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Re: racing oil
[Re: Quicktree]
#1715891
12/29/14 08:42 PM
12/29/14 08:42 PM
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Joined: Jan 2003
Posts: 338
Montreal Quebec
STROKIE
enthusiast
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enthusiast
Joined: Jan 2003
Posts: 338
Montreal Quebec
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Quote:
Quote:
Quote:
Blatantly plagiarized from Wikipedia:
"The Society of Automotive Engineers (SAE) has established a numerical code system for grading motor oils according to their viscosity characteristics. SAE viscosity gradings include the following, from low to high viscosity: 0, 5, 10, 15, 20, 25, 30, 40, 50 or 60. The numbers 0, 5, 10, 15 and 25 are suffixed with the letter W, designating they are "winter" (not "weight") or cold-start viscosity, at lower temperature. The number 20 comes with or without a W, depending on whether it is being used to denote a cold or hot viscosity grade. The document SAE J300 defines the viscometrics related to these grades."
not accusing you of anything but trying to make a simple thin more complex than it needs to be, ok we get it you are a very smart guy. a lot smarter than us who call it weight. but guess what, we don't care and have fun with your science.
May be a dumb question..
Why Mobil 1 Racing have 0W-30 and 0w-50 normally if 0W are for winter why use it in racing engine,most racing car are use during warm weather... 
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Re: racing oil
[Re: STROKIE]
#1715892
12/29/14 10:16 PM
12/29/14 10:16 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Some oils just hate alky--they look bad quick
Brad Penn does very well with alky and is most alky users first choice
The new Kendal GT1--I may be wrong I think it is Conoco from Texas now--seems to do well with alky and is pretty cheap at around $35 case range--I have been buying it from wholesaler, running in alky injected and it is doing good so far
I like the Penn but the price is just too high for as much as I go through--
I have no doubt Walmart oil would do OK too--this is just one of those topics that no matter what--folks are not going to agree on anything about it.
I like learning but that guy lost me when he said he believed things David Vizard said--
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Re: racing oil
[Re: ]
#1715893
12/29/14 10:31 PM
12/29/14 10:31 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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I always ran Mobil 1 15w50 red cap in my BB flat tappet engine for 19 years. My Gen III will probably get Mobil 1 0W40 because of the tight bearing clearances and oil squirters. I also believe that the way the oil returns to the pan on these things a lighter oil is needed.
Mopar to the bone!!!
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Re: racing oil
[Re: NOM36]
#1715896
12/30/14 06:44 AM
12/30/14 06:44 AM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
I would like to see what people think about oils and alcohol.
Seems like there is a debate about dilution and non-diluted.
depends on how the car is tuned imo. I have run alky injected and carb. if it's rich it will dilute any oil if it's tuned you can't tell the difference between gas. 
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Re: racing oil
[Re: ]
#1715897
12/30/14 09:20 AM
12/30/14 09:20 AM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
mopar
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mopar
Joined: May 2014
Posts: 503
Idaho
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Quote:
Some oils just hate alky--they look bad quick
Brad Penn does very well with alky and is most alky users first choice
The new Kendal GT1--I may be wrong I think it is Conoco from Texas now--seems to do well with alky and is pretty cheap at around $35 case range--I have been buying it from wholesaler, running in alky injected and it is doing good so far
I like the Penn but the price is just too high for as much as I go through--
I have no doubt Walmart oil would do OK too--this is just one of those topics that no matter what--folks are not going to agree on anything about it.
I like learning but that guy lost me when he said he believed things David Vizard said--
I heard Red Line does well with alcohol. Any truth to that?
It seems it was a bit cheaper than the Penn oil too. But that's been a little bit.
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable! 
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Re: racing oil
[Re: 1320Dart]
#1715898
12/30/14 12:17 PM
12/30/14 12:17 PM
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Joined: Jan 2003
Posts: 9,986
Frostbitefalls MN (Rocky&Bullw...
gregsdart
master
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master
Joined: Jan 2003
Posts: 9,986
Frostbitefalls MN (Rocky&Bullw...
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20w50 Brad Penn suits my race motor because I run it hot with fairly large clearances of .003 rods and .0035 mains plus high temps. I warm the motor past 210 for the start of the day and the oil temp goes over 200. I stage at 185 and the oil temp is still above 200 at the line. Injectors are VERY fat at idle but the heat boils off the alky that gets in the oil because Methanol boils at 149 degrees. Water boils out as well with no problems or milking ever.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: racing oil
[Re: 77DragracerR/T]
#1715901
12/31/14 11:52 AM
12/31/14 11:52 AM
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Joined: Jul 2010
Posts: 2,422
Pittsburgh PA
Eric
top fuel
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top fuel
Joined: Jul 2010
Posts: 2,422
Pittsburgh PA
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I ran 15w50 Mobil1 for years with a flat tappet and I think the cam is about the only thing I've never broke..  Now since I put the motor back in I am running Brad Penn 10w30 and so far I really like the stuff.
5.53 @ 125 1/8th on the launch control..more left in her!
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Re: racing oil
[Re: BuckeyeBrawler]
#1715906
01/01/15 02:38 PM
01/01/15 02:38 PM
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Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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Brad Penn is a semi synthetic...use it...and never look back. The results are what the are. It works.
As an FYI side,on the alcohol we run BP70W in the blown alky cars, best stuff yet.
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: racing oil
[Re: CompWedgeEngines]
#1715907
01/01/15 03:38 PM
01/01/15 03:38 PM
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Joined: Apr 2005
Posts: 2,128
Salt Lake City
camastomcat
top fuel
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top fuel
Joined: Apr 2005
Posts: 2,128
Salt Lake City
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I used to run 5-50 synthetic, Mobile 1, Castrol, etc. Been using Brad Penn semi synthetic 10-30 after break in, the last couple of years. I also run a 3 quart accumulator, .003 rods, .0035 mains, with no issues from oil. I like it. I'm at 80+#'s through the lights at 8000 RPM, oil temp at 140-160. I couldn't care less about water temp at the starting line unless it's overheating. I also have a pan heater and won't make a pass until oil temp is 120. BTW viscosity is measured in centapoise@70 degrees F(cps), not weight. It doesn't matter to me what you want to call it, but that is right.
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Re: racing oil
[Re: CompWedgeEngines]
#1715908
01/01/15 03:54 PM
01/01/15 03:54 PM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
mopar
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mopar
Joined: May 2014
Posts: 503
Idaho
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Quote:
Brad Penn is a semi synthetic...use it...and never look back. The results are what the are. It works.
As an FYI side,on the alcohol we run BP70W in the blown alky cars, best stuff yet.
What would you use in a carbureted alcohol motor?
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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