Oil pressure at idle?

WankelsRevenge · 05-21-2013, 04:19 PM

While driving my car the other day I was stopped at a red light and noticed my oil pressure seemed to be really low, like right below the 30 mark. Once I started moving again and had it a little higher in the RPM range it seemed like it picked right up. Does anyone know what the oil pressure should be at idle? Im running a mostly stock setup so none of my mods should make a difference Im thinking.

mazpower · 05-21-2013, 04:26 PM

25-40 is ok for idle, it all depends on what weight oil you're running. Also I wouldn't trust the stock Mazda oil pressure sending unit, it's known to fail.

vex · 05-22-2013, 08:15 PM

Quote:

Originally Posted by mazpower

25-40 is ok for idle, it all depends on what weight oil you're running. Also I wouldn't trust the stock Mazda oil pressure sending unit, it's known to fail.

Truth.

***TitaniumTT*** · 05-22-2013, 10:01 PM

Yeah, that.... unless it's a quality aftermkt piece, I wouldn't put faith in the stock unit after so manyyears....

WankelsRevenge · 05-23-2013, 05:18 PM

After reading all this I think Im gonna get an aftermarket gauge here soon. Luckily a guy I work with is parting out one of his race cars so Im gonna try and scoop some of his gauges.

My5ABaby · 05-23-2013, 05:55 PM

I would agree a good aftermarket gauge will help. That said, my stock gauge ('86) is pretty much dead on with my aftermarket gauge.

05-21-2013, 04:26 PM	#2
mazpower Rawr Bearclaw Join Date: Feb 2008 Location: The Souf iTrader: (1) Posts: 197 Rep Power: 17	25-40 is ok for idle, it all depends on what weight oil you're running. Also I wouldn't trust the stock Mazda oil pressure sending unit, it's known to fail. __________________ Illicit Performance Rotary building, porting, tuning, chassis dyno services www.illicitperformance.com

05-22-2013, 10:01 PM	#4
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	Yeah, that.... unless it's a quality aftermkt piece, I wouldn't put faith in the stock unit after so manyyears.... __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

05-23-2013, 05:55 PM	#6
My5ABaby Sigh..... Join Date: Feb 2008 Location: Murfreesboro, TN iTrader: (6) Posts: 2,377 Rep Power: 19	I would agree a good aftermarket gauge will help. That said, my stock gauge ('86) is pretty much dead on with my aftermarket gauge. __________________ 1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present."