STD Tuning Engine Oil pressure... How much would be too much?

Oil pressure... How much would be too much?

Oil pressure... How much would be too much?

 
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Biohazard
Smokin like a champ!

376
06-21-2011, 06:49 PM #6
Last time I've heard of a problem from too much oil pressure, was a full race SBF that ran like 140+psi on the circle track. It actually spun a bearing if I remember correctly (about 15 years ago?). Do the front/rear main seals have to deal with full oil pressure or just residual/splash? I know there is pressurized oil to the IP, via external line (plastic), also the timing chain retaining nut/washer opposite of the IP has to seal against oil pressure. Cam doesn't have actual bearings, so thats fine. Rod and main bearings may not like it if it goes too high. Sadly the only way to find out sometimes ends up being expensive. Would the piston squirters handle increased pressure? Head gasket? Thats all I got for now. Hope it works out ok.

82 300SD aka The Flyin Pumpkin (Gone): 7.5mm super M-pump, T3 60 trim turbo, Coldish air intake, A/W intercooler, propane injection, SW Boost and EGT gauges, Monark 265 nozzles, ported/polished cylinder head.

84 Euro 300D 4 sp: White with black trunk and hood. Blue cloth interior. Manual everything. 300DT front swaybar. C320 17" wheels. Now with the Flyin Pumpkins engine! 
Biohazard
06-21-2011, 06:49 PM #6

Last time I've heard of a problem from too much oil pressure, was a full race SBF that ran like 140+psi on the circle track. It actually spun a bearing if I remember correctly (about 15 years ago?). Do the front/rear main seals have to deal with full oil pressure or just residual/splash? I know there is pressurized oil to the IP, via external line (plastic), also the timing chain retaining nut/washer opposite of the IP has to seal against oil pressure. Cam doesn't have actual bearings, so thats fine. Rod and main bearings may not like it if it goes too high. Sadly the only way to find out sometimes ends up being expensive. Would the piston squirters handle increased pressure? Head gasket? Thats all I got for now. Hope it works out ok.


82 300SD aka The Flyin Pumpkin (Gone): 7.5mm super M-pump, T3 60 trim turbo, Coldish air intake, A/W intercooler, propane injection, SW Boost and EGT gauges, Monark 265 nozzles, ported/polished cylinder head.

84 Euro 300D 4 sp: White with black trunk and hood. Blue cloth interior. Manual everything. 300DT front swaybar. C320 17" wheels. Now with the Flyin Pumpkins engine! 

 
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Messages In This Thread
Oil pressure... How much would be too much? - by 300D50 - 06-21-2011, 12:10 AM
RE: Oil pressure... How much would be too much? - by Captain America - 06-21-2011, 03:32 PM
RE: Oil pressure... How much would be too much? - by 300D50 - 06-21-2011, 04:25 PM
RE: Oil pressure... How much would be too much? - by Captain America - 06-21-2011, 04:52 PM
RE: Oil pressure... How much would be too much? - by 300D50 - 06-21-2011, 05:45 PM
RE: Oil pressure... How much would be too much? - by Biohazard - 06-21-2011, 06:49 PM
RE: Oil pressure... How much would be too much? - by 300D50 - 06-21-2011, 07:17 PM
RE: Oil pressure... How much would be too much? - by dieselboy - 06-21-2011, 07:56 PM
RE: Oil pressure... How much would be too much? - by Captain America - 06-21-2011, 10:43 PM
RE: Oil pressure... How much would be too much? - by led-panzer - 06-21-2011, 11:02 PM
RE: Oil pressure... How much would be too much? - by Captain America - 06-22-2011, 04:02 PM
RE: Oil pressure... How much would be too much? - by 300D50 - 06-21-2011, 08:16 PM
RE: Oil pressure... How much would be too much? - by yankneck696 - 06-22-2011, 05:08 AM
RE: Oil pressure... How much would be too much? - by 300D50 - 06-23-2011, 08:34 AM
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