racing oil -read before you flame! - Page 2 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

l adam l · 08-21-2014, 12:21 PM

Quote:

Originally Posted by Kingtal0n

You want oil to pass 212*F to remove water molecules.
Engines that routinely fail to hit those oil temps build up water over time in the oil, and experience premature wear and tear. Like weekend cars that only see the grocery store. this is well know since the 60's when the idea of lower temperature thermostats became a "high performance notion". There are many books about the subject, some by "david vizard" and " smokey Yunick" iirc that document peak power at temperatures right around 212*F coolant.

Sae 20 only keeps it's lubricating properties till about 212*F... doesn't have anything to do with water in your oil...doubt he'd be drifting it if that were the case. Engine wouldn't last long with no lube

Tom N · 08-21-2014, 12:27 PM

Zinc doesn't clog cats, phosphorus does. But the phosphorous is on the same molecule as the zinc. Modern commercial oils have reduced the amount of ZDDP in oils for this reason. Race oils tend to have a higher ZDDP content as it serves its purpose but they don't have the detergents and require being changed more frequently.
In your race engine this is generally done anyways.
I run nothing but a race oil in my toy cars. I prefer Brad Penn 20w50 high zinc but there are several good race oils like Amsoil and VR1.
in my every day truck I use Walmart oil as any conventional oil will do its job in a car that's not driven hard and makes minimal power.

And yes the "w" stands for winter not weight.

l adam l · 08-21-2014, 12:29 PM

Quote:

Originally Posted by Tom N

Zinc doesn't clog cats, phosphorus does. But the phosphorous is on the same molecule as the zinc. Modern commercial oils have reduced the amount of ZDDP in oils for this reason. Race oils tend to have a higher ZDDP content as it serves its purpose but they don't have the detergents and require being changed more frequently.
In your race engine this is generally done anyways.
I run nothing but a race oil in my toy cars. I prefer Brad Penn 20w50 high zinc but there are several good race oils like Amsoil and VR1.
in my every day truck I use Walmart oil as any conventional oil will do its job in a car that's not driven hard and makes minimal power.

And yes the "w" stands for winter not weight.

^^^^this!! Way to sum it up

Kingtal0n · 08-22-2014, 11:51 AM

Weight, wait. I mean wait, weight does apply here. Weight, that is, the molecules themselves are heavier, when the numbers start going up. SAE30 oil has shorter chains then SAE50 right? The carbon chains themselves would need to be longer, which adds carbon atoms, which adds mass, per unit chain.

bigger longer chains offer perhaps durability of structure. cleaving one for instance will yield end product chains that are longer since the starting material was longer when compared to a lighter chain.
On the other hand, they are larger, so they would find it perhaps more difficult to be moved within the oiling system of an internal combustion engines, for a various number of reasons. As the length of the chains approaches infinity what happens to the ability of the oil pump to move them?

I never said anything about the W on the bottle, and was not implying it here.

Mr.Doback · 08-22-2014, 12:11 PM

Quote:

Originally Posted by Tom N

Zinc doesn't clog cats, phosphorus does. But the phosphorous is on the same molecule as the zinc. Modern commercial oils have reduced the amount of ZDDP in oils for this reason. Race oils tend to have a higher ZDDP content as it serves its purpose but they don't have the detergents and require being changed more frequently.
In your race engine this is generally done anyways.
I run nothing but a race oil in my toy cars. I prefer Brad Penn 20w50 high zinc but there are several good race oils like Amsoil and VR1.
in my every day truck I use Walmart oil as any conventional oil will do its job in a car that's not driven hard and makes minimal power.

And yes the "w" stands for winter not weight.

Pretty sure I thought I just fell back into Pelican Parts forums....you sure you don't drive a 911?

You would be praised in their oil thread for the simplicity.

Tom N · 08-22-2014, 12:19 PM

Quote:

Originally Posted by Mr.Doback

Pretty sure I thought I just fell back into Pelican Parts forums....you sure you don't drive a 911?

You would be praised in their oil thread for the simplicity.

No sir but I wish I did.

Just a old time DSM guy who bought his daughter a 98 240sx and is building it up with her. She for some reason likes the kouki better than DSM's.
Kids these days...

bataangpinoy · 08-22-2014, 05:49 PM

Quote:

Originally Posted by Mr.Doback

Pretty sure I thought I just fell back into Pelican Parts forums....you sure you don't drive a 911?

You would be praised in their oil thread for the simplicity.

lolololol toofunny

unometeeter · 09-07-2014, 06:24 PM

i used to use ams oil dominator, then i switch to 300v no problems so far

08-21-2014, 12:27 PM	#32
Tom N Zilvia Addict Join Date: Oct 2012 Location: SW Florida Posts: 746 Trader Rating: (1) Feedback Score: 1 reviews	Zinc doesn't clog cats, phosphorus does. But the phosphorous is on the same molecule as the zinc. Modern commercial oils have reduced the amount of ZDDP in oils for this reason. Race oils tend to have a higher ZDDP content as it serves its purpose but they don't have the detergents and require being changed more frequently. In your race engine this is generally done anyways. I run nothing but a race oil in my toy cars. I prefer Brad Penn 20w50 high zinc but there are several good race oils like Amsoil and VR1. in my every day truck I use Walmart oil as any conventional oil will do its job in a car that's not driven hard and makes minimal power. And yes the "w" stands for winter not weight. __________________ 98 240sx w/ S15 SR20DET, T2 20g, 11.22 @ 124.98

08-22-2014, 11:51 AM	#34
Kingtal0n Post Whore! Join Date: Jul 2005 Location: South Florida Age: 38 Posts: 4,649 Trader Rating: (17) Feedback Score: 17 reviews	Weight, wait. I mean wait, weight does apply here. Weight, that is, the molecules themselves are heavier, when the numbers start going up. SAE30 oil has shorter chains then SAE50 right? The carbon chains themselves would need to be longer, which adds carbon atoms, which adds mass, per unit chain. bigger longer chains offer perhaps durability of structure. cleaving one for instance will yield end product chains that are longer since the starting material was longer when compared to a lighter chain. On the other hand, they are larger, so they would find it perhaps more difficult to be moved within the oiling system of an internal combustion engines, for a various number of reasons. As the length of the chains approaches infinity what happens to the ability of the oil pump to move them? I never said anything about the W on the bottle, and was not implying it here. __________________ 5.3/4l80e/turbo 240sx playthrough: https://tinyurl.com/turbo240

09-07-2014, 06:24 PM	#38
unometeeter Leaky Injector Join Date: Nov 2011 Location: navarre Age: 28 Posts: 121 Trader Rating: (2) Feedback Score: 2 reviews	i used to use ams oil dominator, then i switch to 300v no problems so far __________________

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode