Hi to all,

I have a problem with Bosch 040 pump.
Setup:
Sr20det, ecu EMU, 370ccm, t28 ball bearing.

I replaced fuel pump (previous died) for Bosch 040. I put full tank and drive maybe 200miles and it start to whine like previous one. Right now I got 3/4 of fuel. After 10 minutes of driving whining becomes louder and car goes up to 3000rpm, after another 5 minutes 2000rpm is not possible so going from second to third gear is a dream. But when I let it rest for 5 min or so it starts to work propperly, but after 5 minutes whining and no power starts again.

Any ideas what is wrong? What to check?

Just off the top of my head... You just worked on it, so double check your work and consider using the FSM while you're checking (look here: http://www.nicoclub.com/nissan-service-manuals). Next, fuel pressure matters, so get a gauge and check the fuel pressure before the FPR and on the rail. I assume you have a relatively new fuel filter on there. If not check that to see if it got clogged somehow or just go and replace it.

Welcome to NICO Club!