New fullrace turbo kit running ruff. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

l8nightjay · 08-01-2016, 08:32 PM

Ok so here's the basics before the keyboard cowboys run crazy, really ne need some help.
New installed full race turbo kit running a gt3071r twin scroll turbo kit, with nistune, and all the supporting mods. I did have a vacuum leak that i found and fixed, but still running ruff. Runs great for about we 10 mins, then feels like she's cutting off/hiccuping around 3000 rpm. My nistune is dialed in for a gt 2871r turbo with same mods. I don't know if my timing is off, fuel pressure regulator is running lean/rich, or the tune is fucked, but this is my daily so I need to figure it out to get to work, and don't have 700 bucks for a dyno atm. What should I do? My plugs are colder, got a giant fuel pump, rocking small 770 cc injectors, my Hugo wide band is being a bitch so that's no help if I'm rich out lean. Sorry but going crazy over here in Oregon trying to drive my toy. Any help would be awesome!!!

KAT-PWR · 08-01-2016, 08:39 PM

How is your wideband "being a bitch"

cotbu · 08-01-2016, 09:57 PM

Pull code's from nistune, get logs, see if you can or anyone can spot something obvious.
Check timing with light. Read sparkplug's.
Test the wideband sensor. Boost leak test.

Sent from my SM-N910T using Tapatalk

08-01-2016, 08:32 PM	#1
l8nightjay Leaky Injector Join Date: Aug 2006 Location: Eugene, Oregon Age: 42 Posts: 98 Trader Rating: (0) Feedback Score: 0 reviews	New fullrace turbo kit running ruff. Ok so here's the basics before the keyboard cowboys run crazy, really ne need some help. New installed full race turbo kit running a gt3071r twin scroll turbo kit, with nistune, and all the supporting mods. I did have a vacuum leak that i found and fixed, but still running ruff. Runs great for about we 10 mins, then feels like she's cutting off/hiccuping around 3000 rpm. My nistune is dialed in for a gt 2871r turbo with same mods. I don't know if my timing is off, fuel pressure regulator is running lean/rich, or the tune is fucked, but this is my daily so I need to figure it out to get to work, and don't have 700 bucks for a dyno atm. What should I do? My plugs are colder, got a giant fuel pump, rocking small 770 cc injectors, my Hugo wide band is being a bitch so that's no help if I'm rich out lean. Sorry but going crazy over here in Oregon trying to drive my toy. Any help would be awesome!!!

08-01-2016, 08:39 PM	#2
KAT-PWR Nissanaholic! Join Date: Dec 2011 Location: US Posts: 2,040 Trader Rating: (11) Rides Gallery: KAT-PWR Feedback Score: 11 reviews	How is your wideband "being a bitch" __________________ MRP Manufacturing

08-01-2016, 09:57 PM	#3
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 50 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	Pull code's from nistune, get logs, see if you can or anyone can spot something obvious. Check timing with light. Read sparkplug's. Test the wideband sensor. Boost leak test. Sent from my SM-N910T using Tapatalk __________________ LoverTechnologies "Half Broken Things!"