rb25 problem - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

240sxwanted · 09-21-2010, 05:57 PM

Ok ive noticed that when my rb25 is not warmed up all the way, it pulls nicely and doesn't bog or lag as mush as when the engine is warmed up. When its semi cold i can get on the gas and it wont bog and lag. When the temperature needle is at the halfway point, i hit full throttle and it seems to pull not as hard as when its not fully warmed up. It also bogs a little. Its pretty much a stock rb25 except for isis intake manifold, fmic, rb25 turbo w/rb20 actuator (10 psi). I also have the stock skyline radiator and some rubber hoses, and has the original spark plugs that came with the engine, if that info helps determine the problem. Anyone else with an rb25 has experienced this?

09-21-2010, 05:57 PM	#1
240sxwanted Zilvia Junkie Join Date: Mar 2009 Location: Santa Fe, NM Posts: 316 Trader Rating: (11) Feedback Score: 11 reviews	rb25 problem Ok ive noticed that when my rb25 is not warmed up all the way, it pulls nicely and doesn't bog or lag as mush as when the engine is warmed up. When its semi cold i can get on the gas and it wont bog and lag. When the temperature needle is at the halfway point, i hit full throttle and it seems to pull not as hard as when its not fully warmed up. It also bogs a little. Its pretty much a stock rb25 except for isis intake manifold, fmic, rb25 turbo w/rb20 actuator (10 psi). I also have the stock skyline radiator and some rubber hoses, and has the original spark plugs that came with the engine, if that info helps determine the problem. Anyone else with an rb25 has experienced this? Last edited by 240sxwanted; 09-21-2010 at 08:44 PM..