turbo not boosting HELP - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Gorilla PimP · 11-07-2006, 12:07 PM

Hey guys i seem to be having a big prob lately with my car. just recient the turbo is making no boost, and being that i am running open DP you can hear it whiseling but now i am not hearing that. I have a GT2871R so as you know its ball bearing and you can hear that thing spooling for miles away. but not i can bearly hear it. Then some times you can hear it spooling again then i hear a clunk like somehting is getting stuck then unstuck. so what the hell could ths be ? please if anyone can help me please help. Is my turbo blowen or something. wtf

LB.Motoring · 11-07-2006, 12:10 PM

see if theres massive amount of play in the turbo?

burgy240 · 11-07-2006, 01:48 PM

I had a similar problem but not exactly the same, Mine turned out to be the gasket between the manifold and the turbo. I have no boost until late and it sounds horrible. check to make sure you don't have an exhaust leaks anywhere?

GSXRJJordan · 11-07-2006, 02:06 PM

yup exhaust leak probably. If it's a boost leak you'd notice a loss in power once you stepped on it, to go along with "less" spool.

Check for exhaust leaks, and then take the intake off and try moving the shaft in and out, as well as around... if it moves more than a couple millimeters, you might be looking at blowby through the seals.

blownoffvalve · 11-08-2006, 01:29 AM

can't the gaskets be replaced?

Gorilla PimP · 11-09-2006, 10:32 AM

ahhh well i am getting some crazy shaft play.

*fliprayzin240sx* · 11-09-2006, 11:22 AM

I just went thru the same shiet before i sold my car. GT2871R. Turned out i had a boost leak while running 18 psi. Gauge was showing 18 psi but only god knows how much air the turbo was actually pushing. Best bet is have the whole center carrier swapped out for a new one. I had ATP turbo do mine for $600. Basically brand new turbo and only thing they reused are the housings.

11-07-2006, 12:07 PM	#1
Gorilla PimP Leaky Injector Join Date: May 2004 Location: in your mom Age: 44 Posts: 64 Trader Rating: (0) Feedback Score: 0 reviews	turbo not boosting HELP Hey guys i seem to be having a big prob lately with my car. just recient the turbo is making no boost, and being that i am running open DP you can hear it whiseling but now i am not hearing that. I have a GT2871R so as you know its ball bearing and you can hear that thing spooling for miles away. but not i can bearly hear it. Then some times you can hear it spooling again then i hear a clunk like somehting is getting stuck then unstuck. so what the hell could ths be ? please if anyone can help me please help. Is my turbo blowen or something. wtf __________________ And you thought you had skills

11-07-2006, 12:10 PM	#2
LB.Motoring Post Whore! Join Date: Jul 2006 Location: SòCal♥ Age: 38 Posts: 5,840 Trader Rating: (1) Rides Gallery: LB.Motoring Feedback Score: 1 reviews	see if theres massive amount of play in the turbo? __________________ Robby Leuer

11-07-2006, 01:48 PM	#3
burgy240 Nissanaholic! Join Date: Oct 2001 Location: Tampa Age: 49 Posts: 2,151 Trader Rating: (2) Feedback Score: 2 reviews	I had a similar problem but not exactly the same, Mine turned out to be the gasket between the manifold and the turbo. I have no boost until late and it sounds horrible. check to make sure you don't have an exhaust leaks anywhere? __________________

11-07-2006, 02:06 PM	#4
GSXRJJordan Post Whore! Join Date: May 2006 Location: San Diego, CA Posts: 9,135 Trader Rating: (19) Rides Gallery: GSXRJJordan Feedback Score: 19 reviews	yup exhaust leak probably. If it's a boost leak you'd notice a loss in power once you stepped on it, to go along with "less" spool. Check for exhaust leaks, and then take the intake off and try moving the shaft in and out, as well as around... if it moves more than a couple millimeters, you might be looking at blowby through the seals. __________________ Jordan Innovations has a new web site! www.JordanInnovations.com -- All your favorite FD Pro Drifters love it, trust me -- www.JordanInnovations.com

11-09-2006, 10:32 AM	#6
Gorilla PimP Leaky Injector Join Date: May 2004 Location: in your mom Age: 44 Posts: 64 Trader Rating: (0) Feedback Score: 0 reviews	ahhh well i am getting some crazy shaft play. __________________ And you thought you had skills Last edited by Gorilla PimP; 10-06-2007 at 08:34 PM..

11-08-2006, 01:29 AM	#5
blownoffvalve Leaky Injector Join Date: Oct 2006 Location: cali Posts: 108 Trader Rating: (0) Feedback Score: 0 reviews	can't the gaskets be replaced?

11-09-2006, 11:22 AM	#7
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	I just went thru the same shiet before i sold my car. GT2871R. Turned out i had a boost leak while running 18 psi. Gauge was showing 18 psi but only god knows how much air the turbo was actually pushing. Best bet is have the whole center carrier swapped out for a new one. I had ATP turbo do mine for $600. Basically brand new turbo and only thing they reused are the housings. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!