Brad Penn Oil and the ZDDP Debate

[madmaxx]

It is a slippery slope as to weather a hydraulic roller needs the extra zinc and phosphorous when it comes to performance engines. I wouldn't be concerned about your lexus ls 460 but a stroked small block or a flat tappet, I would have to error on the cautious side and get the zinc/phosphorous either by the oem or supplement.

Additives are consumed over time so theoretically an 800 ppm new oil may be the same as a 1200 ppm after 4K miles.

[CobraEd]

Originally Posted by madmaxx

It is a slippery slope as to weather a hydraulic roller needs the extra zinc and phosphorous when it comes to performance engines. I wouldn't be concerned about your lexus ls 460 but a stroked small block or a flat tappet, I would have to error on the cautious side and get the zinc/phosphorous either by the oem or supplement.

Additives are consumed over time so theoretically an 800 ppm new oil may be the same as a 1200 ppm after 4K miles.

Although the primary need is for the face of the lifters on a flat tappet cam, there is also data out there relative to ZDDP benefits in high performance engines where it minimizes scuffing on the piston skirts. I run it in my sons supercharged 03 Cobra Mustang.


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[madmaxx]

High wear points include the pushrod to rocker arm fulcrum, roller bearings in lifter, lifter roller on camshaft, valve stem to rocker arm. I think I stated this earler most stock cams for example in Mustang 5.0 has a valve spring seat pressure 105 lbs and open pressure of 265 lbs in contrast to some high performance strokers which many of us have with spring pressures of 150 lb seat to 450 lb open for hydraulic rollers and as high 700lb? open for solid rollers. No oil will remedy a bad or overloaded design but will minimize wear.

Originally Posted by CobraEd

Although the primary need is for the face of the lifters on a flat tappet cam, there is also data out there relative to ZDDP benefits in high performance engines where it minimizes scuffing on the piston skirts. I run it in my sons supercharged 03 Cobra Mustang.


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[Bob In Ct]

Yesterday I was in B&B Performance in Branford, CT. They had 12 bottles of Redline's ZDDP additive. They all had sediment on the bottom of the bottle. Some a lot, some not so much. So Patrick, you make a good point. I called Redline regarding the sediment and they told me not to worry about it. They said it would not happen in my crankcase?

Bob

[patrickt]

Originally Posted by Bob In Ct

So Patrick, you make a good point.

And some people thought I was only using my head for a hat rack....

[ERA Chas]

Originally Posted by patrickt

And some people thought I was only using my head for a hat rack....

-No, I actually thought it was just test equipment for roll bar padding...

[RodKnock]

You mean a Crash Test Dummy?

[patrickt]

Originally Posted by ERA Chas

-No, I actually thought it was just test equipment for roll bar padding...

Originally Posted by RodKnock

You mean a Crash Test Dummy?

Now was that really necessary?

[Excaliber]

By the way, I was at a recent Cobra gathering with more than a dozen Cobras there. I think there was ONE other guy, like me, with a single roll bar. The other owners were kind of wondering why I had ONLY one...

[RodKnock]

Originally Posted by Excaliber

By the way, I was at a recent Cobra gathering with more than a dozen Cobras there. I think there was ONE other guy, like me, with a single roll bar. The other owners were kind of wondering why I had ONLY one...

Maybe it was one of those "Dinner With Schmucks" type deals where the "one-roll bar guys" invited the "two-roll bar guys" out for dinner.

[ERA Chas]

Originally Posted by RodKnock

Maybe it was one of those "Dinner With Schmucks" type deals where the "one-roll bar guys" invited the "two-roll bar guys" out for dinner.

Dude, you are on a roll

[ERA Chas]

-Jus sayin'...

[Excaliber]

They made a good point, while THEY were giving folks rides around the track at $20 a pop (money for the club) I was not allowed to take a passenger, so missed out on that part of "community service" and had to sit and watch while they had all the fun.

[patrickt]

Originally Posted by Excaliber

They made a good point, while THEY were giving folks rides around the track at $20 a pop (money for the club) I was not allowed to take a passenger, so missed out on that part of "community service" and had to sit and watch while they had all the fun.

Ernie, what the heck are you talking about?

[RodKnock]

Read Ernie's post about his "recent Cobra gathering" aka "Dinner With Schmucks."

[patrickt]

Oh, I get it. They wouldn't let him take people for a ride around the parking lot because he only had one roll bar. That seems a little excessive -- it's not like he's going around the track with an instructor in the seat next to him. But you know how "dual roll bar" guys can be.

[Excaliber]

I think SAAC-35 will have similiar requirements for some of the track events during that weekend, dual roll bar or no passenger. Being a single kine guy, I'm OK with that.

[patrickt]

Originally Posted by Excaliber

Being a single kind [of] guy, I'm OK with that.

Ahh, you never know. Your own Queen Guienevere could be right around the corner. If she asks for a ride around the parking lot, I say give it to her -- single roll bar or not.

[Bob In Ct]

What happened to the original thread?

Bob

[patrickt]

Originally Posted by Bob In Ct

What happened to the original thread?

This was a successful thread. It accomplished at least 3 goals:

1) It clearly and definitively established the ZDDP levels of the "newer" BP oil.
2) It points out that there is a difference in labeling between the "old" BP oil and the "new" BP oil.
3) It cast a healthy "specter of doubt" over the efficacy of ZDDP supplements.

Yes, I feel good about myself. Of course, I felt that way before I started this thread....