Gt35r upgrade, is it safe to drive? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

a fuzzychnchila · 07-13-2010, 05:49 PM

Sold! Close!

Sileighty_85 · 07-13-2010, 06:33 PM

No its not safe, Boost is not the same with different turbo's, Bigger turbos flow more CFM (More Air) You should swap back to the stock turbo and wait gather all the other parts before you do the swap.

If yo accidentally boost too much you will blow the engine.

Do you even have a Metal Head Gasket?

jspaeth · 07-13-2010, 06:57 PM

Quote:

Originally Posted by Sileighty_85

No its not safe, Boost is not the same with different turbo's, Bigger turbos flow more CFM (More Air) You should swap back to the stock turbo and wait gather all the other parts before you do the swap.

If yo accidentally boost too much you will blow the engine.

Do you even have a Metal Head Gasket?

Well to be fair, it depends upon what you mean by "safe to drive".

If you are on a MAF sensor, the MAF WILL be able to safely detect the airflow into the engine and the injectors and ECU will behave like stock.

The issue is that you will max out the MAF or injectors very quickly.

Probably something like a few psi on that turbo at higher RPM and you will be flowing the same amount of air as a stock turbo at 15 psi.

Moral of the story....if you just need to limp the car to a shop to get it tuned, you could be okay, but you MUST KEEP THE CAR OUT OF BOOST (like 2 or 3 psi should be okay in the lower RPM as you are giving it a bit of gas)....

If you keep the car under vacuum and BABY it, you could limp it to a shop.

Anything more than that is extremely unsafe.

a fuzzychnchila · 07-13-2010, 07:00 PM

No I do not. I thought if I was not boosting much it wouldn't matter. I thought wrong Haha ... well I guess I won't be driving it soon. Thanks for your answer.

a fuzzychnchila · 07-13-2010, 07:03 PM

Oh ok well ill probably do that and dive it super slow to a shop... Thanks

*fliprayzin240sx* · 07-16-2010, 03:41 AM

Stay off the boost, plain and simple. As long as it stays in vacuum, it should be okay.

7 psi on a T25 is not even close to 7 psi on a GT3582R. Its not the boost, but the volume of air being pushed thru thats the difference. At that boost level for both, 180 whp for the T25 and probably 280-300 on the GT3582R.

mr_eh · 07-16-2010, 06:36 AM

it's safe, if you disconnect your hotside on the intercooler so you cant get any boost.

jspaeth · 07-16-2010, 07:00 AM

Quote:

Originally Posted by mr_eh

it's safe, if you disconnect your hotside on the intercooler so you cant get any boost.

If he's converting over from stock, he probably has a MAF sensor, and what you mentioned will not work

mr_eh · 07-16-2010, 07:08 AM

well if he just takes the wheel out of the turbo he should be fine.

Sileighty_85 · 07-16-2010, 07:17 AM

Quote:

Originally Posted by mr_eh

well if he just takes the wheel out of the turbo he should be fine.

please tell me your joking...

If you wanna be lazy/ghetto then just take off the external W/G

mr_eh · 07-16-2010, 07:27 AM

yes im joking...

240sxvaj · 07-16-2010, 11:46 AM

to the op: why wont you just get a tuned ecu shipped to you while your installing your gt35r? makes it alot safer to drive and boost. not just that you can drive it to the shop just for a fine tune

btw, get bigger injectors and pump before you fuck up anything else. dont do half ass jobs. just my 2 cents

Sam_Well.13 · 07-16-2010, 11:51 AM

Quote:

Originally Posted by fliprayzin240sx

Stay off the boost, plain and simple. As long as it stays in vacuum, it should be okay.

.

iono what u guys are bafflin about.. here is your answer^^^^

drive like sane person, granny shift it @ 2200rpm. you should be fine...

a friend of mine drove his KA-T with T3-T4 to a tune shop in long beach or murrieta.. forgot which one. and we live about an hr away from each shop.. drove fine there.

supportTHEezln · 07-16-2010, 11:58 AM

Quote:

Originally Posted by Sileighty_85

please tell me your joking...

If you wanna be lazy/ghetto then just take off the external W/G

Quote:

Originally Posted by jspaeth

If he's converting over from stock, he probably has a MAF sensor, and what you mentioned will not work

Jesus, you people don't know many sarcastic people I take it?

a fuzzychnchila · 07-17-2010, 09:01 PM

Quote:

Originally Posted by mr_eh

well if he just takes the wheel out of the turbo he should be fine.

That easy? Lol >.

a fuzzychnchila · 07-17-2010, 09:05 PM

Quote:

Originally Posted by 240sxvaj

to the op: why wont you just get a tuned ecu shipped to you while your installing your gt35r? makes it alot safer to drive and boost. not just that you can drive it to the shop just for a fine tune

btw, get bigger injectors and pump before you fuck up anything else. dont do half ass jobs. just my 2 cents

Yeah I'm actually going to save up for some 740cc, upgrade the fuel pump, metal head gasket and buy a power fc...
It's my daily so I needed it back on the road for work but my uncle is letting me borrow his car so that I may buy the necessary items and not rush it

*fliprayzin240sx* · 07-18-2010, 03:26 AM

Quote:

Originally Posted by mrjchinchilla

Yeah I'm actually going to save up for some 740cc, upgrade the fuel pump, metal head gasket and buy a power fc...
It's my daily so I needed it back on the road for work but my uncle is letting me borrow his car so that I may buy the necessary items and not rush it

Damn near impossible to tell the difference between sarcasm and stupidity on here. You'd be surprised the kind of shit I've read in here and they were being serious.

But in all honesty, keep the stock turbo setup until you get everything in. No point of slapping in a turbo that big and plan on driving it for a while until you get all the supporting mods. Wouldnt take much for you to accidentally boost it and have a nice rod knock on it. We thought you were asking if its safe to drive, just to drive it to your tuner instead of getting it towed to save some money.

Also, I got the same setup, I'd opt up for some 850s. You'd be pushing those 740s near their max with a turbo that big at high boost, high boost in the ball park of atleast 1.5-1.8 psi.

a fuzzychnchila · 07-18-2010, 04:24 AM

Quote:

Originally Posted by fliprayzin240sx

Damn near impossible to tell the difference between sarcasm and stupidity on here. You'd be surprised the kind of shit I've read in here and they were being serious.

But in all honesty, keep the stock turbo setup until you get everything in. No point of slapping in a turbo that big and plan on driving it for a while until you get all the supporting mods. Wouldnt take much for you to accidentally boost it and have a nice rod knock on it. We thought you were asking if its safe to drive, just to drive it to your tuner instead of getting it towed to save some money.

Also, I got the same setup, I'd opt up for some 850s. You'd be pushing those 740s near their max with a turbo that big at high boost, high boost in the ball park of atleast 1.5-1.8 psi.

Yeah that's what I was originally asking because I was on a time limit and running out of $$$$ but now I have a another car for the mean time so that I may gather all the parts and do the swap safely and right.

a fuzzychnchila · 07-18-2010, 04:36 AM

I guess I might go 850cc to be safe. I thought 740cc would be safe if tuned, but getting 850s wouldn't hurt.
Thanks for your suggestions...

*fliprayzin240sx* · 07-19-2010, 07:01 AM

Reason I say 850s, you'd max out 740s after 450-480whp. GT35R has more than enough air flow to push you up and over 500whp depending on the supporting mods and tune (closer to 2.0 bar).

Also, I hope youre not gonna leave it at .8 bar. These turbo's doesnt liven up till after 1 bar. And, what do you have planned for the drivetrain? Clutch and transmission upgrade should be in your sights.

*handinpants* · 07-20-2010, 12:52 AM

sell your setup to me

a fuzzychnchila · 07-23-2010, 06:26 AM

Quote:

Originally Posted by fliprayzin240sx

Reason I say 850s, you'd max out 740s after 450-480whp. GT35R has more than enough air flow to push you up and over 500whp depending on the supporting mods and tune (closer to 2.0 bar).

Also, I hope youre not gonna leave it at .8 bar. These turbo's doesnt liven up till after 1 bar. And, what do you have planned for the drivetrain? Clutch and transmission upgrade should be in your sights.

Well I'm just trying to make it driveable right now... I will start upgrading the tranny later on... I wanted to stay with t25 but there were welds on the mani and turbo flang and the bolts snapped in half so I couldn't put it back on Haha and I had this set up in a box in my room and said "what the heck" lol should of did more research but I'm getting closer to driving it safe

while leaning more and more in the process...

a fuzzychnchila · 07-23-2010, 06:26 AM

Quote:

Originally Posted by handinpants

sell your setup to me

Maybe if I end up blowing the engine Haha

mr_eh · 07-23-2010, 07:10 AM

i went with 1000ccs for my 35r setup.... overkill!

07-13-2010, 05:49 PM	#1
a fuzzychnchila Zilvia Member Join Date: Mar 2010 Location: So-Cal Posts: 296 Trader Rating: (14) Feedback Score: 14 reviews	Gt35r upgrade, is it safe to drive? Sold! Close! Last edited by a fuzzychnchila; 07-05-2012 at 03:52 PM..

07-13-2010, 06:33 PM	#2
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	No its not safe, Boost is not the same with different turbo's, Bigger turbos flow more CFM (More Air) You should swap back to the stock turbo and wait gather all the other parts before you do the swap. If yo accidentally boost too much you will blow the engine. Do you even have a Metal Head Gasket? __________________ 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

07-16-2010, 03:41 AM	#6
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	Stay off the boost, plain and simple. As long as it stays in vacuum, it should be okay. 7 psi on a T25 is not even close to 7 psi on a GT3582R. Its not the boost, but the volume of air being pushed thru thats the difference. At that boost level for both, 180 whp for the T25 and probably 280-300 on the GT3582R. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

07-16-2010, 06:36 AM	#7
mr_eh Zilvia Junkie Join Date: Oct 2008 Location: Staten Island / Central Jersey Age: 39 Posts: 466 Trader Rating: (2) Feedback Score: 2 reviews	it's safe, if you disconnect your hotside on the intercooler so you cant get any boost. __________________ My 96 S14 \| 501whp SOLD

07-16-2010, 07:08 AM	#9
mr_eh Zilvia Junkie Join Date: Oct 2008 Location: Staten Island / Central Jersey Age: 39 Posts: 466 Trader Rating: (2) Feedback Score: 2 reviews	well if he just takes the wheel out of the turbo he should be fine. __________________ My 96 S14 \| 501whp SOLD

07-13-2010, 07:00 PM	#4
a fuzzychnchila Zilvia Member Join Date: Mar 2010 Location: So-Cal Posts: 296 Trader Rating: (14) Feedback Score: 14 reviews	No I do not. I thought if I was not boosting much it wouldn't matter. I thought wrong Haha ... well I guess I won't be driving it soon. Thanks for your answer.

07-13-2010, 07:03 PM	#5
a fuzzychnchila Zilvia Member Join Date: Mar 2010 Location: So-Cal Posts: 296 Trader Rating: (14) Feedback Score: 14 reviews	Oh ok well ill probably do that and dive it super slow to a shop... Thanks

07-16-2010, 07:27 AM	#11
mr_eh Zilvia Junkie Join Date: Oct 2008 Location: Staten Island / Central Jersey Age: 39 Posts: 466 Trader Rating: (2) Feedback Score: 2 reviews	yes im joking... __________________ My 96 S14 \| 501whp SOLD

07-16-2010, 11:46 AM	#12
240sxvaj Nissanaholic! Join Date: Dec 2007 Location: So-Cal! Age: 31 Posts: 2,192 Trader Rating: (38) Feedback Score: 38 reviews	to the op: why wont you just get a tuned ecu shipped to you while your installing your gt35r? makes it alot safer to drive and boost. not just that you can drive it to the shop just for a fine tune btw, get bigger injectors and pump before you fuck up anything else. dont do half ass jobs. just my 2 cents

07-18-2010, 04:36 AM	#19
a fuzzychnchila Zilvia Member Join Date: Mar 2010 Location: So-Cal Posts: 296 Trader Rating: (14) Feedback Score: 14 reviews	I guess I might go 850cc to be safe. I thought 740cc would be safe if tuned, but getting 850s wouldn't hurt. Thanks for your suggestions...

07-19-2010, 07:01 AM	#20
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	Reason I say 850s, you'd max out 740s after 450-480whp. GT35R has more than enough air flow to push you up and over 500whp depending on the supporting mods and tune (closer to 2.0 bar). Also, I hope youre not gonna leave it at .8 bar. These turbo's doesnt liven up till after 1 bar. And, what do you have planned for the drivetrain? Clutch and transmission upgrade should be in your sights. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

07-20-2010, 12:52 AM	#21
handinpants FreshColdBeer.com Join Date: Feb 2008 Location: California Age: 38 Posts: 2,665 Trader Rating: (48) Rides Gallery: handinpants Feedback Score: 48 reviews	sell your setup to me __________________

07-23-2010, 07:10 AM	#24
mr_eh Zilvia Junkie Join Date: Oct 2008 Location: Staten Island / Central Jersey Age: 39 Posts: 466 Trader Rating: (2) Feedback Score: 2 reviews	i went with 1000ccs for my 35r setup.... overkill! __________________ My 96 S14 \| 501whp SOLD

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