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Author Topic: Ideas On Piston Pin Oilers  (Read 14470 times)

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Offline SPARKY

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Re: Ideas On Piston Pin Oilers
« Reply #15 on: May 23, 2013, 09:46:17 AM »
Compare the dia of the holes---one of the advantages of the cheap mig weld  tips nozzles  they are easily bent for the final tweaks on aiming and cost about 1/10 as much
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Offline floydjer

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Re: Ideas On Piston Pin Oilers
« Reply #16 on: May 23, 2013, 09:50:24 AM »
The nozzles are pointed  towards the piston head , But at the wrist pin area within a few degrees I`ll guess.
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Offline 38flattie

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Re: Ideas On Piston Pin Oilers
« Reply #17 on: May 23, 2013, 09:51:34 AM »
Thanks Sparky- we'll check them out!

Jerry, that's correct.

I'm thinking we need to insure we have adequate oil to the lifters, and make the piston oilers secondary.
 
What do you guys think of putting a check valve in the system. Something like a 40 PSI check, where everything up to 40 PSI goes to the lifters, then after 40 psi, the check opens sending oil to the piston oilers? 40 psi is just a arbitrary point, right now.
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Offline floydjer

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Re: Ideas On Piston Pin Oilers
« Reply #18 on: May 23, 2013, 10:01:02 AM »
My pea-brain is still seeing that as a bunch of oil being bled off when it isn`t needed....Like the intake and exhaust strokes.
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Offline SPARKY

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Re: Ideas On Piston Pin Oilers
« Reply #19 on: May 23, 2013, 10:02:30 AM »
If anything happens in the lifter bore it is just going to stick open (most likely) on a flat head---I wouldn't worry about them-- the pin and the piston are most likely where you can have a "pin problem" :roll:
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Miss LIBERTY,  changing T.K.I.  to noise, dust, rust, BLUE HATS & hopefully not scrap!!

"Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure or nothing."   Helen Keller

We are going to explore the racing N words NITROUS & NITRO!

Offline 38flattie

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Re: Ideas On Piston Pin Oilers
« Reply #20 on: May 23, 2013, 10:08:48 AM »
Jerry, I'm not worried about a bunch of oil bleeding off. The mains and cam bearings are fed odd of one PSI segment of the pump. The lifters and piston oilers have a dedicated PSI segment of their own, so I think it will be easier for us to maintain a constant spray.

Sparky, I guess me concern is getting enough oil to the roller lifters, and the lifter axles. My thought was that I need oil there all of the time, but only really need the piston oilers at WOT. At WOT, the oil pressure should be high.

« Last Edit: May 23, 2013, 10:16:52 AM by 38flattie »
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With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925

You can't make a race horse out of a pig. But if you work hard enough at it you can make a mighty fast pig. - Bob Akin

http://www.flatcadracing.org/
http://youtu.be/89rVb497_4c

Offline SPARKY

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Re: Ideas On Piston Pin Oilers
« Reply #21 on: May 23, 2013, 10:12:48 AM »
and --my Sr. Memory forgot about the lifter wheels---I was only thinking about the bores.

I will have to monitor our oil pressure, we added the turbos, to the valve spring sprayers and the piston squirters ---even with a big pressure stage---I sure hope I do not have to add another stage
« Last Edit: May 23, 2013, 10:18:04 AM by SPARKY »
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Miss LIBERTY,  changing T.K.I.  to noise, dust, rust, BLUE HATS & hopefully not scrap!!

"Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure or nothing."   Helen Keller

We are going to explore the racing N words NITROUS & NITRO!

Offline 38flattie

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Re: Ideas On Piston Pin Oilers
« Reply #22 on: May 23, 2013, 10:17:10 AM »
Quote from: SPARKY on May 23, 2013, 10:12:48 AM
and --my Sr. Memory forgot about the lifter wheels---I was only thinking about the bores.

 :-D :cheers: :-D
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With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925

You can't make a race horse out of a pig. But if you work hard enough at it you can make a mighty fast pig. - Bob Akin

http://www.flatcadracing.org/
http://youtu.be/89rVb497_4c

Offline Milwaukee Midget

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Re: Ideas On Piston Pin Oilers
« Reply #23 on: May 23, 2013, 10:22:53 AM »
Quote from: 38flattie on May 23, 2013, 09:51:34 AM

What do you guys think of putting a check valve in the system. Something like a 40 PSI check, where everything up to 40 PSI goes to the lifters, then after 40 psi, the check opens sending oil to the piston oilers? 40 psi is just a arbitrary point, right now.


I don't like this idea, and here are my thoughts on it -

Keep the oil flow constant everywhere.  You want consistant heat removal, not one dependent on the whims of a check valve.

If you drop pressure temporarily, or the check gets clogged, an air bubble, you need to back off to get traction, or for what ever reason, the pistons will get way hot, and then - SPLASH - you'll be quenching them when the pressure rebounds.  That could be a huge heat differential on the bottom of the crown in a very short period of time.

And I also expect your pistons will be running a little warmer this year.

 :cheers:

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Offline 38flattie

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Re: Ideas On Piston Pin Oilers
« Reply #24 on: May 23, 2013, 10:28:19 AM »
Chris, the concerns you point out are definately valid, and I've thought about them. I'm really torn on which way to go!

The best way will probably be to test everything on the bench, and get the flow and PSI we want, then leave it alone!

I suspect your right about the pistons being a little warmer this year! :-D
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With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925

You can't make a race horse out of a pig. But if you work hard enough at it you can make a mighty fast pig. - Bob Akin

http://www.flatcadracing.org/
http://youtu.be/89rVb497_4c

Offline Peter Jack

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Re: Ideas On Piston Pin Oilers
« Reply #25 on: May 23, 2013, 12:57:40 PM »
KISS Flattie, KISS. You've got enough complications already. If you leave out the check valve system you've got one less complication.  :-D :-D :-D

Pete
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Offline 38flattie

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Re: Ideas On Piston Pin Oilers
« Reply #26 on: May 23, 2013, 02:01:04 PM »
Pete, I'm sure you're right-simple is better! :cheers:
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With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925

You can't make a race horse out of a pig. But if you work hard enough at it you can make a mighty fast pig. - Bob Akin

http://www.flatcadracing.org/
http://youtu.be/89rVb497_4c

Offline generatorshovel

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Re: Ideas On Piston Pin Oilers
« Reply #27 on: May 26, 2013, 06:03:51 AM »
38flattie, there are some pics of how I approached piston oilers here,
www.dlra.org.au/forum/viewtopic.php?f=18&t=1686&p=21790#p21790
Tiny
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Offline 38flattie

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Re: Ideas On Piston Pin Oilers
« Reply #28 on: May 26, 2013, 07:01:01 AM »
Tiny,

Thanks for the link. That's a nice build, and a very cool way you did the oilers!

I spoke with Dale, and I think we'll use the crank girdle to drill through, instead of the block, but same basic principal.
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With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925

You can't make a race horse out of a pig. But if you work hard enough at it you can make a mighty fast pig. - Bob Akin

http://www.flatcadracing.org/
http://youtu.be/89rVb497_4c

Offline SPARKY

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Re: Ideas On Piston Pin Oilers
« Reply #29 on: May 26, 2013, 09:18:08 AM »
 Tiny thanks for posting that link to let us see your excellent design and great execution

Buddy I think the stud girdle makes by far the most sense
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Miss LIBERTY,  changing T.K.I.  to noise, dust, rust, BLUE HATS & hopefully not scrap!!

"Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure or nothing."   Helen Keller

We are going to explore the racing N words NITROUS & NITRO!
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