Nistune Forums

Hi evey body, this is my new proyect 240sx S14 with rb25 series 2 swap and my setup is a nistune type 2 in a z32 ecu, 525cc STi injectors Z32 maf intake type greddy Q45 TB and turbo Holset HX40 internals stock.
The question is how many psi can pull with internals stock?

Need some advices because It is my first tune with this type of engine, here is my base bin and log at 15 psi of boost AFR 10.9 on WOT.

Thanks.

wow, 47 leechers on the tune but no answers, only half checked the log file.

psi has no bearing on the internals, RPM and heat does.

These engines like revving but can quickly come apart when the boost is up around 19psi @ 7000+.

keep rpms at 6000, and those little 500cc injectors should be able to supply enough fuel for 2-3psi more before a lean out assuming the fuel pump keeps up. hopefully you installed a large FMIC as it will be needed for extra cooling efficiency to fulfil your quest for more hp.