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Piston Cooling Jets on a Vair Engine
Posted by: glivorsi ()
Date: September 21, 2016 07:17AM

Most modern diesel and turbo gasoline engines incorporate piston cooling jets that spray a continuous stream of oil to the backside of the pistons to cool them. Has anyone ever incorporated this into a Vair engine?

Greg in Wildwood, MO (part of the St. Louis urban sprawl)

1965 Monza Vert 110PG, Crocus Yellow with black interior and top

2014 Honda Accord V6 (DD)
2017 Honda Pilot (wifemobile)
2012 Chevy Sonic 1.8L (kid's car)
1997 Honda CBR1100XX
2006 Mazdaspeed 6 (no longer own)

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Re: Piston Cooling Jets on a Vair Engine
Posted by: JamesD ()
Date: September 21, 2016 07:56AM

I know for sure that Roger Gault did. Here's a picture.



James
'65 Corsa 4-speed, '65 Corsa V8                                                       Santa Clarita, CA.
“I may not always drive a car, but when I do, I prefer a Corvair.&nbsp Stay loose, my friends.”

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Re: Piston Cooling Jets on a Vair Engine
Posted by: coleslaw31 ()
Date: September 21, 2016 08:06AM

Now that's pretty cool!

South Carolina Upstate



68 Monza convertible 140 4spd A/C (coming soon)
66 Corsa coupe 140 4spd

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Re: Piston Cooling Jets on a Vair Engine
Posted by: Phil Dally ()
Date: September 21, 2016 08:14AM

Did you ever locate anymore archives James?

Crankcase and crankshft are still missing.


Paso Robles CA-Sidewinders (SCTA Charter Member 1934)-CORSA Member-Central Coast Corsa-Ventura County Corvair-Corvanatics-California Angels Fan Since 1978...World Series Champions 2002 & 9 AL West Division Titles-So Cal Gas Since 1974 (Now Retired Again) Rehired as Contractor Seasonally-RACECAR 148.253 MPH Unsafe at Any Landspeed F/BGALT Late Model Coupe-ZONKER 1965 Monza Weber Turbo 95/PG Coupe-GEM 1966 500 140/PG Sport Sedan Factory A/C 36K Original Miles-SANDRAIL B&M Blown Methanol 3.1L Mid Engine Funco-DUCK 1965 110/PG Monza Coupe Parts Car-CRUSTY 1966 110/PG Factory A/C Coupe Parts Car-2013 Ford F250 Super Duty XLT Four Door Crew Cab Short Bed 6.7 Powerstroke-Grand Design Momuntum 350M Luxury Toy Hauler-When I Grow Up I'm Selling Everything and Buying a Vintage Triple Weber 911S Because I'll Never be Able to Afford the Miura!!!

Attachments:

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Re: Piston Cooling Jets on a Vair Engine
Posted by: coleslaw31 ()
Date: September 21, 2016 08:28AM

Need to get this setup. Looking into things to do to my corsa engine to hop it up along with mods like this to help cooling. Also any info on external oil coolers? Thinking of having one put in the front nose.

South Carolina Upstate



68 Monza convertible 140 4spd A/C (coming soon)
66 Corsa coupe 140 4spd

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Re: Piston Cooling Jets on a Vair Engine
Posted by: Phil Dally ()
Date: September 21, 2016 08:36AM

P/M Sent!!

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Re: Piston Cooling Jets on a Vair Engine
Posted by: 63turbo ()
Date: September 21, 2016 12:51PM

Here's a picture of a efi turbo corvair powered kit car with the oil cooler in the nose: [us-mg4.mail.yahoo.com]

------------------------------------

Kevin Nash
Friday Harbor Washington
63 Spyder, Daily driver, EFI read about my project here: [corvaircenter.com]
first test start on EFI here:[www.youtube.com]
first official EFI boost test here:[www.youtube.com]
My new fan! [corvaircenter.com]
engine less 62 Spyder
Canadian 64 Monza Parts car



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Re: Piston Cooling Jets on a Vair Engine
Posted by: coleslaw31 ()
Date: September 21, 2016 01:06PM

63turbo Wrote:
-------------------------------------------------------
> Here's a picture of a efi turbo corvair powered
> kit car with the oil cooler in the nose:
> [us-mg4.mail.yahoo.com]
> b2crg7jvdc

Link doesn't work

South Carolina Upstate



68 Monza convertible 140 4spd A/C (coming soon)
66 Corsa coupe 140 4spd

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Re: Piston Cooling Jets on a Vair Engine
Posted by: davemotohead ()
Date: September 21, 2016 01:25PM

IMO the piston squirters was the reason the Gault engine failed and ate a rod bearing, I think the squiters were too big and lowered the over all oil pressure too much and other parts failed.







1960 4dr sedan caveman car
1961 Rampside (Chetside)
1962 Rampside (Barnside)
1962 Short Rampside (Shortside)
1962 Monza 700 Wagon
1963 Monza 900 coup (General Nader)

-----------------------------------
Rust Free Lancaster Ca

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Re: Piston Cooling Jets on a Vair Engine
Posted by: coleslaw31 ()
Date: September 21, 2016 01:29PM

Makes since would you put a bigger oil pump to compensate?

South Carolina Upstate



68 Monza convertible 140 4spd A/C (coming soon)
66 Corsa coupe 140 4spd

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Re: Piston Cooling Jets on a Vair Engine
Posted by: glivorsi ()
Date: September 21, 2016 02:07PM

The oil flow and pressure would definitely need to be calculated when adding these. It may involve more than just upsizing the pump if the jets are fed from the same galleries as the main and rod bearings.

Greg in Wildwood, MO (part of the St. Louis urban sprawl)

1965 Monza Vert 110PG, Crocus Yellow with black interior and top

2014 Honda Accord V6 (DD)
2017 Honda Pilot (wifemobile)
2012 Chevy Sonic 1.8L (kid's car)
1997 Honda CBR1100XX
2006 Mazdaspeed 6 (no longer own)

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Re: Piston Cooling Jets on a Vair Engine
Posted by: 63turbo ()
Date: September 21, 2016 03:03PM

The oil spray jets are made by BING, and have a mechanism to prevent spraying
until a certain pressure is exceeded- the ones that Roger Gault used (Phil's
pictures) were set to open at 40psi- its difficult to see how oil spray jets can starve an engine for oil in this manner, particularly if an HV pump is used.

------------------------------------

Kevin Nash
Friday Harbor Washington
63 Spyder, Daily driver, EFI read about my project here: [corvaircenter.com]
first test start on EFI here:[www.youtube.com]
first official EFI boost test here:[www.youtube.com]
My new fan! [corvaircenter.com]
engine less 62 Spyder
Canadian 64 Monza Parts car



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Re: Piston Cooling Jets on a Vair Engine
Posted by: Phil Dally ()
Date: September 21, 2016 03:09PM

The Gault engine failed because the Brand X remote oil cooler was plumbed backwards causing a restriction.

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Re: Piston Cooling Jets on a Vair Engine
Posted by: JamesD ()
Date: September 21, 2016 04:04PM

Roger calculated the oil flow of the nozzles, and it worked out that it pretty well matched the extra flow of the high-volume pump kit.&nbsp And as Kevin mentioned, the nozzles have check valves.&nbsp Roger is a very thoughtful and precise fellow, and spent three years planning and assembling his engine.



I enhanced the check valve.

For anyone that wants to pursue this, it is a Bing 44-989, and is still available.&nbsp It has an internal valve that opens at 2-2.7 bar (29-49 psi), and a rated flow of 1.8L/min (.5 gpm) at 60 psi.

James
'65 Corsa 4-speed, '65 Corsa V8                                                       Santa Clarita, CA.
“I may not always drive a car, but when I do, I prefer a Corvair.&nbsp Stay loose, my friends.”



Edited 1 time(s). Last edit at 09/21/2016 04:11PM by JamesD.

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Re: Piston Cooling Jets on a Vair Engine
Posted by: JamesD ()
Date: September 21, 2016 04:21PM

Phil Dally Wrote:
-------------------------------------------------------
> Did you ever locate anymore archives James?
>
> Crankcase and crankshft are still missing.




James
'65 Corsa 4-speed, '65 Corsa V8                                                       Santa Clarita, CA.
“I may not always drive a car, but when I do, I prefer a Corvair.&nbsp Stay loose, my friends.”

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Re: Piston Cooling Jets on a Vair Engine
Posted by: Phil Dally ()
Date: September 21, 2016 06:50PM

Thank You James!!!

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Re: Piston Cooling Jets on a Vair Engine
Posted by: joelsplace ()
Date: November 07, 2019 08:32PM

Since this has come up again...
Doesn't spraying oil on the bottom of the pistons change the balance? It would make them heavier on the down stroke.
Also if anyone has any of the lost pictures it would be great to put them back.

Joel
Northlake, TX
5 Ultravans, Lost count at 100 Corvairs...




Edited 1 time(s). Last edit at 11/07/2019 08:32PM by joelsplace.

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Re: Piston Cooling Jets on a Vair Engine
Posted by: American Mel ()
Date: November 07, 2019 10:40PM

joelsplace Wrote:
-------------------------------------------------------
> Since this has come up again...
> Doesn't spraying oil on the bottom of the pistons change the balance? It would make them heavier on the down stroke.
> Also if anyone has any of the lost pictures it would be great to put them back.


Since the spray occurs at a pre-set pressure and is not dependent upon direction of piston travel, I fail to see an issue.
The oil is being squirted on the piston, during ALL strokes.

-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
WA. state, 1 mile south of the Canadian border,
I am not at the end of the world, but you can see it from here.
Have; '66 Monza Coupe - 140, 4-spd. Daily driver beater
'67 Monza Vert. - 140, 4-spd. Daily driver beater
'67 A/C Moredoor Monza
Have had; '61 Monza coupe, '62 Monza Wagon, '63 Spyder, '65 Corsa
.
non-vair
'04 Dodge Cummins Quad Dualy, approaching 400K
17'Terry

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Re: Piston Cooling Jets on a Vair Engine
Posted by: Phil Dally ()
Date: November 08, 2019 03:21AM

No new pictures as far as I know.

I sold all the 3.6 Gault parts.

Eventually it will be used.

As a tow vehicle engine.

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Re: Piston Cooling Jets on a Vair Engine
Date: November 08, 2019 06:35AM

Something similar I had thought of was co2 nozzles under the turkey roaster. Spray a cooling blast like they do on intercoolers.

1961 Corvair 700 Sedan - 3sp - Gasoline Heat - Lowered a bit - Rust in Progress
I live my life 19.5 seconds at a time.


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