Sr20 loses power at 5k rpm??? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

cpl dozier · 03-18-2013, 10:38 PM

I have an sr20 redtop in my s13 hatch. Bought recently. Factory turbo running 7 psi. Fmic, bov, exhaust, intake. Car pulls fine and runs good until it hits 5k rpm. Then it is still smooth, it just doesnt pull anymore as rpm climbs to the redline at 6500. Any ideas on what could be going on? I did a boost leak check and didnt find any. However I did hear air leaking from the valve cover breather. Any ideas? I also know the car runs rich.

OrangeVirus1 · 03-18-2013, 11:00 PM

fix the issues. check for boost leaks. turbo could be out of steam by that rpm

cpl dozier · 03-19-2013, 07:38 AM

Runs rich because of the bov not being recirculated.

cpl dozier · 03-19-2013, 11:05 AM

I am installed a new Walbro fuel pump and problem solved.

spooled240 · 03-19-2013, 11:12 AM

check vtec solenoid

03-18-2013, 10:38 PM	#1
cpl dozier Zilvia FREAK! Join Date: Sep 2007 Location: Fultondale, Al. Age: 36 Posts: 1,076 Trader Rating: (19) Feedback Score: 19 reviews	Sr20 loses power at 5k rpm??? I have an sr20 redtop in my s13 hatch. Bought recently. Factory turbo running 7 psi. Fmic, bov, exhaust, intake. Car pulls fine and runs good until it hits 5k rpm. Then it is still smooth, it just doesnt pull anymore as rpm climbs to the redline at 6500. Any ideas on what could be going on? I did a boost leak check and didnt find any. However I did hear air leaking from the valve cover breather. Any ideas? I also know the car runs rich.

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03-18-2013, 11:00 PM	#2
OrangeVirus1 BANNED Join Date: Jan 2013 Location: PyongYang DPRK-N. Korea, Province 2 Posts: 1,236 Trader Rating: (0) Feedback Score: 0 reviews	fix the issues. check for boost leaks. turbo could be out of steam by that rpm

03-19-2013, 07:38 AM	#3
cpl dozier Zilvia FREAK! Join Date: Sep 2007 Location: Fultondale, Al. Age: 36 Posts: 1,076 Trader Rating: (19) Feedback Score: 19 reviews	Runs rich because of the bov not being recirculated.

03-19-2013, 11:05 AM	#4
cpl dozier Zilvia FREAK! Join Date: Sep 2007 Location: Fultondale, Al. Age: 36 Posts: 1,076 Trader Rating: (19) Feedback Score: 19 reviews	I am installed a new Walbro fuel pump and problem solved.

03-19-2013, 11:12 AM	#5
spooled240 Post Whore! Join Date: Mar 2008 Location: San Diego, CA Posts: 4,140 Trader Rating: (27) Feedback Score: 27 reviews	check vtec solenoid