GT2871 installation - DIY - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

SoguRacing · 05-07-2008, 08:51 PM

5-7-08
Hey guys! first off i'd like to introduce myself. My name is Daniel and i've owned my 240 with sr swap for about 3 years. Here is my installation of the GT2871 .64. Took about 10 hours from start till finish. still need a tune, oil change and a few other various things.

List of tools used:
3/8 rachet, 7mm socket, 10mm socket, 12mm socket, 13mm socket, 14mmsocket, 17mm socket, 18mm socket, 19mm socket
13mm open/box wrench, torque wrench, pliers (regular and extended 90degree types), thread lock, anti seize, various rachet extensions 3in 6in 10in, crescent wrench, swivel head 17mm socket to get the oil feed line banjo bolt out ,a 14 mm swivel head socket to get the manifold nuts off, there's more, just forgot

This is the 14mm socket i used to take off the exhaust manifold nuts. It was the only one that i could find to get into those tight places without getting under the car. Also mind you that i have AC

The 17mm socket looks the same only bigger when messing with the coolant return banjo bolt.

There's quite a difference in the size of the gt2871 .64 (left) and the stock T25 (right) *Take note that the compressor inlets are clocked differently.*

I opted for the divided iconnel exhaust housing but ended up mating up the stock t25 elbow with some modification to one of the elbow's bolt holes.

A box of goodies from my stock t25 setup that i just took off. I used the stock dump tube and exhaust manifold and some various nuts and bolts from the old setup. *I upgrade to the megan outlet*

Got started by installing some of the oil and coolant lines.
used some teflon tape on the threads to ensure no leaks.

I didn't take a pic of the t25 actuator but here is the difference in the hks actuator (left) and the gt28rs/gt2871 actuator (right).

Turbo with the lines and the new HKS actuator on.

Another picture of the turbo. Also just as a note: make sure to tighten all of the turbo bolts down snuggly. they usually come from the factory fairly loose.

Another picture of the turbo.

I had to use the t28 adaptor plates in order to clock the turbo properly in the s13 bay for the s13 piping.

The new oil drain unit. the rubber tube was a bit** to put on under car. probably a DIY newbie mistake to wait till last.

Here is a pic of it installed.

A pic with the manifold and inlet and outlet pipes on. As you can see they are clocked the correct way with the adaptor plates.

I used new gaskets during assembly to ensure a proper seal.

here's a pic of the new setup on the car. i used the 7 layer gasket and scraped away the old gasket being careful not to damage the aluminum bock/head.

Here's a pic of the underside of the car with the drain tube attached. Saved it for last as it was the toughest thing to put on snaking under the car. Also with the down pipe attached. used new gaskets.

here's a pic of my Home Depot special recirculation tube. cost around 5 bucks lol

And here's my final setup.

I'm also going to install a z32 maf within the next few days when i get the time to do it.

Thanks for looking!! +1 for all DIY'ers WE RULE!!!

cont: 5-8-08
removing the stock elbow waiting for my megan elbow to arrive. used a 12mm socket and wrench to remove the nuts. there are 5 of them.

elbow has been removed. used a 14mm socket to remove the 3 nuts holding the downpipe to the elbow.

while i was at that i decided to remove my cat and put in a test pipe for now.

went right in without any problems.

K_style · 05-07-2008, 08:53 PM

Nice [email protected][email protected][email protected]!

Sileighty_85 · 05-07-2008, 08:56 PM

Looks good man

I can understand why you used the stock manifold but
Why oh why did you use the stock Dump pipe??
that probably one of the most restrictive pieces of the exhaust system, you could have at least gone with a Megan, its only 130 bucks.
plus with the less hassle of it being out already

SoguRacing · 05-07-2008, 09:04 PM

yea, i know. Just didn't feel the need to use it. a couple of hp loss isn't going to kill me. probably later when i upgrade the manifold.

***S14DB*** · 05-07-2008, 09:07 PM

It's not a good idea to use Teflon tape on oil lines. Save it for your home plumbing.

Quote:

Originally Posted by SoguRacing

yea, i know. Just didn't feel the need to use it. a couple of hp loss isn't going to kill me. probably later when i upgrade the manifold.

Like said before you are going to loose a lot of HP with the stock outlet. It's not a couple. It's 15-20hp with the stock turbo.

clark · 05-07-2008, 09:11 PM

i like!

what else are you upgrading along with this turbo? i plan to go with the same turbo after i beat the piss out of my T25 for about a year.

Sileighty_85 · 05-07-2008, 09:13 PM

you'd be surpirsed on the differance it would make especially on your turbo now
And for "spool up" time.

that 3 in exhaust doesnt help as much when the gases are still being pushed through a 1 3/4 - 2in (cant remember size) pipe especially when that waste gate opens up

jspaeth · 05-07-2008, 09:13 PM

Quote:

Originally Posted by S14DB

It's not a good idea to use Teflon tape on oil lines. Save it for your home plumbing.

Like said before you are going to loose a lot of HP with the stock outlet. It's not a couple. It's 15-20hp with the stock turbo.

You beat me to it! I was just going to do some scolding for using Teflon on the oil lines.

To the OP, the reason is that it could be possible to get a piece of the tape into the oil line while twisting it, and then if it clogs up your restrictor, your turbo takes a giant poop.

*burnsauto* · 05-07-2008, 09:19 PM

Quote:

Originally Posted by S14DB

It's not a good idea to use Teflon tape on oil lines. Save it for your home plumbing.

Like said before you are going to loose a lot of HP with the stock outlet. It's not a couple. It's 15-20hp with the stock turbo.

yeah unless its a tapered fitting...they recommend that you dont use teflon tape.

not too bad.....def. not the way i would of done things (the outlet...big mistake. that makes the biggest difference on any of the exhaust pieces) but....as long as you're happy.

SR20n00b · 05-07-2008, 09:21 PM

so the stock mani will work with the GT2871 .64?

+rep

DirtyS14 · 05-07-2008, 09:25 PM

Awesome, thanks for this!!!

SoguRacing · 05-07-2008, 09:44 PM

Ok, I'll be upgrading the turbo elbow in a couple days. as for other mods. just getting some 740cc injectors and a fpr and install my walbro fuel pump. I think that's it. lmk on some other mods before i get this sucker tuned. and suggestions... thanks for the input. you can never get too much.

FusionR240sx · 05-07-2008, 10:05 PM

yea... using teflon tape is like using nothing...
it's just gona melt away and crumple up into the turbo.

that line going to the back was pretty fun i bet huh?
i fuccin hated that part.

Sileighty_85 · 05-07-2008, 10:14 PM

Why does your valve cover look like it came off of a Blue Bird SR?

DataXUnknown · 05-07-2008, 11:14 PM

+1 for a good DIY thread. I will need this in the near future =)

SoguRacing · 05-07-2008, 11:19 PM

Quote:

Originally Posted by Sileighty_85

Why does your valve cover look like it came off of a Blue Bird SR?

Dont know lol. it came with the sr when it was purchased from my friend. i know it's not the original. been told that many times

SoguRacing · 05-07-2008, 11:20 PM

Quote:

Originally Posted by FusionR240sx

yea... using teflon tape is like using nothing...
it's just gona melt away and crumple up into the turbo.

i'm going to redo that tomorrow. you all got me worried. thanks for the advice

jspaeth · 05-07-2008, 11:28 PM

Just a simple correction.

You keep saying dump pipe, but a dump pipe is what comes off an external gate....

Usually it is called a turbo elbow, turbine outlet, etc.

SoguRacing · 05-07-2008, 11:36 PM

my bad, thanks for the correction.

heyitzalan · 05-07-2008, 11:38 PM

Diy Tune Would Be Awesome!!!

SoguRacing · 05-07-2008, 11:44 PM

haha, i'd have to get a wideband. not sure how that would go over. I've thought about it but I've heard too many people mess up their cars. It's still in the back of my mind tho i dont have much time for something like that. If i find a good deal out there on a Wideband i might just go for it

mcdonne32004 · 05-08-2008, 12:00 AM

noticed your still running stock maf, I'd be taking that out asap before you max it out w/ the 2871. nice write up though

usdm180sx · 05-08-2008, 12:01 AM

Nice writeup! You should have went the extra mile and upgraded the elbow though. The 2871r needs it! You'll see what I mean when you replace the elbow. Again, nice write up

rps13sr20det · 05-08-2008, 01:58 AM

Great write up! i just finished the same setup except I used the Megan Turbo elbow! HOLY F*CK is the oil return a pain! i tried to use the T25 oil return. Even with bending and heating, it still wouldn't line up the same. I tried to fab a new line and it turned out worse! Good DIY! I would love to see a section on the Tech about all DIY installs

PhAtXSuMo · 05-08-2008, 02:01 AM

+1 for a awesome guy!!! i wish i can do stuff like that right now =( running stock KA =(

but this is something i can look at in the near future in like 2 years or so lmao

good job !! keep up the good work thanks for willing to help me out with my car problems as well!

SoguRacing · 05-08-2008, 02:02 AM

i think they have one in the Fabrication section. thanks. the diy isn't that in dept but just having everything laid out makes it that much easier. i'm switching elbows soon. haha. thanks for the rep

Def · 05-08-2008, 08:05 AM

Again with the teflon tape on a fitting that doesn't need it. Hope that stuff doesn't end up in your CHRA, or you'll smoke your new turbo...

Flybert · 05-08-2008, 08:55 AM

The part I'm confused about is how it took you 10 hours.

xplicit240 · 05-08-2008, 09:26 AM

have you gotten a down pipe already?

FRpilot · 05-08-2008, 11:57 AM

Quote:

Originally Posted by S14DB

It's not a good idea to use Teflon tape on oil lines. Save it for your home plumbing.

i was thinking the same thing.. actually, i was thinking, wouldn't the teflon tape just melt and leave a mess.

05-07-2008, 08:51 PM	#1
SoguRacing Post Whore! Join Date: Nov 2007 Location: (714) Age: 35 Posts: 2,967 Trader Rating: (23) Rides Gallery: SoguRacing Feedback Score: 23 reviews	GT2871 installation - DIY 5-7-08 Hey guys! first off i'd like to introduce myself. My name is Daniel and i've owned my 240 with sr swap for about 3 years. Here is my installation of the GT2871 .64. Took about 10 hours from start till finish. still need a tune, oil change and a few other various things. List of tools used: 3/8 rachet, 7mm socket, 10mm socket, 12mm socket, 13mm socket, 14mmsocket, 17mm socket, 18mm socket, 19mm socket 13mm open/box wrench, torque wrench, pliers (regular and extended 90degree types), thread lock, anti seize, various rachet extensions 3in 6in 10in, crescent wrench, swivel head 17mm socket to get the oil feed line banjo bolt out ,a 14 mm swivel head socket to get the manifold nuts off, there's more, just forgot This is the 14mm socket i used to take off the exhaust manifold nuts. It was the only one that i could find to get into those tight places without getting under the car. Also mind you that i have AC The 17mm socket looks the same only bigger when messing with the coolant return banjo bolt. There's quite a difference in the size of the gt2871 .64 (left) and the stock T25 (right) Take note that the compressor inlets are clocked differently. I opted for the divided iconnel exhaust housing but ended up mating up the stock t25 elbow with some modification to one of the elbow's bolt holes. A box of goodies from my stock t25 setup that i just took off. I used the stock dump tube and exhaust manifold and some various nuts and bolts from the old setup. I upgrade to the megan outlet Got started by installing some of the oil and coolant lines. used some teflon tape on the threads to ensure no leaks. I didn't take a pic of the t25 actuator but here is the difference in the hks actuator (left) and the gt28rs/gt2871 actuator (right). Turbo with the lines and the new HKS actuator on. Another picture of the turbo. Also just as a note: make sure to tighten all of the turbo bolts down snuggly. they usually come from the factory fairly loose. Another picture of the turbo. I had to use the t28 adaptor plates in order to clock the turbo properly in the s13 bay for the s13 piping. The new oil drain unit. the rubber tube was a bit** to put on under car. probably a DIY newbie mistake to wait till last. Here is a pic of it installed. A pic with the manifold and inlet and outlet pipes on. As you can see they are clocked the correct way with the adaptor plates. I used new gaskets during assembly to ensure a proper seal. here's a pic of the new setup on the car. i used the 7 layer gasket and scraped away the old gasket being careful not to damage the aluminum bock/head. Here's a pic of the underside of the car with the drain tube attached. Saved it for last as it was the toughest thing to put on snaking under the car. Also with the down pipe attached. used new gaskets. here's a pic of my Home Depot special recirculation tube. cost around 5 bucks lol And here's my final setup. I'm also going to install a z32 maf within the next few days when i get the time to do it. Thanks for looking!! +1 for all DIY'ers WE RULE!!! cont: 5-8-08 removing the stock elbow waiting for my megan elbow to arrive. used a 12mm socket and wrench to remove the nuts. there are 5 of them. elbow has been removed. used a 14mm socket to remove the 3 nuts holding the downpipe to the elbow. while i was at that i decided to remove my cat and put in a test pipe for now. went right in without any problems. __________________ Pre Tune Checkup! Compression,LeakDown,Vacuum Test $80. Cams Install: $180 Last edited by SoguRacing; 05-19-2008 at 11:47 PM..

05-07-2008, 08:56 PM	#3
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	Looks good man I can understand why you used the stock manifold but Why oh why did you use the stock Dump pipe?? that probably one of the most restrictive pieces of the exhaust system, you could have at least gone with a Megan, its only 130 bucks. plus with the less hassle of it being out already __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

05-07-2008, 09:04 PM	#4
SoguRacing Post Whore! Join Date: Nov 2007 Location: (714) Age: 35 Posts: 2,967 Trader Rating: (23) Rides Gallery: SoguRacing Feedback Score: 23 reviews	yea, i know. Just didn't feel the need to use it. a couple of hp loss isn't going to kill me. probably later when i upgrade the manifold. __________________ Pre Tune Checkup! Compression,LeakDown,Vacuum Test $80. Cams Install: $180

05-07-2008, 09:13 PM	#7
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	you'd be surpirsed on the differance it would make especially on your turbo now And for "spool up" time. that 3 in exhaust doesnt help as much when the gases are still being pushed through a 1 3/4 - 2in (cant remember size) pipe especially when that waste gate opens up __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

05-07-2008, 09:25 PM	#11
DirtyS14 Zilvia Member Join Date: Sep 2007 Location: Odaroloc Posts: 190 Trader Rating: (2) Feedback Score: 2 reviews	Awesome, thanks for this!!! __________________ S14 240SX aka "The Dirty S14" fizzerkart.com/s14.html

05-07-2008, 08:53 PM	#2
K_style Post Whore! Join Date: Dec 2007 Location: Henderson, NV Posts: 7,666 Trader Rating: (63) Rides Gallery: K_style Feedback Score: 63 reviews	Nice [email protected][email protected][email protected]!

05-07-2008, 09:11 PM	#6
clark Zilvia FREAK! Join Date: Mar 2008 Location: new york Posts: 1,035 Trader Rating: (1) Feedback Score: 1 reviews	i like! what else are you upgrading along with this turbo? i plan to go with the same turbo after i beat the piss out of my T25 for about a year.

05-07-2008, 09:21 PM	#10
SR20n00b Leaky Injector Join Date: Nov 2007 Location: florida Posts: 79 Trader Rating: (0) Feedback Score: 0 reviews	so the stock mani will work with the GT2871 .64? +rep

05-07-2008, 09:44 PM	#12
SoguRacing Post Whore! Join Date: Nov 2007 Location: (714) Age: 35 Posts: 2,967 Trader Rating: (23) Rides Gallery: SoguRacing Feedback Score: 23 reviews	Ok, I'll be upgrading the turbo elbow in a couple days. as for other mods. just getting some 740cc injectors and a fpr and install my walbro fuel pump. I think that's it. lmk on some other mods before i get this sucker tuned. and suggestions... thanks for the input. you can never get too much. __________________ Pre Tune Checkup! Compression,LeakDown,Vacuum Test $80. Cams Install: $180 Last edited by SoguRacing; 05-07-2008 at 11:36 PM..

05-07-2008, 10:14 PM	#14
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	Why does your valve cover look like it came off of a Blue Bird SR? __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

05-07-2008, 11:14 PM	#15
DataXUnknown Post Whore! Join Date: Sep 2006 Location: Mission Viejo, CA Age: 31 Posts: 2,934 Trader Rating: (30) Rides Gallery: DataXUnknown Feedback Score: 30 reviews	+1 for a good DIY thread. I will need this in the near future =)

05-07-2008, 11:28 PM	#18
jspaeth Nissanaholic! Join Date: Mar 2006 Location: Philadelphia suburbs Age: 37 Posts: 2,347 Trader Rating: (7) Rides Gallery: jspaeth Feedback Score: 7 reviews	Just a simple correction. You keep saying dump pipe, but a dump pipe is what comes off an external gate.... Usually it is called a turbo elbow, turbine outlet, etc. __________________ Daily driven

05-07-2008, 11:36 PM	#19
SoguRacing Post Whore! Join Date: Nov 2007 Location: (714) Age: 35 Posts: 2,967 Trader Rating: (23) Rides Gallery: SoguRacing Feedback Score: 23 reviews	my bad, thanks for the correction. __________________ Pre Tune Checkup! Compression,LeakDown,Vacuum Test $80. Cams Install: $180

05-07-2008, 11:38 PM	#20
heyitzalan Zilvia Addict Join Date: Oct 2006 Location: NEW YORK [email protected]$ING CITY Posts: 701 Trader Rating: (15) Feedback Score: 15 reviews	Diy Tune Would Be Awesome!!!

05-07-2008, 11:44 PM	#21
SoguRacing Post Whore! Join Date: Nov 2007 Location: (714) Age: 35 Posts: 2,967 Trader Rating: (23) Rides Gallery: SoguRacing Feedback Score: 23 reviews	haha, i'd have to get a wideband. not sure how that would go over. I've thought about it but I've heard too many people mess up their cars. It's still in the back of my mind tho i dont have much time for something like that. If i find a good deal out there on a Wideband i might just go for it __________________ Pre Tune Checkup! Compression,LeakDown,Vacuum Test $80. Cams Install: $180

05-08-2008, 12:00 AM	#22
mcdonne32004 Leaky Injector Join Date: Feb 2007 Location: collegeville, PA Age: 41 Posts: 68 Trader Rating: (0) Feedback Score: 0 reviews	noticed your still running stock maf, I'd be taking that out asap before you max it out w/ the 2871. nice write up though

05-08-2008, 12:01 AM	#23
usdm180sx Post Whore! Join Date: Dec 2005 Location: 562 Posts: 4,807 Trader Rating: (5) Rides Gallery: usdm180sx Feedback Score: 5 reviews	Nice writeup! You should have went the extra mile and upgraded the elbow though. The 2871r needs it! You'll see what I mean when you replace the elbow. Again, nice write up __________________ -Norm!

05-08-2008, 01:58 AM	#24
rps13sr20det Leaky Injector Join Date: Nov 2005 Location: calgary, AB Posts: 128 Trader Rating: (0) Feedback Score: 0 reviews	Great write up! i just finished the same setup except I used the Megan Turbo elbow! HOLY F*CK is the oil return a pain! i tried to use the T25 oil return. Even with bending and heating, it still wouldn't line up the same. I tried to fab a new line and it turned out worse! Good DIY! I would love to see a section on the Tech about all DIY installs __________________

05-08-2008, 02:01 AM	#25
PhAtXSuMo Zilvia Addict Join Date: Jun 2007 Location: SoCal//Anaheim Hills Age: 30 Posts: 959 Trader Rating: (5) Rides Gallery: PhAtXSuMo Feedback Score: 5 reviews	+1 for a awesome guy!!! i wish i can do stuff like that right now =( running stock KA =( but this is something i can look at in the near future in like 2 years or so lmao good job !! keep up the good work thanks for willing to help me out with my car problems as well! __________________ 1993 Honda Accord EX - Sold 1991 Nissan 240SX LE - Sold 2000 Honda S2000 SuMo Review http://phatxsumo.mybrute.com Pupil Me

05-08-2008, 02:02 AM	#26
SoguRacing Post Whore! Join Date: Nov 2007 Location: (714) Age: 35 Posts: 2,967 Trader Rating: (23) Rides Gallery: SoguRacing Feedback Score: 23 reviews	i think they have one in the Fabrication section. thanks. the diy isn't that in dept but just having everything laid out makes it that much easier. i'm switching elbows soon. haha. thanks for the rep __________________ Pre Tune Checkup! Compression,LeakDown,Vacuum Test $80. Cams Install: $180

05-08-2008, 08:05 AM	#27
Def Post Whore! Join Date: Apr 2004 Location: Houston, TX Posts: 2,701 Trader Rating: (16) Feedback Score: 16 reviews	Again with the teflon tape on a fitting that doesn't need it. Hope that stuff doesn't end up in your CHRA, or you'll smoke your new turbo...

05-08-2008, 08:55 AM	#28
Flybert Post Whore! Join Date: Mar 2003 Location: none Posts: 3,862 Trader Rating: (7) Feedback Score: 7 reviews	The part I'm confused about is how it took you 10 hours.

05-08-2008, 09:26 AM	#29
xplicit240 Zilvia Addict Join Date: Oct 2005 Location: Weird NJ! Age: 36 Posts: 723 Trader Rating: (0) Feedback Score: 0 reviews	have you gotten a down pipe already? __________________

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