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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.

 
 
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Old 04-22-2011, 01:40 AM   #1
JustJeff
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Default Lets talk about FD oil pressure regulators
I'm considering doing an FD oil pressure regulator with my s5 13B turbo rebuild. FSM for FC and FD oil pressure:

FC
regulator relief = 71psi
For testing at 3000rpm = 64-78psi

FD
regulator relief = 110psi
For testing at 3000rpm all the FSM says is 51psi (min.)

Is there a downside to increasing oil pressure? Racing Beat in their tech section warns that using their race pressure regulator set 105-115psi will increase oil pump wear. Is this a real concern? Is the extra wear on the oil pump worth the benefit of increased oil pressure?

If I'm increasing oil pressure will the OEM oil cooler still cool as much as needed? Will oil temps rise? I've learned from watercooling my computer that too much pressure/flow can be a bad thing for cooling if the liquid does not stay in the radiator long enough to remove it's heat.






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