Oil pressure?

mrb1 · Post by **mrb1** » Sat Sep 07, 2013 10:54 pm

What oil pressure should I expect to see on a Starion 4G63 single cam engine? Like cold and hot, I do realize the grade of oil has some effect.

enthuzed · Post by **enthuzed** » Mon Sep 09, 2013 11:50 am

80-100 psi cold & 60-80 psi hot, both at idle Mark

Lummy · Post by **Lummy** » Mon Sep 09, 2013 8:48 pm

Yep, by "text book" standards, those figures are ridiculously high, but the 4G63 is known for high oil pressures. I don't quite have the figures listed above, but not far off them either. It's just the way these engines are.

A general rule of thumb is 10psi per 1000rpm, so you can see that the 4G63 is WAY above the "rule".

enthuzed · Post by **enthuzed** » Tue Sep 10, 2013 12:04 am

Yes it is such, and that's with things like:

Standard engine including balance shafts
Standard head bolts (not oversized ARP ones)
Standard spec oil, a quality 25w50 brew.

ProZac · Post by **ProZac** » Tue Sep 10, 2013 7:43 am

Isn't 25w50 a little thick for our motors?

enthuzed · Post by **enthuzed** » Tue Sep 10, 2013 9:20 am

Sorry I meant 20w50. Seeing if anyone is paying attention :wink:

Lummy · Post by **Lummy** » Tue Sep 10, 2013 5:57 pm

I've always used 15/50 in my built 4G63 TC

mrb1 · Post by **mrb1** » Sun Sep 22, 2013 8:07 am

Thanks for the info.

Austarion

Oil pressure?

Oil pressure?

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