Need more HP, water/methanol injection - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

moses · 06-22-2009, 02:01 AM

Hey guys I got a sr with a gt2871r w/ 64 trim with all supporting mods and jwt j3 cams. I dynoed at 356hp and I need a little more power to beat a friend. I got the intake and exaust done so all I have left to do is build the engine but I dont really want to yet. I was thinking of doing a water methanol injection but I dont know much about it. I know it will cool the combustion chamber which means I can up the boost but I dont know how to tune for it and what my air/fuel ratios to be safe would be. I guess what I am asking is how much power could I get out of it and how would I tune for it since I have a afc neo and a wideband o2 sensor? Can anyone help me out?

06-22-2009, 02:01 AM	#1
moses Zilvia Junkie Join Date: Mar 2005 Location: Jacksonville, ar Age: 38 Posts: 555 Trader Rating: (2) Rides Gallery: moses Feedback Score: 2 reviews	Need more HP, water/methanol injection Hey guys I got a sr with a gt2871r w/ 64 trim with all supporting mods and jwt j3 cams. I dynoed at 356hp and I need a little more power to beat a friend. I got the intake and exaust done so all I have left to do is build the engine but I dont really want to yet. I was thinking of doing a water methanol injection but I dont know much about it. I know it will cool the combustion chamber which means I can up the boost but I dont know how to tune for it and what my air/fuel ratios to be safe would be. I guess what I am asking is how much power could I get out of it and how would I tune for it since I have a afc neo and a wideband o2 sensor? Can anyone help me out? __________________ Thats what I said