Another DIY Twin Turbo kit (COMP oil-less turbos)

Rusty · 11-19-2014, 06:32 AM

Quote:

Originally Posted by thangcu35

Thanks for the great advices. Ill be pressure testing them using one of the turbo leak tester and submerge the ic under water.

Regarding the turbo, i also asked the comp turbo tech that same question. They told me that it does evaporate very slowly (didnt specify through where). They said every 3000-5000 miles just use a grease gun and pump about 3-4 times and thats more than enough to keep it full. The grease fitting looks like its removable.

A lot of the equipment I work on has a grease fitting on one side and a plug on the other side. Remove the plug and grease through the fitting. When grease comes out of the plug hole. You're done. Run equipment until it gets hot with the plug remove. Shut down and install plug. This way no grease is being forced past the seals when the grease gets hot. Also I never knew that grease evaporates. It just turns to wax with heat in my experience.

Wish you luck with your project. Can't wait to see it come to life.

Tadpole · 11-19-2014, 05:46 AM

Sub'd.

6MT-Z34 · 11-19-2014, 07:18 AM

Nice!! but your missing the gray mirrors for your '14 theme lol jp...sweet looking car and best of luck with your build, keep us updated!

Luciano13 · 11-23-2014, 04:05 PM

Sub'D for everything!!!

thangcu35 · 12-02-2014, 08:14 PM

Back on track, I started working on mounting turbos. Knowing that the driver side will be most difficult due to limited space, I decided to tackle that first. After 6 hours worth of busting and cussing, using sharpies, duck tapes, and with a little bit of luck I managed to get the turbo to about where I want it to be (it was not easy with the car up on jackstands instead of a lift). I was careful not to place the turbo too low, while leaving enough space in the front for air filters. My concern is the wastegate actuator being the lowest point.

Decided to go with Tial Q BOV's instead of Synchronic.

Tacked the extension pipe

Turbos sat up as high as it will go, 1/2" clearance from frame and transmission.

I am working on modifying the wastegate actuator bracket to allow more ground clearance.

Boosted Performance · 11-19-2014, 09:22 AM

Looking forward to this build...I think I know exactly how this will be plumbed (I have done the same on a VQ35DE a long time ago).

The only thing I would do differently is the selection of the turbine housings. You will find that the .64 T25's have a very low flow limit. They will be efficient (EBP less than 2:1) up to 500whp, but after that they will become a bit of a restriction.

I also talked to the guys at COMP at SEMA a couple of weeks ago about the greasing of these turbos. And like Rusty, I had the same questions, where does the grease go. I thought that 3-4 pumps of grease is actually a lot for such a small centre section. If I was to guess, I would have thought 1-2 pump worth of grease per oil change would have been sufficient.

Nixlimited · 11-19-2014, 05:35 PM

Look forward to seeing results of another homebrew kit.

thangcu35 · 11-22-2014, 03:12 PM

If i decide on adding one, ill put it behind the right IC. Do i need one if the car is not going to be tracked?

Rusty · 11-22-2014, 03:26 PM

Yea you do. With the heat from the extra power, and where you live. A 34 row unit.

TerribleONE · 11-23-2014, 04:14 PM

Oil cooler is a must!

swiss370Z · 11-24-2014, 12:18 PM

Quote:

Originally Posted by TerribleONE

Oil cooler is a must!

I'm only supercharged
But is "A MUST"

Luciano13 · 11-24-2014, 03:14 PM

jwick · 11-24-2014, 03:48 PM

I'll jump on the cooler bandwagon. I can spike oil temps 30deg just with a few good boosted pulls on the freeway. That's with an oil pan spacer and 30 row cooler. Temps max out around 210-215degC so no high heat issues but I can only imagine the temps I'd see without the cooler and 8.5qrts of oil cycling.

1slow370 · 11-24-2014, 04:07 PM

well he may have a slight difference in oil temps due to not having oil circulated through his turbos. but yeah the car still needs at least a small cooler.

Edit: Except mine I need to remove my cooler. Dry sump + 12.5qts

thangcu35 · 11-24-2014, 09:53 PM

I will definitely go with a 30+ rows thermostatic cooler eventually. Looks like there will be no update from me for a week since I will be out of town. Happy early Thanksgiving everyone

11-19-2014, 05:46 AM	#2 (permalink)
Tadpole A True Z Fanatic Join Date: Sep 2013 Location: Lockhart, TX Posts: 1,082 Drives: 13 Nissan 370Z A7 Rep Power: 18	Sub'd. __________________ Takeda TR3009P Short Ram Intakes, Custom Dual Exhaust, X-Piped with 18" Resonators & TopSpeed Axle Backs. EVO-R Led Third Foglight,

11-23-2014, 04:05 PM	#4 (permalink)
Luciano13 A True Z Fanatic Join Date: Mar 2013 Location: Canada Posts: 2,130 Drives: 2016 Solid Redz Rep Power: 246	Sub'D for everything!!! __________________ http://www.the370z.com/members-370z-...lid-red-z.html

12-02-2014, 08:14 PM	#5 (permalink)
thangcu35 Base Member Join Date: Mar 2014 Location: Fayetteville, NC Posts: 97 Drives: '12 Sport/Tour/Nav Rep Power: 16	Back on track, I started working on mounting turbos. Knowing that the driver side will be most difficult due to limited space, I decided to tackle that first. After 6 hours worth of busting and cussing, using sharpies, duck tapes, and with a little bit of luck I managed to get the turbo to about where I want it to be (it was not easy with the car up on jackstands instead of a lift). I was careful not to place the turbo too low, while leaving enough space in the front for air filters. My concern is the wastegate actuator being the lowest point. Decided to go with Tial Q BOV's instead of Synchronic. Tacked the extension pipe Turbos sat up as high as it will go, 1/2" clearance from frame and transmission. I am working on modifying the wastegate actuator bracket to allow more ground clearance. Infiniti370z, SS_Firehawk, Mbreese and 3 others like this. Last edited by thangcu35; 12-02-2014 at 08:50 PM.

11-19-2014, 09:22 AM	#6 (permalink)
Boosted Performance The370Z.com Sponsor Join Date: Feb 2010 Location: Edmonton, AB Posts: 1,629 Drives: Z's Rep Power: 3383	Looking forward to this build...I think I know exactly how this will be plumbed (I have done the same on a VQ35DE a long time ago). The only thing I would do differently is the selection of the turbine housings. You will find that the .64 T25's have a very low flow limit. They will be efficient (EBP less than 2:1) up to 500whp, but after that they will become a bit of a restriction. I also talked to the guys at COMP at SEMA a couple of weeks ago about the greasing of these turbos. And like Rusty, I had the same questions, where does the grease go. I thought that 3-4 pumps of grease is actually a lot for such a small centre section. If I was to guess, I would have thought 1-2 pump worth of grease per oil change would have been sufficient. __________________ 750WHP starting @ $7,500 to the door FOR DETAILS VISIT: http://www.the370z.com/members/boosted-performance.html FB: https://www.facebook.com/Boosted-Per...6303179791462/ IG @boostedperformanceyeg

11-19-2014, 05:35 PM	#7 (permalink)
Nixlimited A True Z Fanatic Join Date: Aug 2009 Location: San Diego Posts: 1,235 Drives: 15 GT-R / 11 Prius Rep Power: 26	Look forward to seeing results of another homebrew kit. __________________ Car Sold! Pleasure being a part of the Z community. New ride: 2015 GT-R - 647 WHP / 641 WTQ (e85) & 543 WHP / 519 WTQ (91)

11-19-2014, 07:18 AM	#3 (permalink)
6MT-Z34 A True Z Fanatic Join Date: Jan 2013 Location: NJ Posts: 1,726 Drives: PW Z Rep Power: 16	Nice!! but your missing the gray mirrors for your '14 theme lol jp...sweet looking car and best of luck with your build, keep us updated!

11-22-2014, 03:12 PM	#8 (permalink)
thangcu35 Base Member Join Date: Mar 2014 Location: Fayetteville, NC Posts: 97 Drives: '12 Sport/Tour/Nav Rep Power: 16	If i decide on adding one, ill put it behind the right IC. Do i need one if the car is not going to be tracked? Luciano13 likes this.

11-22-2014, 03:26 PM	#9 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 69 Posts: 35,506 Drives: 2011 Nismo GM 6M Rep Power: 2684439	Yea you do. With the heat from the extra power, and where you live. A 34 row unit. DIGItonium, KaienZ34, Dembflyr and 2 others like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

11-23-2014, 04:14 PM	#10 (permalink)
TerribleONE A True Z Fanatic Join Date: Jan 2009 Location: Socal Posts: 10,203 Drives: WOT Rep Power: 5851	Oil cooler is a must! KaienZ34, swiss370Z, GaleForce and 1 others like this. __________________ 638WHP 541WTQ @ 13.5PSI Build thread

11-24-2014, 03:14 PM	#12 (permalink)
Luciano13 A True Z Fanatic Join Date: Mar 2013 Location: Canada Posts: 2,130 Drives: 2016 Solid Redz Rep Power: 246	__________________ http://www.the370z.com/members-370z-...lid-red-z.html

11-24-2014, 03:48 PM	#13 (permalink)
jwick A True Z Fanatic Join Date: Dec 2010 Location: Houston Posts: 14,532 Drives: '10 G37 6MT Rep Power: 2465057	I'll jump on the cooler bandwagon. I can spike oil temps 30deg just with a few good boosted pulls on the freeway. That's with an oil pan spacer and 30 row cooler. Temps max out around 210-215degC so no high heat issues but I can only imagine the temps I'd see without the cooler and 8.5qrts of oil cycling. GaleForce likes this. __________________ '10 G37T 6MT Graphite/Graphite - BP - G37T Build

11-24-2014, 04:07 PM	#14 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	well he may have a slight difference in oil temps due to not having oil circulated through his turbos. but yeah the car still needs at least a small cooler. Edit: Except mine I need to remove my cooler. Dry sump + 12.5qts __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

11-24-2014, 09:53 PM	#15 (permalink)
thangcu35 Base Member Join Date: Mar 2014 Location: Fayetteville, NC Posts: 97 Drives: '12 Sport/Tour/Nav Rep Power: 16	I will definitely go with a 30+ rows thermostatic cooler eventually. Looks like there will be no update from me for a week since I will be out of town. Happy early Thanksgiving everyone

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