b18b oil pressure please help.

[00civicLS]

ok so i got a stock 96 ls engine b18b. when i drive it normal ill have about 30 psi oil pressure at 3000 rpm . but when i drive it hard my oil pressure will drop to 15 psi at 3000 rpm. and at 1000 rpm its less than six. since my digital oil pressure just says low at anyhting below 6. and this happens when its warmed up . im also running castrol 5 30 for oil. pleas help ctv and thanks to everyone who does.

[00civicLS]

really no one on here can answer this.

[LS/Vtec]

oil pump. unless your oil pressure gauge is fucked up. but your oil pressure should be higher when your revving your engine then at idle.