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nsracing Samba Member

Joined: November 16, 2003 Posts: 9743 Location: NOVA
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Posted: Sat Nov 25, 2006 11:54 am Post subject: |
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gblakeney wrote: |
I saw some pistons the other day that had oil holes drilled from the oil ring deck through to the wrist pin boss - looked like a really cool way to divert oil straight to the pin rather than just splash.
Has anyone done this themselves? |
I do them all the time to stock pistons. All it is drill work at the correct angle.
I thought about making several drilling jigs so anyone can do it themselves. Almost all high performance pistons out on the market will have this modification done from factory.
The oil will pressurize the ports when its on its way down..scraping off oil off the cylinder walls.
Simple but neat trick really. |
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1961bluebug Samba Member
Joined: November 11, 2002 Posts: 1137 Location: Czech Republic, Europe
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Posted: Thu Apr 02, 2009 3:39 am Post subject: |
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can I have some pics of this mod? what would be a correct size for this hole?
Thanks, |
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Eaallred Samba Member

Joined: May 18, 2003 Posts: 5756 Location: West Valley City, Utah
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Posted: Thu Apr 02, 2009 6:48 am Post subject: |
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The squirters in my 62 Jeep engine are built into the connecting rods and they spray all the time, no pressure limits.
Not so much for cooling though, more just to lubricate. It's an I-4 with over 9" rods. The motor redlines at 3200rpm so there's just not much 'splash oiling' going on way up there in the cylinders.
I can picture a v-notch in the rod working effectively if done right. _________________ Eric Allred
You have to remember something: Everybody pities the weak; Jealousy you have to earn. |
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johnnypan Samba Member

Joined: October 24, 2007 Posts: 7431 Location: sackamenna
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Posted: Thu Apr 02, 2009 10:49 am Post subject: |
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Piston coolers are a vital part of heavy diesel technology,just lost #3 piston and liner on a cummins ISX due to a mechanic using too much silicone gasket maker on a oil cooler gasket...silicon got in the oil galley and plugged the "squirter " and the piston seized...Its definately worth the effort to use coolers if you pushing combustion chamber temps beyond the limit ...cheap insurance provided you have enough oil volume... |
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Scott Faivre Samba Member

Joined: February 26, 2004 Posts: 368 Location: Las Vegas, NV - USA
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Posted: Mon Mar 28, 2011 11:17 pm Post subject: |
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...BUMP!
Has the verdict come in on these oil squirters? I'm still on the fence and I'm at the point in my project that if I'm going to do the mod, I need to do it now. _________________ 66 Sedan & 64 Convertible
64 Vert Resto Gallery |
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Ian Godfrey Samba Member
Joined: September 25, 2006 Posts: 1204 Location: Melbourne Australia
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Posted: Tue Mar 29, 2011 2:26 am Post subject: |
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Scott, 2387, 175 flywheel hp. heavy ghia, SE heads (less fins) flat out on the curcuit (110mph sustained), 280 F heads on a 100 degree day. all tin etc with 2 mods, ceramic head and piston coating and porsche squirters, really keep the temps down.
I have no back to back testing, but i am very happy with the result. Dakota digital not VDO so very accurate temps. 1600's get hotter than this if you flog them!
I reckon squirters are a logical part of the package IF you need additional cooling in your application. |
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yamaducci Samba Member

Joined: March 30, 2010 Posts: 2373 Location: Mount Airy, Maryland
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Posted: Tue Mar 29, 2011 6:13 am Post subject: |
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I just had them done on my 2500cc turbo case; should receive it Thursday so no testing yet but I can tell you that the majority of 1600 class desert racing engine have them and don't use a 30,mm pump. Most use 26-28mm. THey steadily run in the 3500-6000RPM range so the pressure is there to make them work well. _________________ -John Cox
My 2498 Turbo Re-Build Thread: http://www.thesamba.com/vw/forum/viewtopic.php?p=5578697#5578697
3rd Brake Light Safety Stars- I still have a couple with blue light left. Email me if interested. |
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flyinglow94 Samba Member

Joined: January 17, 2005 Posts: 1173 Location: Las Vegas, Nevada
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Posted: Sat May 14, 2011 10:07 am Post subject: |
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So where is the best place to get the Porsche oil squirts? I have looked on line at some Porsche suppliers and didnt see an advertisement on these little things. Does any one have a part # they can share? _________________ "What we obtain too cheap, we esteem too lightly: 'tis dearness only that gives everything its value. Heaven knows how to put a proper price upon its goods; and it would be strange indeed if so celestial an article as FREEDOM should not be highly rated."
"Socialism is a philosophy of failure,the creed of ignorance, and the gospel of envy,its inherent virtue is the equal sharing of misery.." |
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yamaducci Samba Member

Joined: March 30, 2010 Posts: 2373 Location: Mount Airy, Maryland
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Posted: Sat May 14, 2011 10:36 am Post subject: |
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flyinglow94 wrote: |
So where is the best place to get the Porsche oil squirts? I have looked on line at some Porsche suppliers and didnt see an advertisement on these little things. Does any one have a part # they can share? |
http://www.pelicanparts.com/cgi-bin/smart/more_inf...8%39%29%20
Edit: I had my parts at Brothers Machine but they told me they sub that procedure out.
Not sure but Rimco may have been the guys. I know they have been doing it forever. FAT can do it as well. _________________ -John Cox
My 2498 Turbo Re-Build Thread: http://www.thesamba.com/vw/forum/viewtopic.php?p=5578697#5578697
3rd Brake Light Safety Stars- I still have a couple with blue light left. Email me if interested.
Last edited by yamaducci on Tue May 17, 2011 6:01 am; edited 1 time in total |
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craigman Samba Member

Joined: March 28, 2004 Posts: 2425 Location: redding
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Posted: Sat May 14, 2011 2:29 pm Post subject: |
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I personally think squirts would be a great addition to any build. Stock to wild.
I'd love to try them someday. |
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