Power loss and exhaust rattle - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

LukeDogg316 · 03-31-2006, 06:38 PM

Lately I noticed my car seemed to have less power, If I try gun in first I the car will boost fine according to the boost gauge and boost controller but it seems to lag, ( I have my foot on the floor until like 3.5K- 4k. The Turbo is an s14 T28. It lauched funny in 1st gear, I think, cause I get response from the clutch right away from the reverse and also it's sometimes hard to get in second gear.

Other than that I noticed lately there is an annoying ratttle I have coming from the exhaust, i hear until the car and from the muffler. around de-accerelaration around 3k. and tapping the gas pedal lightly at 5k.

Any ideas about any off these problems, thanks

koukidough · 03-31-2006, 08:14 PM

have you checked your turbo for any play?

LukeDogg316 · 03-31-2006, 08:20 PM

That's one thing I haven't checked yet, though

The Down pipe is bolted nice and tight to the turbo. The exhaust hangers are good. The noise gets really fast and loud now, if I get to around 6k when boosting up and then de-acceleraion. I am thinking could it be the cat internals, are loose or worse Turbo shaft play

hitman · 03-31-2006, 09:10 PM

i think its cause drift tech did your swap/

Blues13 · 04-01-2006, 05:56 AM

check your manifold to turbo gasket.. that could have gone out. You would have noticeable loss in power and exhaust noise would be much louder.

NIK90s13 · 04-01-2006, 06:25 AM

It could be a bad clutch, or it may be going out, Is it slipping? Do you smell anything when you acclerate? That could be your loss of power and shifting prob.
But I dont dissagree with the turbo either. I would check it first, That is an easy check. As far as the exaust rattle, like the others said, I'd check the gaskets, hangers, heat shields, ect. Good luck

03-31-2006, 06:38 PM	#1
LukeDogg316 Zilvia Member Join Date: May 2005 Location: San Diego Posts: 237 Trader Rating: (0) Feedback Score: 0 reviews	Power loss and exhaust rattle Lately I noticed my car seemed to have less power, If I try gun in first I the car will boost fine according to the boost gauge and boost controller but it seems to lag, ( I have my foot on the floor until like 3.5K- 4k. The Turbo is an s14 T28. It lauched funny in 1st gear, I think, cause I get response from the clutch right away from the reverse and also it's sometimes hard to get in second gear. Other than that I noticed lately there is an annoying ratttle I have coming from the exhaust, i hear until the car and from the muffler. around de-accerelaration around 3k. and tapping the gas pedal lightly at 5k. Any ideas about any off these problems, thanks __________________

03-31-2006, 08:14 PM	#2
koukidough Zilvia Junkie Join Date: Feb 2006 Location: Long Beach, California Age: 43 Posts: 399 Trader Rating: (0) Feedback Score: 0 reviews	have you checked your turbo for any play? __________________ 1997 Nissan S14 SE Redtop SR20DET @12psi 1999 Honda Civic Hatch EK9 N/A b16a2 (SOLD)

03-31-2006, 08:20 PM	#3
LukeDogg316 Zilvia Member Join Date: May 2005 Location: San Diego Posts: 237 Trader Rating: (0) Feedback Score: 0 reviews	That's one thing I haven't checked yet, though The Down pipe is bolted nice and tight to the turbo. The exhaust hangers are good. The noise gets really fast and loud now, if I get to around 6k when boosting up and then de-acceleraion. I am thinking could it be the cat internals, are loose or worse Turbo shaft play __________________

03-31-2006, 09:10 PM	#4
hitman Zilvia FREAK! Join Date: Mar 2006 Location: late 19th century prussia Age: 37 Posts: 1,057 Trader Rating: (3) Feedback Score: 3 reviews	i think its cause drift tech did your swap/

04-01-2006, 05:56 AM	#5
Blues13 Zilvia Junkie Join Date: Jul 2003 Location: OC Posts: 435 Trader Rating: (2) Feedback Score: 2 reviews	check your manifold to turbo gasket.. that could have gone out. You would have noticeable loss in power and exhaust noise would be much louder.

04-01-2006, 06:25 AM	#6
NIK90s13 Zilvia Junkie Join Date: Jan 2006 Location: texas Age: 58 Posts: 471 Trader Rating: (0) Feedback Score: 0 reviews	It could be a bad clutch, or it may be going out, Is it slipping? Do you smell anything when you acclerate? That could be your loss of power and shifting prob. But I dont dissagree with the turbo either. I would check it first, That is an easy check. As far as the exaust rattle, like the others said, I'd check the gaskets, hangers, heat shields, ect. Good luck