370Z Sport/MT6 Rep Power: 16	Really guys? tapping aluminum is not a big deal. I do not recommend using taps from Harbor frieght Tools for something like this. A high quality tap will cut much cleaner threads and make the job easier. You may have to spend 10 bucks per tap but its worth it. The best place to get good taps or high quality machine toos is here: McMaster-Carr I used to buy all of my hardware, drill bits, taps, and mill bits from them. My opinion of the self install is that you will gain an intimate understanding of how this system works when installing it yourself and if a leak or issue arises you at least know what your doing to resolve it yourself. At least here you dont have to fabricate anything. In hobby projects that I typically do I have to design and fabricate my own parts using machine shop tools. From what I see this isnt too bad and to save a few grand on install labor. I am there!! I also want the install DVD video GTM is making. I do have a question for Modme: How come you didnt install an oil cooler? __________________ To the optimist, the glass is half full. To the pessimist, the glass is half empty. To the engineer, the glass is twice as big as it needs to be.

02-21-2010, 01:41 PM	#36 (permalink)
2fast4thelaw Enthusiast Member Join Date: Feb 2009 Location: Denver Co Age: 50 Posts: 403 Drives: 09 370Z Sport/MT6 Rep Power: 16	I have been following your thread on the supercharger for the 370 but I am most likely going to go this route and do what Jason did. __________________ To the optimist, the glass is half full. To the pessimist, the glass is half empty. To the engineer, the glass is twice as big as it needs to be.

03-06-2010, 03:43 PM	#44 (permalink)
JB-370z A True Z Fanatic Join Date: Apr 2009 Location: Houston, Tx Posts: 1,859 Drives: Stage 2 Twin Turbos Rep Power: 19	modme do you have an update on how the car is running???? I would love some final pics and vids! It does not look like you have an probs with posting media some vids would rock for sure. There are not many vids of this kit. I am sure you would get rep points out the butt for that. Thanks for everything else thoguh! __________________ ll Baker Tuning ll GTM ll Powerhouse Amuse ll HKS ll Up-Rev ll iForged ll AP Racing ll Pioneer ll SPL ll Bride ll Top Secret ll OS Giken ll GTM Stage 2 Twin Turboed 370z (First in Texas, Thanks To Baker Tuning)

03-08-2010, 08:03 AM	#45 (permalink)
LiquidZ A True Z Fanatic Join Date: Nov 2008 Location: Columbus, OH Posts: 1,940 Drives: Mag. Black 2009 370Z Rep Power: 705	I'm with JB on this one. Any issues? __________________ Last edited by LiquidZ; 03-08-2010 at 08:13 AM.

02-21-2010, 10:44 AM	#32 (permalink)
Zguy Base Member Join Date: Nov 2008 Location: Fort Worth Posts: 153 Drives: 05 Chrome Silver Rep Power: 17	Yea I woudlnt be too excited about having to drill and tap my heads.... I dont like that AT ALL .... everything else is cheap to replace IE the oil pan... and you cant really mess up the taps in the plenum.... I dont think I will go with the GTM Kit later because of that.... Im not feeling paying 3k for the install then another 1k for shipping the car there and back... I dunno... murphys law seems to follow me... If the heads can be cracked or compromised in some way it would happen to me..... I hope the greddy kit doesnt require drilling and tapping the heads....

02-21-2010, 01:31 PM	#35 (permalink)
SAM@GTM NOT AN ACTIVE SPONSOR. DO NOT BUY Join Date: Dec 2008 Location: CALIFORNIA Posts: 913 Drives: 370Z Rep Power: 18	Jason did a real good job on his DYI, especially for someone doing this in his own house on his back. I remember calling him every couple days to check on him sense i have not heard from him and he kept saying I'm just following the instruction... so far so good . We took a lot of time making the instruction with a lot of detailed info and pics so Jason doing this him self was the ultimate test for our product and instruction combined here a link to the instruction just in case you guys are motivated to do this http://www.gtmotorsports.com/Manuals..._G37_Coupe.pdf Sam

02-21-2010, 04:50 PM	#40 (permalink)
modme Enthusiast Member Join Date: Mar 2009 Location: NY Posts: 345 Drives: G37 Rep Power: 16	It was fine. As long as you tighten the bolt as much as you can, it will seal. No oil leaks.

02-21-2010, 07:57 PM	#41 (permalink)
Zguy Base Member Join Date: Nov 2008 Location: Fort Worth Posts: 153 Drives: 05 Chrome Silver Rep Power: 17	Sam, Are you saying there is no need for drilling and tapping the head now? Im just trying to understand why the manifold wouldnt line up on the existing header bolts to begin with?

02-22-2010, 06:56 PM	#43 (permalink)
Zguy Base Member Join Date: Nov 2008 Location: Fort Worth Posts: 153 Drives: 05 Chrome Silver Rep Power: 17	Thank you sir

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