Low oil pressure after nitrous backfire
08-06-2011, 11:04 AM
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Low oil pressure after nitrous backfire Hey guys, I have the mods in sig except it was a 150 shot. I also had a LS6 intake and stock tb. I was at the track, went from a dig, took off and pop. It was my first pass on the spray.
Plugs are NGK Br7efs, no window switch, car was dynotuned, etc. I believe the nitrous solenoid was sticky (used kit) causing a delayed activation, in turn, puddling the manifold and popping it.
I have sent the noids off to be looked at. It caused a,fire on the motor. I required a new manifold, new oil pressure sending unit, new map sensor, new maf, new lid and new filter.
Reassembled it with same parts except now a Typhoon 85mm manifold. I got the car redynoed and it made 6 more hp. Everyrhing seems to run fine and the power is there, obviously, as shown by the dyno.
My problem is now my oil pressure is lower. It used to be 40ish at hot idle, 50 cruising. Now its 25ish at a hot idle and 38ish cruising. Oil is Mobil1 10W40 and the bottom end is stock. Any ideas why the drop in oil psi? The new oil sending unit was new and a DBW. Im working on getting a mechanical gauge on it asap. Thanks for any help.
Plugs are NGK Br7efs, no window switch, car was dynotuned, etc. I believe the nitrous solenoid was sticky (used kit) causing a delayed activation, in turn, puddling the manifold and popping it.
I have sent the noids off to be looked at. It caused a,fire on the motor. I required a new manifold, new oil pressure sending unit, new map sensor, new maf, new lid and new filter.
Reassembled it with same parts except now a Typhoon 85mm manifold. I got the car redynoed and it made 6 more hp. Everyrhing seems to run fine and the power is there, obviously, as shown by the dyno.
My problem is now my oil pressure is lower. It used to be 40ish at hot idle, 50 cruising. Now its 25ish at a hot idle and 38ish cruising. Oil is Mobil1 10W40 and the bottom end is stock. Any ideas why the drop in oil psi? The new oil sending unit was new and a DBW. Im working on getting a mechanical gauge on it asap. Thanks for any help.
Last edited by kilgothephenom; 08-06-2011 at 11:14 AM.
