GT25R turbo questions... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

lv-180sx · 08-15-2004, 05:46 AM

im getting a GT25 turbo for an awesome price and i was just wondering what needs to be exactly done to install the turbo. is this turbo a "direct" bolt on? someone told me that everything fits except the intake pipe (which is pretty easy). other than that, will the turbo outlet bolt on? hotpipe? oil/ water lines? what else will i need to be safe at 8psi?... will i need to upgrade my injectors to maybe 550cc? also, how much power will i gain on a stock redtop SR20DET at 8psi? btw, my motor is an SR20DET redtop... sorry for all the questions, but i dont want to get the turbo, and have one of those projects that never gets done, you know? thanks guys..

wootwoot · 08-15-2004, 11:18 AM

if you get that turbo, at around 200whp you will be maxed out. it only has a flow capacity of "about" 250hp. how cheap are you getting it for because im pretty sure it isnt worth it

xVaporx · 08-15-2004, 11:18 AM

big difference between the GT25 and the GT25R. Which one are you getting? Also, where are you getting it from, b/c different company's use different terminology for the same turbos. The GT series is the most misunderstood genre of turbos out there. Its important to know which and where you are getting it from. GT25 is same as stock but Ball Bearing, flows about 250-270whp max. GT25R is MUCH different, requires grinding of the motor mount, custom hot pipe, custom intake, custom water and oil lines, custom actuator bracket and you absolutely will need injectors and a maf upgrade. Running a GT25R at 8psi is stupid, you are negating the benefit of running this turbo. It's much happier at 15-19psi

wootwoot · 08-15-2004, 11:25 AM

are you talking about the gt25/40r??? im looking at the gt25r and this is what i gotsclick me....
what you are describing sounds like the gt25/40r

lv-180sx · 08-15-2004, 05:29 PM

maybe you guys can help me by looking at these pics. im getting the turbo for $565 shipped.. is this a GT25R or am i getting ripped?

is that the turbo where you need to grind the engine mounts? that is a pic of the turbo im actually getting... thanks for all the help!

lv-180sx · 08-15-2004, 05:36 PM

here are the specs:

brand new GT25R Full ball bearing turbo the spec are A/R Compressor housing is 0.80 and the A/R turbine housing is 0.64 it is capable of 300hp no problem. $550 retails at garrett for $1200 brand new

xVaporx · 08-15-2004, 07:47 PM

that is definately a GT25, not GT25R/GT2540R. GT25R uses T04S compressor cover and huge 4 inch inlet

lv-180sx · 08-15-2004, 08:25 PM

Quote:

Originally Posted by xVaporx

that is definately a GT25, not GT25R/GT2540R. GT25R uses T04S compressor cover and huge 4 inch inlet

really?? well, is $550 a good price for a brand new gt25? are gt25's good turbos? i noticed that the hotpipe outlet faces the opposite said, so i know im gonna have to make a new hotpipe, but is there any way i can rotate it?

nrg · 08-16-2004, 12:06 AM

so n00b so sad..
rotating it. you mean clocking the turbo.
All your answers are on freshalloy
http://forums.freshalloy.com/ubbthre...=&fpart=1&vc=1
Install and parts list with pictures: http://forums.freshalloy.com/ubbthre...=&fpart=1&vc=1

lv-180sx · 08-16-2004, 02:24 AM

Quote:

Originally Posted by nrg

so n00b so sad..
rotating it. you mean clocking the turbo.
All your answers are on freshalloy
http://forums.freshalloy.com/ubbthre...=&fpart=1&vc=1
Install and parts list with pictures: http://forums.freshalloy.com/ubbthre...=&fpart=1&vc=1

lol, sorry about that, im a little new to turbo's.. im trying to learn from forums because thast what you guys are for right? anyways, thanks for all that info man!

xVaporx · 08-16-2004, 09:29 AM

personally, if you are going through the hassle of swapping turbos, I'd at least go with a GT28

Var · 08-16-2004, 09:34 AM

www.jgycustoms.com

Check out the disco potato kit. ~2100 bucks for a nice turbo, maf, injectors, ECU, fuel rail

msaskin · 08-16-2004, 09:35 AM

That turbo you're buying (the GT25, or GT25R as some call it) is no better than stock.

The GT25/40R is the upgrade. It's pretty easy to identify since the compressor housing is FREAKING MASSIVE and it has a 4" inlet.

If you have any questions about that install, just ask away. I installed mine a few nights ago.

~matt

xVaporx · 08-16-2004, 12:48 PM

Here is a picture of a GT25R mounted on my S13 blacktop (note: we converted stock mani to external w/g)

Much different than the turbo pictured above

08-15-2004, 05:46 AM	#1
lv-180sx Zilvia Junkie Join Date: Jun 2004 Location: las vegas Posts: 547 Trader Rating: (12) Feedback Score: 12 reviews	GT25R turbo questions... im getting a GT25 turbo for an awesome price and i was just wondering what needs to be exactly done to install the turbo. is this turbo a "direct" bolt on? someone told me that everything fits except the intake pipe (which is pretty easy). other than that, will the turbo outlet bolt on? hotpipe? oil/ water lines? what else will i need to be safe at 8psi?... will i need to upgrade my injectors to maybe 550cc? also, how much power will i gain on a stock redtop SR20DET at 8psi? btw, my motor is an SR20DET redtop... sorry for all the questions, but i dont want to get the turbo, and have one of those projects that never gets done, you know? thanks guys..

08-15-2004, 11:18 AM	#3
xVaporx Leaky Injector Join Date: Jan 2004 Location: Hurricane Target, FL Posts: 143 Trader Rating: (0) Feedback Score: 0 reviews	big difference between the GT25 and the GT25R. Which one are you getting? Also, where are you getting it from, b/c different company's use different terminology for the same turbos. The GT series is the most misunderstood genre of turbos out there. Its important to know which and where you are getting it from. GT25 is same as stock but Ball Bearing, flows about 250-270whp max. GT25R is MUCH different, requires grinding of the motor mount, custom hot pipe, custom intake, custom water and oil lines, custom actuator bracket and you absolutely will need injectors and a maf upgrade. Running a GT25R at 8psi is stupid, you are negating the benefit of running this turbo. It's much happier at 15-19psi __________________

08-15-2004, 07:47 PM	#7
xVaporx Leaky Injector Join Date: Jan 2004 Location: Hurricane Target, FL Posts: 143 Trader Rating: (0) Feedback Score: 0 reviews	that is definately a GT25, not GT25R/GT2540R. GT25R uses T04S compressor cover and huge 4 inch inlet __________________

08-16-2004, 12:06 AM	#9
nrg Zilvia FREAK! Join Date: Mar 2004 Location: CA Age: 40 Posts: 1,571 Trader Rating: (1) Feedback Score: 1 reviews	so n00b so sad.. rotating it. you mean clocking the turbo. All your answers are on freshalloy http://forums.freshalloy.com/ubbthre...=&fpart=1&vc=1 Install and parts list with pictures: http://forums.freshalloy.com/ubbthre...=&fpart=1&vc=1 __________________ driftingisgay.com

08-16-2004, 09:29 AM	#11
xVaporx Leaky Injector Join Date: Jan 2004 Location: Hurricane Target, FL Posts: 143 Trader Rating: (0) Feedback Score: 0 reviews	personally, if you are going through the hassle of swapping turbos, I'd at least go with a GT28 __________________

08-15-2004, 11:18 AM	#2
wootwoot Post Whore! Join Date: Jan 2004 Location: sarasota florida biatch Age: 39 Posts: 3,850 Trader Rating: (0) Feedback Score: 0 reviews	if you get that turbo, at around 200whp you will be maxed out. it only has a flow capacity of "about" 250hp. how cheap are you getting it for because im pretty sure it isnt worth it

08-15-2004, 11:25 AM	#4
wootwoot Post Whore! Join Date: Jan 2004 Location: sarasota florida biatch Age: 39 Posts: 3,850 Trader Rating: (0) Feedback Score: 0 reviews	are you talking about the gt25/40r??? im looking at the gt25r and this is what i gotsclick me.... what you are describing sounds like the gt25/40r

08-15-2004, 05:29 PM	#5
lv-180sx Zilvia Junkie Join Date: Jun 2004 Location: las vegas Posts: 547 Trader Rating: (12) Feedback Score: 12 reviews	maybe you guys can help me by looking at these pics. im getting the turbo for $565 shipped.. is this a GT25R or am i getting ripped? is that the turbo where you need to grind the engine mounts? that is a pic of the turbo im actually getting... thanks for all the help!

08-15-2004, 05:36 PM	#6
lv-180sx Zilvia Junkie Join Date: Jun 2004 Location: las vegas Posts: 547 Trader Rating: (12) Feedback Score: 12 reviews	here are the specs: brand new GT25R Full ball bearing turbo the spec are A/R Compressor housing is 0.80 and the A/R turbine housing is 0.64 it is capable of 300hp no problem. $550 retails at garrett for $1200 brand new

08-16-2004, 09:34 AM	#12
Var Post Whore! Join Date: Sep 2003 Location: Norcal Age: 43 Posts: 5,032 Trader Rating: (0) Rides Gallery: Var Feedback Score: 0 reviews	www.jgycustoms.com Check out the disco potato kit. ~2100 bucks for a nice turbo, maf, injectors, ECU, fuel rail __________________ Hi

08-16-2004, 09:35 AM	#13
msaskin Zilvia Member Join Date: Feb 2004 Location: Las Vegas, NV / Albany, NY Age: 41 Posts: 268 Trader Rating: (0) Rides Gallery: msaskin Feedback Score: 0 reviews	That turbo you're buying (the GT25, or GT25R as some call it) is no better than stock. The GT25/40R is the upgrade. It's pretty easy to identify since the compressor housing is FREAKING MASSIVE and it has a 4" inlet. If you have any questions about that install, just ask away. I installed mine a few nights ago. ~matt __________________ it's not turbo lag...it's foreplay '01 Ford Excursion Limited. Powerstroke Diesel Coming in spring: ???

08-16-2004, 12:48 PM	#14
xVaporx Leaky Injector Join Date: Jan 2004 Location: Hurricane Target, FL Posts: 143 Trader Rating: (0) Feedback Score: 0 reviews	Here is a picture of a GT25R mounted on my S13 blacktop (note: we converted stock mani to external w/g) Much different than the turbo pictured above __________________