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Stalling Sometimes

4drlvr

By 4drlvr,
in Engines & Forced Induction

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4drlvr Proficient

4drlvr

Posted
Posted (edited)

Hi Guys and Gals,

Lets start off with the issue im having. When i rev the car and let go off the accelerator the car drops rpm (as it normally would) till about 1500 rpm and then goes all the way down to nearly turning off and sometimes just manages to stay on and then come back to normal idle or just turns off......

Second issue is with the new n1 oil pump in the oil pressure stays on the line between 0 and 4 (impressuming 2) when the car is idling and when you rev it, the guage just goes upto just under 4 at normal temp and just above 4 when cold. I presumed that the n1 oil pump should be putting out more oil pressure???? Thoughts??

The car has an rb26dett in it. Mods are 3inch full exhaust, bov(dont ask me wat brand, some japanese brand written in jap), hks pods, n1 oil pump & hks stage 1 cams.

We had to rip out the engine coz the car lost oil pressure so i put in the n1 oil pump and when we started it back up the above mentioned problem is happening.

Cars still at the mechanics shop

Any ideas....... Please help

Rj

Edited by 4drlvr
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Nismoh Enthusiast

Nismoh

Posted
Posted (edited)

grab a mates BOV....through it on...see what happens...could have a pretty monior leak that the comp pics up and tells it to shut down...like when you blow a turbo pipe....its what i discovered with my stock BOV......and by the sounds of it...you could have the equvilent of "home brand" BOV

Edited by Nismoh
Duncan Grand Master

Duncan

Posted
Posted

n1 oil pump runs less pressure than stock, not more - it is designed for sustained high rev use when the standard pump puts too much oil into the head.

around 2-4ish isnt really a problem for oil pressure it depends on the temp of the engine and the wieght of the oil of course

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