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Distributor Drive and ZDDP |
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Trader 
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Joined: May/15/2018 Location: Ontario Status: Offline Points: 6909 |
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 Posted: Nov/05/2018 at 8:29am |
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There are few products that will be "perfect" in all ways. I gave suggested parameters to look for.
Rebel, for what your doing, the most economical and worthy product by the spec sheet that is readily available in a 10W30 would be Valvoline VR1. There are others, Amzoil, Joe Gibbs ... Don't get hung up on the API SG - it's obsolete. Just look for the formula specifications that get closest. I like running a 10W40, personal preference. |
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Rebel Machine
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Joined: Jul/03/2007 Location: Western Il Status: Offline Points: 5121 |
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Posted: Nov/05/2018 at 4:24pm |
The wear protection (in PSI) info you listed is very similar in nature to the link I posted. They show the following for the Valvoline VR1: 10W30 Valvoline VR1 Conventional Racing Oil (silver bottle) = 103,505 psi zinc = 1472 ppm phosphorus = 1544 ppm moly = 3 ppm calcium = 2,707 ppm TBN = 7.6 I'll have to keep that in mind. -Steve- |
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Ron321
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Joined: Nov/04/2018 Location: Augusta, Ga. Status: Offline Points: 8 |
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Posted: Nov/06/2018 at 9:33am |
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I have an HEI dist. (After mkt.) on the way for my 71 Javelin 360 ci. . I was told to change the gear and put the original gear on the HEI even though it says harden steel. Any comments?
Ronnie |
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Trader
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Posted: Nov/06/2018 at 11:42am |
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Most every post on the subject - end result seems to be that people with factory original timing covers and factory original gears have the least problems.
Many are scouring wreckers as we type looking for them. So if you have a factory gear available, likely the best way to go.
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Rebel Machine
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Joined: Jul/03/2007 Location: Western Il Status: Offline Points: 5121 |
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Posted: Nov/06/2018 at 4:51pm |
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Got a chance to drive the car around today. That Penn Grade partial synthetic 10w30 oil has much more resistance to flow than the Mobil 1 10W30 synthetic I was using. After running at operating temperature about 30 minutes I took note of the oil pressure gauge. Penn Grade 10W30. Idle = 24 lbs. 1000 RPM = 40 lbs. 1500 RPM = 53 lbs. 2000 RPM = 57 lbs. Prior to that with the Mobil 1 10W30 synthetic this was typical. Idle = 19 lbs. 1000 RPM = 30 lbs. 1500 RPM = 40 lbs. 2000 RPM = 50 lbs. The pressure was high when engine was cold, almost concerned me. 65 lbs at idle. -Steve-
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Trader
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Posted: Nov/06/2018 at 5:20pm |
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The Brad Penn looks good though it took a while to find this:
The only thing I would point out is that the 10W40 has a lower pour point so on a cold engine will lubricate faster and the HTHS or shear is higher so will provide better protection on shear points like cam lobes and timing gears. Don't know why the 10W40's seem to be like this but most are.
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Trader wrote: