above 3k... hesitation and choking - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

s13coupedrfter · 07-23-2006, 02:21 AM

I'm with ranger240 on this one, seen many posts with the same problem and the same fix. You said you just got the swap so maybe a hose clamp was overlooked. Around 3000 rpm is when the stock turbo starts to make boost and you could be bleeding some boost pressure out. Also, replace the fuel filter with the z32 one. Chances are the fuel filter hasn't been changed in a very long time and get a higher capacity fuel pump. I wouldn't trust the stock fuel pump once you start raising the boost. Wahlboro pumps go for 100-130 bucks and are easy to install. G/L

07-23-2006, 02:21 AM	#1
s13coupedrfter Zilvia Addict Join Date: Aug 2005 Location: Socal Posts: 839 Trader Rating: (8) Feedback Score: 8 reviews	I'm with ranger240 on this one, seen many posts with the same problem and the same fix. You said you just got the swap so maybe a hose clamp was overlooked. Around 3000 rpm is when the stock turbo starts to make boost and you could be bleeding some boost pressure out. Also, replace the fuel filter with the z32 one. Chances are the fuel filter hasn't been changed in a very long time and get a higher capacity fuel pump. I wouldn't trust the stock fuel pump once you start raising the boost. Wahlboro pumps go for 100-130 bucks and are easy to install. G/L