Street / Strip Guys, What Oil and Why?

Posted By: The Cuda Guy

Street / Strip Guys, What Oil and Why? - 07/16/10 07:44 AM

Hey guys and gals, what are you guys running for Oil wt, what type and why. The application is a stroked RB with solid cam flat lifter, with a fair ammount of track time. Thanks.

Don

Posted By: moparniac

Re: Street / Strip Guys, What Oil and Why? - 07/16/10 08:38 AM

Brad Penn. why? cause he is a good friend of mine

Posted By: smokinwoody

Re: Street / Strip Guys, What Oil and Why? - 07/16/10 12:16 PM

Royal Purple in the race car...cause it works

Castrol Synthetic in my street car cause I like it

Posted By: MR_P_BODY

Re: Street / Strip Guys, What Oil and Why? - 07/16/10 12:20 PM

Look for something with added zink for wear... weight
would depend on the clearances

Posted By: therocks

Re: Street / Strip Guys, What Oil and Why? - 07/16/10 12:25 PM

We run 20 50 Kendall GT1.Both BBs are street strip.My kids is an oe 62 413 and mine a super built 446.My machinist who has been in buisness fro 35 years told me the GT1 has more Zinc than other oils.My .588 solid flat has been in 9 years and no problems.The kids Hughes hyd cam 10 years.Rocky

Posted By: 68LAR

Re: Street / Strip Guys, What Oil and Why? - 07/16/10 01:03 PM

15W 40 Rotilla T with 2 bottles of STP. Why? Because I don't want to wipe out another cam.

Posted By: Cab_Burge

Re: Street / Strip Guys, What Oil and Why? - 07/16/10 03:42 PM

Valvoline 5W20WT because it flows faster on start up than the heavier oils

Now that all of the street oils have low zinc I would add(with a flat tappet lifter cam) a bottle of zinc additive like Comp Cams or ZDDP

Posted By: Thumperdart

Re: Street / Strip Guys, What Oil and Why? - 07/16/10 06:15 PM

I run 4 quarts of Valvoline 5w30 mixed w/two quarts of mobile one synth......not sure why.

Posted By: moparniac

Re: Street / Strip Guys, What Oil and Why? - 07/16/10 06:36 PM

put that solid roller in!

Posted By: Moparnut426

Re: Street / Strip Guys, What Oil and Why? - 07/16/10 06:42 PM

Brad Penn,

Why, Its just good damn oil. period.

Kasey

Posted By: BradH

Re: Street / Strip Guys, What Oil and Why? - 07/16/10 10:27 PM

I won't get into a "brand thing" here (seems like oil, politics and religeon are three topics that should be avoided in any public discussions), but will suggest strongly that whatever you run on the street should be at least a 15w40 w/ a solid flat-tappet... and 15w50 or 20w50 might be better for the warm months when it thins out after miles of street use.

Posted By: The Cuda Guy

Re: Street / Strip Guys, What Oil and Why? - 07/17/10 02:53 PM

Quote:

put that solid roller in!

Sledge,

LOL!!! Im leaving it in the hands of the builder... He recommends solid/flat for the street, I trust him.

Thanks for the comments guys. Just wanted to see what everyone was runnin/opinions.

Don

Posted By: maximum entropy

Re: Street / Strip Guys, What Oil and Why? - 07/17/10 03:10 PM

valvoline vr1 10w-30 here. 496 big hydraulic f/t cam in a hot climate. 0 issues, so i keep using it. i tried castrol syntec, and that was good also. bottom line, use a major brand that touts a high zddp content, and/or use an additive that claims that also. and don't forget to change it once in a while. and make sure you have enough. and it wouldn't hurt to install a gigantic o/p warning light. i did. so did my racing buddy. first time out with the light, it came on after launch every run. he said it's prolly been like that for years, so, against my vehement disagreement, he disconnected it. it blowed up about a month later. the engine was reduced to individual molecules. you couldn't find a paperweight in the debris.

Posted By: moparniac

Re: Street / Strip Guys, What Oil and Why? - 07/17/10 04:09 PM

Quote:

Quote:

put that solid roller in!

Sledge,

LOL!!! Im leaving it in the hands of the builder... He recommends solid/flat for the street, I trust him.

Thanks for the comments guys. Just wanted to see what everyone was runnin/opinions.

Don

im just funnin with ya

Posted By: The Cuda Guy

Re: Street / Strip Guys, What Oil and Why? - 07/17/10 04:26 PM

Quote:

Quote:

Quote:

put that solid roller in!

Sledge,

LOL!!! Im leaving it in the hands of the builder... He recommends solid/flat for the street, I trust him.

Thanks for the comments guys. Just wanted to see what everyone was runnin/opinions.

Don

im just funnin with ya

I know you like to break my balls!

What weight of oil you running in your Dart?

Don

Posted By: moparniac

Re: Street / Strip Guys, What Oil and Why? - 07/17/10 04:43 PM

20/50 Brad Penn...

Posted By: Big Squeeze

Re: Street / Strip Guys, What Oil and Why? - 07/17/10 04:56 PM

I run el cheapo Parts Master oil with Comp Cams break in additive......

Posted By: 383man

383man - 07/17/10 05:14 PM

Valvoline 20w50 racing oil in mine and my sons street cars. Ron

Posted By: Thumperdart

Re: Street / Strip Guys, What Oil and Why? - 07/17/10 05:32 PM

Quote:

I won't get into a "brand thing" here (seems like oil, politics and religeon are three topics that should be avoided in any public discussions), but will suggest strongly that whatever you run on the street should be at least a 15w40 w/ a solid flat-tappet... and 15w50 or 20w50 might be better for the warm months when it thins out after miles of street use.

Interesting statement........What are you basing the thicker oils on...more zinc? I have a roller so that`s not much of an issue but I run fairly loose bearing clearances like .0024-.0026 on the rods and .0030-.0034 on the mains and run 5w30 oils mostly. It`s summer here in the desert w/100+degrees and my pressure is rock solid....

Posted By: jamesc

Re: Street / Strip Guys, What Oil and Why? - 07/17/10 05:39 PM

Quote:

I run fairly loose bearing clearances like .024-.026 on the rods and .030-.034 on the mains

Posted By: Thumperdart

Re: Street / Strip Guys, What Oil and Why? - 07/17/10 05:43 PM

Quote:

Quote:

I run fairly loose bearing clearances like .024-.026 on the rods and .030-.034 on the mains

Fixed it.........got home at 4:00 in the morning,just got up and have only had a 1/2 cup of mud.

Posted By: CompSyn

Re: Street / Strip Guys, What Oil and Why? - 07/18/10 04:01 AM

New engine:

1st) 50-miles with Brad Penn SAE-30 Break-In Oil - For partial synthetic with lots of zinc/phos additives.

2nd) 1500-miles with Brad Penn 0W-30 - For partial synthetic with lots of zinc/phos additives. OW-30 for optimum start up protection in a 30 grade oil.

3rd) After approx. 1550-mile break-in, continued use with Amsoil 10W-30 Dominator Race Oil - For PAO/Ester synthetic blend, street level detergents and lots of zinc/phos additives.

Motor oil viscosity is selected by using the rule of thumb: 10psi per 1000rpm of engine operation. At 6000rpms, you want around 60psi. If you have 80psi, your oil is too thick.

Possible effects of using motor oil that is too thick:

Lower mpgs.
Higher than normal oil pressure.
Less oil flow.
More heat.
More drag (horsepower robbing)
Possible increase in wear during colder climates.
Could possibly shear more?

Posted By: fourgearsavoy

Re: Street / Strip Guys, What Oil and Why? - 07/18/10 03:14 PM

I broke mine in with Brad Penn 30 wt. and switched over to Valvoline VR1 20-50 for the summer.I will switch to 10-40 in September.
Gus

Posted By: The Cuda Guy

Re: Street / Strip Guys, What Oil and Why? - 07/18/10 05:33 PM

Thanks guys sounds like after break in I should be running a 20w 50 in the summer and a 15w 40 in the cooler months. Thanks for the feedback guys.

Don

Posted By: BradH

Re: Street / Strip Guys, What Oil and Why? - 07/20/10 03:15 PM

Quote:

Quote:

... but will suggest strongly that whatever you run on the street should be at least a 15w40 w/ a solid flat-tappet... and 15w50 or 20w50 might be better for the warm months when it thins out after miles of street use.

Interesting statement........What are you basing the thicker oils on...more zinc?

No, I'm thinking along the lines of the different grades' viscosities at different operating temperatures and HTHS (High Temperature High Shear) ratings.

There is a strong correlation between HTHS ratings and reduction of bearing & cam wear from what I've been able find out. The best HTHS ratings (5+) are found in heavier (i.e. 20w50) grades and I haven't seen any of the 10w30 (or similar) show a HTHS rating even in the 4s IIRC.

FWIW, a lot of the HTHS "stuff" came from Charles Navarro and his extensive testing of oils in air-cooled Porche 4-cyl. engines trying to identify oils that showed good resistance to cam & lifter wear when the zinc levels were reduced in common passenger car oils.

Posted By: bigsbigelow

Re: Street / Strip Guys, What Oil and Why? - 07/20/10 03:26 PM

Rotella straight 30. Why, because 15/40 was too heavy causing too much oil pressure and it is good for diesel engines that have million mile service intervals. It must be good enough for my gas engine.

Posted By: Locomotion

Re: Street / Strip Guys, What Oil and Why? - 07/20/10 04:13 PM

Speaking of Rotella straight 30 weight, I just broke in a race engine with 4 qts of the conventional Rotella 30w and 2 qts of old castrol 40wt race oil mixed in. Made 4 passes on it at a test & tune and the car ran "ok".

Switched to my usual Amsoil 5w-20 Dominator synthetic racing oil and went racing this past weekend with no other changes. After I started it up, I had to lower the idle rpm by about 2-300! Then compensating for the weather conditions, the car ran AT LEAST .10 faster! Oil pressure was only down slightly (surprisingly) between the straight weight and 5w-20, even after it's hot. Not sure what my engine builder sets the clearances to.

Amsoil had a bulletin issued a year two ago outling the flat tappet cam/lifter issues and included a list of their high zinc & phosphorous racing, diesel and standard use synthetic oils. I'm at work right now and don't have the link to it at the moment.

My Amsoil dealer is working on a new website where you should be able to find more info, or call toll free.
Amsoil source & info.

Posted By: bigsbigelow

Re: Street / Strip Guys, What Oil and Why? - 07/20/10 04:53 PM

Quote:

Speaking of Rotella straight 30 weight, I just broke in a race engine with 4 qts of the conventional Rotella 30w and 2 qts of old castrol 40wt race oil mixed in. Made 4 passes on it at a test & tune and the car ran "ok".

Switched to my usual Amsoil 5w-20 Dominator synthetic racing oil and went racing this past weekend with no other changes. After I started it up, I had to lower the idle rpm by about 2-300! Then compensating for the weather conditions, the car ran AT LEAST .10 faster! Oil pressure was only down slightly (surprisingly) between the straight weight and 5w-20, even after it's hot. Not sure what my engine builder sets the clearances to.

Amsoil had a bulletin issued a year two ago outling the flat tappet cam/lifter issues and included a list of their high zinc & phosphorous racing, diesel and standard use synthetic oils. I'm at work right now and don't have the link to it at the moment.

My Amsoil dealer is working on a new website where you should be able to find more info, or call toll free.
Amsoil source & info.

I work with an Amsoil dealer.

Posted By: 10.90 Racer

Re: Street / Strip Guys, What Oil and Why? - 07/20/10 05:42 PM

Quote:

I run el cheapo Parts Master oil with Comp Cams break in additive......

Posted By: nosboy

Re: Street / Strip Guys, What Oil and Why? - 07/20/10 07:12 PM

strip only guy here.. I ran Castrol 20 w 50 for about 2 or 3 passes to break in engine ( gas ported pistons) and then changed it to LUCAS SYNTHETIC 20 w 50 oil... With gas porting,, the piston rings break in RIGHT NOW and synthetic is ALWAYS the BEST WAY TO GO !!! Weather it be Amsoil ( I ABSOLUTELY HATE AMSOILS MARKETING STRATEGY!!!) or KLOTZ or LUCAS or Mobil ONE,,, SYNTHETIC is ALWAYS the best way to go !!!!

Posted By: Locomotion

Re: Street / Strip Guys, What Oil and Why? - 07/20/10 10:23 PM

I'm home from work!

Anyway, here is the Amsoil TSB outlining their high zinc & phosphorous options for flat tappet camshafts I mentioned earlier:

Amsoil bulletin.

Posted By: BloFish

Re: 383man - 07/20/10 11:08 PM

Valvoline 20w50 racing oil, with a zinc additive

Posted By: CompSyn

Re: Street / Strip Guys, What Oil and Why? - 07/24/10 12:27 AM

Quote:

Quote:

Quote:

... but will suggest strongly that whatever you run on the street should be at least a 15w40 w/ a solid flat-tappet... and 15w50 or 20w50 might be better for the warm months when it thins out after miles of street use.

Interesting statement........What are you basing the thicker oils on...more zinc?

No, I'm thinking along the lines of the different grades' viscosities at different operating temperatures and HTHS (High Temperature High Shear) ratings.

There is a strong correlation between HTHS ratings and reduction of bearing & cam wear from what I've been able find out. The best HTHS ratings (5+) are found in heavier (i.e. 20w50) grades and I haven't seen any of the 10w30 (or similar) show a HTHS rating even in the 4s IIRC.

FWIW, a lot of the HTHS "stuff" came from Charles Navarro and his extensive testing of oils in air-cooled Porche 4-cyl. engines trying to identify oils that showed good resistance to cam & lifter wear when the zinc levels were reduced in common passenger car oils.

The topic of HTHS is a controversial one. The bottom line is if Porsche requires a minimum 3.5 cSt @ 150C HTHS viscosity for their air cooled engines, then one would be prudent to stick with their recommendation.

But can we draw the same conclusions with an American made water cooled V8 engine?

Quote:

�For example an NHRA Pro Stock engine makes over 1,400 HP and uses a 0W-5 weight engine oil. A NASCAR Nextel Cup Engine only makes 850 hp but uses a 5W-20 weight oil. How can a more powerful drag motor use a lighter weight oil? The NHRA Pro Stock motor runs at a cool 100 degrees F. A NASCAR Nextel Cup engine runs around 220 degrees F.� � Joe Gibbs Racing

Remember HTHS viscosity is measured at 150 degrees Celsius which equates to 302 degrees Fahrenheit.

How often do we see motor oil temperatures of 302(F)?

Hint: they don't see oil temps of 302(F) in NASCAR Nextel Cup or NHRA Pro Stock.

Thicker motor oils do handle extreme heat better than thinner ones, but the question we have to consider is how much heat are we dealing with?

Again, I believe that if you have a motor oil pressure gauge AND motor oil temperature gauge, you can select the correct motor oil viscosity as per your engine build and driving habits by using the 10psi per 1000rpm rule of thumb.

After all, real world ET slips show times that are as much as a 0.10th quicker with 30 and even 20 grade motor oils. As long as you�re maintaining good oil pressure though out the rpm range, why miss out on that free 10th?