Nissan ns25c3 2003 losing power at WOT

[Scud22]

I have a 2003 NS25C3 that gradually loses power after a few minutes at WOT. It will pick back up for a short time then gradually lose power again. Is pumping water as always. Never ran ethanol gas and usually use 93 octane. Any suggestions?

 

[pvanv]

Re: Nissan ns25c3 2003 losing power at WOT

Check your fuel system, from tank vent to pickup to hose (paying particular attention to the o-rings in the connectors), to the fuel pump and finally the carb. You may be "running out of gas" or sucking air into the fuel line. One test is to squeeze the primer bulb when this starts to happen. If that helps, then you need better fuel delivery.

 

[Scud22]

Re: Nissan ns25c3 2003 losing power at WOT

Changed water pump. Impellar had two ears missing. Fixed the problem.