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#1
03-04-2024, 05:34 PM
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Oil question
What are you guys using in your race engines?
Brad Penn or VR1?
__________________
 A new best of 9.135 @ 145.4171 Lemans Sport. 72 Lemans Sport. |
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#2
03-04-2024, 07:08 PM
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Oh Boy. I run 20W50 Amsoil in our race engine. And the reason for the heavy oil is bearing and rod clearances. Solid roller.
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68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick. Best so far 10.12@133 mph. 1.43 60 ft. 76 Trans am, TKX .81 o/d, 3.73 Moser rearend, 468 with KRE D-ports, Doug headers, 3" Exh. |
| The Following User Says Thank You to chuckies76ta For This Useful Post: | ||
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#3
03-04-2024, 07:31 PM
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I've been running the VR-1 20/50 for years. Like Chuckie, my clearances are on the looser side.
__________________
 Johnny US Army Retired1978 T/A 463 Pontiac, KRE 74cc 292CFM D-ports, Lunati VooDoo, V-max lifters, TKII, ATM 850 E85 carb, TCI TH-350 race tranny, 3600 converter 3.73 12 bolt 11.63@116.68mph 1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car. 1980 Formula 350 Pontiac back burner project 1972 LeMans 350 Pontiac |
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#4
03-04-2024, 08:06 PM
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I have been using Brad Penn 20w-50 for years. My engine builder wants me to use VR1. So has Brad Penn changed the formula? I know VR1 is less money but I just want to know what everyone is using.
__________________
A new best of 9.135 @ 145.4171 Lemans Sport. 72 Lemans Sport. |
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#5
03-04-2024, 08:25 PM
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I run Penn 10-40
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#6
03-04-2024, 08:44 PM
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I’ve run the vr1 20/50 but lately Mobil one 10/40 might go to vr1 10/30 at some
Point
__________________
1969 carousel red firebird 455, richmond 5 speed 1964 540 gto 1971 lemans sport convertible 1972 Maverick under slow construction |
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#7
03-04-2024, 11:15 PM
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20-50 VR1 for me I heard brad penn took out the good stuff like zinc ddp
and all the break in additives that used to be in it. Check to be sure for your own results. GT |
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#8
03-05-2024, 01:45 AM
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Shaffers, been saying it for awhile. The Best.
This guy did back to back dyno test on a 400ish LS engine on a chassis dyno. Pretty significant numbers for just oil. https://www.youtube.com/watch?v=Zm-AmTkxD_A&t=1119s |
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#9
03-05-2024, 08:32 AM
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I like Motuls ester oil
i run 20-60, which can now only find 10-60 i live in high temps oddly the 20-60 sounds so thin too |
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#10
03-05-2024, 09:00 AM
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10w/30 Lucas race only. I run Bullet .384 lobe, solid flat tappet with 1.8 Ford rockers. 2 on the rods and 2.5 on the mains.
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#11
03-05-2024, 10:03 AM
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Grocery Getter and my new road race engine both use VR-1, 10w-30.
Eric
__________________
"Everybody has a plan until they get punched in the mouth" noted philosopher Mike Tyson Life begins at the end of your comfort zone. “The mind, once stretched by a new idea, never returns to its original dimensions.” |
| The Following User Says Thank You to Elarson For This Useful Post: | ||
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#12
03-05-2024, 10:36 AM
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My engine builder recommended Brad Penn 10-40.
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#13
03-05-2024, 11:21 AM
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Quote:
The oil analysis’s come back the pretty much the same. |
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#14
03-05-2024, 02:44 PM
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VR1 10W30.. But I'm not as fast as some of you guys.
__________________
 3 Generations of "Beach Boys Racing" ! Everybody knows somthin. Nobody knows everything ! 1st time on a dragstrip, 1964. Flagstart ! "Thanks for the entertainment." "Real Indians Don't Wear Bowties" |
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#15
03-05-2024, 06:05 PM
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I dont know. I've been running 10-40 Pennzoil in my street SD and the stocker SD I race, Forever.
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#16
03-05-2024, 09:31 PM
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I need to edit. I'm using 10-30. I was using 10-40 Royal Purple. But when I had my motor on the Dyno, the operator was uncomfortable with how high the oil pressure was with the RP 10-40. We switched to Penn 10-30 and it lowered the oil pressure by quite a bit at high rpm. Idle pressure held the same. I will try to find the info to put real numbers to it
Found it ...dropped about 38psi @ 5000-6000 rpms |
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#17
03-05-2024, 11:58 PM
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Quote:
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#18
03-06-2024, 11:00 AM
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VR1 Synthetic 10-30/20-50 depending on bearing clearance
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#19
03-06-2024, 11:22 AM
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Driven 15W-40 for me
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#20
03-06-2024, 12:12 PM
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VR-1 20w/50 on engines with throw-at-cat-thru-it bearing clearances, and their 10w-30 on stuff thats likely to survive.
__________________
Clutch Guys Matter _______________________________________ 53 Studebaker, 400P/th400/9" 64 F-85 72 4-4-2 Mondello's VO Twister II 84 Hurst/Olds #2449 87 Cutlass Salon 54 Olds 88 sedan |
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